Detector for electromagnetic radiation, pixel structure with high sensitivity using such detector and method of manufacturing such detector
First Claim
1. A detector for electromagnetic radiation including a semiconductor substrate having dopants of a first conductivity type, wherein said substrate comprises a first region and a second region both having dopants of a second conductivity type, said first region and said second region being adapted for collecting charge carriers being generated by radiation in said substrate, said substrate further comprising a third region having dopants of the first conductivity type at a higher doping level than the substrate, the third region forming a barrier for substantially impeding the diffusion of said charge carriers to said second region.
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Abstract
The present invention discloses a semiconductor based detector for radiation with a small but effective barrier between the radiation sensitive volume in the semiconductor and the regions and junctions with readout circuitry, and with no or a lower barrier between the semiconductor substrate and the regions and junctions adapted and meant for collecting the charge carriers generated by the radiation in the semiconductor substrate.
100 Citations
27 Claims
- 1. A detector for electromagnetic radiation including a semiconductor substrate having dopants of a first conductivity type, wherein said substrate comprises a first region and a second region both having dopants of a second conductivity type, said first region and said second region being adapted for collecting charge carriers being generated by radiation in said substrate, said substrate further comprising a third region having dopants of the first conductivity type at a higher doping level than the substrate, the third region forming a barrier for substantially impeding the diffusion of said charge carriers to said second region.
Specification