Patent ID: 6984884
Filing Date: 2006-01-10
Classification: H01L

Abstract:
1. An electric power semiconductor device comprising: a semiconductor element mounted on a die pad; a main terminal lead electrically connected to the semiconductor element by a plurality of bonding wires, each of the bonding wires being connected to a continuous surface area on the main terminal lead by a corresponding wire bonding portion so that there are an equal number of bonding wires and wire bonding portions; and a mold resin configured to seal at least the semiconductor element, bonding wires, and the wire bonding portions, thereby forming a package thereof, wherein the main terminal lead is configured as a single body comprised of inner lead portion at an inner end of the single body and an outer lead portion at an outer end of the single body, the inner lead portion further containing a number of through holes, each through hole being configured to penetrate through the main terminal lead at a position between the wire bonding portions and a connection portion of the outer lead portion exposed from the mold resin to the outside for electrical connection, the through holes being less in number than the number of wire bonding portions, and the through holes being arranged to be overlapping with the wire bonding portions as viewed along a main terminal lead direction extending from the inner end through the wire bonding portions and the through holes.