Two-color infrared detector
US5751049A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1994 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | Sep 14, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/1847
Abstract
A two-color infrared detector (50) is provided comprising elements (10, 110, or 210) having one or more diodes (58, 158 and 168) and a metal insulator semiconductor ("MIS") device (56 and 156). The infrared detector (50) may be referred to as a vertically integrated capacitor diode. The diodes comprise regions (12, 14, 16, 112, 114, and 116) of semiconductor materials which are operable to generate electron-hole pairs when struck by infrared radiation (40) having first and second wavelengths. The capacitor (156) includes a gate (24) provided by the MIS device which is operable to generate a potential well in the first semiconductor region (12 and 112) in conjunction with an insulator layer (22) and collect charges generated by the first wavelength of infrared radiation (40). The layers of semiconductor material may be varied to enhance the performance of the resulting infrared detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.