18047382. PHOTOELECTRIC CONVERSION DEVICE AND LIGHT EMITTING DEVICE simplified abstract (CANON KABUSHIKI KAISHA)
PHOTOELECTRIC CONVERSION DEVICE AND LIGHT EMITTING DEVICE
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Inventor(s)
PHOTOELECTRIC CONVERSION DEVICE AND LIGHT EMITTING DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18047382 titled 'PHOTOELECTRIC CONVERSION DEVICE AND LIGHT EMITTING DEVICE
Simplified Explanation
The patent application describes a photoelectric conversion device that converts incident light into charges and outputs a corresponding signal. The device includes a substrate, a photoelectric conversion unit, a floating diffusion portion, and a transistor.
- The photoelectric conversion unit generates charges in response to incident light.
- The charges are transferred to the floating diffusion portion.
- The transistor, located in the substrate, has multiple main electrodes and a gate connected to the floating diffusion portion.
- The transistor outputs a signal based on the potential of the floating diffusion portion from at least one of the main electrodes.
- In a plan view of the substrate, the gate of the transistor has four or more sides.
- The main electrodes of the transistor are adjacent to three or more sides of the gate in the plan view.
Potential Applications
- Digital cameras
- Image sensors for smartphones
- Surveillance cameras
- Medical imaging devices
Problems Solved
- Efficient conversion of incident light into electrical charges
- Accurate and reliable signal output based on the potential of the floating diffusion portion
- Compact design with multiple main electrodes adjacent to the gate
Benefits
- Improved image quality and sensitivity in photoelectric conversion devices
- Enhanced performance and functionality of digital cameras and image sensors
- Compact and space-saving design for various applications
Original Abstract Submitted
A photoelectric conversion device includes a substrate, a photoelectric conversion unit configured to generate charges corresponding to incident light, a floating diffusion portion to which the charges generated by the photoelectric conversion unit are transferred, and a transistor arranged in the substrate, the transistor having a plurality of main electrodes and a gate connected to the floating diffusion portion, the transistor being configured to output a signal corresponding to a potential of the floating diffusion portion from at least one of the plurality of main electrodes. In a plan view with respect to the substrate, the gate has four or more sides. In the plan view, the plurality of main electrodes is adjacent to three or more sides of the gate.
