High K metal-insulator-metal (MIM) capacitor network for lag mitigation
US12177589B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2023 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Apr 11, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/621
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel circuit includes a photodiode configured to photogenerate image charge in response to incident light. A floating diffusion is coupled to receive the image charge from the photodiode. A transfer transistor is coupled between the photodiode and the floating diffusion. The transfer transistor is configured to transfer the image charge from the photodiode to the floating diffusion. A reset transistor is coupled between a reset voltage and the floating diffusion. A plurality of capacitor-switch pairs is coupled between the reset transistor and a bias voltage source. Each of the plurality of capacitor-switch pairs includes a lateral overflow integration capacitor (LOFIC) and a switch transistor coupled to the LOFIC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.