KR102777027B1 - 반도체 장치 및 반도체 장치의 제조 방법 - Google Patents
반도체 장치 및 반도체 장치의 제조 방법 Download PDFInfo
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- KR102777027B1 KR102777027B1 KR1020227028027A KR20227028027A KR102777027B1 KR 102777027 B1 KR102777027 B1 KR 102777027B1 KR 1020227028027 A KR1020227028027 A KR 1020227028027A KR 20227028027 A KR20227028027 A KR 20227028027A KR 102777027 B1 KR102777027 B1 KR 102777027B1
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Abstract
Description
도 2는 본 발명의 실시양태에 있어서 호적하게 사용되는 할라이드 기상 성장(HVPE) 장치를 설명하는 도면이다.
도 3은 본 발명의 실시양태에 있어서 호적하게 사용되는 결정성의 기체의 표면 상에 형성된 요철부의 일 양태를 나타내는 모식도이다.
도 4는 본 발명의 실시양태에 있어서 호적하게 사용되는 미스트 CVD 장치를 설명하는 도면이다.
도 5는 전원 시스템의 일례를 모식적으로 나타내는 도면이다.
도 6은 시스템 장치의 일례를 모식적으로 나타내는 도면이다.
도 7은 전원 장치의 전원 회로도의 일례를 모식적으로 나타내는 도면이다.
도 8은 리드 프레임, 회로 기판, 또는 방열 기판과 접합된 반도체 장치의 일례를 모식적으로 나타내는 도면이다.
도 9는 파워 카드의 일례를 모식적으로 나타내는 도면이다.
도 10은 본 발명의 실시예에 있어서의 TEM상을 나타낸다.
도 11은 본 발명의 실시양태로서, 반도체 장치의 일례의 요부를 나타낸다.
도 12는 본 발명의 실시양태로서, 반도체 장치의 일례의 요부를 나타낸다.
도 13은 본 발명의 실시양태로서, 반도체 장치(SBD)의 단면도를 나타낸다.
도 14는 본 발명의 실시양태로서, 반도체 장치(JBS)의 단면도를 나타낸다.
도 15a는 본 발명의 실시양태로서, 반도체 장치의 제조 공정의 일부를 나타내는 개략 설명도이다.
도 15b는 본 발명의 실시양태로서, 반도체 장치의 제조 공정의 일부를 나타내는 개략 설명도이다.
도 16a는 본 발명의 실시양태로서, 반도체 장치의 제조 공정의 일부를 나타내는 개략 설명도이다.
도 16b는 본 발명의 실시양태로서, 반도체 장치의 제조 공정으로부터 얻어지는 적층 구조체의 단면도를 나타낸다.
도 17a는 본 발명의 실시양태로서, 반도체 장치의 제조 공정으로부터 얻어지는 적층 구조체의 단면도를 나타낸다.
도 17b는 본 발명의 실시양태로서, 반도체 장치의 제조 공정으로부터 얻어지는 적층 구조체의 단면도를 나타낸다.
도 17c는 본 발명의 실시양태로서, 반도체 장치의 제조 공정으로부터 얻어지는 반도체 장치의 일례로서 단면도를 나타낸다.
1a 기판의 표면(결정 성장면)
2 마스크
2a 마스크
3 결정층(버퍼층)
5 마스크(기판 상)
8 결정 성장층(반도체층)
11 기판
12 제2 반도체층
12B 오믹 접합 영역
13 제1 반도체층
13B 쇼트키 접합 영역
14 전극(게이트 전극)
15 유전체막(게이트 절연막)
18 반도체층(채널층)
18a n-형 반도체층
18b n+형 반도체층
19 미스트 CVD 장치
20 피성막 시료
21 시료대
22a 캐리어 가스원
22b 캐리어 가스(희석)원
23a 유량 조절 밸브
23b 유량 조절 밸브
24 미스트 발생원
24a 원료 용액
24b 미스트
25 용기
25a 물
26 초음파 진동자
27 성막실
28 히터
32 쇼트키 전극
33 p형 반도체 영역
35 오믹 전극
36 트렌치
50 할라이드 기상 성장(HVPE) 장치
51 반응실
52a 히터
52b 히터
53a 할로겐 함유 원료 가스 공급원
53b 금속 함유 원료 가스 공급관
54a 반응성 가스 공급원
54b 반응성 가스 공급관
55a 산소 함유 원료 가스 공급원
55b 산소 함유 원료 가스 공급관
56 기판 홀더
57 금속원
58 보호 시트
59 가스 배출부
100 반도체 장치
110 결정성의 기체
120 제1 결정 성장층
120A a축 방향으로 수속시킨 전위 밀도가 높은 성장 영역
120A' a축 방향으로 수속시킨 전위 밀도가 높은 성장 영역의 제거 후
120a 제1 결정 성장층의 상면
120B 마스크층(2) 상에 위치하는 제1 결정 성장층(120)의 결정 성장 영역
123 반도체막
130 제2 결정 성장층
130B 제2 결정 성장층의 결정 성장 영역
170 전원 시스템
171 전원 장치
172 전원 장치
173 제어 회로
180 시스템 장치
181 전자 회로
182 전원 시스템
192 인버터
193 트랜스
194 정류 MOSFET
195 DCL
196 PWM 제어 회로
197 전압 비교기
200 반도체 장치
201 양면 냉각형 파워 카드
202 냉매 튜브
203 스페이서
208 절연판(절연 스페이서)
209 봉지 수지부
221 격벽
222 유로
301a 반도체칩
302b 금속 전열판(돌출 단자부)
303 히트 싱크 및 전극
303b 금속 전열판(돌출 단자부)
304 땜납층
305 제어 전극 단자
308 본딩 와이어
500 반도체 소자
501 땜납
502 리드 프레임, 회로 기판 또는 방열 기판
Claims (24)
- 쇼트키 접합 영역과, 오믹 접합 영역을 포함하는 반도체막과, 상기 반도체막의 상기 쇼트키 접합 영역 상에 배치된 쇼트키 전극과, 상기 오믹 접합 영역 상에 배치된 오믹 전극을 포함하는 반도체 장치로서,
상기 반도체막은 갈륨을 포함하는 산화물 반도체이고, 상기 오믹 전극은 상기 반도체막의 c축 방향으로 연장되어 있고, 상기 반도체막의 쇼트키 접합 영역의 전위 밀도가, 상기 반도체막의 오믹 접합 영역의 전위 밀도보다 작은 것을 특징으로 하는 반도체 장치. - 제1항에 있어서,
상기 반도체막이, 상기 쇼트키 접합 영역을 포함하는 제1 반도체층과, 상기 오믹 접합 영역을 포함하는 제2 반도체층을 포함하는, 반도체 장치. - 제2항에 있어서,
상기 제2 반도체층이 n+형 반도체층인, 반도체 장치. - 제2항 또는 제3항에 있어서,
상기 제1 반도체층이 n-형 반도체층인, 반도체 장치. - 제2항 또는 제3항에 있어서,
상기 제1 반도체층이 적어도 하나의 트렌치를 갖고 있는, 반도체 장치. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 반도체막이, 가로 방향 성장 영역을 포함하는 반도체 장치. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 반도체막의 두께가 1 μm 이상인, 반도체 장치. - 제2항 또는 제3항에 있어서,
상기 제2 반도체층이 커런덤 구조를 갖는, 반도체 장치. - 제2항 또는 제3항에 있어서,
상기 제2 반도체층이 적어도 갈륨을 포함하는, 반도체 장치. - 제2항 또는 제3항에 있어서,
상기 제1 반도체층이 적어도 갈륨을 포함하는, 반도체 장치. - 제2항 또는 제3항에 있어서,
상기 제1 반도체층이 p형의 반도체 영역을 포함하고 있는, 반도체 장치. - 제1항 내지 제3항 중 어느 한 항에 있어서,
파워 디바이스인 반도체 장치. - 제1항 내지 제3항 중 어느 한 항에 있어서,
쇼트키 배리어 다이오드(SBD)인 반도체 장치. - 제1항 내지 제3항 중 어느 한 항에 있어서,
정션 배리어 쇼트키(JBS) 다이오드인 반도체 장치. - 반도체 장치를 구비하는 반도체 시스템으로서, 상기 반도체 장치가, 제1항 내지 제3항 중 어느 한 항에 기재된 반도체 장치인 것을 특징으로 하는 반도체 시스템.
- 결정 기판 상에, 상기 결정 기판 c축 방향을 길이 방향으로 하여 마스크를 배치하는 것, 상기 마스크가 배치된 결정성 기판 상에, 갈륨을 포함하는 산화물 반도체인 반도체막을 결정 성장시키는 것을 포함하는 반도체 장치의 제조 방법.
- 결정 기판 상에 형성된 결정층 상에, 상기 결정 기판 c축 방향을 길이 방향으로 하여 마스크를 배치하는 것, 상기 마스크가 배치된 결정층 상에, 갈륨을 포함하는 산화물 반도체인 반도체막을 결정 성장시키는 것을 포함하는 반도체 장치의 제조 방법.
- 제16항 또는 제17항에 있어서,
상기 마스크가 전극 재료를 포함하고 있는, 제조 방법. - 제16항 또는 제17항에 있어서,
상기 마스크가 유전체 재료를 포함하고 있는, 제조 방법. - 제16항 또는 제17항에 있어서,
상기 결정 기판의 a축 방향으로 전위를 수속시키는 것을 포함하는 제조 방법. - 제16항 또는 제17항에 있어서,
적어도 상기 결정 기판을 제거하는 것을 포함하는, 제조 방법. - 제16항 또는 제17항에 있어서,
적어도 상기 결정 기판과 상기 마스크를 제거하는 것을 포함하는, 제조 방법. - 제17항에 있어서,
적어도 상기 결정 기판과 상기 결정층을 제거하는 것을 포함하는, 제조 방법. - 제17항에 있어서,
상기 결정층은, 미스트 CVD법에 의해 상기 결정 기판 상에 형성되는, 제조 방법.
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| KR102853825B1 (ko) | 2023-07-19 | 2025-09-02 | 주식회사 인터포 | 이미지 코드 기반의 통합 여행 서비스 제공 방법, 프로그램 및 장치 |
| CN119140997B (zh) * | 2024-09-14 | 2025-10-10 | 吉林大学 | 一种基于激光表面处理的异种材料高质量搭接焊方法 |
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| TW202147455A (zh) | 2021-12-16 |
| EP4098781A4 (en) | 2024-05-15 |
| JPWO2021153609A1 (ko) | 2021-08-05 |
| US20220367674A1 (en) | 2022-11-17 |
| WO2021153609A1 (ja) | 2021-08-05 |
| KR20220127301A (ko) | 2022-09-19 |
| US12432947B2 (en) | 2025-09-30 |
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