Patent ID: 6410979
Filing Date: 2002-06-25
Classification: H01L

Abstract:
A ball-grid-array semiconductor device comprising:a semiconductor element; a resin material which seals said semiconductor element and has a bottom surface and leg portions extending below said bottom surface, said leg portions being arranged in parallel rows and said bottom surface existing at least between said parallel rows of said leg portions; and a lead frame formed of a single material and connected to said semiconductor element in said resin material, said lead frame having a bottom surface and a terminal portion for connecting to a substrate, said terminal portion extending below said bottom surface of said lead frame and protruding through a bottom surface of one of said leg portions, wherein said leg portions elevate said semiconductor device above said substrate so that said bottom surface of said resin material is separated from a surface of said substrate by a space having a height which is at least a length of said leg portions.