KR100938301B1 - 기판 표면 및 챔버 표면을 위한 식각액 처리 공정 - Google Patents
기판 표면 및 챔버 표면을 위한 식각액 처리 공정 Download PDFInfo
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- KR100938301B1 KR100938301B1 KR1020077019991A KR20077019991A KR100938301B1 KR 100938301 B1 KR100938301 B1 KR 100938301B1 KR 1020077019991 A KR1020077019991 A KR 1020077019991A KR 20077019991 A KR20077019991 A KR 20077019991A KR 100938301 B1 KR100938301 B1 KR 100938301B1
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- silicon containing
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- 238000000034 method Methods 0.000 title claims abstract description 392
- 239000000758 substrate Substances 0.000 title claims abstract description 198
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 213
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 213
- 239000010703 silicon Substances 0.000 claims abstract description 213
- 238000005530 etching Methods 0.000 claims abstract description 140
- 238000004140 cleaning Methods 0.000 claims abstract description 55
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical group [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000356 contaminant Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims description 132
- 239000007789 gas Substances 0.000 claims description 86
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 71
- 239000012159 carrier gas Substances 0.000 claims description 51
- 150000001875 compounds Chemical class 0.000 claims description 35
- 239000013078 crystal Substances 0.000 claims description 35
- 229910052757 nitrogen Inorganic materials 0.000 claims description 35
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 27
- 229910000077 silane Inorganic materials 0.000 claims description 27
- 238000000151 deposition Methods 0.000 claims description 23
- 238000005137 deposition process Methods 0.000 claims description 23
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 22
- 230000008021 deposition Effects 0.000 claims description 12
- 238000000407 epitaxy Methods 0.000 claims description 12
- 229910052786 argon Inorganic materials 0.000 claims description 11
- 239000001307 helium Substances 0.000 claims description 11
- 229910052734 helium Inorganic materials 0.000 claims description 11
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 230000003746 surface roughness Effects 0.000 claims description 8
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims description 7
- 229910000577 Silicon-germanium Inorganic materials 0.000 claims description 7
- 150000004767 nitrides Chemical class 0.000 claims description 7
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 claims description 6
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 claims description 6
- LXEXBJXDGVGRAR-UHFFFAOYSA-N trichloro(trichlorosilyl)silane Chemical compound Cl[Si](Cl)(Cl)[Si](Cl)(Cl)Cl LXEXBJXDGVGRAR-UHFFFAOYSA-N 0.000 claims description 6
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 claims description 5
- AXQKVSDUCKWEKE-UHFFFAOYSA-N [C].[Ge].[Si] Chemical compound [C].[Ge].[Si] AXQKVSDUCKWEKE-UHFFFAOYSA-N 0.000 claims description 4
- 150000001805 chlorine compounds Chemical class 0.000 claims description 4
- 150000002222 fluorine compounds Chemical class 0.000 claims description 4
- ARRAUFATYJAYFI-UHFFFAOYSA-N F[Cl](F)(F)Cl Chemical compound F[Cl](F)(F)Cl ARRAUFATYJAYFI-UHFFFAOYSA-N 0.000 claims description 2
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 claims 1
- 231100000719 pollutant Toxicity 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 21
- 239000002210 silicon-based material Substances 0.000 abstract description 11
- 239000010453 quartz Substances 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000000460 chlorine Substances 0.000 description 21
- 238000004519 manufacturing process Methods 0.000 description 16
- 150000004756 silanes Chemical class 0.000 description 15
- 238000010926 purge Methods 0.000 description 13
- 238000005229 chemical vapour deposition Methods 0.000 description 12
- 229910052814 silicon oxide Inorganic materials 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 9
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- 229910052581 Si3N4 Inorganic materials 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 235000012239 silicon dioxide Nutrition 0.000 description 8
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 229910052732 germanium Inorganic materials 0.000 description 6
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 6
- 150000002431 hydrogen Chemical class 0.000 description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 6
- 229910010271 silicon carbide Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 235000012431 wafers Nutrition 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000002019 doping agent Substances 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 238000000231 atomic layer deposition Methods 0.000 description 3
- 238000003877 atomic layer epitaxy Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- UIUXUFNYAYAMOE-UHFFFAOYSA-N methylsilane Chemical compound [SiH3]C UIUXUFNYAYAMOE-UHFFFAOYSA-N 0.000 description 3
- 150000001282 organosilanes Chemical class 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000005046 Chlorosilane Substances 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- 229910003902 SiCl 4 Inorganic materials 0.000 description 2
- 229910003811 SiGeC Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 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
- 238000000277 atomic layer chemical vapour deposition Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000012707 chemical precursor Substances 0.000 description 2
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- UCMVNBCLTOOHMN-UHFFFAOYSA-N dimethyl(silyl)silane Chemical compound C[SiH](C)[SiH3] UCMVNBCLTOOHMN-UHFFFAOYSA-N 0.000 description 2
- UBHZUDXTHNMNLD-UHFFFAOYSA-N dimethylsilane Chemical compound C[SiH2]C UBHZUDXTHNMNLD-UHFFFAOYSA-N 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- KCWYOFZQRFCIIE-UHFFFAOYSA-N ethylsilane Chemical compound CC[SiH3] KCWYOFZQRFCIIE-UHFFFAOYSA-N 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- NEXSMEBSBIABKL-UHFFFAOYSA-N hexamethyldisilane Chemical compound C[Si](C)(C)[Si](C)(C)C NEXSMEBSBIABKL-UHFFFAOYSA-N 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 238000001182 laser chemical vapour deposition Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- IQCYANORSDPPDT-UHFFFAOYSA-N methyl(silyl)silane Chemical compound C[SiH2][SiH3] IQCYANORSDPPDT-UHFFFAOYSA-N 0.000 description 2
- 229910003465 moissanite Inorganic materials 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
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- 229920005591 polysilicon Polymers 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
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- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 2
- 239000005052 trichlorosilane Substances 0.000 description 2
- JOHWNGGYGAVMGU-UHFFFAOYSA-N trifluorochlorine Chemical compound FCl(F)F JOHWNGGYGAVMGU-UHFFFAOYSA-N 0.000 description 2
- VEDJZFSRVVQBIL-UHFFFAOYSA-N trisilane Chemical compound [SiH3][SiH2][SiH3] VEDJZFSRVVQBIL-UHFFFAOYSA-N 0.000 description 2
- 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
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910003923 SiC 4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RBFQJDQYXXHULB-UHFFFAOYSA-N arsane Chemical compound [AsH3] RBFQJDQYXXHULB-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
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- 239000010419 fine particle Substances 0.000 description 1
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- 229910052733 gallium Inorganic materials 0.000 description 1
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- 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
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hcl hcl Chemical compound Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004050 hot filament vapor deposition Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
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- 239000011253 protective coating Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000005368 silicate glass Substances 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
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 1
- 238000000038 ultrahigh vacuum chemical vapour deposition Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B6/00—Cleaning by electrostatic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
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- C25F3/30—Polishing of semiconducting materials
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
- H01L21/02043—Cleaning before device manufacture, i.e. Begin-Of-Line process
- H01L21/02046—Dry cleaning only
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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
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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
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- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
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- H01L21/823418—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the source or drain structures, e.g. specific source or drain implants or silicided source or drain structures or raised source or drain structures
- H01L21/823425—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the source or drain structures, e.g. specific source or drain implants or silicided source or drain structures or raised source or drain structures manufacturing common source or drain regions between a plurality of conductor-insulator-semiconductor structures
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Abstract
Description
Claims (56)
- 기판 표면 상에서 실리콘 함유 물질을 식각하기 위한 방법으로서,공정 챔버 안으로 오염물질을 함유한 실리콘 함유 물질을 포함하는 기판을 위치시키는 단계;800℃ 미만의 온도에서 클로르 가스, 실리콘 소스 및 캐리어 가스를 포함하는 식각 가스에 상기 실리콘 함유 물질을 노출시키는 단계; 및상기 실리콘 함유 물질의 예정된 두께 및 오염물질을 제거하는 단계를 포함하는,기판 표면 상에서 실리콘 함유 물질을 식각하기 위한 방법.
- 제 1 항에 있어서,상기 실리콘 함유 물질이 2Å/min 내지 20Å/min의 범위의 속도로 제거되는,기판 표면 상에서 실리콘 함유 물질을 식각하기 위한 방법.
- 제 2 항에 있어서,상기 공정 챔버가 500℃ 내지 700℃의 범위의 온도에서 유지되는,기판 표면 상에서 실리콘 함유 물질을 식각하기 위한 방법.
- 제 3 항에 있어서,상기 캐리어 가스가 질소, 아르곤, 헬륨 및 이의 화합물로 이루어진 그룹으로부터 선택되는,기판 표면 상에서 실리콘 함유 물질을 식각하기 위한 방법.
- 제 4 항에 있어서,상기 실리콘 소스가 실란, 디실란, 디클로로실란, 테트라클로로실란, 헥사클로로디실란, 이의 파생물(derivatives) 및 이의 화합물로 이루어진 그룹으로부터 선택되는,기판 표면 상에서 실리콘 함유 물질을 식각하기 위한 방법.
- 제 5 항에 있어서,상기 캐리어 가스가 질소이고 상기 실리콘 소스가 실란인,기판 표면 상에서 실리콘 함유 물질을 식각하기 위한 방법.
- 제 2 항에 있어서,상기 제거 단계 이후 에피택시(epitaxy) 증착 공정이 상기 공정 챔버에서 수행되는,기판 표면 상에서 실리콘 함유 물질을 식각하기 위한 방법.
- 제 7 항에 있어서,상기 오염물질이 산화물, 플루오라이드(flourides), 클로라이드(chlorides), 질화물, 유기 잔여물, 탄소, 이의 파생물 및 이의 화합물로부터 선택되는,기판 표면 상에서 실리콘 함유 물질을 식각하기 위한 방법.
- 제 8 항에 있어서,상기 기판이 상기 공정 챔버 안에 위치하기 이전에 웨트 세정 공정(wet clean process)에 노출되는,기판 표면 상에서 실리콘 함유 물질을 식각하기 위한 방법.
- 제 9 항에 있어서,상기 기판이, 상기 웨트 세정 공정 이후 그리고 상기 공정 챔버 안에 위치하기 이전에, 6시간 내지 24시간 범위의 시간 주기 동안 주위 조건(ambient conditions)에 노출되는,기판 표면 상에서 실리콘 함유 물질을 식각하기 위한 방법.
- 제 8 항에 있어서,상기 실리콘 함유 물질이 상기 제거 단계 동안 제거되는 거친 표면을 추가로 포함하는,기판 표면 상에서 실리콘 함유 물질을 식각하기 위한 방법.
- 기판 표면 상에 실리콘 함유 물질을 형성하기 위한 방법으로서,공정 챔버 안에 기판을 위치시키는 단계 - 이 기판은 1nm RMS 또는 초과의 제 1 표면 거칠기를 포함하는 실리콘 함유 물질을 함유함-;800℃ 미만의 온도에서 식각액, 실리콘 소스 및 캐리어 가스를 포함하는 식각 가스에 상기 실리콘 함유 물질을 노출시키는 단계; 및1nm RMS 미만의 제 2 표면 거칠기를 형성하도록 상기 실리콘 함유 물질을 재분배하는 단계를 포함하는,기판 표면 상에서 실리콘 함유 물질을 평탄화하는 방법.
- 제 12 항에 있어서,상기 실리콘 함유 물질의 예정된 두께가 2Å/min 내지 20Å/min의 범위의 속도로 제거되는,기판 표면 상에서 실리콘 함유 물질을 평탄화하는 방법.
- 제 12 항에 있어서,상기 공정 챔버가 500℃ 내지 700℃의 범위의 온도에서 유지되는,기판 표면 상에서 실리콘 함유 물질을 평탄화하는 방법.
- 제 14 항에 있어서,상기 캐리어 가스가 질소, 아르곤, 헬륨 및 이의 화합물로 이루어진 그룹으로부터 선택되는,기판 표면 상에서 실리콘 함유 물질을 평탄화하는 방법.
- 제 15 항에 있어서,상기 실리콘 소스가 실란, 디실란, 디클로로실란, 테트라클로로실란, 헥사클로로디실란, 이의 파생물 및 이의 화합물로 이루어진 그룹으로부터 선택되는,기판 표면 상에서 실리콘 함유 물질을 평탄화하는 방법.
- 제 16 항에 있어서,상기 식각액이 클로르, 클로르 트리플루오라이드, 테트라클로로실란, 이의 파생물 및 이의 화합물로 이루어진 그룹으로부터 선택되는,기판 표면 상에서 실리콘 함유 물질을 평탄화하는 방법.
- 제 17 항에 있어서,상기 캐리어 가스가 질소이고 상기 실리콘 소스가 실란이며 상기 식각액이 클로르 가스인,기판 표면 상에서 실리콘 함유 물질을 평탄화하는 방법.
- 제 14 항에 있어서,상기 재분배 단계 이후 에피택시 증착 공정이 상기 공정 챔버에서 수행되는,기판 표면 상에서 실리콘 함유 물질을 평탄화하는 방법.
- 제 19 항에 있어서,상기 실리콘 함유 물질이 상기 재분배 단계 동안 제거되는 오염물질을 추가로 포함하고, 상기 오염물질이 산화물, 플루오라이드, 클로라이드, 질화물, 유기 잔여물, 탄소, 이의 파생물 및 이의 화합물로 이루어진 그룹으로부터 선택되는,기판 표면 상에서 실리콘 함유 물질을 평탄화하는 방법.
- 제 19 항에 있어서,상기 기판이 상기 공정 챔버 안에 위치하기 이전에 웨트 세정 공정에 노출되는,기판 표면 상에서 실리콘 함유 물질을 평탄화하는 방법.
- 제 21 항에 있어서,상기 기판이, 상기 웨트 세정 공정 이후 그리고 상기 공정 챔버 안에 위치하기 이전에, 6시간 내지 24시간 범위의 시간 주기 동안 주위 조건에 노출되는,기판 표면 상에서 실리콘 함유 물질을 평탄화하는 방법.
- 기판 상에서 실리콘 함유 단결정 물질을 식각하는 방법으로서,이 기판이 질화물 물질, 산화물 물질 또는 이의 화합물로 이루어진 그룹으로부터 선택된 제 2 물질을 일부 또는 전부 포함하고,공정 챔버 안에 기판을 위치시키는 단계;800℃ 미만의 온도에서 클로르 가스 및 캐리어 가스를 포함하는 식각 가스에 상기 기판을 노출시키는 단계;노출된 단결정 표면을 형성하도록 상기 실리콘 함유 단결정 물질의 예정된 두께를 제거하는 단계; 및상기 공정 챔버에서 상기 노출된 단결정 표면 상에 에피택셜 층을 증착시키는 단계를 포함하는,기판 상에서 실리콘 함유 단결정 물질을 식각하는 방법.
- 제 23 항에 있어서,상기 식각 가스가 실란, 디실란, 디클로로실란, 테트라클로로실란, 헥사클로로디실란, 이의 파생물 및 이의 화합물로 이루어진 그룹으로부터 선택되는 실리콘 소스를 추가로 포함하는,기판 상에서 실리콘 함유 단결정 물질을 식각하는 방법.
- 제 23 항에 있어서,상기 공정 챔버가 500℃ 내지 700℃ 범위의 온도에서 유지되는,기판 상에서 실리콘 함유 단결정 물질을 식각하는 방법.
- 제 25 항에 있어서,상기 캐리어 가스가 질소, 아르곤, 헬륨 및 이의 화합물로 이루어진 그룹으로부터 선택되는,기판 상에서 실리콘 함유 단결정 물질을 식각하는 방법.
- 제 26 항에 있어서,상기 단결정 물질의 예정된 두께가 200Å/min 내지 1000Å/min의 범위의 속도로 제거되는,기판 상에서 실리콘 함유 단결정 물질을 식각하는 방법.
- 제 27 항에 있어서,상기 공정 챔버가 10Torr 내지 750Torr의 범위의 압력에서 유지되는,기판 상에서 실리콘 함유 단결정 물질을 식각하는 방법.
- 제 28 항에 있어서,상기 에피택셜 층이 실리콘, 실리콘-게르마늄, 실리콘-탄소, 실리콘-게르마늄-탄소, 이의 파생물 및 이의 화합물로 이루어진 그룹으로부터 선택되는 물질을 포함하는,기판 상에서 실리콘 함유 단결정 물질을 식각하는 방법.
- 제 23 항에 있어서,상기 실리콘 함유 단결정 물질의 예정된 두께를 제거하는 단계가 상기 기판 상의 소스/드레인(source/drain) 구역 내에서 리세스 형성물(recess formation)을 형성하는,기판 상에서 실리콘 함유 단결정 물질을 식각하는 방법.
- 제 30 항에 있어서,상기 소스/드레인 구역이 CMOS, 바이폴라(Bipolar) 또는 BiCMOS 응용으로 이루어진 그룹으로부터 선택된 소자 내에서 이용되는,기판 상에서 실리콘 함유 단결정 물질을 식각하는 방법.
- 기판 상에 실리콘 함유 단결정 물질을 형성하는 방법으로서,HF-라스트(HF-last) 웨트 세정 공정에 기판을 노출시키는 단계;공정 챔버 안에 상기 기판을 위치시키는 단계;800℃ 미만의 온도에서 클로르 가스 및 캐리어 가스를 포함하는 식각 가스에 상기 기판을 노출시키는 단계;노출된 단결정 표면을 형성하도록 상기 실리콘 함유 단결정 물질의 예정된 두께를 제거하는 단계;상기 공정 챔버에서 상기 노출된 단결정 표면 상에 에피택시 층을 증착시키는 단계; 및위에 부착된 실리콘 함유 오염물질을 제거하기 위해 상기 클로르 가스로 상기 공정 챔버를 세정하는 단계를 포함하는,기판 상에 실리콘 함유 단결정 물질을 형성하는 방법.
- 제 32 항에 있어서,상기 에피택시 층이 상기 클로르 가스를 함유한 증착 가스에 의해 증착되는,기판 상에 실리콘 함유 단결정 물질을 형성하는 방법.
- 제 33 항에 있어서,상기 캐리어 가스가 질소인,기판 상에 실리콘 함유 단결정 물질을 형성하는 방법.
- 제 34 항에 있어서,질소가 상기 공정 챔버 세정 단계 동안 그리고 증착 가스에서 상기 클로르와 함께 유동하는,기판 상에 실리콘 함유 단결정 물질을 형성하는 방법.
- 제 1 항에 있어서,상기 제거 단계가, 상기 기판 상의 소스 및 드레인 구역에 리세스를 형성하는 단계를 추가로 포함하는,기판 표면 상에서 실리콘 함유 물질을 식각하기 위한 방법.
- 제 12 항에 있어서,상기 재분배 단계가, 상기 기판 상의 소스 및 드레인 구역에 리세스를 형성하는 단계를 추가로 포함하는,기판 표면 상에서 실리콘 함유 물질을 평탄화하는 방법.
- 제 23 항에 있어서,상기 제거 단계가, 상기 기판 상의 소스 및 드레인 구역에 리세스를 형성하는 단계를 추가로 포함하는,기판 상에서 실리콘 함유 단결정 물질을 식각하는 방법.
- 제 32 항에 있어서,상기 제거 단계가, 상기 기판 상의 소스 및 드레인 구역에 리세스를 형성하는 단계를 추가로 포함하는,기판 상에 실리콘 함유 단결정 물질을 형성하는 방법.
- 제 32 항에 있어서,상기 공정 챔버가 500℃ 내지 700℃의 범위의 온도에서 유지되는,기판 상에 실리콘 함유 단결정 물질을 형성하는 방법.
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US11/047,323 US7235492B2 (en) | 2005-01-31 | 2005-01-31 | Low temperature etchant for treatment of silicon-containing surfaces |
US11/242,613 US8093154B2 (en) | 2005-01-31 | 2005-10-03 | Etchant treatment processes for substrate surfaces and chamber surfaces |
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KR100868228B1 (ko) * | 2007-12-04 | 2008-11-11 | 주식회사 켐트로닉스 | 유리 기판용 식각액 조성물 |
US8530286B2 (en) | 2010-04-12 | 2013-09-10 | Suvolta, Inc. | Low power semiconductor transistor structure and method of fabrication thereof |
WO2012067112A1 (ja) * | 2010-11-17 | 2012-05-24 | 新日本製鐵株式会社 | エピタキシャル炭化珪素単結晶基板の製造方法 |
WO2018052475A1 (en) * | 2016-09-16 | 2018-03-22 | Applied Materials, Inc. | Integrated system and method for source/drain engineering |
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