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.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
