Patent ID: 9664558
Date: 2017-05-30
CPC Classifications: G01J,G01T,H01L

Claim:
1. A radiation detector comprising: a) a directly converting semiconductor layer for converting an incident radiation into electrical signals; b) a substrate comprising readout electronics for receiving said electrical signals via pixel pads arranged at said directly converting semiconductor layer; and c) a plurality of radiation sources connected or integrated to said substrate and adapted to irradiate said directly converting semiconductor layer; wherein d) said plurality of infrared radiation sources are provided on an infrared source layer which is interposed between said directly converting semiconductor layer and a readout chip of said substrate and which is flip-chip bonded to said directly converting semiconductor layer via said pixel pads, wherein said plurality of infrared radiation sources adapted to irradiate said directly converting semiconductor layer are arranged at corners of the pixel pads of said directly converting semiconductor layer, wherein said infrared source layer comprises through connection portions for electrically connecting said pixel pads to related contact portions on said readout chip.