Photo diode ID for CMOS imagers
US7369167B2 · kind B2 · utility
6Cited by
9References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2003 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Aug 13, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A CMOS image pixel array formed on a chip is used for storing programmed information within the pixel array. Manufacturing lot and other data is written to the array during manufacturing and testing by applying a laser to pixels to render the photodiode defective. The programmed data is read from the pixel array using existing circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.