WO1992001081A1 - Procede et appareil de depot de films homogenes par metallisation au vide simultanee et metallisation au vide croisee - Google Patents
Procede et appareil de depot de films homogenes par metallisation au vide simultanee et metallisation au vide croisee Download PDFInfo
- Publication number
- WO1992001081A1 WO1992001081A1 PCT/US1991/004738 US9104738W WO9201081A1 WO 1992001081 A1 WO1992001081 A1 WO 1992001081A1 US 9104738 W US9104738 W US 9104738W WO 9201081 A1 WO9201081 A1 WO 9201081A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- target
- sputtering
- substrate
- targets
- sputtered
- Prior art date
Links
- 238000004544 sputter deposition Methods 0.000 title claims abstract description 127
- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 136
- 239000000758 substrate Substances 0.000 claims abstract description 124
- 238000000151 deposition Methods 0.000 claims abstract description 64
- 230000008021 deposition Effects 0.000 claims abstract description 38
- 238000005546 reactive sputtering Methods 0.000 claims abstract description 11
- 238000000429 assembly Methods 0.000 claims description 40
- 230000000712 assembly Effects 0.000 claims description 40
- 238000000576 coating method Methods 0.000 claims description 32
- 239000011248 coating agent Substances 0.000 claims description 27
- 229910052718 tin Inorganic materials 0.000 claims description 27
- 239000011135 tin Substances 0.000 claims description 27
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 22
- 239000011701 zinc Substances 0.000 claims description 19
- 229910052725 zinc Inorganic materials 0.000 claims description 18
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 17
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 13
- 230000003628 erosive effect Effects 0.000 claims description 13
- 239000010936 titanium Substances 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 9
- 229910052726 zirconium Inorganic materials 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 230000006872 improvement Effects 0.000 claims description 6
- 230000008093 supporting effect Effects 0.000 claims description 5
- 229910052738 indium Inorganic materials 0.000 claims description 4
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052797 bismuth Inorganic materials 0.000 claims description 3
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 238000001755 magnetron sputter deposition Methods 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910052707 ruthenium Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 239000010955 niobium Substances 0.000 claims description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 2
- 229910052804 chromium Inorganic materials 0.000 claims 2
- 239000011651 chromium Substances 0.000 claims 2
- 229910052720 vanadium Inorganic materials 0.000 claims 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 2
- GAYPVYLCOOFYAP-UHFFFAOYSA-N [Nb].[W] Chemical compound [Nb].[W] GAYPVYLCOOFYAP-UHFFFAOYSA-N 0.000 claims 1
- 230000009977 dual effect Effects 0.000 abstract description 25
- 238000012864 cross contamination Methods 0.000 abstract description 17
- 230000003068 static effect Effects 0.000 abstract description 5
- 239000010408 film Substances 0.000 description 87
- 239000007789 gas Substances 0.000 description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 210000002381 plasma Anatomy 0.000 description 12
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 239000011261 inert gas Substances 0.000 description 9
- 239000013077 target material Substances 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 230000004907 flux Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- 239000011787 zinc oxide Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000012809 cooling fluid Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 229920006384 Airco Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000010849 ion bombardment Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- WFISYBKOIKMYLZ-UHFFFAOYSA-N [V].[Cr] Chemical compound [V].[Cr] WFISYBKOIKMYLZ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000005328 architectural glass Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000000682 scanning probe acoustic microscopy Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/34—Gas-filled discharge tubes operating with cathodic sputtering
- H01J37/3411—Constructional aspects of the reactor
- H01J37/345—Magnet arrangements in particular for cathodic sputtering apparatus
- H01J37/3455—Movable magnets
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering
- C23C14/352—Sputtering by application of a magnetic field, e.g. magnetron sputtering using more than one target
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/34—Gas-filled discharge tubes operating with cathodic sputtering
- H01J37/3402—Gas-filled discharge tubes operating with cathodic sputtering using supplementary magnetic fields
- H01J37/3405—Magnetron sputtering
Definitions
- This invention relates generally to sputtering and more particularly to an apparatus and method for depositing on substrates homogeneous films of two or more different materials.
- Sputtering is the physical ejection of material from a target as a result of ion bombardment of the target.
- the ions are usually created by collisions between gas atoms and electrons in a glow discharge.
- the ions are accelerated into the target cathode by an electric field.
- a substrate is placed in a suitable location so that it intercepts a portion of the ejected target atoms. Thus, a coating is deposited on the surface of the substrate.
- Sputter deposition of thin films may be carried out in a variety of systems that differ in sputtering configuration, geometry, vacuum system, target type and size, substrate position, temperature, and so forth. Ion beam, diode, and magnetron systems are examples of sputtering techniques.
- magnetron systems With magnetron systems, high sputtering rates can be achieved and high quality coatings can be produced.
- a magnetron cathode a magnetic field is used to confine the glow discharge plasma and to increase the path length of the electrons moving under the influence of the electric field. This results in an increase in the gas-atom electron collision probability. This in turn leads to a much higher sputtering rate than obtained without the use of magnetic confinement. Further, such a sputtering,process can be accomplished at a much lower gas pressure.
- the glow discharge plasma is confined by a magnetic structure to an annular region which is parallel to the surface of the flat target plate.
- the magnetic confinement of the plasma results in a high rate of erosion in an annular region on the surface of the target.
- a substrate can be rapidly covered with a metallic coating by using a direct current ("DC") potential to sputter a target plate of the desired metal in a chamber containing an inert gas.
- DC direct current
- planar magnetrons severe arcing problems are encountered when planar magnetrons are used in reactive sputtering to form certain metal-oxide and other high dielectric coatings. The arcing is due to the formation of a thick dielectric layer on the target surface.
- a cathode target assembly in the form of an elongated, cylindrical tube carries a layer of material applied to its outer surface that is to be sputtered.
- the target tube is rotated about its longitudinal axis.
- a magnetic structure is arranged inside the tube, but does not rotate with it. It is believed that cylindrical magnetrons can reactively sputter dielectric materials because when the target surface is rotated through the stationary plasma, the top layer of material covering substantially its entire surface is sputtered as that surface is rotated through the magnetic field.
- Any dielectric that is deposited on a portion of the target surface as it rotates outside the region of the magnetic field is removed by sputtering when it again passes through the field. Layers of dielectric do not form, thereby reducing arcing. This phenomenon may be referred to as a "self-cleaning" characteristic of the rotating cylindrical magnetron.
- a description of the method employing a rotating cylindrical magnetron for coating substrates with dielectric materials such as silicon dioxide and silicon nitride is found in co-pending application Serial No. 07/433,690, filing date November 8, 1989, by inventors Wolfe et al., of common assignee, incorporated herein by reference. It is possible with reactive sputtering to prepare a wide range of films having different applications.
- films containing mixtures of Zr0 2 and A1 2 0 3 were produced by sputtering composite targets of zirconium and aluminum and reacting the metal vapor with oxygen.
- Gilmore, C. M. and Quinn, C. "Stabilization of Tetragonal Zr0 2 with A1 2 0 3 in Reactive Magnetron Sputtered Thin Films", J. Vac. Sci.
- a graded film is characterized by having a graded (non- uniform) refractive index.
- Hanak, J. J. "Co-Sputtering — Its Limitations and Possibilities", Le vide. No. 175, 1975, 11-18.
- a graded composition is useful for creating very thin interfaces, but optically a graded refractive index is acceptable only for making thick Rugate filters; it is not useful in the manufacture of low-emissivity, solar control, or wide-band, antireflection optical films.
- co-sputtering is accomplished by each of two rotating cylindrical targets directing a portion of their sputtered material onto the other target so that each sputters a combination of the two materials onto to form the substrate film.
- the concept of using a rotating cylindrical magnetron in reactive sputtering to deposit films of a high dielectric constant, such as silicon dioxide, is generally known. What is surprising is that deposition of homogeneous films comprising different materials can be accomplished by employing dual cylindrical magnetrons in reactive co-sputtering wherein the magnetic structures in each cathode are aligned to cause target cross-contamination.
- cross-sputtering is accomplished by utilizing one magnetron to sputter its target material onto one or more different material targets of another magnetron without directly forming the film on the substrate.
- one magnetron having a target of one material is oriented to cross-contaminate another magnetron having at least one rotating cylindrical target of another material, whereas the magnetic structures in the second magnetron are normal to the substrate.
- the first magnetron deposits a film onto the target(s) of the second magnetron and avoids directly depositing its material onto the substrate.
- the material of both magnetrons is then sputtered off the target(s) of the second magnetron and onto the substrate to form a homogeneous film from both of the different target materials.
- Figure 1 is a schematic representation of a dual rotating cylindrical magnetron sputtering system for depositing homogeneous films according to the present invention
- Figure 2 is a cross-sectional view of dual cathode assemblies of a first co-sputtering magnetron embodiment wherein their magnetic assemblies are tilted toward each other;
- Figure 3 is a schematic representation of film deposited on a dynamic substrate using dual cathode wherein the magnetic structures are not tilted;
- Figure 4 is a graph comparing the refractive index of films as a function of the films• position vis ⁇ a-vis dual cathode assemblies
- Figure 5 is a graph of the atomic ratio (%) of tin to tin and zinc of films as a function of the films ⁇ position vis-a-vis dual cathode assemblies
- Figure 6 is an Auger profile of an Al 2 0 3 /Si0 2 film co-sputtered from a dual rotating cylindrical magnetron wherein the magnetic structures are tilted at
- Figure 7 is an Auger profile of an Al 2 0 3 /Si0 2 film co-sputtered wherein the magnetic structures are at 25° ;
- Figure 8 is a cross-sectional view of dual cathode assemblies of a second co-sputtering magnetron embodiment that includes a control system;
- Figures 9A and 9B are curves that illustrate the operation of the magnetron of Figure 8.
- Figure 10 is a flow diagram that sets forth a process of adjusting the control system of the magnetron of Figure 8;
- Figure 11 is a graph of the atomic ratio (%) of zirconium to zirconium and titanium in a film as a function of position across a deposition zone for different directions of rotation of dual targets;
- Figure 12 is a graph of the atomic ratio (%) of tin to tin and zinc in a film as a function of position across a deposition zone for two different speeds of rotation of dual targets;
- Figure 13 is a cross-sectional view of a dual rotating cylindrical target magnetron in a first cross- sputtering embodiment
- Figure 14 is an alternate cross-sputtering magnetron sputtering embodiment, shown in cross-section;
- Figure 15 shows a modification of the magnetron of Figure 14.
- a plasma is formed in an enclosed reaction chamber 10, in which a vacuum is maintained, where a substrate, such as substrate 12, is placed for depositing a thin film of material upon it.
- the substrate 12 can be any vacuum compatible material, such as metal, glass, and some plastics.
- the substrate can be stationary or moving.
- the film can also be deposited over other films or coatings that have previously been formed on a substrate surface.
- Each of the cathode assemblies 14 and 114 comprises generally an elongated cylindrical tube 16 mounted in the reaction chamber 10.
- An elongated magnet assembly 18 is carried within a lower portion of the tube 16, extends substantially its entire length, and is restrained against rotation with it.
- the cathode assemblies are substantially parallel to each other.
- the tube 16 is preferably cooled by passing water or another heat transfer fluid through it.
- the tube 16 is formed of a suitable non- magnetic material such as, for example, brass or stainless steel, and is of a diameter, wall thickness and length required for a particular operation to be performed.
- a layer of selected material 120 is applied to the outer surface of tube 16 of cathode assembly 114.
- the selected materials 20 and 120 are different in the co-sputtering process.
- the tube 16 in each cathode assembly is supported in a manner to be rotated about its longitudinal axis by a target drive system 22. The orientation of the longitudinal axis depends upon the shape and position of the substrate that is being coated.
- the substrate 12 is held horizontally and is flat, and the longitudinal axis of the tube 16 is also horizontal, thus being parallel with the substrate surface to be coated.
- the tube 16 is rotatably held at each end in a horizontal position.
- a support structure at one end also allows cooling fluid to be introduced into the tube 16 and withdrawn from it, and contains a mechanism for driving the tube 16 from a motor source outside of the vacuum chamber 10. Rotating seals are included in this support structure for isolating the cooling fluid from the vacuum chamber.
- a support structure at an opposite end includes an electrical brush assembly for connecting the tube to a negative voltage.
- the magnetic assembly 18 in each cathode assembly comprises an array of magnetic poles arranged in straight parallel rows along the length of the tube 16. Each row has three alternating magnetic poles 24, 26 and 28. In one configuration, the poles 24, 26 and 28 are arranged to have respective north, south and north polarities. An opposite configuration of respective south, north and south polarities may also be used. In either case, the magnetic poles 24, 26 and 28 are positioned in relation to the tube 16 so that their lines of force run from one pole, through the tube 16, and back through the tube in a curved path to an adjacent pole having an opposite polarity. This arrangement generates what is called a magnetic tunnel, which not only allows the sputtering rate to be increased, but also causes the target materials 20 and 120 to be removed faster inside the tunnel, especially in the middle of this magnetic pattern.
- FIG. 1 shows a cross- section view of the dual cathode assemblies.
- the angles at which the magnetic structures are rotated are designated as ⁇ - and ⁇ z , respectively.
- ⁇ and ⁇ z need not be identical, and indeed, as described herein, depending on the sputtered materials, in some preferred embodiments the angles are different. Each of these angles can range from zero degrees to ninety degrees, depending upon various other parameters, non-zero angles often lying in a range of from 25-50 degrees.
- the target surfaces 14 and 114 each usually include a single sputterable element different from the other, the following elements typically employed, for example, in glass coating: aluminum, indium, nickel, silicon, tantalum, tin, titanium, zinc, boron, tungsten, niobium, hafnium, magnesium, silver, ruthenium, vanadium chromium, molybdenum, bismuth and zirconium.
- the target surfaces 14 and 114 generally contain minor amounts of other elements to provide structural integrity, promote sputtering, and for other similar purposes.
- the last flux 162 is from the second target and results in the third layer 168.
- the first layer 166 has a graded composition starting from the almost pure first target material to the composition of the second layer 160.
- the composi ⁇ tion of the second layer 160 can be changed by varying the cathode potentials.
- the composition of the second layer was non-homogeneous.
- the magnetic structures in each of the magnetrons can be oriented relative to one another such that the magnets thereof are at an acute angle and direct the sputtered material downwardly and inwardly to focus it upon the substrates that are located therebeneath. Due to this magnetic arrangement, the material sputtered from the two targets is focused onto a relative small area of the substrate, thereby improving the deposition rate. McKelvey, "Magnetron Cathode Sputtering Apparatus", U.S. Patent 4,466,877.
- surprisingly homogeneous films comprising Sn0 2 and ZnO were produced in asymmetrical sputtering, that is, where the angles of the magnetic structures in the dual cylindrical magnetrons are different.
- 0, and ⁇ 2 are set at 0 ⁇ and 90°, respectively.
- target 14 is cross-contaminated by material sputtered from target 114; and the substrate, in turn, is deposited with materials sputtered from target 14.
- Figure 2 is a "W" configuration of three elongated magnets 24, 26 and 28.
- An alternative is a "U” configuration wherein a single magnet is position in the middle and a "U” shaped piece of magnetic material is positioned to form poles on either side of the magnet and of opposite polarity. In either case, it is usually desirable to position the pole faces as close to an inner surface of the tube 16 as possible.
- the magnetic assembly 18 is preferably supported within the tube 16 from a stationary axial rod or cooling fluid tube.
- a cathode potential, V, sufficient to cause sputtering to occur is supplied to the tubular targets 16 in each cathode assembly from DC power sources 30 and 230 through a power lines 32 and 232 having sliding contacts 34 and 234 with the tubes 16 by a conventional electrical brush.
- the enclqsure of the reaction chamber 10 is conductive and electrically grounded. It can serve as an anode in the sputtering process.
- a separate anode may be optionally employed and maintained at a small positive voltage.
- Such an anode is positioned for example above the target tubes and is preferably water cooled in order that high power levels may be employed.
- the reaction chamber 10 is provided with an outlet tube 36 communicating with a vacuum pump 38.
- a gas supply system provides the chamber 10 with the gases necessary for the coating operation.
- a first gas supply tube 40 extends into the coating chamber 10 and from a source 42 of an inert gas.
- the inert gas is preferably argon for the specific, methods being described.
- Nozzles 44 connected to inlet tube 40 distribute the inert gas in a region above the rotating cathodes. It is the inert gas that breaks down into electrically charged ions under the influence of an electric field established between the target surfaces 20 and the grounded chamber enclosure or separate floating anode. The positive ions are attracted to and bombard the target surfaces 20 and 120, under the influence of the electric field.
- a second gas supply tube 46 extends through the coating chamber 10 from a reactive gas source 48. Nozzles 50 connected to inlet tube 46 distribute the reactant gas close to and across the width of the substrate 12 being coated. Molecules of the reactive gas combine with molecules sputtered from the target surfaces, as a result of ion bombardment, to form the desired molecules that are deposited on the top surface of the substrate 12.
- the inert and reactive gases from the sources 42 and 48 can be combined and delivered into the chamber 10 through a common tube and set of nozzles.
- the delivery tube is preferably positioned along a side of the rotating target tubes 16 and parallel with its longitudinal axis. Two such tubes can be used, one on each side of the target tubes 16 and parallel with its longitudinal axis, each delivering the same combination of inert and reactive gases. Also, more than one reactive gas can be simultaneously supplied, depending upon the film being deposited.
- Reactive sputtering individual films of Al 2 0 3 and Ti ⁇ 2 , and symmetrically reactive co-sputtering of the same were conducted using the above-described dual cathode assemblies wherein t and 0 2 were fixed at 30°. A1 2 0 3 and Ti0 2 were sputtered at 3 kW and 6 kW, respectfully. Targets of cathode assemblies 14 and 114 were titanium and aluminum, respectively. When sputtering only Ti0 2 , the potential of cathode 114 (Al) was zero and conversely when sputtering only A1 2 0 3 , the potential of cathode 14 (Ti) was zero. The substrates were static; that is, not moved once set in place.
- Table 1 sets for the process data for production of the films.
- the potentials refer to the potential between the respective cathode assembly tube and the ground.
- the power refers to the power supplied.
- the current was measured at the power source.
- the flow rates of the inert gas and reactive gas were measured in standard cubic centimeters per minute (SCCM) .
- SCCM standard cubic centimeters per minute
- the pressure of the reaction chamber is measured in microns.
- the first value refers to cathode 14 (Al) and the second refers to cathode 114 (Ti).
- Figure 4 is a graph of the refractive index of each film as a function of t e film's position vis-a-vis the two cathode assemblies.
- positions 5.0 and 20.0 designate substrate positions directly below the cathode assemblies 14 (Al) and 114 (Ti) , respectively, and 12.5 cm designates the point on the substrate midway in between.
- the refractive index of the A1 2 0 3 (curve 310) is 1.65 whereas directly under the titanium target the refractive index of Ti0 2 (curve 320) is 2.4-2.5.
- the refractive index decreased to only 1.55 and 2.0-2.2 for A1 2 0 3 and Ti0 2 , respectively.
- the refractive indices of the co-sputtered Al 2 0 3 /Ti0 2 film changed only slightly with substrate position along the center line, which indicates that the variation in composition of the Al 2 0 3 /Ti0 2 film was not significant.
- the first value refers to cathode 14 (S ⁇ ) and the second refers to cathode 114 (Zn).
- Figure 5 is a graph of the atomic ratio (%) of tin to tin and zinc on the films as a function of the film's position vis-a-vis the cathodes.
- 0 1 and 0 2 were both fixed at 30°, with power to the tin and zinc targets set at 0.4 kW and 0.7 kW, respectively.
- curve 170 the tin concentration in the symmetric co-sputtered films, deposited along the center line, varied for more than 10%. However, by increasing cross-contamination of the zinc target, this variation was reduced significantly.
- a coating process In industrial applications, it is not uncommon for a coating process to be a continuous one where substrates are coated as they move across the target assembly. With the present invention, film homogeneity is maintained even when co-sputtering on dynamic substrates.
- Reactive Symmetric Co-Sputtering of A1 2 0 3 and SiQ 2 at 15° and 25° on a Dynamic Substrate Using the dual cathode magnetron described above, reactive symmetric co-sputtering of Al 2 0 3 and Si0 2 was conducted on dynamic substrates. Two magnetic structure angles, 15° and 25°, were chosen. Table 3 sets forth the operating conditions of the co- sputtering.
- the first value refers to cathode 14 (Al) and the second refers to cathode 114 (Si).
- FIG. 6 is an Auger profile of the Al 2 0 3 /Si0 2 film co- sputtered at 15°.
- the profile shows that the amount of oxygen (curve 180) in successive layers of the film remains relatively constant throughout the co-sputtering process.
- the amount of aluminum (curve 182) varies significantly, with the concentration following a sinusoidal-like pattern beginning from a relatively high concentration.
- the amount of silicon (curve 184) in the layers of the film varied and also followed a sinusoidal pattern. However, in contrast to aluminum, the silicon pattern began at a relatively low amount.
- the Auger analysis detected a slight amount of carbon (curve 186) contamination in the film.
- the Auger profile indicates that symmetric co- sputtering of Al 2 0 3 and Si0 2 at magnetic angles of 15° on a dynamic substrate produces a film with a non- homogeneous composition.
- the profiles of aluminum and silicon confirm that A1 2 0 3 and Si0 2 are deposited at different rates depending upon the substrate's position relative to the aluminum and silicon targets.
- the Auger profile as shown in Figure 7 shows that aluminum (curve 190) and silicon (curve 192) are deposited at relatively constant rates when co-sputtering takes place at 25°.
- Curves 194 and 196 refer to the oxygen and carbon contents of the film, respectively. It is believed that when co- sputtering at 25°, there is sufficient cross- contamination of the targets so that the flux of aluminum and silicon from each target is substantially the same. Thus, the film deposited is homogeneous.
- FIG 8 A generalized version of the co-sputtering system of Figures 1 and 2 is given in Figure 8, wherein several of the parameters of operation of the sputtering apparatus are individually controllable.
- the rotatable position of the magnets, the power applied to each target and the speed of rotation of each target are cooperatively adjustable in order to obtain a film deposited on a substrate that contains a desired homogeneous mixture of compositions formed from each of the targets.
- adjacent rotating cylindrical magnetron target assemblies 201 and 203 include respective cylindrical targets 205 and 207 which rotate about their respective axes 209 and 211.
- Provided at the outside of the targets 205 and 207 are different materials, denoted as Ml and M2, respectively, to be sputtered into a common substrate film.
- the magnet assembly 217 includes pole faces 221, 223 and 225, and the magnetic assembly 219 contains pole faces 227, 229 and 231.
- the magnetic assemblies 217 and 219 are rotatably positionable in order that respective axes 233 and 235 are set at desired angles Q and ⁇ 2 with respective vertical references 237 and 239.
- the magnets confine the plasma of the outside of the respective targets to the define erosion zones inbetween adjacent magnetic poles where sputtering of target material is the greatest.
- Such erosion zones or tracks 241 and 243 are indicated for the target assembly 201 and similar erosion zones 245 and 247 are indicated for the target assembly 203.
- These sputtering tracks or erosion zones are held stationary while their cylindrical targets are rotated through them to deposit film on a substrate.
- the circumferential positions of the erosion zones are repositionable by rotation of their respective magnetic assemblies with respect to their supporting coolant tubes.
- the position of the erosion zones determines the direction at which the particles are sputtered from their respective targets, a desired balance being obtained between material being sputtered downward directly onto a moving substrate 249 and the amount sputtered across to the adjacent target surface.
- Each of the cylindrical targets 205 and 207 is rotated by a motor source indicated schematically by drives 251 and 253, respectively.
- the greatest flexibility in adjustment is provided if each of the targets is driven by a separately controllable motor source, but satisfactory results are also obtained when driven by a single variable motor source coupled to both of the cylindrical target assemblies by an appropriate system of gears.
- the desired direction of rotation as indicated in Figure 8, is for the right-hand target to be rotated in a clockwise direction and the left-hand target to be rotated in a counterclockwise direction, for reasons stated hereinafter.
- each of the magnetic assemblies 217 and 219 is made adjustable in rotational position by motor sources indicated schematically at 255 and 257. It is desirable that the angle of each of the stationary magnetic assemblies 217 and 219 be independently adjustable for the contemplated deposition processes.
- Each of the targets 205 and 207 is also coupled to separately controllable power sources 259 and 261. The adjustable speed of rotation, power and magnetic rotatable position are determined and set by an appropriate electronic control system 263.
- a detailed mechanical structure of a preferred rotating target assembly for use with large substrates, such as architectural glass, is given in copending application Serial No. ' 609,815, filed November 6, 1990, by Alex Boozenny et al.
- Conduits 267 and 269 are also provided within the vacuum chamber in order to introduce an inert gas (such as argon) and/or a reactive gas (such as oxygen) in order to support the sputtering operation and react with the material sputtered off the targets.
- Inert and reactive gases can be introduced through the same conduits, but it is generally preferred to introduce the reactive gas near the substrate and the inert gas near the target assemblies.
- the high degree of adjustability is provided in the system of Figure 8 in order to be able to carefully control the relative compositions and homogeneity of a film being deposited on a substrate.
- the given magnetron apparatus will have certain fixed parameters, such as dimensions of vacuum chamber, diameter of targets, magnetic pole spacing, distance between target and the substrate, distance between target assemblies, and the like. But within these and similar constraints of a given piece of apparatus, the independent adjustability of magnetic rotatable position, target power and target rotational speed allows the relative proportions of elements derived from each of the two targets to be adjusted in a manner to maintain homogeneity of the film being deposited.
- Figures 9A and 9B provide exemplary curves intended to illustrate the effect of the three adjustments of the system of Figure 8.
- a curve 271 illustrates generally a typical deposition rate from the target assembly 201 by itself, when totally isolated from the other target assembly 203.
- the rate of deposition, and thus the thickness deposited upon a stationary substrate under it, is highest where the most material is being sputtered from the erosion zones 241 and 243.
- a curve 273 indicates the rate of deposition across a stationary substrate from the target assemble 203 when operating by itself without any influence of the other target assembly 201.
- the speed of rotation of the targets 251 and 253 has no effect. Nor does the direction of rotation of the cylindrical targets affect their individual film sputtering characteristics.
- FIG. 9B shows an example deposition rate characteristic that is desired and achievable by properly making these adjustments.
- Curves 275 and 277 show the relative deposition rate of materials Ml and M2 across the vacuum chamber between extreme positions A and B from materials of the targets 205 and 207, respectively. It is not necessary that the deposition rate of these two materials be the same across the deposition zone, but rather that they have the same relative proportion or ratio within a few percent.
- the film then deposited on the substrate 249 as it passes between points A and B within the vacuum chamber has substantially the same composition at all levels, in contrast to the situation explained earlier with respect to Figure 3.
- the effect of rotatably repositioning the magnet assemblies 217 and 219 in a co-sputtering system is to change the shape of their respective material deposition curves as well as shifting any peaks that exist. For example, if the magnetic assembly 217 of the target assembly 201 is rotated a few degrees counterclockwise, more material of the target 205 is sputtered off of it and onto the target 207, and then resputtered from the target 207. More of the material of the first target 205 is then deposited to the right- hand side of the chamber near the edge B. At the same time, the relative amount deposited near the edge A of the vacuum chamber is reduced.
- the direction of rotation of the targets 205 and 207 affects the distribution of the deposition rate of their respective materials across the vacuum chamber.
- the direction of rotation indicated in Figure 8 is generally preferred since it has been found to increase the deposition of the deficient materials at the tails of the distribution curves while reducing their peaks.
- each of the targets affects the amount of material of the other target that is allowed to accumulate on its surface and thus the proportions of each material that is sputtered from it.
- FIG 10 is a process flow chart which illustrates the steps of adjusting a magnetron of the type of Figure 8 prior to production film depositions being made.
- a first step 279 is, of course, to know what is desired in the film. For example, a mixed tin oxide and zinc oxide film is deposited on the substrate 249 by one target 205 containing substantially pure tin and the other target 207 containing substantially pure zinc on their outside surfaces. Oxygen is then introduced into the chamber through conduits 267 and 269 as a reactive gas in order to form the oxides from each of these materials. A certain atomic ratio of the tin oxide to zinc oxide material in the film will be desired and specified.
- a next step 281 is to adjust the values of the three parameters for each of the target assemblies, namely power, magnet position and rotation speed.
- any difference in the sputtering rates of the tin and zinc material from their respective targets is taken into account. Adjustment of the power supplied to each target principally compensates for this difference, but the magnet angle also does so.
- test films are deposited in a step 283. It is preferable that individual substrate pieces be positioned periodically across the deposition zone between edges A and B of the vacuum chamber. After deposition, the film is analyzed for homogeneity and composition by standard techniques. If the first setting of parameters results in the desired homogeneous film at all positions in the chamber, as determined in a step 285, then the system is adjusted for a production run. However, if the desired homogeneity is not present, the position and extent of the non-homogeneity is analyzed as part of a step 289 to readjust one or more of the three parameters for each of the target assemblies, and then test that setting again in the step 283. This is done as many times as is necessary in order to obtain the desired results.
- a curve 291 shows the results of a deposition with the left hand target rotating clockwise and the right hand target rotating counterclockwise, opposite,to the directions indicated on Figure 8.
- a curve 293, on the other hand shows the results of a deposition with the targets rotated in the directions shown on Figure 8. It can be seen that the choice of the rotation ⁇ direction discussed above with respect to Figure 8 considerably flattens out the element concentration curve.
- a perfectly flat concentration curve is the goal for obtaining a homogenous film deposition on a substrate that is moved along this deposition path beneath the targets. Such a flat curve is practically obtained by also varying the other parameters discussed above with respect to Figures 8-10, the results of Figure 11 showing the effect of rotation direction alone.
- a curve 295 shows the results by rotating tin and zinc targets at l r.p.m.
- a curve 297 shows the results when the targets were both rotated at 8 r.p.m. All other parameters were held fixed during the two experiments leading to the results of Figure 12. It can be seen that the higher speed desirably flattens out the concentration ratio curve somewhat. Indeed, it appears that the targets of the experimental set-up should be rotated at 8 r.p.m. or more as an aid to reach the goal of depositing a homogeneous film.
- the data shown in Figure 12 was obtained with the magnet angle ⁇ of the tin target at 30 degrees, and that of the zinc target at 45 degrees.
- the DC power applied to the tin target was 600 watts, and that applied to the zinc target 500 watts.
- the pressure in the deposition chamber was about 15 mTorr.
- a first rotating cylindrical target assembly 301 of Figure 13 has a single material M3 in a target 303 and an internal magnet assembly 305 directed straight downward toward the path of a moving substrate 307.
- a second target assembly 309 having a target 311 with a different single material M4 includes an internal magnet assembly 313 that is rotated 90° from the vertical to face directly against the first target assembly 301.
- the arrangement is made such that material is not sputtered directly from the target 311 onto the substrate 307. Rather, it is first sputtered onto the target 303, and then the combination of the two target materials M3 and M4 is sputtered straight downward onto the substrate 307.
- the configuration of Figure 13 maintains the target assembly 301 to sputter material directly downward to deposit the densest possible film onto the substrate below.
- the advantages of co-sputtering are maintained, however, in that the two materials M3 and M4 of the targets 303 and 311 do not need to alloyed into a single target, as was heretofore the case, but rather can be maintained in separate targets.
- a baffle or the like may be necessary in the embodiment of Figure 13 to prevent deposition of the material M4 onto the substrate directly from the target 311.
- the relative proportions of the separate target materials M3 and M4 sputtered from the target 301 is controlled primarily by controlling the rate of deposition from the target 311 onto the target 303.
- Target assemblies 315 and 317 are positioned side-by-side and contain the same material M5 on the outside surface of their targets.
- the magnets internal of the cylindrical targets are directed straight downward to a substrate 319.
- a third rotating cylindrical magnetron structure 321 is positioned above the other two and contains a different sputtering material M6 on the outside of its target from that on the target assemblies 315 and 317.
- a magnetic assembly 323 has its magnetic poles arranged so that resulting erosion zones 3£5 and 327 are positioned opposite the targets of the assemblies 315 and 317.
- the material M6 is thus sputtered off the target of the assembly 321 and onto each of the targets of the assemblies 315 and 317, to be resputtered therefrom along with material M5 on the lower-most targets.
- two targets can be employed in place of the target 321, one sputtering material onto the bottom target 315 and the other onto the bottom target 317.
- some form of baffling such as the baffle 329, may be desirable.
- the configuration of Figure 14 operates by maintaining two plasmas.
- the targets of the assemblies 315 and 317 form a first cathode and gases are introduced by conduits 316 and 317 to support its plasma.
- the target of the assembly 321 forms a second cathode and gases introduced through conduits 322 and 324 support its plasma. It will be recognized that many alternative numbers and arrangements of targets are possible to implement the cross-sputtering improvements of the present invention.
- a planar magnetron assembly 331 is utilized in place of the rotating cylindrical magnetron 321 of Figure 14. It has a planar 32 target surface 333 of material M6 and a magnetic assembly (not shown) configured to create a race track having erosion zones 337 and 339 facing respective rotating target assemblies 315 and 317 to cause particles sputtered therefrom to form a film on the cylindrical targets.
- the erosion zones 337 and 339 are preferably aligned with the axis of rotation of the respective target assemblies 315 and 315 in the view shown, and extend substantially the entire length of the cylindrical targets in a direction perpendicular to the paper.
- a plasma is supported around the planar target surface 333, forming a second cathode, by gasses introduced through conduits 341 and 343.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Analytical Chemistry (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Procédé et appareil destinés à déposer des films homogènes minces par métallisation au vide réactive à deux cibles, qui utilisent une paire de magnétrons cylindriques rotatifs entraînés par un potentiel électrique et possédant des matériaux de métallisation différents. Il en résulte une technique et un appareil qui déposent un film uniforme sur de grands substrats dynamiques ou statiques, avec des taux de déposition élevés. Un aspect de ladite métallisation au vide simultanée utilise l'orientation des structures magnétiques situées dans l'une ou les deux cibles de manière à permettre une contamination croisée des deux cibles entre elles. Dans un aspect de la métallisation au vide croisée, on utilise une ou plusieurs cibles cylindriques rotatives du même matériau sur lequel est déposé un matériau différent par métallisation au vide depuis une autre cible encore, une combinaison de deux matériaux étant déposée sur un substrat à partir de la cible cylindrique.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US671,360 | 1984-11-14 | ||
US54939290A | 1990-07-06 | 1990-07-06 | |
US549,392 | 1990-07-06 | ||
US67136091A | 1991-03-19 | 1991-03-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992001081A1 true WO1992001081A1 (fr) | 1992-01-23 |
Family
ID=27069120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1991/004738 WO1992001081A1 (fr) | 1990-07-06 | 1991-07-03 | Procede et appareil de depot de films homogenes par metallisation au vide simultanee et metallisation au vide croisee |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU8320491A (fr) |
WO (1) | WO1992001081A1 (fr) |
Cited By (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0589699A1 (fr) * | 1992-09-29 | 1994-03-30 | The Boc Group, Inc. | Dispositif et procédé de dépôt de films d'oxyde métallique |
EP0701270A1 (fr) | 1994-09-06 | 1996-03-13 | The Boc Group, Inc. | Méthodes et appareil de pulvérisation sans vide |
US5563734A (en) * | 1993-04-28 | 1996-10-08 | The Boc Group, Inc. | Durable low-emissivity solar control thin film coating |
GB2303380A (en) * | 1995-07-19 | 1997-02-19 | Teer Coatings Ltd | Improving the sputter deposition of metal-sulphur coatings |
DE19610253A1 (de) * | 1996-03-15 | 1997-10-09 | Fraunhofer Ges Forschung | Zerstäubungseinrichtung |
WO2000028104A1 (fr) * | 1998-11-06 | 2000-05-18 | Scivac | Appareil de pulverisation cathodique et procede associe de depot a vitesse elevee |
WO2001040539A3 (fr) * | 1999-12-03 | 2002-02-14 | Univ California | Procede et systeme concernant la distribution de flux et la formation de depot de films |
US6423419B1 (en) | 1995-07-19 | 2002-07-23 | Teer Coatings Limited | Molybdenum-sulphur coatings |
US6488824B1 (en) | 1998-11-06 | 2002-12-03 | Raycom Technologies, Inc. | Sputtering apparatus and process for high rate coatings |
EP1333106A1 (fr) * | 2002-02-01 | 2003-08-06 | PX Techs S.A. | Procédé et installation de dépot d'un revêtement noir sur un substrat |
WO2006038407A3 (fr) * | 2004-09-14 | 2006-06-22 | Shinmaywa Ind Ltd | Appareil de formation de films sous vide |
WO2006076345A3 (fr) * | 2005-01-13 | 2006-12-21 | Cardinal Cg Co | Chambres de pulverisation a maintenance reduite |
WO2007038368A1 (fr) * | 2005-09-23 | 2007-04-05 | Bose Corporation | Dispositif de pulverisation reactive a double magnetron avec alimentation en gaz synchronisee |
EP1775353A1 (fr) * | 2005-09-15 | 2007-04-18 | Applied Materials GmbH & Co. KG | Installation de revêtement et procédé d'opération d'une installation de revêtement |
WO2009007448A3 (fr) * | 2007-07-12 | 2009-03-19 | Materia Nova | Dispositif de co-pulvérisation à magnétron |
WO2009022184A3 (fr) * | 2007-08-15 | 2009-04-09 | Gencoa Ltd | Plasma de faible impédance |
DE102008034960A1 (de) | 2008-07-25 | 2010-01-28 | Von Ardenne Anlagentechnik Gmbh | Verfahren und Beschichtungskammer zur Beschichtung eines Substrats mit einer transparenten Metalloxid-Schicht |
DE102009032152A1 (de) | 2008-07-25 | 2010-04-15 | Von Ardenne Anlagentechnik Gmbh | Verfahren und Beschichtungskammer zur Beschichtung eines Substrats mit einer transparenten Metalloxid-Schicht |
EP2216424A1 (fr) * | 2009-02-06 | 2010-08-11 | Centre Luxembourgeois de Recherches pour le Verre et la Céramique S.A. | Techniques pour le dépôt de revêtements d'oxyde conducteurs transparents à l'aide d'appareils de pulvérisation C-MAG double |
US20120067717A1 (en) * | 2010-09-17 | 2012-03-22 | Guardian Industries Corp. | Method of co-sputtering alloys and compounds using a dual C-MAG cathode arrangement and corresponding apparatus |
WO2011129882A3 (fr) * | 2010-04-16 | 2012-04-19 | Guardian Industries Corp. | Procédé de fabrication d'article recouvert ayant un revêtement antibactérien et/ou antifongique et produit résultant |
US8182662B2 (en) | 2009-03-27 | 2012-05-22 | Sputtering Components, Inc. | Rotary cathode for magnetron sputtering apparatus |
DE102011085888A1 (de) * | 2011-11-08 | 2013-05-08 | Von Ardenne Anlagentechnik Gmbh | Beschichtungsverfahren zum Sputtern von Mischschichten und Vorrichtung zum Ausführen des Verfahrens |
DE102012203152A1 (de) * | 2012-02-29 | 2013-08-29 | Von Ardenne Anlagentechnik Gmbh | Verfahren und Vorrichtung zum reaktiven Magnetronsputtern einer transparenten Metalloxidschicht |
US20130228452A1 (en) * | 2010-11-17 | 2013-09-05 | Soleras Advanced Coatings Bvba | Soft sputtering magnetron system |
WO2013178252A1 (fr) * | 2012-05-29 | 2013-12-05 | Applied Materials, Inc. | Procédé permettant de recouvrir un substrat et dispositif d'enrobage |
US8992742B2 (en) | 2009-06-26 | 2015-03-31 | Von Ardenne Anlagentechnik Gmbh | Method for coating a substrate in a vacuum chamber having a rotating magnetron |
US20150184285A1 (en) * | 2013-12-30 | 2015-07-02 | Samsung Display Co., Ltd. | Sputtering apparatus and method thereof |
EP2553137A4 (fr) * | 2010-03-31 | 2015-10-21 | Mustang Vacuum Systems Inc | Dispositif à cathode de pulvérisation par magnétron tournant cylindrique et procédé de dépôt d'un matériau utilisant des émissions radiofréquences |
WO2015158679A1 (fr) * | 2014-04-18 | 2015-10-22 | Soleras Advanced Coatings Bvba | Système de pulvérisation pour pulvérisation uniforme |
JP2016132807A (ja) * | 2015-01-20 | 2016-07-25 | 株式会社アルバック | スパッタリング装置、薄膜製造方法 |
JP2017128813A (ja) * | 2009-10-02 | 2017-07-27 | アプライド マテリアルズ インコーポレイテッドApplied Materials,Incorporated | 基板をコーティングするための方法およびコータ |
JP2017218638A (ja) * | 2016-06-08 | 2017-12-14 | 株式会社アルバック | 成膜方法及び成膜装置 |
WO2018095514A1 (fr) * | 2016-11-22 | 2018-05-31 | Applied Materials, Inc. | Appareil et procédé de dépôt de couches sur une surface |
EP2293320B1 (fr) * | 2005-12-14 | 2018-08-15 | Cardinal CG Company | Procédé de dépôt d'un film contenant de l'étain et du niobium |
CN110144558A (zh) * | 2019-04-29 | 2019-08-20 | 河南东微电子材料有限公司 | 一种磁控溅射镀膜设备 |
CN112813399A (zh) * | 2021-02-04 | 2021-05-18 | 郑州大学 | 一种高熵金属玻璃防护涂层及制备方法 |
CN112831751A (zh) * | 2021-02-04 | 2021-05-25 | 郑州大学 | 一种高温自转变非晶/纳米晶高熵氧化物薄膜、制备方法及应用 |
US20230085216A1 (en) * | 2021-09-13 | 2023-03-16 | Samsung Display Co., Ltd. | Sputtering apparatus and method for thin film electrode deposition |
US20230097276A1 (en) * | 2020-03-13 | 2023-03-30 | Evatec Ag | Apparatus and process with a dc-pulsed cathode array |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2765222C1 (ru) * | 2020-12-30 | 2022-01-26 | Тхе Баттериес Сп. з о.о. | Способ формирования пленки LiCoO2 и устройство для его реализации |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4166783A (en) * | 1978-04-17 | 1979-09-04 | Varian Associates, Inc. | Deposition rate regulation by computer control of sputtering systems |
US4466877A (en) * | 1983-10-11 | 1984-08-21 | Shatterproof Glass Corporation | Magnetron cathode sputtering apparatus |
US4595482A (en) * | 1984-05-17 | 1986-06-17 | Varian Associates, Inc. | Apparatus for and the method of controlling magnetron sputter device having separate confining magnetic fields to separate targets subject to separate discharges |
US4885070A (en) * | 1988-02-12 | 1989-12-05 | Leybold Aktiengesellschaft | Method and apparatus for the application of materials |
-
1991
- 1991-07-03 AU AU83204/91A patent/AU8320491A/en not_active Abandoned
- 1991-07-03 WO PCT/US1991/004738 patent/WO1992001081A1/fr unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4166783A (en) * | 1978-04-17 | 1979-09-04 | Varian Associates, Inc. | Deposition rate regulation by computer control of sputtering systems |
US4466877A (en) * | 1983-10-11 | 1984-08-21 | Shatterproof Glass Corporation | Magnetron cathode sputtering apparatus |
US4595482A (en) * | 1984-05-17 | 1986-06-17 | Varian Associates, Inc. | Apparatus for and the method of controlling magnetron sputter device having separate confining magnetic fields to separate targets subject to separate discharges |
US4885070A (en) * | 1988-02-12 | 1989-12-05 | Leybold Aktiengesellschaft | Method and apparatus for the application of materials |
Non-Patent Citations (1)
Title |
---|
J. HANAK, "Co-sputtering-Its limitations and possibilities", LE VIDE, No. 175, 1975, p. 11-18. * |
Cited By (61)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0589699A1 (fr) * | 1992-09-29 | 1994-03-30 | The Boc Group, Inc. | Dispositif et procédé de dépôt de films d'oxyde métallique |
US5563734A (en) * | 1993-04-28 | 1996-10-08 | The Boc Group, Inc. | Durable low-emissivity solar control thin film coating |
EP0701270A1 (fr) | 1994-09-06 | 1996-03-13 | The Boc Group, Inc. | Méthodes et appareil de pulvérisation sans vide |
US5645699A (en) * | 1994-09-06 | 1997-07-08 | The Boc Group, Inc. | Dual cylindrical target magnetron with multiple anodes |
US6423419B1 (en) | 1995-07-19 | 2002-07-23 | Teer Coatings Limited | Molybdenum-sulphur coatings |
GB2303380A (en) * | 1995-07-19 | 1997-02-19 | Teer Coatings Ltd | Improving the sputter deposition of metal-sulphur coatings |
GB2303380B (en) * | 1995-07-19 | 1999-06-30 | Teer Coatings Ltd | Metal-sulphur coatings |
DE19610253A1 (de) * | 1996-03-15 | 1997-10-09 | Fraunhofer Ges Forschung | Zerstäubungseinrichtung |
DE19610253C2 (de) * | 1996-03-15 | 1999-01-14 | Fraunhofer Ges Forschung | Zerstäubungseinrichtung |
WO2000028104A1 (fr) * | 1998-11-06 | 2000-05-18 | Scivac | Appareil de pulverisation cathodique et procede associe de depot a vitesse elevee |
US6365010B1 (en) * | 1998-11-06 | 2002-04-02 | Scivac | Sputtering apparatus and process for high rate coatings |
JP2002529600A (ja) * | 1998-11-06 | 2002-09-10 | シヴァク | 高レート・コーティング用のスパッタリング装置および方法 |
US6488824B1 (en) | 1998-11-06 | 2002-12-03 | Raycom Technologies, Inc. | Sputtering apparatus and process for high rate coatings |
WO2001040539A3 (fr) * | 1999-12-03 | 2002-02-14 | Univ California | Procede et systeme concernant la distribution de flux et la formation de depot de films |
EP1333106A1 (fr) * | 2002-02-01 | 2003-08-06 | PX Techs S.A. | Procédé et installation de dépot d'un revêtement noir sur un substrat |
WO2003064719A1 (fr) * | 2002-02-01 | 2003-08-07 | Px Tech S.A. | Procede et installation de depot sous vide d'un revetement noir |
WO2006038407A3 (fr) * | 2004-09-14 | 2006-06-22 | Shinmaywa Ind Ltd | Appareil de formation de films sous vide |
WO2006076345A3 (fr) * | 2005-01-13 | 2006-12-21 | Cardinal Cg Co | Chambres de pulverisation a maintenance reduite |
EP1775353A1 (fr) * | 2005-09-15 | 2007-04-18 | Applied Materials GmbH & Co. KG | Installation de revêtement et procédé d'opération d'une installation de revêtement |
WO2007038368A1 (fr) * | 2005-09-23 | 2007-04-05 | Bose Corporation | Dispositif de pulverisation reactive a double magnetron avec alimentation en gaz synchronisee |
EP2293320B1 (fr) * | 2005-12-14 | 2018-08-15 | Cardinal CG Company | Procédé de dépôt d'un film contenant de l'étain et du niobium |
WO2009007448A3 (fr) * | 2007-07-12 | 2009-03-19 | Materia Nova | Dispositif de co-pulvérisation à magnétron |
CN101874283B (zh) * | 2007-08-15 | 2013-07-10 | 基恩科有限公司 | 低阻抗等离子体 |
WO2009022184A3 (fr) * | 2007-08-15 | 2009-04-09 | Gencoa Ltd | Plasma de faible impédance |
US9028660B2 (en) | 2007-08-15 | 2015-05-12 | Gencoa Ltd | Low impedance plasma |
CN101874283A (zh) * | 2007-08-15 | 2010-10-27 | 基恩科有限公司 | 低阻抗等离子体 |
JP2010537041A (ja) * | 2007-08-15 | 2010-12-02 | ジェンコア リミテッド | 低インピーダンスプラズマ |
DE102008034960A1 (de) | 2008-07-25 | 2010-01-28 | Von Ardenne Anlagentechnik Gmbh | Verfahren und Beschichtungskammer zur Beschichtung eines Substrats mit einer transparenten Metalloxid-Schicht |
DE102009032152A1 (de) | 2008-07-25 | 2010-04-15 | Von Ardenne Anlagentechnik Gmbh | Verfahren und Beschichtungskammer zur Beschichtung eines Substrats mit einer transparenten Metalloxid-Schicht |
EP2216424A1 (fr) * | 2009-02-06 | 2010-08-11 | Centre Luxembourgeois de Recherches pour le Verre et la Céramique S.A. | Techniques pour le dépôt de revêtements d'oxyde conducteurs transparents à l'aide d'appareils de pulvérisation C-MAG double |
EP3293282A1 (fr) * | 2009-02-06 | 2018-03-14 | Guardian Europe S.à.r.l. | Techniques pour le dépôt de revêtements d'oxyde conducteurs transparents à l'aide d'appareils de pulvérisation c-mag double |
US20100200395A1 (en) * | 2009-02-06 | 2010-08-12 | Anton Dietrich | Techniques for depositing transparent conductive oxide coatings using dual C-MAG sputter apparatuses |
US8182662B2 (en) | 2009-03-27 | 2012-05-22 | Sputtering Components, Inc. | Rotary cathode for magnetron sputtering apparatus |
US8992742B2 (en) | 2009-06-26 | 2015-03-31 | Von Ardenne Anlagentechnik Gmbh | Method for coating a substrate in a vacuum chamber having a rotating magnetron |
JP2017128813A (ja) * | 2009-10-02 | 2017-07-27 | アプライド マテリアルズ インコーポレイテッドApplied Materials,Incorporated | 基板をコーティングするための方法およびコータ |
EP2553137A4 (fr) * | 2010-03-31 | 2015-10-21 | Mustang Vacuum Systems Inc | Dispositif à cathode de pulvérisation par magnétron tournant cylindrique et procédé de dépôt d'un matériau utilisant des émissions radiofréquences |
WO2011129882A3 (fr) * | 2010-04-16 | 2012-04-19 | Guardian Industries Corp. | Procédé de fabrication d'article recouvert ayant un revêtement antibactérien et/ou antifongique et produit résultant |
US20120067717A1 (en) * | 2010-09-17 | 2012-03-22 | Guardian Industries Corp. | Method of co-sputtering alloys and compounds using a dual C-MAG cathode arrangement and corresponding apparatus |
WO2012036718A1 (fr) * | 2010-09-17 | 2012-03-22 | Centre Luxembourgeois De Recherches Pour Le Verre Et La Ceramique S.A. (C.R.V.C) | Procédé amélioré de co-pulvérisation cathodique d'alliages et de composés à l'aide d'agencement de cathode c-mag double et appareil correspondant |
US20130228452A1 (en) * | 2010-11-17 | 2013-09-05 | Soleras Advanced Coatings Bvba | Soft sputtering magnetron system |
US9394603B2 (en) * | 2010-11-17 | 2016-07-19 | Soleras Advanced Coatings Bvba | Soft sputtering magnetron system |
DE102011085888A1 (de) * | 2011-11-08 | 2013-05-08 | Von Ardenne Anlagentechnik Gmbh | Beschichtungsverfahren zum Sputtern von Mischschichten und Vorrichtung zum Ausführen des Verfahrens |
DE102012203152A1 (de) * | 2012-02-29 | 2013-08-29 | Von Ardenne Anlagentechnik Gmbh | Verfahren und Vorrichtung zum reaktiven Magnetronsputtern einer transparenten Metalloxidschicht |
TWI595106B (zh) * | 2012-05-29 | 2017-08-11 | 應用材料股份有限公司 | 用於塗佈一基板之方法及塗佈機 |
WO2013178252A1 (fr) * | 2012-05-29 | 2013-12-05 | Applied Materials, Inc. | Procédé permettant de recouvrir un substrat et dispositif d'enrobage |
JP2015524022A (ja) * | 2012-05-29 | 2015-08-20 | アプライド マテリアルズ インコーポレイテッドApplied Materials,Incorporated | 基板をコーティングするための方法とコーター |
CN104350173A (zh) * | 2012-05-29 | 2015-02-11 | 应用材料公司 | 用于涂布基板的方法及涂布机 |
US20150184285A1 (en) * | 2013-12-30 | 2015-07-02 | Samsung Display Co., Ltd. | Sputtering apparatus and method thereof |
WO2015158679A1 (fr) * | 2014-04-18 | 2015-10-22 | Soleras Advanced Coatings Bvba | Système de pulvérisation pour pulvérisation uniforme |
BE1021296B1 (nl) * | 2014-04-18 | 2015-10-23 | Soleras Advanced Coatings Bvba | Sputter systeem voor uniform sputteren |
JP2016132807A (ja) * | 2015-01-20 | 2016-07-25 | 株式会社アルバック | スパッタリング装置、薄膜製造方法 |
JP2017218638A (ja) * | 2016-06-08 | 2017-12-14 | 株式会社アルバック | 成膜方法及び成膜装置 |
WO2018095514A1 (fr) * | 2016-11-22 | 2018-05-31 | Applied Materials, Inc. | Appareil et procédé de dépôt de couches sur une surface |
CN109983150A (zh) * | 2016-11-22 | 2019-07-05 | 应用材料公司 | 用于在基板上沉积层的设备和方法 |
CN109983150B (zh) * | 2016-11-22 | 2022-04-26 | 应用材料公司 | 用于在基板上沉积层的设备和方法 |
CN110144558A (zh) * | 2019-04-29 | 2019-08-20 | 河南东微电子材料有限公司 | 一种磁控溅射镀膜设备 |
CN110144558B (zh) * | 2019-04-29 | 2021-06-11 | 河南东微电子材料有限公司 | 一种磁控溅射镀膜设备 |
US20230097276A1 (en) * | 2020-03-13 | 2023-03-30 | Evatec Ag | Apparatus and process with a dc-pulsed cathode array |
CN112813399A (zh) * | 2021-02-04 | 2021-05-18 | 郑州大学 | 一种高熵金属玻璃防护涂层及制备方法 |
CN112831751A (zh) * | 2021-02-04 | 2021-05-25 | 郑州大学 | 一种高温自转变非晶/纳米晶高熵氧化物薄膜、制备方法及应用 |
US20230085216A1 (en) * | 2021-09-13 | 2023-03-16 | Samsung Display Co., Ltd. | Sputtering apparatus and method for thin film electrode deposition |
Also Published As
Publication number | Publication date |
---|---|
AU8320491A (en) | 1992-02-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO1992001081A1 (fr) | Procede et appareil de depot de films homogenes par metallisation au vide simultanee et metallisation au vide croisee | |
EP2640865B1 (fr) | Système de magnétron de pulvérisation cathodique douce | |
US5616225A (en) | Use of multiple anodes in a magnetron for improving the uniformity of its plasma | |
EP0502068B1 (fr) | Procede de revetment de substrats avec des composes a base de silicium | |
US5384021A (en) | Sputtering apparatus | |
US6365010B1 (en) | Sputtering apparatus and process for high rate coatings | |
US6113752A (en) | Method and device for coating substrate | |
US5213672A (en) | Sputtering apparatus with a rotating target | |
US9530629B2 (en) | Method for depositing multilayer coatings | |
EP2616566B1 (fr) | Procédé amélioré de co-pulvérisation cathodique d'alliages et de composés à l'aide d'agencement de cathode c-mag double et appareil correspondant | |
US11674213B2 (en) | Sputtering apparatus including gas distribution system | |
EP1943370B1 (fr) | Processus et equipement de depot par projection reactive | |
US20080296142A1 (en) | Swinging magnets to improve target utilization | |
JP2005281851A (ja) | 反応スパッタリング用デバイス | |
WO2012066080A1 (fr) | Appareil et procédé de pulvérisation cathodique | |
WO2002070776A1 (fr) | Procede de depot | |
JP3439993B2 (ja) | マグネトロンスパッタ装置 | |
JP3544907B2 (ja) | マグネトロンスパッタ装置 | |
Musil et al. | Formation of Ti1–x Si x and Ti1–x Si x N films by magnetron co-sputtering | |
US20080023319A1 (en) | Magnetron assembly |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU BB BG BR CA FI HU JP KP KR LK MC MG MW NO PL RO SD SU US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE BF BJ CF CG CH CI CM DE DK ES FR GA GB GN GR IT LU ML MR NL SE SN TD TG |
|
NENP | Non-entry into the national phase |
Ref country code: CA |