Patent ID: 8735968

Claim:
A semiconductor die having a MOSFET and a Schottky diode, the semiconductor die comprising: a substrate; a MOSFET area in the substrate, the MOSFET area containing an active region of the MOSFET; a Schottky diode area in the substrate, the Schottky diode area containing an active region of the Schottky diode; a termination area in the substrate, the termination area comprising a plurality of termination structures wherein the Schottky diode area is laterally between the MOSFET area and the termination area; a plurality of doped rings having a different doping type from the substrate, wherein the plurality of doped rings are integrated into the substrate and are located laterally within the Schottky diode area, and wherein the doped rings surround the MOSFET area; and a gate metal, wherein the gate metal is placed outside of the plurality of doped rings, and wherein the plurality of doped rings and the gate metal are completely surrounded by the plurality of termination structures.