Patent ID: 9160949
Filing Date: 2015-10-13
Classification: H01L,H04N

Abstract:
1. A photon detection device, comprising: a photodiode having a planar junction disposed in a first region of semiconductor material, wherein the semiconductor material includes P doped silicon and the planar junction includes an N doped silicon region disposed proximate to a P doped silicon region in the semiconductor material, wherein a doping density in the N doped silicon region gradually decreases towards an edge of the N doped silicon region, wherein the edge of the N doped silicon region does not utilize a guard ring or a doped well for isolation; and a deep trench isolation (DTI) structure disposed in the semiconductor material, wherein the DTI structure isolates the first region of the semiconductor material on one side of the DTI structure from a second region of the semiconductor material on an other side of the DTI structure, wherein the DTI structure includes: