학술논문
Reliability Enhancement of Anisotropic Conductive Adhesives Flip Chip on Organic Substrates by Non-Conducting Filler Additions
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- 영문명
- Reliability Enhancement of Anisotropic Conductive Adhesives Flip Chip on Organic Substrates by Non-Conducting Filler Additions
- 발행기관
- 한국마이크로전자및패키징학회
- 저자명
- 간행물 정보
- 『마이크로전자 및 패키징학회지』제7권 제1호, 41~49쪽, 전체 9쪽
- 주제분류
- 공학 > 산업공학
- 파일형태
- 발행일자
- 2000.03.31
4,000원
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국문 초록
영문 초록
Flip chip assembly on organic substrates using ACAs have received much attentions due to many advantages such as easier processing, good electrical performance, lower cost, and low temperature processing compatible with organic substrates. ACAs are generally composed of epoxy polymer resin and small amount of conductive fillers (less than 10 wt.%). As a result, ACAs have almost the same CTE values as an epoxy material itself which are higher than conventional underfill materials which contains lots of fillers. Therefore, it is necessary to lower the CTE value of ACAs to obtain more reliable flip chip assembly on organic substrates using ACAs. To modify the ACA composite materials with some amount of conductive fillers, non-conductive fillers were incorporated into ACAs. In this paper, we investigated the effect of fillers on the thermo-mechanical properties of modified ACA composite materials and the reliability of flip chip assembly on organic substrates using modified ACA composite materials. For the characterization of modified ACAs composites with different content of non-conducting fillers, dynamic scanning calorimeter (DSC), and thermo-gravimetric analyser (TGA), dynamic mechanical analyzer (DMA), and thermo-mechanical analyzer (TMA) were utilized. As the non-conducting filler content increased, CTE values decreased and storage modulus at room temperature increased. In addition, the increase in the content of filler brought about the increase of Tg^{DSC} and Tg^{TMA}. However, the TGA behaviors stayed almost the same. Contact resistance changes were measured during reliability tests such as thermal cycling, high humidity and temperature, and high temperature at dry condition. It was observed that reliability results were significantly affected by CTEs of ACA materials especially at the thermal cycling test. Results showed that flip chip assembly using modified ACA composites with lower CTEs and higher modulus by loading non-conducting fillers exhibited better contact resistance behavior than conventional ACAs without non-conducting fillers.
목차
1. Introduction
2. Experiments
3. Results and Discussion
4. Conclusion
5. Acknowledgement
References
해당간행물 수록 논문
- Reliability Enhancement of Anisotropic Conductive Adhesives Flip Chip on Organic Substrates by Non-Conducting Filler Additions
- 공기막의 스퀴즈효과를 고려한 마이크로미러 설계에 관한 연구
- Critical Cleaning Requirements for Back End Wafer Bumping Processes
- 유리-유리 기판의 진공-정전 열 접합 특성
- LTCC-M 기술을 이용한 내부실장 R, L, C 수동소자의 특징 및 LMR용 PAM개발
- 고주파 MCM-C용 내부저항의 제작 및 특성 평가
- Critical Cleaning Requirements for Flip Chip Packages
- Stacked Chip Package를 위한 Sn-Sn 기계적 접합의 미세구조와 접착강도
- Structural Characteristics on InAs Quantum Dots multi-stacked on GaAs(100) Substrates
- 접촉각 측정과 AFM/LFM을 이용한 불화 유기박막의 특성 평가
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