Patent ID: 7164192
Filing Date: 2007-01-16
Classification: H01L

Abstract:
1. A structure comprising: a substrate having a top surface; a die attach pad situated on said top surface of said substrate, said die attach pad having a die attach region and at least one substrate ground pad region electrically connected to said die attach region, said die attach pad further including a die attach stop between said die attach region and said at least one substrate ground pad region, wherein said die attach stop comprises an opening defined in said die attach pad between said die attach region and said at least one substrate ground pad region, wherein a depth of said opening is approximately equal to a height of said die attach pad; a heat spreader situated on a bottom surface of said substrate, said substrate including at least one via for providing a connection between said at least one substrate ground pad region to said heat spreader; wherein said die attach stop controls and confines die attach adhesive flow out.