KR101127516B1 - 반도체 장치 및 그 제조 방법 - Google Patents
반도체 장치 및 그 제조 방법 Download PDFInfo
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- KR101127516B1 KR101127516B1 KR1020110063591A KR20110063591A KR101127516B1 KR 101127516 B1 KR101127516 B1 KR 101127516B1 KR 1020110063591 A KR1020110063591 A KR 1020110063591A KR 20110063591 A KR20110063591 A KR 20110063591A KR 101127516 B1 KR101127516 B1 KR 101127516B1
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Abstract
반도체 기판(10a) 상에 복수의 수지층(20~23)이 적층하여 절연층이 형성되고, 전자회로에 접속하도록 절연층 내에 매립되어 배선층(30~35)이 형성되며, 절연층 상에 실장기판에 실장되었을 때에 발생하는 응력을 완화하는 절연성의 버퍼층(24)이 형성되고, 버퍼층을 관통하여 배선층에 접속하여 도전성 포스트(36)가 형성되며, 버퍼층의 표면으로부터 돌출하도록 도전성 포스트에 접속하여 돌기전극(37)이 형성되어 있다. 여기서, 절연층을 구성하는 수지층(20~23)은 반도체 기판(10a)의 외주부를 제외한 영역에 대하여 형성되고, 또한, 버퍼층(24)은 복수의 수지층(20~23) 중 최대의 면적으로 설치된 수지층의 형성 영역을 넘지 않는 영역에 대하여 형성되어 있다.
Description
도 2(a) ~ (c)는 본 발명의 실시 형태와 관련되는 반도체 장치의 제조 공정을 나타내는 단면도이다.
도 3(a) ~ (c)는 본 발명의 실시 형태와 관련되는 반도체 장치의 제조 공정을 나타내는 단면도이다.
도 4(a) ~ (c)는 본 발명의 실시 형태와 관련되는 반도체 장치의 제조 공정을 나타내는 단면도이다.
도 5(a) ~ (c)는 본 발명의 실시 형태와 관련되는 반도체 장치의 제조 공정을 나타내는 단면도이다.
도 6(a) ~ (c)는 본 발명의 실시 형태와 관련되는 반도체 장치의 제조 공정을 나타내는 단면도이다.
도 7(a)는 인쇄용 마스크를 반도체 웨이퍼에 위치를 맞추어서 배치하는 공정의 단면도이고, 도 7(b)는 인쇄용 마스크의 사시도이며, 도 7(c)는 인쇄용 마스크를 이용하여 버퍼층을 인쇄하여 형성하는 공정을 나타내는 단면도이다.
도 8(a) 및 도 8(b)는 본 발명의 실시 형태와 관련되는 반도체 장치의 제조 공정을 나타내는 단면도이다.
도 9(a) 및 도 9(b)는 본 발명의 실시 형태와 관련되는 반도체 장치의 제조 공정을 나타내는 단면도이다.
도 10(a) 및 도 10(b)는 본 발명의 실시 형태의 변형예와 관련되는 반도체 장치의 제조 공정을 나타내는 단면도이다.
도 11(a) 및 도 11(b)는 종래예와 관련되는 반도체 장치의 제조 공정을 나타내는 단면도이다.
도 12(a) 및 도 12(b)는 종래예와 관련되는 반도체 장치의 제조 공정을 나타내는 단면도이다.
도 13은 종래예와 관련되는 반도체 장치의 제조 공정을 나타내는 단면도이다.
20. 제 1수지층 21. 제 2수지층
22. 제 3수지층 23. 제 4수지층
24. 버퍼층 30, 31. 제 1배선층
32, 33. 제 2배선층 34, 35. 제 3배선층
36. 도전성 포스트 37. 범프
SL. 스크라이브 라인 VH. 비아 홀
R1. 제 1레지스트막 R2. 제 2레지스트막
MK. 메탈 마스크 SC. 메쉬 스크린
SQ. 스퀴지 RS. 수지재료
B. 다이싱 블레이드
Claims (14)
- 전자회로가 설치된 반도체를 포함하여 패키지화되며, 실장기판에 실장되어 이용되는 반도체 장치의 제조방법에 있어서,
반도체 웨이퍼의 표면에, 스크라이브 라인을 포함하지 않는 영역에 있어서, 복수의 수지층이 적층한 절연층과, 상기 전자회로에 접속하도록 상기 절연층 내에 매립된 배선층을 형성하는 공정과,
상기 절연층상에 있어서 상기 배선층에 접속하는 도전성 포스트를 형성하는 공정과,
상기 도전성 포스트의 외주부에 있어서 상기 복수의 수지층 중 최대의 면적으로 설치된 수지층의 형성 영역을 넘지 않는 영역에 있어서의 상기 절연층상에, 상기 반도체 장치가 상기 실장기판에 실장되었을 때에 발생하는 응력을 완화하는 절연성의 버퍼층을 형성하는 공정과,
상기 스크라이브 라인에 있어서 상기 기판을 절단하는 공정을 가지는 것을 특징으로 하는 반도체 장치의 제조방법. - 제 1항에 있어서,
상기 버퍼층을 형성하는 공정에 있어서, 상기 복수의 수지층 중 최상층의 수지층의 외주부를 포함하지 않는 영역에 있어서 상기 최상층의 수지층상에 상기 버퍼층을 형성하는 것을 특징으로 하는 반도체 장치의 제조방법. - 제 2항에 있어서,
상기 버퍼층을 형성하는 공정에 있어서, 상기 최상층의 수지층의 외주부의 적어도 폭 20㎛의 영역을 포함하지 않는 영역에 있어서 상기 버퍼층을 형성하는 것을 특징으로 하는 반도체 장치의 제조방법. - 제 1항에 있어서,
상기 절연층을 형성하는 공정에 있어서, 상기 기판으로부터 멀어지는 것에 따라 형성되어 있는 면적이 상기 기판의 상면의 면적으로부터 서서히 작아지고, 상기 수지층의 각층의 측면과 상면 및 상기 기판의 상면으로부터 계단 모양이 되도록 형성하는 것을 특징으로 하는 반도체 장치의 제조방법. - 제 1항에 있어서,
상기 버퍼층을 형성하는 공정에 있어서, 인쇄용 마스크와 가압 스퀴지를 이용한 인쇄법에 의해 형성하는 것을 특징으로 하는 반도체 장치의 제조방법. - 제 5항에 있어서,
상기 버퍼층을 형성하는 공정에 있어서, 상기 인쇄용 마스크로서 두께 0 ~ 10㎛의 메쉬 스크린과 상기 버퍼층의 막 두께에 상당하는 두께의 메탈 마스크를 조합한 인쇄용 마스크를 이용하는 것을 특징으로 하는 반도체 장치의 제조방법. - 제 6항에 있어서,
상기 버퍼층을 형성하는 공정에 있어서, 상기 메탈 마스크로서, 제 1의 방향으로 연장하는 복수의 제 1의 메탈 마스크와 상기 제 1의 메탈 마스크와 직교하여 연장하는 복수의 제 2의 메탈 마스크를 포함하는 마스크를 이용하고,
상기 제 1의 메탈 마스크 및 제 2의 메탈 마스크의 연장 방향에 대하여 45°의 각도로 교차하는 방향으로 상기 마스크 상에서 스퀴지를 접동시켜 인쇄하는 것을 특징으로 하는 반도체 장치의 제조방법. - 제 5항에 있어서,
상기 버퍼층을 형성하는 공정이, 상기 기판에 설치된 4점의 얼라인먼트 마크를 기준으로서 상기 기판과 상기 마스크를 위치 맞춤하는 공정을 포함하는 것을 특징으로 하는 반도체 장치의 제조방법. - 제 1항에 있어서,
상기 버퍼층을 형성하는 공정에 있어서, 점도가 다른 버퍼층 재료를 2회 이상 인쇄하여 형성하는 것을 특징으로 하는 반도체 장치의 제조방법. - 제 9항에 있어서,
상기 버퍼층을 형성하는 공정이, 저점도의 버퍼층 재료를 인쇄하는 공정과, 상기 저점도의 버퍼층 재료의 인쇄 후에 고점도 버퍼층 재료를 인쇄하는 공정을 포함하는 것을 특징으로 하는 반도체 장치의 제조방법. - 제 1항에 있어서,
상기 버퍼층을 형성하는 공정이, 프리베이크 처리로서, 상기 버퍼층으로부터의 용매의 기화를 방해한 상태로 행하는 프리베이크 처리를 포함하는 것을 특징으로 하는 반도체 장치의 제조방법. - 제 11항에 있어서,
상기 프리베이크 처리가, 상기 반도체 웨이퍼 전체를 가리도록 덮개를 한 상태로 행하는 프리베이크 처리를 포함하는 것을 특징으로 하는 반도체 장치의 제조방법. - 제 1항에 있어서,
상기 기판으로서, 상기 전자회로가 설치되어 있는 반도체 기판을 이용하는 것을 특징으로 하는 반도체 장치의 제조방법. - 제 1항에 있어서,
상기 절연층을 형성하는 공정이, 상기 절연층 내에 상기 배선층에 접속하도록 상기 전자회로가 설치된 반도체칩을 매립하는 공정을 포함하는 것을 특징으로 하는 반도체 장치의 제조방법.
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Also Published As
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US7157796B2 (en) | 2007-01-02 |
KR20110089387A (ko) | 2011-08-08 |
US20050127512A1 (en) | 2005-06-16 |
US7462511B2 (en) | 2008-12-09 |
JP3953027B2 (ja) | 2007-08-01 |
KR20050059418A (ko) | 2005-06-20 |
EP1542279A2 (en) | 2005-06-15 |
KR101071761B1 (ko) | 2011-10-11 |
EP1542279A3 (en) | 2012-03-14 |
JP2005175317A (ja) | 2005-06-30 |
EP3067922B1 (en) | 2021-07-28 |
US20060118959A1 (en) | 2006-06-08 |
EP3067922A1 (en) | 2016-09-14 |
EP1542279B1 (en) | 2017-05-17 |
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