Patent ID: 6429048
Filing Date: 2002-08-06
Classification: H01L

Abstract:
A method of fabricating an integrated circuit package for ball grid arrays, comprising the steps of:laminating layers of fiberglass prepreg and copper foil to a copper plate in order to create a three-layer laminated carrier; patterning and etching contact pads for input/output and a power/ground ring; applying a solder mask and plating up said contact pads and said ring with a wire bondable metal surface; forming window openings for receiving semiconductor dies; attaching the dies within the windows, wire bonding the dies to the contact pads and said ring, encapsulating the dies, attaching solder balls to the contact pads to create finished packages and singulating the finished packages into individual packages; and attaching the copper plate portion of each of said individual packages to copper plate heat spreader.