KR101812593B1 - 트랜지스터를 포함하는 반도체 장치의 제조 방법 - Google Patents
트랜지스터를 포함하는 반도체 장치의 제조 방법 Download PDFInfo
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- KR101812593B1 KR101812593B1 KR1020110134462A KR20110134462A KR101812593B1 KR 101812593 B1 KR101812593 B1 KR 101812593B1 KR 1020110134462 A KR1020110134462 A KR 1020110134462A KR 20110134462 A KR20110134462 A KR 20110134462A KR 101812593 B1 KR101812593 B1 KR 101812593B1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000012535 impurity Substances 0.000 claims abstract description 173
- 238000000034 method Methods 0.000 claims abstract description 102
- 239000000758 substrate Substances 0.000 claims abstract description 90
- 238000000137 annealing Methods 0.000 claims abstract description 28
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 21
- 229920005591 polysilicon Polymers 0.000 claims description 21
- 238000005468 ion implantation Methods 0.000 claims description 16
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 15
- 229910052796 boron Inorganic materials 0.000 claims description 15
- 238000005229 chemical vapour deposition Methods 0.000 claims description 11
- 238000000231 atomic layer deposition Methods 0.000 claims description 10
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 8
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 8
- 229910052707 ruthenium Inorganic materials 0.000 claims description 8
- 229910052715 tantalum Inorganic materials 0.000 claims description 8
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 8
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- 239000010936 titanium Substances 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- 239000011574 phosphorus Substances 0.000 claims description 7
- 238000011065 in-situ storage Methods 0.000 claims description 5
- 239000007943 implant Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 128
- 125000006850 spacer group Chemical group 0.000 description 43
- 239000011229 interlayer Substances 0.000 description 21
- 230000007547 defect Effects 0.000 description 9
- 238000005530 etching Methods 0.000 description 7
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000001039 wet etching Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000002955 isolation Methods 0.000 description 6
- 229910052814 silicon oxide Inorganic materials 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 229910052785 arsenic Inorganic materials 0.000 description 5
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 150000004767 nitrides Chemical class 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 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
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000004151 rapid thermal annealing 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
- 229910052726 zirconium Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 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
- YTRCVQWXYYPLAA-UHFFFAOYSA-N [GeH3+]=O Chemical compound [GeH3+]=O YTRCVQWXYYPLAA-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
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000002019 doping agent Substances 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
- 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
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005224 laser annealing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 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
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 230000001681 protective effect Effects 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
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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Abstract
Description
도 8 내지 도 12는 예시적인 실시예들에 따른 반도체 장치의 제조 방법을 나타내는 단면도들이다.
도 13 내지 도 17은 예시적인 실시예들에 따른 반도체 장치의 제조 방법을 나타내는 단면도들이다.
도 18 내지 도 23은 예시적인 실시예들에 따른 반도체 장치의 제조 방법을 나타내는 단면도들이다.
도 24 내지 도 28은 예시적인 실시예들에 따른 반도체 장치의 제조 방법을 나타내는 단면도들이다.
도 29는 예시적인 실시예들에 따른 반도체 장치의 제조 방법에 따라 구현 가능한 게이트 구조물의 평면 배치를 나타내는 레이아웃이다.
도 30 내지 도 34는 도 29에 도시된 반도체 장치의 제조 방법을 나타내는 단면도들이다.
110: 게이트 절연막 패턴 120: 버퍼막 패턴
130: 예비 게이트 전극 135: 제1 트렌치
140: 예비 게이트 구조물 150: 스페이서
160: 제1 층간 절연막 170: 희생층
175: 제2 트렌치 180: 게이트 전극
190: 게이트 구조물
Claims (10)
- 기판 상에 게이트 절연막 패턴을 형성하는 단계;
상기 게이트 절연막 패턴 상에 불순물이 도핑된 희생층을 형성하는 단계;
상기 희생층에 도핑된 불순물이 상기 게이트 절연막 패턴 내로 확산되도록 어닐링 공정을 수행하는 단계;
상기 희생층을 제거하는 단계; 및
상기 게이트 절연막 패턴 상에 게이트 전극을 형성하는 단계를 포함하는 반도체 장치의 제조 방법. - 제1항에 있어서, 상기 불순물은 보론 또는 인인 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제1항에 있어서, 상기 희생층은 폴리실리콘층을 포함하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제1항에 있어서, 상기 어닐링 공정은 900℃ 내지 1100℃의 온도에서 수행되는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제1항에 있어서, 상기 불순물이 도핑된 희생층을 형성하는 단계는, 불순물들을 인시츄 도핑하며 폴리실리콘층을 형성하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제5항에 있어서, 상기 불순물이 도핑된 희생층은 화학 기상 증착 공정 또는 원자층 증착 공정에 의해 형성되는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제1항에 있어서, 상기 불순물이 도핑된 희생층을 형성하는 단계는,
상기 게이트 절연막 패턴 상에 불순물이 도핑되지 않은 폴리실리콘층을 형성한 후, 이온 주입 공정을 수행하여 상기 폴리실리콘층 상에 불순물을 주입하는 것을 특징으로 하는 반도체 장치의 제조 방법. - 제7항에 있어서, 상기 이온 주입 공정은 1014 내지 1017 atoms/cm2의 도즈 범위를 사용하여 수행되는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제1항에 있어서, 상기 불순물이 도핑된 희생층을 형성하는 단계는,
상기 게이트 절연막 패턴 상에 버퍼막 패턴을 형성하는 단계; 및
상기 버퍼막 패턴 상에 상기 불순물이 도핑된 희생층을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 장치의 제조 방법. - 제9항에 있어서, 상기 버퍼막 패턴은 티타늄, 티타늄 질화물, 탄탈륨, 탄탈륨 질화물 또는 루테늄을 포함하는 것을 특징으로 하는 반도체 장치의 제조 방법.
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