Heat-resistant epoxy-silicon hybrid materials for printed wiring boards

Autor: Yuichi Satsu, Akio Takahashi, Morimichi Umino, Akira Nagai, Yoshihiro Nakamura
Rok vydání: 2005
Předmět:
Zdroj: IEEE Transactions on Electronics Packaging Manufacturing. 28:163-167
ISSN: 1521-334X
DOI: 10.1109/tepm.2005.846831
Popis: An epoxy-silicon hybrid resin based on a new concept has been developed. This resin has a structure in which epoxy-silicon oligomers by sol-gel reaction are incorporated into the epoxy resin matrix at the nanometer level. The nanostructure was confirmed by /sup 29/Si NMR spectrum and a time-resolved energy filtering-transmission electron microscopy technique. This epoxy-silicon hybrid resin shows excellent mechanical properties at high temperatures. The elastic modulus at 260/spl deg/C was 0.6 GPa, much higher than the 0.08 GPa of conventional epoxy resins; and the thermal expansion coefficient above the glass transition temperature was two-thirds of the conventional one. It was confirmed that conventional fabrication process for FR-5 was applicable to copper clad laminates for the epoxy-silicon hybrid resin.
Databáze: OpenAIRE