Patent ID: 6124643
Filing Date: 2000-09-26
Classification: H01L

Abstract:
A semiconductor device assembly comprising:a semiconductor device having a first exterior surface and a second active interior surface, said semiconductor device including connecting structure extending from a portion of said second active interior surface;a substrate having a portion of a metallized surface pattern of electrical circuits contacting said connecting structure and an exterior surface;a gap formed between said second active interior surface of said semiconductor device and said metallized surface pattern of electrical circuits of said substrate;at least one open unfilled thermal via extending between said metallized surface pattern of electrical circuits of said substrate and said exterior surface of said substrate, said at least one open unfilled thermal via capable of transferring heat from said gap and facilitating creation of vacuum pressure within said gap; andfill material positioned between said metallized surface pattern of electrical circuits of said substrate and said second active interior surface of said semiconductor device, said fill material flowing into said gap by a vacuum applied through said at least one open unfilled thermal via, said fill material allowing said at least one open unfilled thermal via to remain free of said fill material.