Apparatus and method for reducing edge effect in an image sensor
US7755679B2 · kind B2 · utility
7Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2007 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Jul 10, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/802
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for forming dummy pixels exhibiting electrical characteristics virtually identical to the clear pixels of the imaging array. Arrays of such dummy pixels are used to form regions that isolate the main imaging array and sub-arrays of optical black pixels while preventing edge effects. The dummy pixels are preferably clear but can also be covered with optical black. By setting quiescent operation in soft reset, the dummy pixels exhibit the diode ideality and RoA product that are typical of any of the pixels in the entire array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.