MEASLING IN GLASS REINFORCED EPOXY PRINTED CIRCUIT LAMINATES.

Measling can be attributed to entrapped volatile materials present in the composite structure. In looking for ways to overcome this problem, and at the same time to improve the performance of the laminates, the silane family of finishing agents has been investigated. With the development of a variety of organo-functional silane coupling agents, a material is found that is capable of reacting with, and forming covalent chemical bonds with, both organic polymer and inorganic glass. This bridging of the interface between resin and reinforcement provides good adhesion, and the stability of the covalent linkage maintains this adhesion under adverse environmental conditions.