Patent ID: 11894258
Assignee: FUJI ELECTRIC CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A manufacturing method for a semiconductor diode, the manufacturing method comprising:
providing an anode electrode on a front surface side of a semiconductor substrate;
providing a drift region of a first conductivity type in the semiconductor substrate;
providing a first anode region of the first conductivity type that is in Schottky contact with the anode electrode; and
providing a second anode region of a second conductivity type that is different from the first conductivity type,
wherein the first anode region has a doping concentration lower than or equal to a doping concentration of the second anode region, and is spaced from the drift region by the second anode region, and
wherein on the front surface of the semiconductor substrate, an area of the first anode region is greater than an area of the second anode region.