Patent ID: 8530967
Filing Date: 2013-09-10
Classification: H01L

Abstract:
1. A lateral insulated-gate bipolar, transistor, comprising: a first conductive type semiconductor substrate; a second conductive type drift region formed in the first conductive type semiconductor substrate; a first conductive type collector ion implantation region formed at a preset depth in the second conductive type drift region; a buried insulation layer formed to have at least one open area and at least one closed area on an interface between a top surface of the collector ion implantation region and the drift region; a first conductive type base region formed to face towards a first open area of the at least one open area in the semiconductor substrate; a gate electrode formed between adjacent first conductive type base regions on the semiconductor substrate; a second conductive type emitter ion implantation region formed at side portions of the gate electrode in the semiconductor substrate; an insulation layer formed on a top surface of the semiconductor substrate including the gate electrode, a contact formed to penetrate the insulation layer and a first closed area of the at least one closed area of the buried insulation layer and contacting the collector ion implantation region; an emitter electrode electrically connected to the emitter ion implantation region; and a collector electrode electrically connected to the contact.