KR101087344B1 - 도전성 범프와 그 제조 방법 및 전자 부품 실장 구조체 - Google Patents
도전성 범프와 그 제조 방법 및 전자 부품 실장 구조체 Download PDFInfo
- Publication number
- KR101087344B1 KR101087344B1 KR1020097015956A KR20097015956A KR101087344B1 KR 101087344 B1 KR101087344 B1 KR 101087344B1 KR 1020097015956 A KR1020097015956 A KR 1020097015956A KR 20097015956 A KR20097015956 A KR 20097015956A KR 101087344 B1 KR101087344 B1 KR 101087344B1
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- Prior art keywords
- layer
- conductive filler
- conductive
- bump
- resin
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/151—Die mounting substrate
- H01L2924/156—Material
- H01L2924/15786—Material with a principal constituent of the material being a non metallic, non metalloid inorganic material
- H01L2924/15787—Ceramics, e.g. crystalline carbides, nitrides or oxides
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- H01L2924/15786—Material with a principal constituent of the material being a non metallic, non metalloid inorganic material
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- H01L2924/1901—Structure
- H01L2924/1904—Component type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T29/49204—Contact or terminal manufacturing
- Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
- Y10T29/4921—Contact or terminal manufacturing by assembling plural parts with bonding
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Abstract
Description
Claims (14)
- 전자 부품의 전극면에 형성된 도전성 범프로서,상기 도전성 범프가, 상이한 도전 필러 함유율을 갖는 복수의 감광성 수지층으로 이루어지는 것을 특징으로 하는 도전성 범프.
- 청구항 1에 있어서,상기 복수의 감광성 수지층이, 도전 필러의 함유율이 작은 저밀도 도전 필러 수지층과 상기 도전 필러의 함유율이 큰 고밀도 도전 필러 수지층인 것을 특징으로 하는 도전성 범프.
- 청구항 1에 있어서,상기 전자 부품이, 회로 기판 또는 반도체 소자인 것을 특징으로 하는 도전성 범프.
- 청구항 2에 있어서,상기 저밀도 도전 필러 수지층이, 상기 전극면에 접해 형성되어 있는 도전성 범프.
- 청구항 4에 있어서,상기 저밀도 도전 필러 수지층이, 상기 전극면의 일부가 노출되도록 패턴화된 형상을 구비하는 것을 특징으로 하는 도전성 범프.
- 청구항 1에 있어서,상기 도전 필러가, Sn-Ag-In계 합금, Sn-Pb계 합금, Sn-Ag계 합금, Sn-Ag-Bi계 합금, Sn-Ag-Bi-Cu계 합금, Sn-Ag-In-Bi계 합금, Zn-In계 합금, Ag-Sn-Cu계 합금, Sn-Zn-Bi계 합금, In-Sn계 합금, In-Bi-Sn계 합금 및 Sn-Bi계 합금으로부터 선택된 적어도 1종의 땜납 합금, 또는 Au, Cu, Pt, Ag으로부터 선택된 적어도 1종의 금속 분말의 적어도 어느 하나를 포함하는 것을 특징으로 하는 도전성 범프.
- 청구항 1에 있어서,상기 감광성 수지층이, 감광성 에폭시계 수지, 감광성 폴리이미드계 수지 및 감광성 아크릴계 수지 중 적어도 1종을 포함하는 수지 재료로 이루어지는 것을 특징으로 하는 도전성 범프.
- 용기 내에 충전된 저밀도 도전 필러 수지 페이스트 중에 전자 부품을 침지하는 단계와,포토마스크의 개구부로부터 자외광 또는 가시광을 조사하여 상기 전자 부품의 전극 상에 저밀도 도전 필러 수지층으로 이루어지는 제1층을 형성하는 단계와,고밀도 도전 필러 수지 페이스트 중에 상기 전자 부품을 침지하는 단계와,상기 포토마스크의 개구부로부터 자외광 또는 가시광을 조사하여 상기 저밀도 도전 필러 수지층으로 이루어지는 상기 제1층 상에 고밀도 도전 필러 수지층으로 이루어지는 제2층을 형성하는 단계를 포함하는 것을 특징으로 하는 도전성 범프의 제조 방법.
- 청구항 8에 있어서,상기 제1층 또는 상기 제2층을 형성하는 단계가, 상기 용기의 광투과성을 갖는 바닥면으로부터 상기 포토마스크의 개구부를 통해 자외광 또는 가시광을 조사함으로써 상기 전자 부품의 전극 상에, 상기 제1층 또는 상기 제2층을 형성하는 단계인 것을 특징으로 하는 도전성 범프의 제조 방법.
- 청구항 8에 있어서,상기 제1층 또는 상기 제2층을 형성하는 단계가, 상기 용기에 충전된 저밀도 도전 필러 수지 페이스트 또는 상기 고밀도 도전 필러 수지 페이스트의 액면으로부터 상기 포토마스크의 개구부를 통해 자외광 또는 가시광을 조사함으로써 상기 전자 부품의 전극 상에, 상기 제1층 또는 상기 제2층을 형성하는 단계인 것을 특징으로 하는 도전성 범프의 제조 방법.
- 청구항 8에 있어서,상기 제2층을 형성하는 단계가, 복수회 행해지는 것을 특징으로 하는 도전성 범프의 제조 방법.
- 청구항 8에 있어서,상기 제2층을 형성하는 단계가, 연속적으로 행해지는 것을 특징으로 하는 도전성 범프의 제조 방법.
- 청구항 8에 있어서,상기 포토마스크로서 액정 셀이 2차원적으로 배치된 투과식의 액정 패널을 이용하여, 상기 개구부의 크기 및 상기 개구부의 위치를 상기 액정 패널에 인가하는 구동 신호 전압에 의해 전기적으로 제어하는 것을 특징으로 도전성 범프의 제조 방법.
- 복수의 전극 단자를 설치한 반도체 소자와,상기 전극 단자와 대향하는 위치에 접속 단자를 설치한 회로 기판을,상기 전극 단자 상 또는 상기 접속 단자 상에 설치한 청구항 1에 기재된 도전성 범프를 통해 접속한 것을 특징으로 하는 전자 부품 실장 구조체.
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