KR20050018976A - 연마제 - Google Patents
연마제Info
- Publication number
- KR20050018976A KR20050018976A KR10-2005-7000457A KR20057000457A KR20050018976A KR 20050018976 A KR20050018976 A KR 20050018976A KR 20057000457 A KR20057000457 A KR 20057000457A KR 20050018976 A KR20050018976 A KR 20050018976A
- Authority
- KR
- South Korea
- Prior art keywords
- cerium oxide
- abrasive
- polishing
- oxide particles
- abrasive according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002245 particle Substances 0.000 claims abstract description 250
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 152
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 152
- 238000005498 polishing Methods 0.000 claims abstract description 111
- 239000000758 substrate Substances 0.000 claims abstract description 46
- 239000002002 slurry Substances 0.000 claims abstract description 33
- 239000011148 porous material Substances 0.000 claims abstract description 14
- 239000006061 abrasive grain Substances 0.000 claims abstract description 8
- 239000013078 crystal Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000000227 grinding Methods 0.000 claims description 17
- 239000002270 dispersing agent Substances 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 229920002125 Sokalan® Polymers 0.000 claims description 5
- 238000003991 Rietveld refinement Methods 0.000 claims description 4
- 239000003945 anionic surfactant Substances 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 3
- 239000002736 nonionic surfactant Substances 0.000 claims description 3
- 229920000620 organic polymer Polymers 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 abstract description 30
- 239000004065 semiconductor Substances 0.000 abstract description 25
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 4
- 238000007517 polishing process Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 31
- 239000003082 abrasive agent Substances 0.000 description 20
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 14
- 238000002360 preparation method Methods 0.000 description 14
- 238000010298 pulverizing process Methods 0.000 description 12
- 235000012431 wafers Nutrition 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 238000009826 distribution Methods 0.000 description 11
- 230000003287 optical effect Effects 0.000 description 11
- 239000008367 deionised water Substances 0.000 description 8
- 229910021641 deionized water Inorganic materials 0.000 description 8
- 239000011521 glass Substances 0.000 description 8
- 229910052697 platinum Inorganic materials 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 6
- 238000002441 X-ray diffraction Methods 0.000 description 6
- KHSBAWXKALEJFR-UHFFFAOYSA-H cerium(3+);tricarbonate;hydrate Chemical compound O.[Ce+3].[Ce+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O KHSBAWXKALEJFR-UHFFFAOYSA-H 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- 238000007561 laser diffraction method Methods 0.000 description 5
- -1 polyoxyethylene lauryl ether ammonium sulfate Polymers 0.000 description 5
- WPKYZIPODULRBM-UHFFFAOYSA-N azane;prop-2-enoic acid Chemical class N.OC(=O)C=C WPKYZIPODULRBM-UHFFFAOYSA-N 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000011802 pulverized particle Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 150000001785 cerium compounds Chemical class 0.000 description 2
- 239000008119 colloidal silica Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000002178 crystalline material Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 239000005304 optical glass Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000011164 primary particle Substances 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 238000004626 scanning electron microscopy Methods 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 description 1
- RFVNOJDQRGSOEL-UHFFFAOYSA-N 2-hydroxyethyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCCO RFVNOJDQRGSOEL-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 241000403354 Microplus Species 0.000 description 1
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- BTBJBAZGXNKLQC-UHFFFAOYSA-N ammonium lauryl sulfate Chemical compound [NH4+].CCCCCCCCCCCCOS([O-])(=O)=O BTBJBAZGXNKLQC-UHFFFAOYSA-N 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- GHLITDDQOMIBFS-UHFFFAOYSA-H cerium(3+);tricarbonate Chemical compound [Ce+3].[Ce+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O GHLITDDQOMIBFS-UHFFFAOYSA-H 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical group Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1409—Abrasive particles per se
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1454—Abrasive powders, suspensions and pastes for polishing
- C09K3/1463—Aqueous liquid suspensions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Description
Claims (24)
- 2개 이상의 결정자로 구성되어 결정 입계를 갖는 산화세륨 입자를 매체에 분산시킨 슬러리를 포함하고, 상기 결정 입계를 갖는 산화세륨 입자의 입자경의 최대 입경이 3000 nm 이하인 연마제.
- 기공을 갖는 지립을 매체에 분산시킨 슬러리를 포함하고, 상기 기공을 갖는 지립 입경의 최대 입경이 3000 nm 이하인 연마제.
- 부피 밀도가 6.5 g/㎤ 이하인 산화세륨 입자를 매체에 분산시킨 슬러리를 포함하고, 상기 산화세륨 입자의 입자경의 최대 입경이 3000 nm 이하인 연마제.
- 제1항 또는 제3항에 있어서, 상기 산화세륨 입자의 입자경의 중앙값이 100 내지 1200 nm인 연마제.
- 제1항 또는 제3항에 있어서, 상기 산화세륨 입자의 입자경의 중앙값이 300 내지 1000 nm인 연마제.
- 제1항 또는 제3항에 있어서, 상기 결정자 입경의 중앙값이 5 내지 250 nm인 연마제.
- 제1항 또는 제3항에 있어서, 상기 결정자 입경의 중앙값이 5 내지 150 nm인 연마제.
- 제5항에 있어서, 상기 결정자 입경의 중앙값이 10 내지 50 nm인 연마제.
- 제5항에 있어서, 상기 결정자 입경의 중앙값이 50 내지 200 nm인 연마제.
- 제1항 또는 제3항에 있어서, 상기 결정자의 최대 입경이 600 nm 이하인 산화세륨 연마제.
- 제2항에 있어서, 피크노미터를 사용하여 측정한 진밀도와 X선 리트벨트 분석으로 구한 이론 밀도의 비로부터 구한 상기 지립의 기공률이 10 내지 30 %인 연마제.
- 제2항 또는 제11항에 있어서, B.J.H. (Barret, Joyner, Halende)법에 의해 측정한 상기 지립의 세공 용적이 0.02 내지 0.05 ㎤/g인 연마제.
- 제2항 또는 제11항에 있어서, 상기 지립이 산화세륨 입자인 연마제.
- 제12항에 있어서, 상기 지립이 산화세륨 입자인 연마제.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 매체가 물인 연마제.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 슬러리가 분산제를 포함하는 것인 연마제.
- 제16항에 있어서, 상기 분산제가 수용성 유기 고분자, 수용성 음이온계 계면활성제, 수용성 비이온계 계면활성제 및 수용성 아민으로부터 선택되는 1종 이상인 연마제.
- 제17항에 있어서, 상기 분산제가 폴리아크릴산계 중합체인 연마제.
- 제1항에 있어서, 입경 1 ㎛ 이상의 산화세륨 입자가 산화세륨 입자 전체량의 0.1 중량% 이상을 차지하고, 상기 결정 입계를 갖는 산화세륨 입자는 붕괴되면서 연마하는 성질을 갖는 것인 연마제.
- 제1항에 있어서, 상기 결정 입계를 갖는 산화세륨 입자가 매체와 접촉하지 않은 새로운 면을 생성하면서 연마하는 성질을 갖는 것인 연마제.
- 제1항에 있어서, 소정의 기판을 연마한 후, 원심 침강법에 의해 측정한 입경 0.5 ㎛ 이상의 산화세륨 입자 함유량의 비율이 연마전 상기 함유량에 대하여 0.8 이하인 연마제.
- 제1항에 있어서, 소정의 기판을 연마한 후, 레이저 회절법에 의해 측정한 D 99 체적%의 산화세륨 입자경의 비율이 연마전 상기 입자경에 대하여 0.4 이상 0.9 이하인 연마제.
- 제1항에 있어서, 소정의 기판을 연마한 후, 레이저 회절법에 의해 측정한 D 90 체적%의 산화세륨 입자경의 비율이 연마전 상기 입자경에 대하여 0.7 이상 0.95 이하가 되는 연마제.
- 제1항 내지 제3항 중 어느 한 항에 기재된 연마제를 이용하여 소정의 기판을 연마하는 기판의 연마법.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34924097A JPH11181403A (ja) | 1997-12-18 | 1997-12-18 | 酸化セリウム研磨剤及び基板の研磨法 |
| JPJP-P-1997-00349240 | 1997-12-18 | ||
| JP8304398 | 1998-03-30 | ||
| JP8304298 | 1998-03-30 | ||
| JPJP-P-1998-00083043 | 1998-03-30 | ||
| JPJP-P-1998-00083042 | 1998-03-30 | ||
| PCT/JP1998/005736 WO1999031195A1 (fr) | 1997-12-18 | 1998-12-18 | Abrasif, procede de polissage de tranche, et procede de production d'un dispositif a semi-conducteur |
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| KR (10) | KR100695857B1 (ko) |
| CN (4) | CN1321166C (ko) |
| AU (1) | AU1683899A (ko) |
| CA (2) | CA2315057A1 (ko) |
| SG (1) | SG128425A1 (ko) |
| TW (3) | TWI272300B (ko) |
| WO (1) | WO1999031195A1 (ko) |
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