Patent ID: 9627569
Date: 2017-04-18
CPC Classifications: H01L,Y02E,Y02P

Claim:
1. A photo detector array, comprising: a substrate layer; a plurality of doped semiconductor layers including a first semiconductor layer doped with a first dopant disposed above said substrate and a second semiconductor layer doped with a second dopant disposed above said first semiconductor layer and proximal thereto; said first and second semiconductor layers being ion implanted in a plurality of selected regions thereof at generally positive lateral profile angles with respect to a normal to said first and second semiconductor layers so as to form a corresponding plurality of mesa structures having angled side profiles in said first and second semiconductor layers; and a photon detection circuit including a plurality of ohmic connections to one or more of said mesa structures so as to provide at least one output signal of said array corresponding to one or more detected photon interactions within said mesa structures.