Patent ID: 9240470
Filing Date: 2016-01-19
CPC Classification: H01L

Claim Text:
1. A high-performance reverse-conduction field-stop (RCFS) insulated gate bipolar transistor (IGBT), comprising: a first conductive type substrate; a plurality of trenches defined on a bottom face of the first conductive type substrate; a plurality of first conductive type doping regions formed on bottom faces of the trenches; a second conductive type doping region formed on the bottom face of the first conductive type substrate; and a first conductive type field stop doping region formed in the first conductive type substrate and separated with the bottom face of the first conductive type substrate with a field stop depth, where the field stop depth is larger than a depth of the trench, wherein the first conductive type is either N type or P type, and the second conductive type is either P type or N type correspondingly.