Radiant energy sensor with blooming control
US4321614A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1980 |
| Grant date | Mar 23, 1982 |
| Priority date | — |
| Expiry date | Mar 12, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/157
Abstract
A radiant energy sensor incorporating a substrate having two electrodes on a first surface and a third electrode on a second surface is described wherein a first electrode collects a first portion of charge generated by radiant energy absorbed in the substrate to provide an output signal and wherein the second electrode is biased with a voltage supply to attract and remove a second portion of charge from the substrate and first electrode to prevent blooming due to excess charge. The sensor includes a layer of semiconductor material deposited over the substrate and over the first and second electrode to conserve detector area and to permit the location of circuitry over top of the second electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.