KR101375998B1 - 다층 배선기판의 제조방법 및 다층 배선기판 - Google Patents
다층 배선기판의 제조방법 및 다층 배선기판 Download PDFInfo
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- KR101375998B1 KR101375998B1 KR1020100135649A KR20100135649A KR101375998B1 KR 101375998 B1 KR101375998 B1 KR 101375998B1 KR 1020100135649 A KR1020100135649 A KR 1020100135649A KR 20100135649 A KR20100135649 A KR 20100135649A KR 101375998 B1 KR101375998 B1 KR 101375998B1
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- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups H01L21/18 - H01L21/326 or H10D48/04 - H10D48/07
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- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
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Abstract
(해결수단) 빌드업 공정에서, 동박(55,56)을 박리 가능한 상태로 편면에 적층 배치하여 이루어지는 기재(52) 상에 복수의 수지 절연층(21∼24) 및 복수의 도체층(26)을 교호로 적층하여 다층화함으로써 배선 적층부(30)를 형성한다. 드릴링 공정에서, 최외층의 수지 절연층(24)에 대해서 레이저 드릴가공을 실시하여 복수의 개구부(35,36)를 형성함으로써 각 접속단자(41,42)를 노출시킨다. 그 후, 디스미어 공정에서, 개구부(35,36) 내의 스미어를 제거한다.
Description
도 2는 제 1 실시형태에 있어서의 다층 배선기판의 개략 구성을 나타내는 평면도
도 3은 제 1 실시형태의 다층 배선기판의 제조방법을 나타내는 설명도
도 4는 제 1 실시형태의 다층 배선기판의 제조방법을 나타내는 설명도
도 5는 제 1 실시형태의 다층 배선기판의 제조방법을 나타내는 설명도
도 6은 제 1 실시형태의 다층 배선기판의 제조방법을 나타내는 설명도
도 7은 제 1 실시형태의 다층 배선기판의 제조방법을 나타내는 설명도
도 8은 제 1 실시형태의 다층 배선기판의 제조방법을 나타내는 설명도
도 9는 제 1 실시형태의 다층 배선기판의 제조방법을 나타내는 설명도
도 10은 제 1 실시형태의 다층 배선기판의 제조방법을 나타내는 설명도
도 11은 제 1 실시형태의 다층 배선기판의 제조방법을 나타내는 설명도
도 12는 제 1 실시형태의 다층 배선기판의 제조방법을 나타내는 설명도
도 13은 제 2 실시형태의 다층 배선기판의 제조방법을 나타내는 설명도
도 14는 제 2 실시형태의 다층 배선기판의 제조방법을 나타내는 설명도
도 15는 제 2 실시형태의 다층 배선기판의 제조방법을 나타내는 설명도
도 16은 다른 실시형태에 있어서의 다층 배선기판의 개략 구성을 나타내는 단면도
도 17은 다른 실시형태에 있어서의 다층 배선기판의 개략 구성을 나타내는 단면도
도 18은 다른 실시형태에 있어서의 다층 배선기판의 개략 구성을 나타내는 단면도
도 19는 다른 실시형태에 있어서의 다층 배선기판의 개략 구성을 나타내는 단면도
26 - 도체층 30 - 적층 구조체로서의 배선 적층부
31 - 제 1 주면으로서의 상면 32 - 제 2 주면으로서의 하면
33 - 비아 홀 34 - 비아 도체
35,36 - 개구부 41 - IC칩 접속단자
42 - 수동부품 접속단자로서의 콘덴서 접속단자
45 - 제 2 주면측 접속단자로서의 마더기판 접속단자
46,47,48 - 도금층 52 - 기재(基材)
55 - 금속박으로서의 동박
Claims (9)
- 복수의 수지 절연층 및 복수의 도체층을 교호로 적층하여 다층화한 적층 구조체를 가지되, 상기 적층 구조체의 제 1 주면측에는 복수의 제 1 주면측 접속단자가 배치되고, 상기 적층 구조체의 제 2 주면측에는 복수의 제 2 주면측 접속단자가 배치되고, 상기 복수의 도체층은 상기 복수의 수지 절연층에 형성되며 상기 제 1 주면측 또는 상기 제 2 주면측 중 어느 한 쪽으로 향함에 따라서 직경이 확대되는 비아 도체에 의해서 서로 접속되어 있는 다층 배선기판의 제조방법으로서,
금속박을 박리 가능한 상태로 편면에 적층 배치하여 이루어지는 기재 상에서, 복수의 수지 절연층 및 복수의 도체층을 교호로 적층하여 다층화함에 의해서 적층 구조체를 형성하는 빌드업 공정과,
최외층의 수지 절연층에 대해서 레이저 드릴가공을 실시함에 의해서 복수의 개구부를 형성하여 상기 제 1 주면측 접속단자를 노출시키는 드릴링 공정과,
상기 드릴링 공정 후, 상기 개구부 내의 스미어를 제거하는 디스미어 공정과,
상기 빌드업 공정 후, 상기 기재를 제거하여 상기 금속박을 노출시키는 기재 제거공정을 포함하고,
상기 최외층의 수지 절연층은 열경화성 에폭시 수지의 경화물을 사용하여 형성하는 것을 특징으로 하는 다층 배선기판의 제조방법.
- 삭제
- 청구항 1에 있어서,
상기 기재 제거공정 후, 상기 제 1 주면의 전면을 덮는 에칭 레지스트를 형성한 상태에서 상기 금속박을 서브트랙티브법으로 패터닝함에 의해서 상기 제 2 주면측 접속단자를 형성하는 접속단자 형성공정과,
상기 에칭 레지스트를 제거하여 상기 제 1 주면측 접속단자를 노출시키는 레지스트 제거공정을 포함하는 것을 특징으로 하는 다층 배선기판의 제조방법.
- 청구항 1에 있어서,
상기 기재 제거공정 후, 상기 제 2 주면 상에 에칭 레지스트를 형성한 상태에서 상기 금속박을 서브트랙티브법으로 패터닝함에 의해서 상기 제 2 주면측 접속단자를 형성하는 접속단자 형성공정과,
상기 접속단자 형성공정 후에 실시되는 상기 드릴링 공정을 포함하는 것을 특징으로 하는 다층 배선기판의 제조방법.
- 청구항 1에 있어서,
상기 드릴링 공정은 상기 제 1 주면측 접속단자를 노출시킴과 아울러, 접속단자 이외의 상기 도체층을 노출시키는 것을 특징으로 하는 다층 배선기판의 제조방법.
- 청구항 4에 있어서,
상기 드릴링 공정은 상기 제 1 주면측 접속단자를 노출시킴과 아울러, 접속단자 이외의 상기 도체층을 노출시키는 것을 특징으로 하는 다층 배선기판의 제조방법.
- 복수의 수지 절연층 및 복수의 도체층을 교호로 적층하여 다층화한 적층 구조체를 가지되, 상기 적층 구조체의 제 1 주면측에는 복수의 제 1 주면측 접속단자가 배치되고, 상기 적층 구조체의 제 2 주면측에는 복수의 제 2 주면측 접속단자가 배치되고, 상기 복수의 도체층은 상기 복수의 수지 절연층에 형성되며 상기 제 1 주면측 또는 상기 제 2 주면측 중 어느 한 쪽으로 향함에 따라서 직경이 확대되는 비아 도체에 의해서 서로 접속되어 있는 다층 배선기판으로서,
상기 복수의 수지 절연층은 열경화성 에폭시 수지의 경화물을 사용하여 형성되고,
상기 적층 구조체의 상기 제 1 주면측에서 노출 상태에 있는 최외층의 수지 절연층에는 복수의 개구부가 형성되고,
상기 제 1 주면에는 접속대상이 IC칩인 IC칩 접속단자 및 접속대상이 수동부품이며 상기 IC칩 접속단자보다도 접속면적이 큰 수동부품 접속단자의 2종류가 상기 제 1 주면측 접속단자로서 존재함과 아울러, 상기 복수의 개구부 내에는 복수의 상기 IC칩 접속단자가 배치됨과 아울러, 상기 복수의 IC칩 접속단자는 상면의 높이가 상기 최외층의 수지 절연층의 표면보다도 낮고 또한 표면측 외주부가 상기 최외층의 수지 절연층 내에 매립되어 있고
상기 수동부품 접속단자는 구리층의 상면 및 측면을 니켈과 금을 포함하며 또한 구리 이외의 도금층으로 덮은 구조를 가지며, 상기 IC칩 접속단자는 구리층의 상면만을 니켈과 금을 포함하며 또한 구리 이외의 도금층으로 덮은 구조를 가지고 있는 것을 특징으로 하는 다층 배선기판.
- 삭제
- 청구항 7에 있어서,
상기 니켈과 금을 포함하며 또한 구리 이외의 도금층은 니켈-금 도금층 또는 니켈-팔라듐-금 도금층인 것을 특징으로 하는 다층 배선기판.
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TW201132268A (en) | 2011-09-16 |
JP2011138869A (ja) | 2011-07-14 |
TWI475940B (zh) | 2015-03-01 |
US20110155443A1 (en) | 2011-06-30 |
CN102111968B (zh) | 2014-03-26 |
KR20110076804A (ko) | 2011-07-06 |
US20140202740A1 (en) | 2014-07-24 |
US8707554B2 (en) | 2014-04-29 |
CN102111968A (zh) | 2011-06-29 |
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