Patent ID: 8354691

Claim:
A N-channel lateral insulated-gate bipolar transistor comprising: a semiconductor substrate; a drift layer having a N conductive type and disposed on the semiconductor substrate; a collector region which is a P conductive type and is disposed in a first surface portion of the drift layer; a channel layer which is a P conductive type and is disposed in a second surface portion of the drift layer apart from the collector region; an emitter region which is a N conductive type and has a higher impurity concentration than the drift layer, the emitter region disposed in a first surface portion of the channel layer and having an end portion terminated inside of a terminated portion of the channel layer; a gate insulation film disposed on a channel region, which is provided by a second surface portion of the channel layer between the emitter region and the drift layer; a gate electrode disposed on the gate insulation film; a collector electrode electrically coupled with the collector region; and an emitter electrode electrically coupled with the emitter region and the channel layer, wherein the collector region includes a high impurity concentration region having a high impurity concentration and a low impurity concentration region having a lower impurity concentration than the high impurity concentration region, and wherein the collector electrode is in ohmic contact with the high impurity concentration region and in schottky contact with the low impurity concentration region.