IMAGE SENSOR INTEGRATED CHIP AND METHOD FOR FORMING THE SAME
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United States of America Patent
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Issued Date -
Jul 6, 2023
app pub date -
Feb 16, 2022
filing date -
Jan 4, 2022
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Abstract
The disclosure provides an image sensor integrated chip and a method for forming the same. The image sensor integrated chip includes a substrate, an isolation structure, an image sensing element, a gate structure, a first dielectric layer, and a reflective layer. The substrate includes a pixel region. The isolation structure is disposed in the substrate and is configured at opposite sides of the pixel region. The image sensing element is disposed in the pixel region of the substrate. The gate structure is disposed on the pixel region of the substrate. The first dielectric layer is disposed above the pixel region of the substrate and covers sidewalls and a portion of a top surface of the gate structure. The reflective layer is disposed on the first dielectric layer. The reflective layer overlaps with the image sensing element and the portion of the top surface of the gate structure in a first direction perpendicular to a surface of the substrate.
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