KR101704856B1 - 도전성 입자, 이방성 도전 재료 및 접속 구조체 - Google Patents
도전성 입자, 이방성 도전 재료 및 접속 구조체 Download PDFInfo
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- KR101704856B1 KR101704856B1 KR1020127023400A KR20127023400A KR101704856B1 KR 101704856 B1 KR101704856 B1 KR 101704856B1 KR 1020127023400 A KR1020127023400 A KR 1020127023400A KR 20127023400 A KR20127023400 A KR 20127023400A KR 101704856 B1 KR101704856 B1 KR 101704856B1
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- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/04—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation using electrically conductive adhesives
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Abstract
도전성 입자 (1)은 기재 입자 (2)와, 상기 기재 입자 (2)의 표면 (2a)에 형성된 니켈층 (3)과, 상기 니켈층 (3)의 표면 (3a)에 형성된 팔라듐층 (4)를 구비한다. 도전성 입자 (1)에서는 니켈층 (3)의 인의 함유율이 5 내지 15 중량%의 범위 내이며, 팔라듐층 (4)의 팔라듐의 함유율이 96 중량% 이상이다.
Description
도 2는 본 발명의 다른 실시 형태에 따른 도전성 입자를 도시하는 단면도이다.
도 3은 본 발명의 일 실시 형태에 따른 도전성 입자를 이용한 접속 구조체를 모식적으로 도시하는 정면 단면도이다.
도 4는 실시예 및 비교예의 절연 저항의 평가 시에 이용한 기판 상의 빗살 전극 구리 패턴의 형상을 설명하기 위한 평면도이다.
2… 기재 입자
2a… 표면
3… 니켈층
3a… 표면
4… 팔라듐층
4a… 표면
11… 접속 구조체
12… 회로 기판
12a… 전극
13… 접속부
14… 반도체 칩
14a… 전극
21… 도전성 입자
21a… 표면
22… 니켈층
22a… 표면
23… 팔라듐층
23a… 표면
24… 코어 물질
25… 돌기
26… 절연성 수지
31, 32… 빗살 전극 구리 패턴
Claims (7)
- 기재 입자와, 상기 기재 입자의 표면에 형성된 니켈층과, 상기 니켈층의 표면에 형성된 팔라듐층을 구비하고,
상기 니켈층의 인의 함유율이 5 내지 15 중량%의 범위 내이며, 상기 팔라듐층의 팔라듐의 함유율이 96 중량% 이상인 도전성 입자. - 제1항에 있어서, 표면에 돌기를 갖는 도전성 입자.
- 제1항에 있어서, 상기 팔라듐층의 외측의 표면에 돌기를 갖는 도전성 입자.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 팔라듐층의 표면에 부착된 절연성 수지를 더 구비하는 도전성 입자.
- 제4항에 있어서, 상기 절연성 수지가 절연 수지 입자인 도전성 입자.
- 제1항 내지 제3항 중 어느 한 항에 기재된 도전성 입자와 결합제 수지를 포함하는 이방성 도전 재료.
- 제1 접속 대상 부재와, 제2 접속 대상 부재와, 상기 제1, 제2 접속 대상 부재를 전기적으로 접속하고 있는 접속부를 구비하고,
상기 접속부가 제1항 내지 제3항 중 어느 한 항에 기재된 도전성 입자 또는 상기 도전성 입자와 결합제 수지를 포함하는 이방성 도전 재료에 의해 형성되어 있는 접속 구조체.
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