Patent ID: 8395244
Filing Date: 2013-03-12
Classification: H01L

Abstract:
1. A fast recovery diode comprising: an n-doped base layer having a cathode side and an anode side opposite the cathode side; a p-doped anode layer on the anode side, the anode layer having a doping profile and comprising at least two sublayers, which are arranged parallel to the anode side, wherein: the at least two sublayers comprise a first sublayer and a last sublayer; the first sublayer has a first maximum doping concentration, which is between 2*10 the last sublayer having a last sublayer depth, which is larger than any other sublayer depth, the last sublayer depth being between 90 to 120 μm; the doping profile of the anode layer declines such that a doping concentration in a range of 5*10 wherein the at least two sublayers are aluminum diffused layers.