Patent ID: 8912623

Claim:
A fast recovery diode comprising: a base layer of a first conductivity type, the base layer having a cathode side and an anode side opposite the cathode side; an anode buffer layer of a second conductivity type having a first depth and a first maximum doping concentration on the anode side; an anode contact layer of the second conductivity type having a second depth, which is lower than the first depth, and a second maximum doping concentration, which is higher than the first maximum doping concentration; a space charge region of the anode junction at a breakdown voltage, which is located between a third depth and the cathode side, the third depth being arranged between the first and the second depth, the first, second and third depths being measured from the anode side; a defect layer with a defect peak, which is arranged in the anode buffer layer between the second depth and the third depth, wherein the anode buffer layer has a first surface which borders the base layer at the first depth, a second surface which borders the anode contact layer at the second depth, and first and second ends, and wherein the entirety of the defect layer extends continuously between the first and second surfaces and the first and second ends of the anode buffer layer.