Patent ID: 9698084
Date: 2017-07-04
CPC Classifications: H01L

Claim:
1. A semiconductor device, comprising: a lead frame having terminals; a semiconductor chip electrically coupled to the terminals; and a resin part configured to encapsulate the semiconductor chip such as to expose part of the terminals, wherein a given one of the terminals includes a first lead and a second lead welded together such that an upper face of the first lead is placed against a lower face of the second lead, wherein the lower face of the second lead extends further than the upper face of the first lead toward the semiconductor chip in a longitudinal direction of the given one of the terminals, and also extends further sideways than the upper face of the first lead in a transverse direction of the given one of the terminals, and wherein an area of the lower face of the second lead is covered with the resin part, the area extending further than the upper face of the first lead, wherein a lower face of the first lead has a step portion formed at a position toward the semiconductor chip, and the step portion has a joint part formed therein by welding for connection with the second lead, the step portion being covered with the resin part, and wherein a thickness of the step portion of the first lead is less than a thickness of a remaining portion of the first lead, and the upper face of the first lead is fully covered with the second lead.