Patent ID: 9006818
Filing Date: 2015-04-14
Classification: H01L

Abstract:
1. An insulated gate field effect transistor comprising: a semiconductor substrate having a drain region, a source region, a channel region, and an insulation groove that splits the channel region into a first channel region located on the drain region side and a second channel region located on the source region side; a gate electrode having a first gate electrode portion that forms the first channel region in the semiconductor substrate, and a second gate electrode portion that forms the second channel region in the semiconductor substrate; a gate insulator that is located between the semiconductor substrate and the gate electrode and that insulates the gate electrode from the drain region and the source region; and a conductive member that is supported by a drain-side end face of the insulation groove, the drain-side end face being an end face on the drain region side, and a source-side end face of the insulation groove, the source-side end face being an end face on the source region side, and that is cut when a temperature of the conductive member is higher than or equal to a predetermined temperature.