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자료유형
학술저널
저자정보
방정환 (한국생산기술연구원) 유동열 (한국생산기술연구원) 고용호 (한국생산기술연구원) 김정한 (한국생산기술연구원) 이창우 (한국생산기술연구원)
저널정보
대한용접·접합학회 대한용접·접합학회지 大韓熔接·接合學會誌 第31卷 第5號
발행연도
2013.10
수록면
54 - 58 (5page)

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Joint properties of vehicle ECU (Electric Control Unit) module which was manufactured by using Sn-Cu-Cr-Ca alloy were investigated. A new solder which has a middle melting temperature about 231℃ was fabricated as the type of 300um solder ball and paste type. The prototype modules were made by reflow process and measured spreadability, wettability shear strength and estimated interface reaction. The spreadability of the alloy was about 84% from the measurement of contact angle of the solder ball and the wetting force was measured 2mN. The average shear strength of the module which was manufactured by using the solder paste, was 1.9 ㎏/㎟. Also, the thickness of IMC(intermetallic compound) was evaluated with various aging temperature and time in order to understand Cr effect on Sn-0.7Cu solder. Cu6Sn5 IMC was formed between Cu pad and the solder alloy and the average thickness of the Cu6Sn5 IMC was measured about 4㎛ and it was about 50% of thickness of Cu6Sn5 IMC in Sn-0.7Cu. It is expected to have a positive effect on reliability of the solder joint.

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Abstract
1. 서론
2. 사용 재료
3. 실험 방법
4. 실험결과 및 고찰
5. 결론
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UCI(KEPA) : I410-ECN-0101-2014-580-002724343