Patent ID: 9728475
Date: 2017-08-08
CPC Classifications: H01L

Claim:
1. A semiconductor device comprising: a frame body having an opening region; an insulating substrate disposed in the opening region of the frame body and including a semiconductor chip; a first lead portion including a first plate portion that is at least partially exposed to the opening region of the frame body and that extends from an end surface forming the opening region, the first plate portion including a top surface and a first lateral side and a second lateral side extending away from the top surface in a thickness direction of the first plate portion, and a plurality of uneven portions are formed on at least the first lateral side of the first plate portion; a second lead portion disposed adjacent to the first lead portion and including a second plate portion that is at least partially exposed to the opening region of the frame body and that extends from the end surface forming the opening region, the second plate portion including a top surface and a first lateral side and a second lateral side extending away from the top surface in a thickness direction of the second plate portion, and a plurality of uneven portions are formed on at least the second lateral side of the second plate portion such that the plurality of uneven portions formed on the first lateral side of the first plate portion directly face the plurality of uneven portions formed on the second lateral side of the second plate portion with a concave portion of the plurality of uneven portions formed on the first lateral side of the first plate portion being directly aligned with a convex portion of the plurality of uneven portions formed on the second lateral side of the second plate portion; and an ultrasonic-bonded wire connecting the lead portion and the semiconductor chip.