Patent ID: 9466711
Filing Date: 2016-10-11
CPC Classification: H01L

Claim Text:
1. A semiconductor device comprising: a main device with a gate insulating film; an insulated gate semiconductor device with a gate insulating film for current detection and configured to be smaller in size than the main device, wherein an entirety of the gate insulating film of the main device is substantially same in thickness to an entirety of the gate insulating film of the insulated gate semiconductor device for current detection; and a resistor connected to the main device and the insulated gate semiconductor device, wherein the main insulated gate semiconductor device comprises: the insulated gate semiconductor device for current detection comprises: the resistor is connected with both the first electrode and the third electrode, the second electrode and fourth electrode are short-circuited, and an interval between adjacent first trenches is wider than an interval between adjacent second trenches.