Patent ID: 9716123
Date: 2017-07-25
CPC Classifications: H01L

Claim:
1. A photodiode comprising: a cap layer defining an inboard side and an outboard side; a plurality of pixels formed in the cap layer extending from the inboard side to the outboard side of the cap layer to an absorption layer, wherein at least a portion of the cap layer is defined in between the pixels; a metal barrier in between the pixels operatively connected to the inboard side of the cap layer in between the pixels to reflect light rays into the cap layer reducing the leakage of photons between the pixels; a passivation layer on the inboard side of the cap layer, between the metal barrier and the cap layer, wherein the metal barrier is disposed on an inboard side of the passivation layer; and a plurality of metal overlays, wherein each metal overlay extends through the passivation layer to the inboard side of the cap layer to operatively connect to a respective one of the pixels.