Image sensing device
By introducing a shielding device into the image sensing device, the magnetic field generated by the substrate is detected and cancelled by the sensing circuit and the cancellation circuit, the impact of magnetic field noise on image quality is solved, and clearer image capture is achieved.
CN115086583BActive Publication Date: 2025-04-11SK HYNIX INC
Patent Information
- Application Number
- CN202111490963.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-03-11
- Filing Date
- 2021-12-08
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2041-12-08
Smart Images
Figure CN115086583B_ABST
Abstract
An image sensing device includes: a first substrate, which is configured to include a plurality of unit pixels, and the plurality of unit pixels are configured to detect incident light to generate pixel signals carrying image information in the incident light; a second substrate, which is arranged adjacent to the first substrate and includes a structure that generates a first magnetic field at the first substrate that affects the plurality of unit pixels; and at least one shielding device, which is arranged between the first substrate and the second substrate, wherein the shielding device includes: a sensing circuit, which is configured to detect a first voltage corresponding to the first magnetic field; and a cancellation circuit, which is configured to generate a second magnetic field to resist the first magnetic field based on the first voltage.
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Citation Information
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