Patent ID: 8399976

Claim:
A resin sealed semiconductor device comprising: a thermoplastic resin case having a bottom portion and a side wall with a protrusion; a semiconductor chip mounted within said thermoplastic resin case; a metal terminal having a wire bonding surface and an opposing contact surface, and having an engagement portion with a recessed notch; a wire connected between said wire bonding surface and said semiconductor chip; a first solidified molten resin portion provided at an interface between said contact surface and the bottom portion of said resin case; and a second solidified molten resin portion provided at an interface between said engagement portion and the protrusion of the side wall such that the recessed notch is filled with the second solidified molten resin portion; wherein said contact surface is bonded to said resin case by said first solidified molten resin portion and said engagement portion is bonded to the side wall by said second solidified molten resin portion.