Influence of titanate and zirconate coupling agents in epoxy underfill material

Proceedings International Symposium on Advanced Packaging Materials Processes, Properties and Interfaces (IEEE Cat. No.01TH8562) Pub Date : 2001-03-11 DOI:10.1109/ISAOM.2001.916594

S. Luo, T. Yamashita, C. Wong

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Abstract

This paper presents an investigation of the effects of five titanate and zirconate coupling agents (CA) with different functional groups on various properties of epoxy underfill materials, including viscosity, curing, thermo-mechanical properties, and adhesion to SiO/sub 2/ passivation. CA-A, CA-C, and CA-E increased the viscosity of underfill. Addition of the coupling agents led to decrease in the curing onset temperature of epoxy underfill formulations. All of the coupling agents investigated in this study also brought a slight decrease in glass transition temperature (T/sub g/) of epoxy underfill. The die shear test of underfill on SiO/sub 2/ passivation showed that the adhesion was not changed significantly with the addition of the titanate and zirconate coupling agents, except for CA-E. The influence of coupling agent CA-E concentration in underfill materials was further investigated. CA-E has potential for use in epoxy underfill to improve adhesion.

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钛酸盐和锆酸盐偶联剂对环氧底填料性能的影响

研究了五种不同官能团的钛酸盐和锆酸盐偶联剂(CA)对环氧底填料粘度、固化性能、热机械性能和SiO/sub /钝化附着力等性能的影响。CA-A、CA-C和CA-E增加了下填料的黏度。偶联剂的加入降低了环氧底填料配方的固化起始温度。各偶联剂均能使环氧底填料的玻璃化转变温度(T/sub g/)略有降低。对SiO/sub - 2/钝化下填料的模剪试验表明，除CA-E外，钛酸盐和锆酸盐偶联剂的加入对下填料的附着力没有显著影响。进一步研究了偶联剂CA-E浓度对下填料的影响。CA-E在环氧底填料中具有改善附着力的潜力。

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Proceedings International Symposium on Advanced Packaging Materials Processes, Properties and Interfaces (IEEE Cat. No.01TH8562)

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