KR102673421B1 - 반도체 패키지의 제조 방법 - Google Patents
반도체 패키지의 제조 방법 Download PDFInfo
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- KR102673421B1 KR102673421B1 KR1020190106468A KR20190106468A KR102673421B1 KR 102673421 B1 KR102673421 B1 KR 102673421B1 KR 1020190106468 A KR1020190106468 A KR 1020190106468A KR 20190106468 A KR20190106468 A KR 20190106468A KR 102673421 B1 KR102673421 B1 KR 102673421B1
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Abstract
(해결 수단) 반도체 패키지의 제조 방법은, 상면측으로부터 적어도 배선 기판에 구비되는 그라운드 라인을 가공 홈 내에 노출시키는 깊이 이상이고 반도체 패키지 기판을 완전 절단하지 않는 깊이까지 분할 예정 라인을 따라 제 1 절삭 블레이드로 절입하여, 봉지제의 적어도 상면에 제 1 폭을 갖는 가공 홈을 형성하는 홈 형성 공정과, 봉지제측 상방으로부터 도전성 재료로, 가공 홈의 측면 및 가공 홈의 바닥면 및 봉지제 상면에 실드층을 형성하는 실드층 형성 공정과, 실드층 형성 공정을 실시한 후에, 제 2 절삭 블레이드에 의해 가공 홈을 따라 측면에 형성된 실드층을 제거하지 않는 폭으로 절입하여, 반도체 패키지 기판을 분할하는 분할 공정을 포함한다.
Description
도 2 는, 제 1 실시형태에 관련된 반도체 패키지의 제조 방법에 의해 반도체 패키지로 분할되는 반도체 패키지 기판의 일부를 나타내는 평면도이다.
도 3 은, 도 2 중의 III-III 선을 따른 단면도이다.
도 4 는, 제 1 실시형태에 관련된 반도체 패키지의 제조 방법의 흐름을 나타내는 플로 차트이다.
도 5 는, 도 4 에 나타낸 반도체 패키지의 제조 방법의 홈 형성 공정에 있어서 다이싱 테이프로 반도체 패키지 기판을 지지한 상태를 모식적으로 나타내는 단면도이다.
도 6 은, 도 4 에 나타낸 반도체 패키지의 제조 방법의 홈 형성 공정을 모식적으로 나타내는 단면도이다.
도 7 은, 도 4 에 나타낸 반도체 패키지의 제조 방법의 홈 형성 공정 후의 반도체 패키지 기판을 모식적으로 나타내는 단면도이다.
도 8 은, 도 4 에 나타낸 반도체 패키지의 제조 방법의 홈 형성 공정에 있어서 스퍼터 테이프로 반도체 패키지 기판을 지지한 상태를 모식적으로 나타내는 단면도이다.
도 9 는, 도 4 에 나타낸 반도체 패키지의 제조 방법의 실드층 형성 공정 후의 반도체 패키지 기판을 모식적으로 나타내는 단면도이다.
도 10 은, 도 4 에 나타낸 반도체 패키지의 제조 방법의 분할 공정을 모식적으로 나타내는 단면도이다.
도 11 은, 도 4 에 나타낸 반도체 패키지의 제조 방법의 분할 공정 후의 반도체 패키지 기판을 모식적으로 나타내는 단면도이다.
도 12 는, 제 2 실시형태에 관련된 반도체 패키지의 제조 방법의 홈 형성 공정에 있어서 다이싱 테이프로 반도체 패키지 기판을 지지한 상태를 모식적으로 나타내는 단면도이다.
도 13 은, 제 2 실시형태에 관련된 반도체 패키지의 제조 방법의 분할 공정을 모식적으로 나타내는 단면도이다.
도 14 는, 제 2 실시형태에 관련된 반도체 패키지의 제조 방법의 분할 공정 후의 반도체 패키지 기판을 모식적으로 나타내는 단면도이다.
2 : 배선 기판
3 : 반도체 칩
4 : 땜납 볼
6 : 봉지제
7 : 실드층
9 : 가공 홈
10 : 반도체 패키지 기판
11 : 분할 예정 라인
21 : 상면
22 : 하면
61 : 상면
91 : 제 1 폭
92 : 바닥면
93 : 제 2 폭
94 : 측면
101 : 제 1 절삭 블레이드 (제 1 절삭 수단)
111 : 제 2 절삭 블레이드 (제 2 절삭 수단)
ST1 : 홈 형성 공정
ST2 : 실드층 형성 공정
ST3 : 분할 공정
Claims (2)
- 교차하는 복수의 분할 예정 라인으로 구획된 배선 기판의 상면에 복수의 반도체 칩이 마운트되고, 그 배선 기판의 하면에 복수의 땜납 볼이 마운트되고, 양면이 봉지제에 의해 봉지된 반도체 패키지 기판을 그 복수의 분할 예정 라인을 따라 분할하여 반도체 패키지를 제조하는 반도체 패키지의 제조 방법으로서,
그 배선 기판의 상면측으로부터 적어도 그 배선 기판에 구비되는 그라운드 라인을 가공 홈 내에 노출시키는 깊이 이상이고 그 반도체 패키지 기판을 완전 절단하지 않는 깊이까지 그 복수의 분할 예정 라인을 따라 제 1 절삭 수단으로 절입하여, 그 봉지제의 적어도 상면에 제 1 폭을 갖는 가공 홈을 형성하는 홈 형성 공정과,
그 홈 형성 공정을 실시한 후, 그 봉지제측 상방으로부터 도전성 재료로, 그 가공 홈의 측면 및 그 가공 홈의 바닥면 및 그 봉지제 상면에 실드층을 형성하는 실드층 형성 공정과,
그 실드층 형성 공정을 실시한 후에, 제 2 절삭 수단에 의해 그 가공 홈을 따라 그 가공 홈의 측면에 형성된 실드층을 제거하지 않는 폭으로 절입하여, 그 반도체 패키지 기판을 분할하는 분할 공정을 구비하는 것을 특징으로 하는, 반도체 패키지의 제조 방법. - 제 1 항에 있어서,
그 홈 형성 공정에 있어서,
그 가공 홈은, 상면의 제 1 폭이 바닥면의 제 2 폭보다 크고 그 가공 홈의 측면에는 경사가 형성되어 있는 것을 특징으로 하는, 반도체 패키지의 제조 방법.
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