Patent ID: 6376916
Filing Date: 2002-04-23
Classification: H01L

Abstract:
A semiconductor device, comprising:a semiconductor chip having a plurality of electrodes on one surface thereof: a BGA tape carrier comprising an insulating film having an opening for bonding in the middle thereof, a plurality of leads formed on said insulating film and projecting into said opening to provide a plurality of inner leads, and a plurality of lands connected with said plurality of leads, said plurality of leads and said plurality of lands being formed in a predetermined pattern on one surface of said insulating film; elastomer layers for relieving thermal stress, said elastmer layers being positioned between said one surface of said insulating film and said one surface of said semiconductor chip; a plurality of solder balls positioned on another surface of said insulating film to be connected with said plurality of lands; and a sealing resin to seal connected portions of said plurality of inner leads and said plurality of electrodes; wherein: said elastomer layers are located on opposite sides of said opening to be separated around at least one end of said opening.