18135637. IMAGE SENSOR AND ELECTRONIC SYSTEM INCLUDING THE SAME simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)
IMAGE SENSOR AND ELECTRONIC SYSTEM INCLUDING THE SAME
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IMAGE SENSOR AND ELECTRONIC SYSTEM INCLUDING THE SAME - A simplified explanation of the abstract
This abstract first appeared for US patent application 18135637 titled 'IMAGE SENSOR AND ELECTRONIC SYSTEM INCLUDING THE SAME
Simplified Explanation
The abstract describes an image sensor with a color unit pixel structure that includes sub-pixels arranged in a matrix on a substrate, with a pixel isolation structure to separate the sub-pixels. The isolation structure consists of an outer isolation film surrounding the color unit pixel, inner isolation films between adjacent sub-pixels, doped isolation liners on the sidewalls of the inner isolation films, and doped isolation pillars contacting selected sub-pixels to define the size of each sub-pixel.
- Color unit pixel structure with sub-pixels arranged in a matrix
- Pixel isolation structure to separate sub-pixels
- Outer isolation film surrounding the color unit pixel
- Inner isolation films between adjacent sub-pixels
- Doped isolation liners on sidewalls of inner isolation films
- Doped isolation pillars contacting selected sub-pixels to define sub-pixel size
Potential Applications
- Digital cameras - Smartphone cameras - Surveillance cameras - Medical imaging devices
Problems Solved
- Improved isolation of sub-pixels - Enhanced image quality - Reduction of crosstalk between sub-pixels
Benefits
- Higher resolution images - Better color accuracy - Improved overall image sensor performance
Original Abstract Submitted
An image sensor includes a color unit pixel comprising sub-pixels arranged in an m×n matrix on a substrate, and a pixel isolation structure isolating the sub-pixels from each other in the color unit pixel. The pixel isolation structure includes an outer isolation film surrounding the color unit pixel, at least one inner isolation film including a portion between two sub-pixels, which are adjacent to each other, among the sub-pixels, a doped isolation liner covering opposite sidewalls of the at least one inner isolation film, and at least one doped isolation pillar contacting at least two sub-pixels selected from the sub-pixels. The at least one doped isolation pillar and the at least one inner isolation film are arranged to define a size of a partial region of each of the sub-pixels.
