Designs of digital pixel sensors
US6809769B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2000 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Sep 16, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/933
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital photoimaging device is presented. The digital photoimaging device includes a photosensor array having supporting circuitry formed on a second substrate produced, for example, with CMOS process technology and photosensors formed on a first substrate. The first substrate is processed separately from the second substrate so that the photosensors formed on the first substrate can be optimized while also optimizing the circuitry formed on the second substrate. The first substrate is then placed into electrical contact with the second substrate so that signals from the photosensors on the first substrate arc received by the supporting circuitry on the second substrate. In one embodiment, the supporting circuitry includes an array of support circuits each including an analog-to-digital converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.