KR102002815B1 - 반도체 장치 및 이의 제조 방법 - Google Patents
반도체 장치 및 이의 제조 방법 Download PDFInfo
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- KR102002815B1 KR102002815B1 KR1020120098464A KR20120098464A KR102002815B1 KR 102002815 B1 KR102002815 B1 KR 102002815B1 KR 1020120098464 A KR1020120098464 A KR 1020120098464A KR 20120098464 A KR20120098464 A KR 20120098464A KR 102002815 B1 KR102002815 B1 KR 102002815B1
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- 239000004065 semiconductor Substances 0.000 title abstract description 43
- 238000004519 manufacturing process Methods 0.000 title abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 90
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- 229910052581 Si3N4 Inorganic materials 0.000 claims description 43
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 42
- 230000001681 protective effect Effects 0.000 claims description 41
- 239000000463 material Substances 0.000 claims description 24
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 22
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- 229910052710 silicon Inorganic materials 0.000 claims description 19
- 239000010703 silicon Substances 0.000 claims description 19
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 14
- 229910052739 hydrogen Inorganic materials 0.000 claims description 14
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 12
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- 229910052751 metal Inorganic materials 0.000 claims description 9
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- 229910052721 tungsten Inorganic materials 0.000 claims description 8
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- 229910052707 ruthenium Inorganic materials 0.000 claims description 6
- 229910052715 tantalum Inorganic materials 0.000 claims description 6
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- 239000010936 titanium Substances 0.000 claims description 6
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 150000004767 nitrides Chemical class 0.000 claims description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 5
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- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 19
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- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 8
- 238000009832 plasma treatment Methods 0.000 description 8
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 239000001569 carbon dioxide Substances 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000004215 Carbon black (E152) Substances 0.000 description 5
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- 238000001505 atmospheric-pressure chemical vapour deposition Methods 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 229960001730 nitrous oxide Drugs 0.000 description 5
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 5
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- QDWJUBJKEHXSMT-UHFFFAOYSA-N boranylidynenickel Chemical compound [Ni]#B QDWJUBJKEHXSMT-UHFFFAOYSA-N 0.000 description 2
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- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
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- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 2
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- 238000001039 wet etching Methods 0.000 description 2
- SUAYEVBWVUPIRF-UHFFFAOYSA-N (diisothiocyanatohydrazinylidene)-sulfanylidenemethane Chemical compound S=C=NN(N=C=S)N=C=S SUAYEVBWVUPIRF-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
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- GRHBQAYDJPGGLF-UHFFFAOYSA-N isothiocyanic acid Chemical compound N=C=S GRHBQAYDJPGGLF-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
도 2 내지 도 10은 도 1의 반도체 장치를 제조하는 과정을 순차적으로 나타낸 단면도들이다.
도 11은 본 발명의 다른 예에 따른 반도체 장치의 단면도이다.
도 12 내지 16은 도 11의 반도체 장치를 제조하는 과정을 순차적으로 나타낸 단면도들이다.
도 17은 본 발명의 또 다른 예에 따른 반도체 장치의 단면도이다.
도 18 및 19는 도 17의 반도체 장치를 제조하는 과정을 순차적으로 나타낸 단면도들이다.
도 20은 본 발명의 또 다른 예에 따른 반도체 장치의 단면도이다.
도 21a 내지 21c는 본 발명의 실험예들에 따라 제조된 반도체 장치의 단면 사진들을 나타낸다.
도 22는 본 발명의 예들에 따른 구조를 포함하는 메모리 시스템의 일 예를 나타내는 개략 블록도이다.
3: 제 2 절연막 3a: 제 2 절연막 패턴
3b: 잔여 패턴 3c: 지지 패턴
5: 마스크 패턴 7: 개구부
D1: 탄소가 제거된 부분 9: 확산 방지막
10: 도전 패턴 11: 도전막
13: 희생막 15: 캐핑막
23: 제 1 보호막 25: 제 2 보호막
AG: 에어 갭 영역
Claims (20)
- 제 1 영역과 제 2 영역을 포함하는 기판 상에 배치되는 도전 패턴들;
상기 도전 패턴들의 상부면들을 연결하고 상기 도전 패턴들 사이의 에어 갭 영역을 정의하는 캐핑막;
상기 제 1 영역에서 상기 도전 패턴들 사이에 배치되는 잔여 패턴; 및
상기 제 2 영역에서 상기 도전 패턴들 사이에 배치되며 상기 캐핑막 패턴과 접하는 지지 패턴을 포함하되,
상기 지지 패턴은 상기 도전 패턴들의 상부면들 보다 낮은 상부면을 가지고,
상기 잔여 패턴의 하부면과 상기 지지 패턴의 하부면은 같은 높이에 위치하는 반도체 장치. - 제 1 항에 있어서,
상기 제 1 영역에서 상기 도전 패턴들의 간격은 상기 제 2 영역에서 상기 도전 패턴들의 간격보다 좁은 반도체 장치. - 제 1 항에 있어서,
상기 지지 패턴의 측면은 경사진 반도체 장치. - 제 3 항에 있어서,
상기 지지 패턴의 하부 모서리와 이웃하는 상기 도전 패턴들과의 거리는 상기 지지 패턴의 상부 모서리와 이웃하는 상기 도전 패턴들과의 거리보다 좁은 반도체 장치. - 제 1 항에 있어서,
상기 제 2 영역에서 상기 에어 갭 영역은 상기 지지 패턴의 측면과 상기 도전 패턴들의 측면 사이에 배치되는 반도체 장치. - 제 1 항에 있어서,
상기 잔여 패턴의 측면은 경사진 반도체 장치. - 제 1 항에 있어서,
상기 잔여 패턴은 상기 지지 패턴과 동일한 물질로 이루어지는 반도체 장치. - 제 1 항에 있어서,
상기 잔여 패턴은 상기 지지 패턴의 상부면 보다 낮은 상부면을 가지는 반도체 장치. - 제 1 항에 있어서,
상기 도전 패턴과 상기 캐핑막 사이에 배치되는 제 1 보호막; 및
상기 도전 패턴들의 측면을 덮는 제 2 보호막을 더 포함하는 반도체 장치. - 제 9 항에 있어서,
상기 제 1 보호막은 상기 제 2 보호막과 다른 물질인 반도체 장치. - 제 10 항에 있어서,
상기 제 1 보호막은 탄탈륨, 루테늄, 코발트, 망간, 티타늄, 텅스텐, 니켈 및 알루미늄을 포함하는 그룹에서 선택되는 적어도 하나의 금속, 상기 적어도 하나의 금속의 산화막, 질화막 또는 산질화막을 포함하고,
상기 제 2 보호막은 질화실리콘(SiN), 질화탄화실리콘(SiCN) 및 질화붕소(BN)을 포함하는 그룹에서 선택되는 적어도 하나의 물질을 포함하는 반도체 장치. - 제 9 항에 있어서,
상기 제 2 보호막은 연장되어 상기 제 1 보호막의 상부면과 상기 캐핑막 사이에 개재되며 상기 도전 패턴들 사이의 상기 기판을 덮는 반도체 장치. - 제 9 항에 있어서,
상기 제 2 영역에서 상기 제 2 보호막은 상기 지지 패턴의 측면을 덮으며 상기 지지 패턴의 상부면과 상기 캐핑막 사이에 개재되는 반도체 장치. - 제 9 항에 있어서,
상기 제 2 보호막은 상기 잔여 패턴의 측면과 상부면을 덮는 반도체 장치. - 제 1 항에 있어서,
상기 캐핑막은 이산화실리콘(SiO2), 질화실리콘(SiN), 수소탄화산화실리콘(SiOCH), 질화탄화실리콘(SiCN), 질화산화실리콘(SiON)을 포함하는 그룹에서 선택되는 적어도 하나의 물질을 포함하는 반도체 장치. - 제 1 항에 있어서,
상기 기판은 상기 제 1 영역 및 상기 제 2 영역과 이격되는 제 3 영역을 더 포함하며,
상기 도전 패턴들은 상기 제 3 영역에서 상기 기판 상에도 배치되며,
상기 제 3 영역에서 상기 도전 패턴들 사이에는 상기 잔여 패턴과 상기 지지 패턴이 부재하며,
상기 제 1 영역에서 상기 도전 패턴들의 간격은 상기 제 3 영역에서 상기 도전 패턴들의 간격보다 넓되, 상기 제 2 영역에서 상기 도전 패턴들의 간격보다 좁은 반도체 장치. - 제 1 항에 있어서,
상기 지지 패턴은 이산화실리콘(SiO2), 질화실리콘(SiN), 질화탄화실리콘(SiCN), 수소탄화산화실리콘(SiOCH), 다공성-수소탄화산화실리콘(porous-SiOCH)을 포함하는 그룹에서 선택되는 적어도 하나의 물질을 포함하는 반도체 장치. - 제 1 항에 있어서,
상기 제 2 영역에서 상기 지지 패턴에 인접한 도전 패턴들의 간격은 100nm 이상인 반도체 장치. - 제 1 항에 있어서,
상기 캐핑막은 상기 도전 패턴의 상부 측벽을 일부 덮는 반도체 장치. - 제 19 항에 있어서,
상기 도전 패턴의 측벽을 덮는 보호막을 더 포함하되,
상기 캐핑막은 상기 보호막의 상부 측벽을 일부 덮는 반도체 장치.
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JP6356396B2 (ja) | 2018-07-11 |
TW201417144A (zh) | 2014-05-01 |
US9337150B2 (en) | 2016-05-10 |
DE102013109297A1 (de) | 2014-03-13 |
US20160225658A1 (en) | 2016-08-04 |
JP2014053612A (ja) | 2014-03-20 |
CN103681600B (zh) | 2017-12-12 |
TWI588871B (zh) | 2017-06-21 |
CN103681600A (zh) | 2014-03-26 |
US9741608B2 (en) | 2017-08-22 |
US20140061926A1 (en) | 2014-03-06 |
KR20140033579A (ko) | 2014-03-19 |
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