Patent ID: 6166435
Filing Date: 2000-12-26
Classification: H01L

Abstract:
A semiconductor chip package comprising:a ball grid array substrate panel having top and bottom surfaces, said bottom surface having a plurality of solder balls attached thereon;at least one semiconductor chip being mounted substantially in the center of said top surface of said substrate panel;a plurality of contact pads formed on said top surface of said substrate panel, each of said contact pads being located near a corner of said semiconductor chip; anda heat slug having a top plate covering said semiconductor chip and a plurality of flanges extending down to said substrate panel, said top plate having a plurality of hollow cylindrical contact bodies each having a flat bottom for providing close contact with a corresponding contact pad and bonding said heat slug to said substrate panel;wherein said top plate is bonded to said semiconductor chip by means of a first adhesive material, and said heat slug is bonded to said contact pads on said substrate panel by means of a second adhesive material.