Patent ID: 9391135
Filing Date: 2016-07-12
CPC Classification: H01L

Claim Text:
1. An IGBT comprising: a semiconductor substrate having a first surface and a second surface that is disposed opposite to the first surface; a first doped region of a first conductivity type overlying the first surface wherein a first P-N junction is formed along the first doped region; a second doped region of the first conductivity type on the second surface of the semiconductor substrate and extending a first distance into the semiconductor substrate; a third doped region having a second conductivity type in the second doped region and extending a second distance into the second doped region; a plurality of termination trenches in a termination region of the semiconductor device, the plurality of termination trenches surrounding an outer perimeter of the second doped region and extending from the second surface toward the first surface wherein at least a portion of an end of one or more termination trenches of the plurality of termination trenches extends through the first surface; and a plurality of gate structures extending through the third doped region and into the second doped region.