KR100816698B1 - 다공성 sog 필름의 제조방법 - Google Patents
다공성 sog 필름의 제조방법 Download PDFInfo
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- KR100816698B1 KR100816698B1 KR1020017015575A KR20017015575A KR100816698B1 KR 100816698 B1 KR100816698 B1 KR 100816698B1 KR 1020017015575 A KR1020017015575 A KR 1020017015575A KR 20017015575 A KR20017015575 A KR 20017015575A KR 100816698 B1 KR100816698 B1 KR 100816698B1
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- 238000000034 method Methods 0.000 title claims abstract description 90
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 126
- 239000004094 surface-active agent Substances 0.000 claims abstract description 60
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910000077 silane Inorganic materials 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 239000004065 semiconductor Substances 0.000 claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 19
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims abstract description 12
- -1 TEOS and TMOS Chemical compound 0.000 claims abstract description 10
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003093 cationic surfactant Substances 0.000 claims abstract description 7
- 125000005211 alkyl trimethyl ammonium group Chemical group 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 4
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- 239000001301 oxygen Substances 0.000 claims description 29
- 229910052760 oxygen Inorganic materials 0.000 claims description 29
- 238000011282 treatment Methods 0.000 claims description 29
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 28
- 238000009832 plasma treatment Methods 0.000 claims description 19
- 239000002253 acid Substances 0.000 claims description 11
- 239000003513 alkali Substances 0.000 claims description 11
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 11
- 239000011247 coating layer Substances 0.000 claims description 10
- 238000010894 electron beam technology Methods 0.000 claims description 10
- 238000004528 spin coating Methods 0.000 claims description 8
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical group [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 claims description 7
- 150000001282 organosilanes Chemical class 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 7
- 238000004544 sputter deposition Methods 0.000 claims description 7
- 150000007513 acids Chemical class 0.000 claims description 6
- 150000001298 alcohols Chemical class 0.000 claims description 5
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 2
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 claims description 2
- 229940115457 cetyldimethylethylammonium bromide Drugs 0.000 claims description 2
- WSPPHMXAIHWZAH-UHFFFAOYSA-M ethyl-dimethyl-octadecylazanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CC WSPPHMXAIHWZAH-UHFFFAOYSA-M 0.000 claims description 2
- VUFOSBDICLTFMS-UHFFFAOYSA-M ethyl-hexadecyl-dimethylazanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)CC VUFOSBDICLTFMS-UHFFFAOYSA-M 0.000 claims description 2
- KXHPPCXNWTUNSB-UHFFFAOYSA-M benzyl(trimethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CC1=CC=CC=C1 KXHPPCXNWTUNSB-UHFFFAOYSA-M 0.000 claims 1
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- 229910052782 aluminium Inorganic materials 0.000 description 19
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- 125000001165 hydrophobic group Chemical group 0.000 description 8
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- 238000005903 acid hydrolysis reaction Methods 0.000 description 6
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- 150000004756 silanes Chemical class 0.000 description 6
- 238000006884 silylation reaction Methods 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 150000004703 alkoxides Chemical class 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 229920001721 polyimide Polymers 0.000 description 5
- 238000001878 scanning electron micrograph Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 4
- 229910001882 dioxygen Inorganic materials 0.000 description 4
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- 238000001000 micrograph Methods 0.000 description 4
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- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011221 initial treatment Methods 0.000 description 2
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- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
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- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 238000001157 Fourier transform infrared spectrum Methods 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- TTZLKXKJIMOHHG-UHFFFAOYSA-M benzyl-decyl-dimethylazanium;chloride Chemical compound [Cl-].CCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 TTZLKXKJIMOHHG-UHFFFAOYSA-M 0.000 description 1
- FADYGXGJTNYCHZ-UHFFFAOYSA-M benzyl-dodecyl-diethylazanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](CC)(CC)CC1=CC=CC=C1 FADYGXGJTNYCHZ-UHFFFAOYSA-M 0.000 description 1
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- 230000008021 deposition Effects 0.000 description 1
- XJWSAJYUBXQQDR-UHFFFAOYSA-M dodecyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)C XJWSAJYUBXQQDR-UHFFFAOYSA-M 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
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- 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
- H01L21/02123—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 silicon
- H01L21/02126—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 silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC
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- H01L21/02205—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 the layer being characterised by the precursor material for deposition
- H01L21/02208—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 the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si
- H01L21/02214—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 the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound comprising silicon and oxygen
- H01L21/02216—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 the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound comprising silicon and oxygen the compound being a molecule comprising at least one silicon-oxygen bond and the compound having hydrogen or an organic group attached to the silicon or oxygen, e.g. a siloxane
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- 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
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- H01L21/314—Inorganic layers
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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
- H01L21/76801—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
- H01L21/7682—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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- H01L21/02164—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 silicon the material being a silicon oxide, e.g. SiO2
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- H01L2221/1005—Formation and after-treatment of dielectrics
- H01L2221/1042—Formation and after-treatment of dielectrics the dielectric comprising air gaps
- H01L2221/1047—Formation and after-treatment of dielectrics the dielectric comprising air gaps the air gaps being formed by pores in the dielectric
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Abstract
Description
Claims (15)
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 유기 실란, 물, 알코올, 및 산 또는 알칼리를 혼합하고; 그 혼합물에 계면활성제를 첨가하여 유기 실란 용액을 제조하고; 상기 유기 실란 용액을 반도체 기판에 스핀 코팅하여, 도포층을 수득한 후; 상기 도포층을 열처리하여 상기 물, 알코올 및 계면활성제를 증발시킴으로써, 다공성 SiO2 필름을 형성시키는 단계를 포함하는 것을 특징으로 하는 다공성 SOG 필름의 제조방법.
- 제 8 항에 있어서, 상기 방법은, 상기 열처리 후 수득한 상기 다공성 SiO2 필름의 표면상에 CVD 또는 스퍼터링 기법에 의해 SiO2 필름, 질화규소 필름 및 산질화규소 필름 중 하나를 형성시켜 상기 다공성 필름의 표면을 캡핑한 후, 상기 열처리 및 캡핑 단계를 한 번 이상 반복하여 다층 필름을 형성시키는 단계를 추가로 포함하는 것을 특징으로 하는 다공성 SOG 필름의 제조방법.
- 제 8 항에 있어서, 상기 다공성 SiO2 필름의 형성 후, 상기 다공성 SiO2 필름의 표면상에 CVD 또는 스퍼터링 기법에 의해 SiO2 필름, 질화규소 필름, 산질화규소 필름 중 하나를 형성시켜 상기 다공성 필름의 표면을 캡핑함으로써, 다공성 SiO2 필름을 형성시키는 것을 특징으로 하는 다공성 SOG 필름의 제조방법.
- 제 8 항에 있어서, 상기 다공성 SiO2 필름의 형성 후, 상기 다공성 필름을 산소 플라스마 처리, 전자빔 조사 처리 및 자외선 조사 처리 중 하나로 처리하여 상기 다공성 필름에 잔재하는 미반응 OH 기를 제거함으로써, 다공성 SiO2 필름을 형성시키는 것을 특징으로 하는 다공성 SOG 필름의 제조방법.
- 제 8 항에 있어서, 상기 열처리는 하기의 두 단계로 수행되는 것을 특징으로 하는 다공성 SOG 필름의 제조방법:- 상기 다공성 필름을 200 내지 350℃ 범위의 온도에서 처리하여, 상기 물 및 알코올을 증발시키는 제 1 단계; 및- 상기 다공성 필름을 350 내지 450℃ 범위의 온도에서 처리하여, 수득한 다공성 필름에 존재하는 정공의 적어도 내부 표면에 계면활성제 분자의 친수성 부분을 부착시키며 상기 다공성 필름의 형성을 종료시키고, 상기 정공의 내부 벽을 상기 계면활성제 분자의 소수성 부분으로 피복시킴으로써, 다공성 SiO2 필름을 형성시키는 제 2 단계.
- 제 8 항 내지 제 12 항 중 어느 한 항에 있어서, 상기 유기 실란은 가수분해 가능한 유기 옥시실란이며, 상기 계면활성제는 양이온성 계면활성제인 것을 특징으로 하는 다공성 SOG 필름의 제조방법.
- 제 8 항 내지 제 12 항 중 어느 한 항에 있어서, 상기 유기 실란은 TEOS 또는 TMOS이며, 상기 계면활성제는 라우릴 트리메틸 암모늄 클로리드, n-헥사데실 트리메틸 암모늄 클로리드, 알킬 트리메틸 암모늄 브로미드, 세틸 트리메틸 암모늄 클로리드, 세틸 트리메틸 암모늄 브로미드, 스테아릴 트리메틸 암모늄 클로리드, 알킬 디메틸 에틸 암모늄 클로리드, 알킬 디메틸 에틸 암모늄 브로미드, 세틸 디메틸 에틸 암모늄 브로미드, 디메틸 에틸 옥타데실 암모늄 브로미드 또는 메틸도데실 벤질 트리메틸 암모늄 클로리드와 같은 할로겐화된 알킬 트리메틸 암모늄 계의 양이온성 계면활성제인 것을 특징으로 하는 다공성 SOG 필름의 제조방법.
- 제 8 항 내지 제 12 항 중 어느 한 항에 있어서, 상기 물, 산 또는 알칼리, 및 계면활성제는 상기 유기 실란 1 몰에 대하여 각각 8 내지 15 몰, 0.5 내지 1.5 몰, 및 0.1 내지 0.4 몰 범위의 양으로 사용되는 것을 특징으로 하는 다공성 SOG 필름의 제조방법.
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JPJP-P-2000-00101478 | 2000-04-03 | ||
JP2000357808A JP4856307B2 (ja) | 2000-11-24 | 2000-11-24 | 多孔質sog膜の疎水化処理方法 |
JPJP-P-2000-00357808 | 2000-11-24 | ||
JPJP-P-2001-00045276 | 2001-02-21 | ||
JP2001045276A JP2001351911A (ja) | 2000-04-03 | 2001-02-21 | 多孔質sog膜の作製方法 |
JPJP-P-2001-00046728 | 2001-02-22 | ||
JP2001046797A JP4982012B2 (ja) | 2001-02-22 | 2001-02-22 | 疎水性多孔質sog膜の作製方法 |
JPJP-P-2001-00046727 | 2001-02-22 | ||
JP2001046728A JP5102920B2 (ja) | 2001-02-22 | 2001-02-22 | 多孔質sog膜の多層膜形成方法 |
JP2001046727A JP2002252225A (ja) | 2001-02-22 | 2001-02-22 | 疎水化多孔質sog膜の作製方法 |
JPJP-P-2001-00046797 | 2001-02-22 | ||
PCT/JP2001/002885 WO2001075957A1 (fr) | 2000-04-03 | 2001-04-03 | Procede de preparation d'un film poreux sog |
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