Patent ID: 6566690
Filing Date: 2003-05-20
Classification: H01L

Abstract:
A MOS technology power device comprising:a semiconductor material layer of a first conductivity type; a conductive insulated gate layer covering the semiconductor material layer, the conductive insulated gate layer including a first insulating material layer above the semiconductor material layer, a conductive material layer above the first insulating material layer, and a second insulating material layer above the conductive material layer; a plurality of elementary functional units, each elementary functional unit including: an elongated body region of a second conductivity type formed in the semiconductor material layer; an elongated window in the insulated gate layer above the elongated body region; a source region of the first conductivity type, disposed in the elongated body region and intercalated with a body portion of the elongated body region wherein no dopant of the first conductivity type is provided; a plurality of insulating material sidewall spacers, each one disposed above the body region at each elongated edge of the elongated window in the insulated gate layer; and a metal layer above the semiconductor material layer and the conductive insulated gate layer, contacting the body region and the source region through the elongated window of each elementary functional unit.