US Patent Application 18360214. METAL GRID STRUCTURE TO IMPROVE IMAGE SENSOR PERFORMANCE simplified abstract
Contents
METAL GRID STRUCTURE TO IMPROVE IMAGE SENSOR PERFORMANCE
Organization Name
Taiwan Semiconductor Manufacturing Company, Ltd.==Inventor(s)==
[[Category:Ming Chyi Liu of Hsinchu City (TW)]]
[[Category:Jiech-Fun Lu of Madou Township (TW)]]
METAL GRID STRUCTURE TO IMPROVE IMAGE SENSOR PERFORMANCE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18360214 titled 'METAL GRID STRUCTURE TO IMPROVE IMAGE SENSOR PERFORMANCE
Simplified Explanation
- The patent application is for an image sensor with a unique design. - The image sensor includes multiple photodetectors placed within a substrate. - A metal grid layer is placed over the substrate, covering a central pixel region. - The metal grid layer extends continuously from the central pixel region to a peripheral pixel region that surrounds the central region. - An upper metal structure is placed over the metal grid layer, covering the peripheral pixel region. - The upper metal structure is positioned to the side of the metal grid structure. - The lower surface of the upper metal structure is vertically aligned with the upper surface of the metal grid structure.
Original Abstract Submitted
Various embodiments of the present disclosure are directed towards an image sensor. The image sensor comprises a plurality of photodetectors disposed within a substrate. A metal grid layer is disposed over the substrate. The metal grid layer comprises a metal grid structure overlying a central pixel region of the substrate. The metal grid layer continuously extends from the central pixel region to a peripheral pixel region of the substrate that laterally encloses the central pixel region. An upper metal structure is disposed over the metal grid layer. The upper metal structure overlies the peripheral pixel region. The upper metal structure is laterally offset from the metal grid structure. A lower surface of the upper metal structure is disposed vertically over an upper surface of the metal grid structure.
