KR102229705B1 - 반도체 장치를 제조하기 위한 방법 및 반도체 장치 - Google Patents
반도체 장치를 제조하기 위한 방법 및 반도체 장치 Download PDFInfo
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- KR102229705B1 KR102229705B1 KR1020197013700A KR20197013700A KR102229705B1 KR 102229705 B1 KR102229705 B1 KR 102229705B1 KR 1020197013700 A KR1020197013700 A KR 1020197013700A KR 20197013700 A KR20197013700 A KR 20197013700A KR 102229705 B1 KR102229705 B1 KR 102229705B1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 181
- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000012212 insulator Substances 0.000 claims abstract description 132
- 125000004429 atom Chemical group 0.000 claims abstract description 53
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 33
- 239000000470 constituent Substances 0.000 claims abstract description 30
- 230000008569 process Effects 0.000 claims abstract description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims description 111
- 229910052760 oxygen Inorganic materials 0.000 claims description 37
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 30
- 239000001301 oxygen Substances 0.000 claims description 30
- 230000015572 biosynthetic process Effects 0.000 claims description 23
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 20
- 229910000077 silane Inorganic materials 0.000 claims description 20
- 239000001257 hydrogen Substances 0.000 claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 229910005555 GaZnO Inorganic materials 0.000 claims description 6
- 238000005229 chemical vapour deposition Methods 0.000 claims description 6
- 229910052738 indium Inorganic materials 0.000 claims description 4
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 4
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 claims description 4
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 242
- 239000010408 film Substances 0.000 description 56
- 239000010409 thin film Substances 0.000 description 31
- 238000004544 sputter deposition Methods 0.000 description 26
- 239000000463 material Substances 0.000 description 24
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 15
- 239000000758 substrate Substances 0.000 description 14
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 13
- 229910001882 dioxygen Inorganic materials 0.000 description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 10
- 239000006185 dispersion Substances 0.000 description 9
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 8
- 239000011521 glass Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 125000004433 nitrogen atom Chemical group N* 0.000 description 5
- 239000011241 protective layer Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005355 Hall effect Effects 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
도 2는 절연체층을 형성하는 데 사용되는 장치의 예로서 플라즈마 CVD 장치의 개략적인 구성을 나타내는 블록도이다.
도 3은 박막 트랜지스터의 실시예에서 반도체 장치의 단면 구조를 나타내는 단면도이다.
도 4는 시험예에서 수득된 적층체의 단면 구조를 나타내는 단면도이다.
도 5는 고주파 전력 및 절연체층의 수소 원자 농도 사이의 관계를 나타내는 그래프이다.
도 6은 고주파 전력 및 절연체층의 탄소 원자 농도 사이의 관계를 나타내는 그래프이다.
도 7은 고주파 전력 및 절연체층의 질소 원자 농도 사이의 관계를 나타내는 그래프이다.
도 8은 고주파 전력 및 절연체층 내의 굴절률 사이의 관계를 나타내는 그래프이다.
도 9는 고주파 전력 및 절연체층 내의 막 응력 사이의 관계를 나타내는 그래프이다.
도 10은 수소 원자 농도 및 절연체층 내의 캐리어 농도 사이의 관계를 나타내는 그래프이다.
도 11은 박막 트랜지스터의 제1 실시예의 전압-전류 특성들을 타나내는 그래프이다.
도 12는 박막 트랜지스터의 제1 비교예의 전압-전류 특성들을 나타내는 그래프이다.
12, 22: 지지체 13: 음극
13a: 타겟 13b: 백킹 플레이트
14: 타겟 전력 공급원 15, 24: 가스 배출부
16: 스퍼터링 가스 공급부 20: 플라즈마 CVD 장치
23: 분산부 25: 막 형성 가스 공급 유닛
25a: 항온조 25b: 저장조
25c: 막 형성 가스 공급부 26: 산소-함유 가스 공급부
27: 히터 28: 고주파 전력 공급원
30: 박막 트랜지스터 31, 42: 반도체층
31s: 표면 32, 43: 절연체층
33: 기판 34: 게이트 전극
35: 게이트 절연체층 36: 소스 전극
37: 드레인 전극 38: 보호막
40: 라미네이트된 몸체 41: 유리 기판
43A: 제1 부분 43B: 제2 부분
43C: 제3 부분 44A: 제 전극층
44B: 제2 전극층 M: 막 형성 물질
S: 막 형성 대상
Claims (11)
- 반도체 장치를 제조하기 위한 방법에 있어서,
표면을 가지고, 주요 구성 성분으로 산화물 반도체를 포함하는 반도체층을 형성하는 단계; 및
상기 반도체층의 표면상에 소스 가스 및 산소-함유 가스를 사용하는 플라즈마 화학 기상 증착(CVD) 공정을 통해 절연체층을 형성하는 단계를 포함하며, 상기 절연체층은 주요 구성 성분으로 실리콘 산화물을 포함하고,
상기 반도체층의 표면상에 절연체층을 형성하는 단계를 포함하며, 상기 절연체층은 주요 구성 성분으로 실리콘 산화물을 포함하고, 1×1021원자/㎤ 보다 작거나 같은 수소 원자 농도를 가지며,
상기 소스 가스는 실리콘 및 이소시아네이트 기(isocyanate group)를 함유하고, 수소를 함유하지 않으며,
상기 절연체층을 형성하는 단계는,
상기 소스 가스의 유량을 0.005sccm/㎠ 보다 크거나 같고 0.1sccm/㎠ 보다 작거나 같은 유량으로 설정하는 단계,
상기 소스 가스 및 상기 산소-함유 가스를 막 형성 공간에 공급하여 혼합된 가스를 발생시키는 단계, 그리고
0.07W/㎠ 보다 크거나 같고, 1.5W/㎠ 보다 작거나 같은 레벨에서 13.56㎒ 또는 27.12㎒의 주파수를 갖는 고주파 전력을 상기 막 형성 공간 내에 배치되는 전극에 공급하여 상기 혼합된 가스로부터 플라즈마를 발생시키는 단계를 포함하는 것을 특징으로 하는 반도체 장치를 제조하기 위한 방법. - 제 1 항에 있어서, 상기 반도체층을 형성하는 단계는 주요 구성 성분으로 산화물 반도체를 포함하는 적어도 하나의 반도체층을 형성하는 단계를 포함하며, 상기 적어도 하나의 반도체층의 상기 주요 구성 성분은,
인듐(In) 및 산소(O)을 포함하는 산화물 반도체; 및
아연(Zn) 및 산소(O)를 포함하는 산화물 반도체 중의 임의의 것인 것을 특징으로 하는 반도체 장치를 제조하기 위한 방법. - 제 1 항에 있어서, 상기 반도체층을 형성하는 단계는 주요 구성 성분으로 산화물 반도체를 포함하는 적어도 하나의 반도체층을 형성하는 단계를 포함하며, 상기 적어도 하나의 반도체층의 상기 주요 구성 성분은 InGaZnO, GaZnO, InZnO, InTiZnO, InAlZnO, ZnTiO, ZnO, ZnAlO 및 ZnCuO로 이루어진 그룹으로부터 선택되는 임의의 것인 것을 특징으로 하는 반도체 장치를 제조하기 위한 방법.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 절연체층을 형성하는 단계는 상기 소스 가스로 Si(NCO)4, Si(NCO)3Cl, Si(NCO)2Cl2 및 Si(NCO)Cl3으로 이루어진 그룹으로부터 선택되는 임의의 것을 사용하는 단계를 포함하는 것을 특징으로 하는 반도체 장치를 제조하기 위한 방법.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 절연체층을 형성하는 단계는 상기 산소-함유 가스로 O2, O3, N2O, CO 및 CO2로 이루어진 그룹으로부터 선택되는 임의의 것을 사용하는 단계를 포함하는 것을 특징으로 하는 반도체 장치를 제조하기 위한 방법.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 절연체층을 형성하는 단계는,
상기 소스 가스로 테트라이소시아네이트실란(tetraisocyanatesilane) 가스를 사용하는 단계; 및
상기 테트라이소시아네이트실란 가스의 유량에 대한 상기 전극에 인가되는 상기 전력의 비율을 17W/sccm 보다 크거나 같게 설정하는 단계를 포함하는 것을 특징으로 하는 반도체 장치를 제조하기 위한 방법. - 삭제
- 삭제
- 삭제
- 삭제
- 삭제
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