KR101239117B1 - 전력 반도체 패키지 및 그 제조방법 - Google Patents
전력 반도체 패키지 및 그 제조방법 Download PDFInfo
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- KR101239117B1 KR101239117B1 KR1020110035264A KR20110035264A KR101239117B1 KR 101239117 B1 KR101239117 B1 KR 101239117B1 KR 1020110035264 A KR1020110035264 A KR 1020110035264A KR 20110035264 A KR20110035264 A KR 20110035264A KR 101239117 B1 KR101239117 B1 KR 101239117B1
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Abstract
본 발명에 따른 전력 반도체 패키지의 제조방법은, 반도체 칩이 탑재될 제1면과, 제1면과 대향하는 제2면을 갖는 리드프레임을 준비하는 단계와, 리드프레임의 제1면에 반도체 칩을 부착하고 와이어 본딩하는 단계와, 리드프레임을 밀봉하되, 리드프레임의 외부 연결단자를 제외한 나머지 영역을 감싸면서 리드프레임의 제2면의 일부를 노출하는 홈이 형성되도록 봉합수지를 사용하여 리드프레임을 밀봉하는 단계, 및 리드프레임의 제2면의 일부를 노출하는 홈을 세라믹으로 충진하여, 그 일면은 리드프레임의 제2면에 접촉하고 다른 면은 패키지 외부로 노출되는 방열판을 형성하는 단계를 포함한다.
Description
도 2는 종래의 다른 기술에 의한 전력 반도체 패키지를 설명하기 위하여 도시한 단면도이다.
도 3a 및 도 3b는 본 발명의 일 실시예에 따른 전력 반도체 패키지를 설명하기 위하여 도시한 입체도 및 단면도이다.
도 4 내지 도 7은 도 3a 및 도 3b에 도시된 본 발명의 전력 반도체 패키지를 제조하는 일 실시예의 방법을 설명하기 위하여 도시한 단면도들이다.
도 8 내지 도 9는 도 3a 및 도 3b에 도시된 전력 반도체 패키지를 제조하는 다른 실시예의 방법을 설명하기 위하여 도시한 단면도들이다.
도 10a 및 도 10b는 본 발명의 다른 실시예에 따른 전력 반도체 패키지를 설명하기 위하여 도시한 입체도 및 단면도이다.
도 11 내지 도 13은 본 발명의 다른 실시예에 따른 전력 반도체 패캐지를 제조하는 방법을 설명하기 위하여 도시한 단면도들이다.
도 14a 및 도 14b는 본 발명의 패키지 제조방법을 응용한 예를 설명하기 위한 도면들이다.
120, 220.....반도체 칩 125, 225, 226, 227..와이어
130, 230, 330.....방열판 140, 240, 340.....봉합 수지(EMC)
150, 250.....패키지 바디
Claims (16)
- 반도체 칩;
상기 반도체 칩이 부착되는 제1면과, 상기 제1면과 대향하는 제2면을 갖는 리드프레임;
상기 반도체 칩이 탑재된 리드프레임의 외부 연결 단자를 제외한 나머지 부분을 감싸면서, 상기 리드프레임의 제2면의 일부를 노출하는 홈을 갖는 봉합 수지; 및
상기 봉합 수지의 홈을 평평하게 채우면서 상기 리드프레임의 중앙부를 포함하는 영역에 배치되며, 그 일면은 상기 리드프레임의 제2면과 직접 접촉하고 다른 면은 패키지 외부로 노출된 세라믹 방열판을 포함하는 것을 특징으로 하는 반도체 패키지. - 삭제
- 제1항에 있어서,
상기 방열판의 두께는 0.05 ∼ 0.25㎜의 범위인 것을 특징으로 하는 반도체 패키지. - 다수개의 반도체 칩들;
각각 상기 반도체 칩이 부착되는 제1면과, 상기 제1면과 대향하는 제2면을 가지며 수평으로 배열된 다수의 리드프레임들;
상기 반도체 칩이 탑재된 리드프레임의 외부 연결 단자를 제외한 나머지 부분을 감싸면서, 상기 리드프레임의 제2면을 노출하는 홈을 갖는 봉합 수지; 및
상기 봉합 수지의 홈을 평평하게 채우며, 그 일면은 상기 리드프레임들의 제2면 전체와 직접 접촉하고 다른 면은 패키지 외부로 노출되도록 배치된 세라믹 방열판을 포함하는 것을 특징으로 하는 반도체 패키지. - 삭제
- 제4항에 있어서,
상기 방열판의 두께는 0.05 ∼ 0.25㎜의 범위인 것을 특징으로 하는 반도체 패키지. - (a) 서로 대향하는 제1면과 제2면을 갖는 리드프레임을 준비하는 단계;
(b) 상기 리드프레임의 제1면에 반도체 칩을 부착하고 와이어 본딩하는 단계;
(c) 상기 리드프레임을 밀봉하되, 상기 리드프레임의 외부 연결단자를 제외한 나머지 영역을 감싸면서 상기 리드프레임의 제2면의 일부를 노출하는 홈이 형성되도록 봉합수지를 사용하여 상기 리드프레임을 밀봉하는 단계; 및
(d) 상기 홈에 세라믹 페이스트를 충진한 후 충진된 세라믹 페이스트를 큐어링하여 경화시켜, 그 일면은 상기 리드프레임의 제2면에 접촉하고 다른 면은 패키지 외부로 노출되는 방열판을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 패키지의 제조방법. - 제7항에 있어서,
상기 봉합수지를 사용하여 리드프레임을 밀봉하는 단계에서,
상기 홈의 깊이는 0.05 ∼ 0.25㎜의 범위인 것을 특징으로 하는 반도체 패키지의 제조방법. - 삭제
- 제7항에 있어서,
상기 (d) 단계에서, 상기 홈에 세라믹 페이스트를 충진할 때 스크린 프린팅 방식 또는 스프레잉 방식으로 진행하는 것을 특징으로 하는 반도체 패키지의 제조방법. - (a) 반도체 칩이 탑재될 제1면과, 상기 제1면과 대향하는 제2면을 갖는 리드프레임을 준비하는 단계;
(b) 상기 리드프레임의 제2면에 세라믹 페이스트를 코팅하는 단계;
(c) 상기 리드프레임의 제1면에 반도체 칩을 부착하고 와이어 본딩하는 단계;
(d) 상기 리드프레임을 밀봉하되, 상기 리드프레임의 외부 연결단자를 제외한 나머지 영역을 감싸면서 상기 리드프레임의 제2면의 일부를 노출하는 홈이 형성되도록 봉합수지를 사용하여 상기 리드프레임을 밀봉하는 단계; 및
(e) 상기 홈에 세라믹 페이스트를 충진한 후 충진된 세라믹 페이스트를 큐어링하여 경화시켜, 그 일면은 상기 리드프레임의 제2면에 접촉하고 다른 면은 패키지 외부로 노출되는 방열판을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 패키지의 제조방법. - 제11항에 있어서,
상기 리드프레임을 밀봉하는 단계에서,
상기 홈의 깊이는 0.05 ∼ 0.25㎜의 범위가 되도록 하는 것을 특징으로 하는 반도체 패키지의 제조방법. - 삭제
- 제11항에 있어서,
상기 (e) 단계에서, 상기 홈에 세라믹 페이스트를 충진할 때, 스크린 프린팅 방식 또는 스프레잉 방식으로 진행하는 것을 특징으로 하는 반도체 패키지의 제조방법. - 방열판의 일부가 외부로 노출된 반도체 패키지를 준비하는 단계;
상기 방열판의 노출된 표면에 세라믹 페이스트를 스프레이(spray)하여 상기 방열판의 노출된 표면에 세라믹을 코팅하는 단계; 및
상기 세라믹을 경화시켜 방열판을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 패키지의 제조방법.
- 삭제
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KR100867573B1 (ko) * | 2001-06-11 | 2008-11-10 | 페어차일드코리아반도체 주식회사 | 열방출 능력이 개선된 전력용 모듈 패키지 및 그 제조 방법 |
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KR100867573B1 (ko) * | 2001-06-11 | 2008-11-10 | 페어차일드코리아반도체 주식회사 | 열방출 능력이 개선된 전력용 모듈 패키지 및 그 제조 방법 |
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