Invention Grant
- Patent Title: High K metal-insulator-metal (MIM) capacitor network for lag mitigation
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Application No.: US18154770Application Date: 2023-01-13
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Publication No.: US12177589B2Publication Date: 2024-12-24
- Inventor: Bill Phan , Duli Mao , Yuanliang Liu , Heesoo Kang , Yifei Du , Woon Il Choi
- Applicant: OMNIVISION TECHNOLOGIES, INC.
- Applicant Address: US CA Santa Clara
- Assignee: OMNIVISION TECHNOLOGIES, INC.
- Current Assignee: OMNIVISION TECHNOLOGIES, INC.
- Current Assignee Address: US CA Santa Clara
- Agency: PERKINS COIE LLP
- Main IPC: H04N25/77
- IPC: H04N25/77 ; H04N25/59

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.
Public/Granted literature
- US20240244350A1 HIGH K METAL-INSULATOR-METAL (MIM) CAPACITOR NETWORK FOR LAG MITIGATION Public/Granted day:2024-07-18
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