Patent ID: 9685481
Date: 2017-06-20
CPC Classifications: H01L

Claim:
1. A method, comprising providing a silicon substrate; forming silicon readout circuitry on a first portion of a top surface of the silicon substrate; and forming a radiation detecting pixel on a second portion of the top surface of the silicon substrate, the radiation detecting pixel being comprised of a plurality of radiation detectors connected -with the silicon readout circuitry, where the plurality of radiation detectors are formed to comprise at least one visible wavelength radiation detector comprised of germanium and -at least one infrared wavelength radiation detector comprised of a Group III-V semiconductor material; where the substrate comprises a layer of oxide disposed on the second portion of the surface of the silicon substrate and a layer of germanium disposed on the layer of oxide, where the plurality of radiation detectors are formed to each comprise a plurality of layers of semiconductor material disposed above the layer of germanium and vertically adjacent to one another in a stacked manner.