상세정보
학술지
Conductive Adhesive with Transient Liquid-phase Sintering Technology for High-power Device Applications
- 발행일
- 201912
- 출처
- ETRI Journal, v.41 no.6, pp.820-828
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 19PB1700, 유연 LED 모듈용 레이저 기반 청정 접합소재 및 공정 기술 개발, 엄용성
- 초록
- A highly reliable conductive adhesive obtained by transient liquid-phase sintering (TLPS) technologies is studied for use in high-power device packaging. TLPS involves the low-temperature reaction of a low-melting metal or alloy with a high-melting metal or alloy to form a reacted metal matrix. For a TLPS material (consisting of Ag-coated Cu, a Sn96.5-Ag3.0-Cu0.5 solder, and a volatile fluxing resin) used herein, the melting temperature of the metal matrix exceeds the bonding temperature. After bonding of the TLPS material, a unique melting peak of TLPS is observed at 356혻°C, consistent with the transient behavior of Ag3Sn혻+혻Cu6Sn5혻?넂혻liquid혻+혻Cu3Sn reported by the National Institute of Standards and Technology. The TLPS material shows superior thermal conductivity as compared with other commercially available Ag pastes under the same specimen preparation conditions. In conclusion, the TLPS material can be a promising candidate for a highly reliable conductive adhesive in power device packaging because remelting of the SAC305 solder, which is widely used in conventional power modules, is not observed.
- KSP 제안 키워드
- Ag-coated Cu, Bonding temperature, Device packaging, High power, Low melting, Low temperature(LT), Low-temperature reaction, Melting temperature(Tm), Metal matrix, National Institute of Standards and Technology, Power device
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