KR20240099127A - 반도체 장치 - Google Patents
반도체 장치 Download PDFInfo
- Publication number
- KR20240099127A KR20240099127A KR1020240080462A KR20240080462A KR20240099127A KR 20240099127 A KR20240099127 A KR 20240099127A KR 1020240080462 A KR1020240080462 A KR 1020240080462A KR 20240080462 A KR20240080462 A KR 20240080462A KR 20240099127 A KR20240099127 A KR 20240099127A
- Authority
- KR
- South Korea
- Prior art keywords
- oxide semiconductor
- layer
- film
- transistor
- semiconductor layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000012535 impurity Substances 0.000 claims abstract description 83
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- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
Classifications
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- H01L29/7869—
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/674—Thin-film transistors [TFT] characterised by the active materials
- H10D30/6755—Oxide semiconductors, e.g. zinc oxide, copper aluminium oxide or cadmium stannate
-
- H01L29/24—
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- H01L29/78696—
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/611—Insulated-gate field-effect transistors [IGFET] having multiple independently-addressable gate electrodes influencing the same channel
- H10D30/615—Insulated-gate field-effect transistors [IGFET] having multiple independently-addressable gate electrodes influencing the same channel comprising a MOS gate electrode and at least one non-MOS gate electrode
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/6757—Thin-film transistors [TFT] characterised by the structure of the channel, e.g. transverse or longitudinal shape or doping profile
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/80—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
Landscapes
- Thin Film Transistor (AREA)
- Semiconductor Memories (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Non-Volatile Memory (AREA)
- Electrodes Of Semiconductors (AREA)
- Physical Vapour Deposition (AREA)
- Semiconductor Integrated Circuits (AREA)
- Formation Of Insulating Films (AREA)
Abstract
캐리어가 흐르는 산화물 반도체층이 게이트 절연막에 접하지 않는 구조로 하기 때문에, 캐리어가 흐르는 산화물 반도체층이 게이트 절연막으로부터 떨어져 있는 매립 채널 구조로 한다. 구체적으로는 2개의 산화물 반도체층 사이에 도전율이 높은 산화물 반도체층을 제공한다. 또한, 자기 정합적으로 불순물 원소를 산화물 반도체층에 첨가하여 전극층과 접촉하는 영역의 저저항화를 도모한다. 또한, 절연막에 접하는 산화물 반도체층의 막 두께를 도전율이 높은 산화물 반도체층보다 두껍게 한다.
Description
도 2a 내지 도 2d는 본 발명의 일 형태를 도시한 공정 단면도.
도 3a는 본 발명의 일 형태를 도시한 단면도이고, 도 3b는 본 발명의 일 형태를 도시한 상면도.
도 4a 및 도 4b는 본 발명의 일 형태를 도시한 단면도이고, 도 4c는 본 발명의 일 형태를 도시한 상면도.
도 5a는 반도체 장치의 일 형태를 도시한 단면도이고, 도 5b는 반도체 장치의 일 형태를 도시한 회로도.
도 6a는 반도체 장치의 일 형태를 도시한 단면도이고, 도 6b 및 도 6c는 반도체 장치의 일 형태를 도시한 회로도.
도 7은 반도체 장치의 일 형태를 도시한 회로도.
도 8은 반도체 장치의 일 형태를 도시한 사시도.
도 9a 내지 도 9c는 반도체 장치의 일 형태를 도시한 블록도.
도 10a 내지 도 10c는 전자 기기를 설명하는 도면.
도 11a 내지 도 11c는 전자 기기를 설명하는 도면.
도 12a는 평판 형상의 스퍼터링 입자의 모식도이고, 도 12b는 성막 중의 모델을 도시한 도면이고, 도 12c는 평판 형상의 스퍼터링 입자의 상태를 도시한 모델도.
도 13a는 성막 중의 모델을 도시한 도면이고, 도 13b는 평판 형상의 스퍼터링 입자의 산소가 방출되는 상태를 도시한 모델도.
도 14a 및 도 14b는 성막 중의 모델을 도시한 도면이고, 도 14c는 평판 형상의 스퍼터링 입자의 상태를 도시한 모델도.
도 15는 반도체 장치의 제작 장치의 일례를 도시한 상면도.
도 16a는 본 발명의 일 형태를 도시한 상면도이고, 도 16b는 본 발명의 일 형태를 도시한 단면도이고, 도 16c는 본 발명의 일 형태를 도시한 모식도.
도 17a 내지 도 17c는 본 발명의 일 형태를 도시한 모식도.
도 18a 내지 도 18d는 본 발명의 일 형태를 도시한 공정 단면도.
도 19a 내지 도 19d는 본 발명의 일 형태를 도시한 공정 단면도.
도 20a 및 도 20c는 본 발명의 일 형태를 도시한 상면도이고, 도 20b, 도 20d 및 도 20e는 본 발명의 일 형태를 도시한 단면도.
도 21a 및 도 21b는 본 발명의 일 형태를 도시한 단면도.
도 22a는 반도체 장치의 일 형태를 도시한 단면도이고, 도 22b는 반도체 장치의 일 형태를 도시한 회로도.
도 23a는 반도체 장치의 일 형태를 도시한 단면도이고, 도 23b 및 도 23c는 반도체 장치의 일 형태를 도시한 회로도.
10b: 스퍼터링 장치
10c: 스퍼터링 장치
11: 기판 공급실
12a: 로드록실
12b: 로드록실
13: 반송실
14: 카세트 포트
15: 기판 가열실
100: 기판
101: 게이트 전극층
102: 게이트 절연층
102a: 게이트 절연층
102b: 게이트 절연층
103a: 영역
103b: 채널 형성 영역
103c: 영역
104a: 영역
104b: 영역
104c: 저저항 영역
105a: 전극층
105b: 전극층
106a: 영역
106b: 영역
107: 질화 실리콘막
108a: 영역
108b: 영역
108c: 저저항 영역
109: 산화물 반도체 적층
111: 층간 절연층
113a: 측벽 절연층
113b: 측벽 절연층
120: 트랜지스터
121: 트랜지스터
122: 트랜지스터
123: 트랜지스터
124: 트랜지스터
130: 트랜지스터
133: 하지 절연층
133a: 하지 절연층
133b: 하지 절연층
136: 하지 절연층
137: 절연막
160: 트랜지스터
162: 트랜지스터
164: 용량 소자
185: 층간 절연막
186: 배리어 금속막
187: 저저항 도전층
188: 배리어 금속막
191: 도전층
400: 기판
401: 게이트 전극층
402: 절연막
402a: 제 1 절연막
402b: 제 2 절연막
403: 산화물 반도체막의 적층
403a: 제 1 산화물 반도체막
403b: 제 2 산화물 반도체막
403c: 제 3 산화물 반도체막
407: 절연막
415: 트랜지스터
416: 트랜지스터
417: 트랜지스터
418: 트랜지스터
433: 절연막
434: 배선층
435: 산화물 절연막
436: 배선층
437: 절연막
438: 전극층
442: 도전층
444: 질화물 절연막
445a: 전극층
445b: 전극층
485: 층간 절연막
486: 배리어 금속막
487: 저저항 도전층
488: 배리어 금속막
491: 도전층
610: 트랜지스터
647: 배선층
657: 배선층
658: 배선층
684: 절연막
686: 절연막
687: 절연막
690: 용량 소자
692: 배선층
693: 용량 전극층
700: 기판
740: 트랜지스터
741: 게이트 전극층
742: 게이트 절연막
743: 채널 형성 영역
744: n형 불순물 영역
745: n형 불순물 영역
746: 측벽 절연층
748: 배선층
750: 트랜지스터
751: 게이트 전극층
752: 게이트 절연막
753: 채널 형성 영역
754: p형 불순물 영역
755: p형 불순물 영역
756: 측벽 절연층
760: 회로
788: 절연막
789: 소자 분리 영역
800: 기판
801: 트랜지스터
802: 트랜지스터
803: 트랜지스터
804: 트랜지스터
811: 트랜지스터
812: 트랜지스터
813: 트랜지스터
814: 트랜지스터
825: 전극층
826: 절연막
830: 절연막
831: 배선층
832: 배선층
833: 절연막
834: 배선층
835: 배선층
842: 전극층
1141: 스위칭 소자
1142: 메모리 셀
1143: 메모리 셀군
1189: ROM 인터페이스
1190: 기판
1191: ALU
1192: ALU 컨트롤러
1193: 인스트럭션 디코더
1194: 인터럽트 컨트롤러
1195: 타이밍 컨트롤러
1196: 레지스터
1197: 레지스터 컨트롤러
1198: 버스 인터페이스
1199: ROM
2000: 기판
2001: 스퍼터링 입자
2002: 스퍼터링 타깃
2003: 챔버
3004: 논리 회로
3170a: 메모리 셀
3170b: 메모리 셀
3400: 메모리 셀 어레이
8000: 텔레비전 장치
8001: 하우징
8002: 표시부
8003: 스피커부
8200: 실내기
8201: 하우징
8202: 송풍구
8203: CPU
8204: 실외기
8300: 전기 냉동 냉장고
8301: 하우징
8302: 냉장실용 문
8303: 냉동실용 문
8304: CPU
9033: 잠금 장치
9034: 스위치
9035: 전원 스위치
9036: 스위치
9038: 조작 스위치
9630: 하우징
9631: 표시부
9631a: 표시부
9631b: 표시부
9632a: 영역
9632b: 영역
9633: 태양 전지
9634: 충방전 제어 회로
9635: 배터리
9636: DCDC 컨버터
9637: 컨버터
9638: 조작키
9639: 버튼
9700: 전기 자동차
9701: 2차 전지
9702: 제어 회로
9703: 구동 장치
9704: 처리 장치
Claims (6)
- 반도체 장치에 있어서,
인듐 및 갈륨을 포함하는 제 1 산화물 반도체층으로서, 상기 제 1 산화물 반도체층은 채널 형성 영역을 포함하는 상기 제 1 산화물 반도체층;
상기 제 1 산화물 반도체층 위의 인듐 및 갈륨을 포함하는 제 2 산화물 반도체층;
상기 제 2 산화물 반도체층 위의 실리콘을 포함하는 게이트 절연층; 및
상기 게이트 절연층 위의 게이트 전극을 포함하고,
상기 제 1 산화물 반도체층 내의 인듐의 함유량은 상기 제 1 산화물 반도체층 내의 갈륨의 함유량보다 높고,
상기 제 2 산화물 반도체층은 상기 게이트 전극과 중첩되지 않고 불순물 원소를 포함하는 영역을 포함하고,
상기 제 2 산화물 반도체층은 상기 제 1 산화물 반도체층의 측면 및 상면을 덮는, 반도체 장치. - 반도체 장치에 있어서,
인듐, 갈륨 및 아연을 포함하는 제 1 산화물 반도체층으로서, 상기 제 1 산화물 반도체층은 채널 형성 영역을 포함하는 상기 제 1 산화물 반도체층;
상기 제 1 산화물 반도체층 위의 인듐, 갈륨 및 아연을 포함하는 제 2 산화물 반도체층;
상기 제 2 산화물 반도체층 위의 실리콘을 포함하는 게이트 절연층;
상기 게이트 절연층 위의 게이트 전극; 및
상기 제 2 산화물 반도체층과 접촉하는 소스 전극 및 드레인 전극을 포함하고,
상기 제 1 산화물 반도체층 내의 인듐의 함유량은 상기 제 1 산화물 반도체층 내의 갈륨의 함유량보다 높고,
상기 제 2 산화물 반도체층은 상기 게이트 전극과 중첩되지 않고 불순물 원소를 포함하는 영역을 포함하고,
상기 제 2 산화물 반도체층은 상기 제 1 산화물 반도체층의 측면 및 상면을 덮고,
상기 소스 전극 및 상기 드레인 전극은 상기 제 1 산화물 반도체층과 접촉하지 않는, 반도체 장치. - 제 1 항 또는 제 2 항에 있어서,
상기 불순물 원소는 인, 붕소, 질소, 비소, 아르곤, 알루미늄 중 적어도 하나인, 반도체 장치. - 제 1 항 또는 제 2 항에 있어서,
상기 제 1 산화물 반도체층 아래의 제 3 산화물 반도체층을 더 포함하는, 반도체 장치. - 제 4 항에 있어서,
상기 제 3 산화물 반도체층은 상기 제 1 산화물 반도체층 및 상기 제 2 산화물 반도체층보다 두꺼운 두께를 갖는, 반도체 장치. - 제 1 항 또는 제 2 항에 있어서,
상기 제 1 산화물 반도체층의 상기 측면은 테이퍼된, 반도체 장치.
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JPJP-P-2012-136438 | 2012-06-15 | ||
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JP2012141373 | 2012-06-22 | ||
JPJP-P-2012-141373 | 2012-06-22 | ||
KR1020220051550A KR20220054782A (ko) | 2012-06-15 | 2022-04-26 | 반도체 장치 |
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US11424368B2 (en) | 2022-08-23 |
JP2024111041A (ja) | 2024-08-16 |
US9153699B2 (en) | 2015-10-06 |
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US20200152796A1 (en) | 2020-05-14 |
JP2019004176A (ja) | 2019-01-10 |
KR20200056370A (ko) | 2020-05-22 |
US20130334533A1 (en) | 2013-12-19 |
US20180323308A1 (en) | 2018-11-08 |
KR20210044198A (ko) | 2021-04-22 |
JP2014027263A (ja) | 2014-02-06 |
JP6403847B2 (ja) | 2018-10-10 |
JP2022173475A (ja) | 2022-11-18 |
US10032926B2 (en) | 2018-07-24 |
JP6864720B2 (ja) | 2021-04-28 |
US9437747B2 (en) | 2016-09-06 |
JP7153105B2 (ja) | 2022-10-13 |
US10483404B2 (en) | 2019-11-19 |
US20160027923A1 (en) | 2016-01-28 |
KR20220054782A (ko) | 2022-05-03 |
US10741695B2 (en) | 2020-08-11 |
JP2021119605A (ja) | 2021-08-12 |
JP2019220699A (ja) | 2019-12-26 |
KR102241183B1 (ko) | 2021-04-16 |
KR102392732B1 (ko) | 2022-04-29 |
KR20130141735A (ko) | 2013-12-26 |
KR102113160B1 (ko) | 2020-05-20 |
US20160359051A1 (en) | 2016-12-08 |
JP6571849B2 (ja) | 2019-09-04 |
US20230141429A1 (en) | 2023-05-11 |
US20210050452A1 (en) | 2021-02-18 |
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