KR102492302B1 - 반도체 소자 및 그 제조 방법 - Google Patents
반도체 소자 및 그 제조 방법 Download PDFInfo
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- KR102492302B1 KR102492302B1 KR1020180032063A KR20180032063A KR102492302B1 KR 102492302 B1 KR102492302 B1 KR 102492302B1 KR 1020180032063 A KR1020180032063 A KR 1020180032063A KR 20180032063 A KR20180032063 A KR 20180032063A KR 102492302 B1 KR102492302 B1 KR 102492302B1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 115
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims description 66
- 239000000758 substrate Substances 0.000 claims abstract description 42
- 238000002955 isolation Methods 0.000 claims abstract description 34
- 238000000059 patterning Methods 0.000 claims abstract description 12
- 238000005229 chemical vapour deposition Methods 0.000 claims description 42
- 238000006243 chemical reaction Methods 0.000 claims description 36
- 239000007789 gas Substances 0.000 claims description 35
- 230000003647 oxidation Effects 0.000 claims description 15
- 238000007254 oxidation reaction Methods 0.000 claims description 15
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 3
- LUXIMSHPDKSEDK-UHFFFAOYSA-N bis(disilanyl)silane Chemical compound [SiH3][SiH2][SiH2][SiH2][SiH3] LUXIMSHPDKSEDK-UHFFFAOYSA-N 0.000 claims description 2
- VEDJZFSRVVQBIL-UHFFFAOYSA-N trisilane Chemical compound [SiH3][SiH2][SiH3] VEDJZFSRVVQBIL-UHFFFAOYSA-N 0.000 claims description 2
- 229910003910 SiCl4 Inorganic materials 0.000 claims 1
- 229910003980 SiCl6 Inorganic materials 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 119
- 239000012535 impurity Substances 0.000 description 32
- 239000011229 interlayer Substances 0.000 description 19
- 238000003860 storage Methods 0.000 description 13
- 230000004888 barrier function Effects 0.000 description 10
- 125000006850 spacer group Chemical group 0.000 description 10
- 239000013256 coordination polymer Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 230000009257 reactivity Effects 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 150000004767 nitrides Chemical class 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 229910052814 silicon oxide Inorganic materials 0.000 description 7
- 101100113507 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) cnh-1 gene Proteins 0.000 description 5
- 239000008186 active pharmaceutical agent Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000007769 metal material Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 229910052715 tantalum Inorganic materials 0.000 description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000005137 deposition process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- XWCMFHPRATWWFO-UHFFFAOYSA-N [O-2].[Ta+5].[Sc+3].[O-2].[O-2].[O-2] Chemical compound [O-2].[Ta+5].[Sc+3].[O-2].[O-2].[O-2] XWCMFHPRATWWFO-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- ILCYGSITMBHYNK-UHFFFAOYSA-N [Si]=O.[Hf] Chemical compound [Si]=O.[Hf] ILCYGSITMBHYNK-UHFFFAOYSA-N 0.000 description 1
- VKJLWXGJGDEGSO-UHFFFAOYSA-N barium(2+);oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[Ti+4].[Ba+2] VKJLWXGJGDEGSO-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000012782 phase change material Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 description 1
- CZXRMHUWVGPWRM-UHFFFAOYSA-N strontium;barium(2+);oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[Ti+4].[Sr+2].[Ba+2] CZXRMHUWVGPWRM-UHFFFAOYSA-N 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- -1 tetrasilane Chemical compound 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910021341 titanium silicide Inorganic materials 0.000 description 1
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 1
- 229910021342 tungsten silicide Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
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- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/01—Manufacture or treatment
- H10B12/02—Manufacture or treatment for one transistor one-capacitor [1T-1C] memory cells
- H10B12/05—Making the transistor
- H10B12/053—Making the transistor the transistor being at least partially in a trench in the substrate
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- H01L29/66045—
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- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/32105—Oxidation of silicon-containing layers
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- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
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- H10D30/01—Manufacture or treatment
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- C—CHEMISTRY; METALLURGY
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/02—Pretreatment of the material to be coated
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/04—Coating on selected surface areas, e.g. using masks
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- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/24—Deposition of silicon only
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- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
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- 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
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
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- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
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- 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
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
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- H01L21/76232—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials of trenches having a shape other than rectangular or V-shape, e.g. rounded corners, oblique or rounded trench walls
- H01L21/76235—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials of trenches having a shape other than rectangular or V-shape, e.g. rounded corners, oblique or rounded trench walls trench shape altered by a local oxidation of silicon process step, e.g. trench corner rounding by LOCOS
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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
- H01L21/76802—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 by forming openings in dielectrics
- H01L21/76816—Aspects relating to the layout of the pattern or to the size of vias or trenches
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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
- H01L21/76853—Barrier, adhesion or liner layers characterized by particular after-treatment steps
- H01L21/76861—Post-treatment or after-treatment not introducing additional chemical elements into the layer
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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
- H01L21/76871—Layers specifically deposited to enhance or enable the nucleation of further layers, i.e. seed layers
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Abstract
Description
도 2a, 도 4a, 도 6a, 도 8a, 도 10a, 도 12a, 도 14a 및 도 16a는 각각 도 1, 도 3, 도 5, 도 7, 도 9, 도 11, 도 13 및 도 15의 A-A'선에 따른 단면도들이다.
도 2b, 도 4b, 도 6b, 도 8b, 도 10b, 도 12b, 도 14b, 및 도 16b는 각각 도 1, 도 3, 도 5, 도 7, 도 9, 도 11, 도 13 및 도 15의 B-B'선에 따른 단면도들이다.
도 2c, 도 4c, 도 6c, 도 8c, 도 10c, 도 12c, 도 14c 및 도 16c는 각각 도 1, 도 3, 도 5, 도 7, 도 9, 도 11, 도 13 및 도 15의 C-C'선에 따른 단면도들이다.
도 17 및 도 18 각각은 본 발명의 실시예들에 따른 반도체 막을 형성하기 위한 증착 장비를 개략적으로 도시한 단면도이다.
도 19a 내지 도 19c는 본 발명의 실시예들에 따른 반도체 소자를 제조하는 방법을 설명하기 위한 것으로, 각각 도 5의 A-A'선, B-B'선 및 C-C'선에 따른 단면도들이다.
도 20은 본 발명의 실시예들에 따른 반도체 소자를 설명하기 위한 것으로, 도 15의 B-B'선에 따른 단면도이다.
조건 | 실험예 1 (Si4H10) | 비교예 1 (Si2H6) |
스텝 커버리지 | 80% 내지 85% | 95% 내지 99% |
Claims (33)
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- 반도체 기판을 패터닝하여 복수개의 활성 패턴들을 형성하는 것, 상기 복수개의 활성 패턴들은 제1 트렌치를 사이에 두고 제2 방향으로 서로 인접하는 두 개의 활성 패턴들을 포함하고;
상기 복수개의 활성 패턴들을 덮는 반도체 막을 형성하는 것;
상기 반도체 막을 덮으며 상기 제1 트렌치를 채우는 소자 분리막을 형성하는 것, 상기 소자 분리막을 형성하는 것은 반도체 산화 공정을 포함하고, 상기 반도체 산화 공정을 수행하는 동안 상기 반도체 막이 산화되어 반도체 산화막이 형성되며;
상기 소자 분리막과 상기 복수개의 활성 패턴들을 패터닝하여 상기 두 개의 활성 패턴들과 상기 제1 트렌치를 가로지르는 제3 트렌치를 형성하는 것, 상기 제3 트렌치 내에서 상기 두 개의 활성 패턴들은 상기 소자 분리막 위로 돌출되고; 및
상기 제3 트렌치 내에 게이트 전극을 형성하는 것을 포함하되,
상기 반도체 막은, 상기 두 개의 활성 패턴들 각각의 상면 상에서의 제1 두께가 상기 제1 트렌치의 바닥 상에서의 제2 두께보다 커지도록 형성되는 반도체 소자의 제조 방법.
- 제21항에 있어서,
상기 제1 두께에 대한 상기 제2 두께의 비는 0.5 내지 0.85인 반도체 소자의 제조 방법.
- 제21항에 있어서,
상기 반도체 기판을 패터닝함으로써, 제3 방향으로 서로 인접하는 다른 두 개의 활성 패턴들 사이에 제2 트렌치가 형성되고,
상기 제3 방향은 상기 제2 방향과 사선으로 교차하는 방향이며,
상기 제2 트렌치는 상기 제1 트렌치보다 깊은 반도체 소자의 제조 방법.
- 제21항에 있어서,
상기 반도체 막을 형성하는 것은:
뱃치 타입의 반응 챔버 내부에 제공된 복수개의 슬롯들 각각 상에 상기 반도체 기판을 배치하는 것; 및
상기 뱃치 타입의 반응 챔버 내부에 소스 가스를 투입하여, 화학 기상 증착 공정을 수행하는 것을 포함하고,
상기 소스 가스는 SixH2x+2를 포함하고,
상기 x는 3 이상의 정수인 반도체 소자의 제조 방법.
- 제24항에 있어서,
상기 소스 가스는 트리실란, 테트라실란 또는 펜타실란을 포함하는 반도체 소자의 제조 방법.
- 제25항에 있어서,
상기 화학 기상 증착 공정은, 1×10-1 Torr 내지 1 Torr의 압력 및 350℃ 내지 600℃의 온도에서 100 sccm 내지 400 sccm의 소스 가스 유량으로 수행되는 반도체 소자의 제조 방법.
- 제24항에 있어서,
상기 화학 기상 증착 공정을 수행하는 것은, 상기 소스 가스의 투입 전에, 상기 뱃치 타입의 반응 챔버 내부에 다른 소스 가스를 투입하여 상기 복수개의 활성 패턴들 상에 실리콘 질화막을 형성하는 것을 더 포함하는 반도체 소자의 제조 방법.
- 제27항에 있어서,
상기 다른 소스 가스는 아미노 실란을 포함하는 반도체 소자의 제조 방법.
- 제21항에 있어서,
상기 반도체 막을 형성하는 것은:
싱글 타입의 반응 챔버 내부에 제공된 서셉터 상에 상기 반도체 기판을 배치하는 것;
상기 서셉터 상의 상기 반도체 기판을 가열하는 것;
상기 싱글 타입의 반응 챔버 내부에 소스 가스를 투입하여, 화학 기상 증착 공정을 수행하는 것을 포함하고,
상기 화학 기상 증착 공정은, 10 Torr 내지 200 Torr의 압력 및 400℃ 내지 600℃의 온도에서 5 sccm 내지 50 sccm의 소스 가스 유량으로 수행되는 반도체 소자의 제조 방법.
- 제29항에 있어서,
상기 소스 가스는 SixH2x+2, SiCl4, SiCl6 또는 SiCl2H4를 포함하고,
상기 x는 1 이상의 정수인 반도체 소자의 제조 방법.
- 제30항에 있어서,
상기 소스 가스는 모노실란 또는 다이실란을 포함하는 반도체 소자의 제조 방법.
- 제29항에 있어서,
상기 화학 기상 증착 공정 동안, 싱글 타입의 반응 챔버 내부에 상기 소스 가스와 함께 수소가 추가로 투입되는 반도체 소자의 제조 방법.
- 제29항에 있어서,
상기 화학 기상 증착 공정을 수행하는 것은, 상기 소스 가스의 투입 전에, 상기 싱글 타입의 반응 챔버 내부에 아미노 실란을 포함하는 다른 소스 가스를 투입하여 상기 복수개의 활성 패턴들 상에 실리콘 질화막을 형성하는 것을 더 포함하는 반도체 소자의 제조 방법.
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