KR102616489B1 - 반도체 장치 제조 방법 - Google Patents
반도체 장치 제조 방법 Download PDFInfo
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- KR102616489B1 KR102616489B1 KR1020160131088A KR20160131088A KR102616489B1 KR 102616489 B1 KR102616489 B1 KR 102616489B1 KR 1020160131088 A KR1020160131088 A KR 1020160131088A KR 20160131088 A KR20160131088 A KR 20160131088A KR 102616489 B1 KR102616489 B1 KR 102616489B1
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- South Korea
- Prior art keywords
- interlayer insulating
- insulating film
- region
- treatment process
- metal
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- 238000000034 method Methods 0.000 title claims abstract description 134
- 239000004065 semiconductor Substances 0.000 title claims abstract description 44
- 239000011229 interlayer Substances 0.000 claims abstract description 206
- 229910052751 metal Inorganic materials 0.000 claims abstract description 191
- 239000002184 metal Substances 0.000 claims abstract description 191
- 230000008569 process Effects 0.000 claims abstract description 126
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- 239000010410 layer Substances 0.000 claims abstract description 78
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 35
- 238000011084 recovery Methods 0.000 claims abstract description 31
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 12
- 238000011065 in-situ storage Methods 0.000 claims abstract description 8
- 229910044991 metal oxide Inorganic materials 0.000 claims description 47
- 150000004706 metal oxides Chemical class 0.000 claims description 47
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- 239000010703 silicon Substances 0.000 claims description 29
- 230000002265 prevention Effects 0.000 claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 19
- 229910052799 carbon Inorganic materials 0.000 claims description 19
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
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- 230000004888 barrier function Effects 0.000 description 34
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- 239000007789 gas Substances 0.000 description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 13
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- 238000010586 diagram Methods 0.000 description 12
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 12
- 239000010949 copper Substances 0.000 description 10
- 239000010936 titanium Substances 0.000 description 10
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- 229910052721 tungsten Inorganic materials 0.000 description 7
- 239000010937 tungsten Substances 0.000 description 7
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- CFJRGWXELQQLSA-UHFFFAOYSA-N azanylidyneniobium Chemical compound [Nb]#N CFJRGWXELQQLSA-UHFFFAOYSA-N 0.000 description 3
- SKKMWRVAJNPLFY-UHFFFAOYSA-N azanylidynevanadium Chemical compound [V]#N SKKMWRVAJNPLFY-UHFFFAOYSA-N 0.000 description 3
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- 238000005137 deposition process Methods 0.000 description 3
- 229910052758 niobium Inorganic materials 0.000 description 3
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 3
- ZVWKZXLXHLZXLS-UHFFFAOYSA-N zirconium nitride Chemical compound [Zr]#N ZVWKZXLXHLZXLS-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 description 2
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- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229920003209 poly(hydridosilsesquioxane) Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
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- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 2
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- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000004528 spin coating Methods 0.000 description 2
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- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004965 Silica aerogel Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical class CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- IVHJCRXBQPGLOV-UHFFFAOYSA-N azanylidynetungsten Chemical compound [W]#N IVHJCRXBQPGLOV-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
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- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- 238000009713 electroplating Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
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- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- 230000010354 integration Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 description 1
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- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
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- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- IIVDETMOCZWPPU-UHFFFAOYSA-N trimethylsilyloxyboronic acid Chemical compound C[Si](C)(C)OB(O)O IIVDETMOCZWPPU-UHFFFAOYSA-N 0.000 description 1
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- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/02227—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process
- H01L21/02252—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by plasma treatment, e.g. plasma oxidation of the substrate
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- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76822—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc.
- H01L21/76826—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc. by contacting the layer with gases, liquids or plasmas
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02172—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides
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- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/02274—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition in the presence of a plasma [PECVD]
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- H01L21/7682—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing the dielectric comprising air gaps
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- H01L21/76829—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers
- H01L21/76834—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers formation of thin insulating films on the sidewalls or on top of conductors
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- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
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- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76843—Barrier, adhesion or liner layers formed in openings in a dielectric
- H01L21/76849—Barrier, adhesion or liner layers formed in openings in a dielectric the layer being positioned on top of the main fill metal
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76853—Barrier, adhesion or liner layers characterized by particular after-treatment steps
- H01L21/76855—After-treatment introducing at least one additional element into the layer
- H01L21/76856—After-treatment introducing at least one additional element into the layer by treatment in plasmas or gaseous environments, e.g. nitriding a refractory metal liner
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- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
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- H01L21/76886—Modifying permanently or temporarily the pattern or the conductivity of conductive members, e.g. formation of alloys, reduction of contact resistances
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- H01L21/76829—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers
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Abstract
Description
도 9는 본 발명의 몇몇 실시예들에 따른 반도체 장치 제조 방법을 설명하기 위한 중간단계 도면이다.
도 10 내지 도 17은 본 발명의 몇몇 실시예들에 따른 반도체 장치 제조 방법을 설명하기 위한 중간단계 도면들이다.
도 18 내지 도 22는 본 발명의 몇몇 실시예들에 따른 반도체 장치 제조 방법을 설명하기 위한 중간단계 도면들이다.
도 23 내지 도 25는 본 발명의 몇몇 실시예들에 따른 반도체 장치 제조 방법을 설명하기 위한 중간단계 도면들이다.
100: 기판 120, 220: 하부 층간 절연막
120dr, 220dr: 손상 영역 120rr, 220rr: 손상에서 회복된 영역
130, 230-1, 230-2: 금속 배선 140, 240: 상부 식각 방지막
135, 235-1, 235-2: 층간 배선 구조체
Claims (10)
- 기판 상에, 트렌치를 포함하는 제1 층간 절연막을 형성하고,
상기 트렌치의 적어도 일부를 금속 배선 영역으로 채우고,
제1 표면 처리 공정에서, 상기 금속 배선 영역의 표면과 상기 제1 층간 절연막의 표면을 플라즈마에 노출시키고,
이어서 제2 표면 처리 공정에서, 상기 제1 층간 절연막의 표면을 메틸기(-CH3)를 포함하는 회복(recovery) 가스에 노출시키고,
이어서, 상기 금속 배선 영역 및 상기 제1 층간 절연막 상에, 식각 방지막을 형성하는 것을 포함하되,
상기 제1 표면 처리 공정은,
실레인을 포함하는 가스를 이용하여, 상기 금속 배선 영역의 표면에 실리콘을 흡착시키고,
상기 금속 배선 영역의 표면의 금속 산화물을 환원하는 것을 포함하고,
상기 제1 층간 절연막은 상기 제1 층간 절연막의 상면을 포함하는 회복 영역과, 상기 회복 영역의 하부에 위치하는 손상 영역을 포함하고,
상기 손상 영역의 탄소 농도는 상기 회복 영역의 탄소 농도보다 작은 반도체 장치 제조 방법. - 제1 항에 있어서,
상기 제1 표면 처리 공정, 상기 제2 표면 처리 공정 및 상기 식각 방지막을 형성하는 것은 인시츄(in-situ)로 진행되는 반도체 장치 제조 방법. - 삭제
- 제1 항에 있어서,
상기 금속 배선 영역을 형성하는 것은 상기 트렌치 내에 금속 패턴을 형성하고, 상기 금속 패턴의 상면을 따라 연장되는 캡핑 도전 패턴을 형성하는 것을 포함하고,
상기 제1 표면 처리 공정은 상기 캡핑 도전 패턴의 표면을 처리하는 반도체 장치 제조 방법. - 제1 항에 있어서,
상기 제1 층간 절연막은 제1 영역과 제2 영역을 포함하고,
상기 금속 배선 영역은 상기 제1 영역 및 제2 영역의 상기 제1 층간 절연막 내에 있는 복수의 금속 배선 영역을 포함하고,
상기 제2 영역 상에, 마스크 패턴을 형성하고,
상기 마스크 패턴을 이용하여, 상기 제1 영역의 상기 제1 층간 절연막의 일부를 제거한 후, 상기 제1 층간 절연막 상에 제2 층간 절연막을 형성하는 것을 더 포함하는 반도체 장치 제조 방법. - 제5 항에 있어서,
상기 제2 층간 절연막을 형성하는 것은 상기 제1 영역의 상기 복수의 금속 배선 영역 중 어느 하나 사이에 에어갭을 형성하는 것을 포함하는 반도체 장치 제조 방법. - 제1 항에 있어서,
상기 제1 층간 절연막은 제1 영역과 제2 영역을 포함하고,
상기 금속 배선 영역은 상기 제1 영역 및 제2 영역의 상기 제1 층간 절연막 내에 있는 복수의 금속 배선 영역을 포함하고,
상기 제1 표면 처리 공정 전에, 상기 제2 영역의 상기 제1 층간 절연막 상에, 마스크 패턴을 형성하고,
상기 마스크 패턴을 이용하여, 상기 제1 영역의 상기 제1 층간 절연막의 일부를 제거하는 것을 더 포함하는 반도체 장치 제조 방법. - 기판 상에, 금속 배선 영역과 제1 층간 절연막을 포함하고, 상기 금속 배선 영역의 상면이 노출되는 층간 배선 구조체를 형성하고,
플라즈마를 이용한 제1 표면 처리 공정을 통해, 노출된 상기 금속 배선 영역의 상면에 실리콘을 흡착시켜 상기 금속 배선 영역의 표면의 금속 산화물을 환원 처리하고 상기 제1 층간 절연막의 표면을 손상시키고,
메틸기(-CH3)를 포함하는 회복 가스와 플라즈마를 이용한 제2 표면 처리 공정을 통해, 손상된 상기 제1 층간 절연막의 표면을 처리하고,
상기 제1 및 상기 제2 표면 처리 공정 후, 상기 층간 배선 구조체 상에 식각 방지막을 형성하는 것을 포함하고,
상기 금속 배선 영역은 상기 제1 층간 절연막 내에 형성된 금속 패턴과, 상기 금속 패턴의 상면을 따라 연장되는 캡핑 도전 패턴을 포함하고,
상기 제1 표면처리 공정은 상기 캡핑 도전 패턴의 표면을 처리하는 반도체 장치 제조 방법. - 제8 항에 있어서,
상기 제1 표면 처리 공정 및 상기 제2 표면 처리 공정은 챔버 내에서 연속적으로 진행되는 반도체 장치 제조 방법. - 제8 항에 있어서,
상기 제1 층간 절연막은 제1 영역 및 제2 영역을 포함하고,
상기 제1 영역의 제1 층간 절연막의 일부를 제거하여, 상기 층간 배선 구조체 내에 리세스를 형성하고,
상기 층간 배선 구조체 상에 제2 층간 절연막을 형성하는 것을 더 포함하고,
상기 층간 배선 구조체 내에 상기 리세스에 대응되는 위치에 에어갭이 형성되는 반도체 장치 제조 방법.
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