KR102181706B1 - 반도체 칩의 제조 방법 - Google Patents
반도체 칩의 제조 방법 Download PDFInfo
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- KR102181706B1 KR102181706B1 KR1020180025158A KR20180025158A KR102181706B1 KR 102181706 B1 KR102181706 B1 KR 102181706B1 KR 1020180025158 A KR1020180025158 A KR 1020180025158A KR 20180025158 A KR20180025158 A KR 20180025158A KR 102181706 B1 KR102181706 B1 KR 102181706B1
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- semiconductor chip
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- micro bump
- bump
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- H01L2224/81009—Pre-treatment of the bump connector or the bonding area
- H01L2224/81048—Thermal treatments, e.g. annealing, controlled pre-heating or pre-cooling
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Abstract
Description
도 2는 반도체 칩을 포함하는 반도체 패키지의 제조 방법의 순서를 나타낸 흐름도이다.
도 3a 및 도 3b는 반도체 칩을 적층시키고 있는 모양을 도시한 개략적인 단면도이다.
도 4a는 반도체 칩을 적층시키고 있는 모양을 도시한 개략적인 단면도이며, 도 4b는 반도체 칩끼리를 접합한 모양을 도시한 개략적인 단면도이다.
도 5는 평활면 형성 공정을 실행하기 전의 마이크로 범프, 및 평활면 형성 공정을 실행한 후의 마이크로 범프를 도시한 개략적인 단면도이다.
도 6은 평활면 형성 공정(보이드 제거 공정)의 순서를 나타낸 흐름도이다.
도 7a 내지 도 7g는 평활면 형성 공정(보이드 제거 공정)의 순서를 도시한 개략적인 단면도이다.
도 8a 내지 도 8g는 변형예에 따른 평활면 형성 공정(보이드 제거 공정)의 순서를 도시한 개략적인 단면도이다.
도 9는 가열로 내의 온도와 압력의 프로파일을 나타낸 그래프이다.
도 10은 실시예 및 비교예의 시험 결과를 기재한 표이다.
Claims (4)
- 기판과, 상기 기판 위에 형성된 도전부와, 상기 도전부에 형성된 마이크로 범프를 갖는 반도체 칩의 제조 방법으로서,
상기 반도체 칩이 배치된 공간에 대하여 불활성 분위기 내에서 환원성 가스를 유입시키고, 상기 마이크로 범프의 융점 이상의 온도로 가열하는 가열 공정으로서, 상기 가열 공정에서는 상기 마이크로 범프 위에 압력 부여 부재가 올려져 있는, 상기 가열 공정; 및
상기 가열 공정 후에, 상기 압력 부여 부재를 상기 마이크로 범프 위로부터 제거하는 공정을 구비하는, 반도체 칩의 제조 방법. - 제 1 항에 있어서,
상기 환원성 가스로서 카복실산이 적용되는, 반도체 칩의 제조 방법. - 제 1 항에 있어서,
상기 압력 부여 부재 중량은 상기 마이크로 범프의 단면적당, 0.0005㎍/㎛2 이상, 0.1㎍/㎛2 이하인, 반도체 칩의 제조 방법. - 제 1 항에 있어서,
상기 기판 위에 일정한 두께를 갖는 스페이서를 배치하고, 상기 압력 부여 부재는 상기 스페이서와 접촉할 때까지 밀어 넣어지는, 반도체 칩의 제조 방법.
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US15/449,361 US10163847B2 (en) | 2017-03-03 | 2017-03-03 | Method for producing semiconductor package |
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