Patent ID: 8829614

Claim:
A semiconductor power device disposed in a semiconductor substrate of a first conductivity type with a drain disposed on a bottom surface wherein the power device comprises an active cell area and a termination area and wherein: the active cell area comprises a plurality of transistor cells each having a planar gate comprises a patterned polysilicon segment disposed on a top surface of said semiconductor substrate; each of the transistor cells further comprises a body region of a second conductivity type encompassing a source region of the first conductivity wherein the body region and the source region disposed below a top surface of the semiconductor substrate underneath and surrounding an outer peripheral of the gate segment; the body region further includes a heavy body dopant region of the second conductivity type having a higher dopant concentration than the body region partially surrounding the source region and extended laterally below the top surface of the semiconductor substrate away from the gate segment; and a Schottky metal disposed on top of the semiconductor substrate in contact with the body region, the heavy body dopant region and the source region to function as an internal Schottky diode integrated with the semiconductor power device.