Infrared detector based on pyroelectric material
US5087816A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1990 |
| Grant date | Feb 11, 1992 |
| Priority date | — |
| Expiry date | Jun 14, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/34
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An infrared detector based on pyroelectric material, of the type associated with a reading circuit prepared on a semiconductor substrate, the substrate also supporting conductive blocks designed to transmit the electrical signals generated by the pyroelectric material towards the reading circuit. Each conductive block corresponds to a picture element or pixel, wherein the detector is formed by a layer of pyroelectric material deposited on that side of the semiconductor layer having the conductive blocks. The pyroelectric material has a thermal conductivity of K<1 W/m..degree.K., a counter-electrode covering the layer of pyroelectric material on the side opposite the conductive blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.