Patent ID: 6197145
Filing Date: 2001-03-06
Classification: B29C,B29K,H05K,Y10T

Abstract:
A method of manufacturing a circuit assembly having a flexible film and a rigid substrate made from a plastic resin comprising the following steps:providing a flexible film made from a first plastic resin having conductive circuit traces on at least one surface thereof and a backing surface;applying a heat activated adhesive atop said backing surface;placing said flexible film within an open mold;closing said mold;injecting a hot second plastic resin different from said first plastic resin within said mold adjacent said adhesive, said second plastic resin heating said adhesive above said activation temperature and activating said adhesive, said adhesive bonding to said backing surface of said flexible film and to said second plastic resin;cooling said second plastic resin and said adhesive; andremoving said circuit assembly from said mold.