Patent ID: 6573612
Filing Date: 2003-06-03
Classification: H01L

Abstract:
A resin-encapsulated semiconductor device comprising:a substrate for mounting a semiconductor chip including thereon a patterned wiring, a plurality of first through holes for external connection and a plurality of lands which cover the entire openings of the first through holes and partially constitute the patterned wiring, said substrate being planar so as to define a plane, a semiconductor chip mounted on the substrate, the semiconductor chip being encapsulated with a resin, terminals for external connection being mounted on a surface opposite to a chip-mounting surface of the substrate and electrically connected to the semiconductor chip through the lands, and wherein a peripheral edge of the substrate is positioned inside a peripheral edge of the resin for encapsulation so that the peripheral edge of the resin extends over and beyond the peripheral edge of the substrate, and wherein the resin does not extend into the plane defined by the substrate.