Patent ID: 6963142
Filing Date: 2005-11-08
Classification: H01L

Abstract:
1. A device having a flip chip integrated package and a support structure, comprising: a substrate having a first and a second surface and a plurality of openings extending from said first to said second surfaces; a chip including a plurality of conductive solder bumps for electrical connectivity with said substrate, said chip mounted on said first surface of said substrate over said openings; a plurality of solder balls on said second surface of said substrate; and a mold compound encapsulating said chip and adhering to said first surface of said substrate but not extending to side surfaces of said substrate, said chip supported entirely on said substrate by said conductive solder bumps, wherein said mold compound further fills in space between the chip and the first surface of the substrate and extends through said openings to create molded buttons projecting from said second surface of said substrate which act as a support structure, wherein said solder balls in a pre-reflow state project a distance from said second surface of said substrate greater than said molded buttons such that said molded buttons serve to support the package at a controlled height during a solder ball reflow.