Patent ID: 8933529
Filing Date: 2015-01-13
Classification: H01L

Abstract:
1. A vertical Positive-Intrinsic-Negative (PIN) diode comprising: an N-type layer; a cathode contact formed on a first portion of the N-type layer defining a cathode region; an intrinsic layer formed on a second portion of the N-type layer; a portion of a P-type layer formed on a first portion of the intrinsic layer and defining an anode region; an anode contact formed on the portion of the P-type layer defining the anode region; and a protection structure formed on a second portion of the intrinsic layer, including an electrically insulating sacrificial side-guard ring formed in a further portion of the P-type layer, which laterally surrounds the portion of the P-type layer defining the anode region, wherein the first portion of the N-type layer defining the cathode region is exposed, and wherein the electrically insulating sacrificial side-guard ring includes ions implanted in the further portion of the P-type layer, which laterally surrounds the portion of the P-type layer defining the anode region.