Method for fabricating an image-sensor structure
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United States of America Patent
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Dec 26, 2017
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N/A
app pub date -
May 8, 2017
filing date -
Mar 17, 2015
priority date (Note) -
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Abstract
An image-sensor structure is provided. The image-sensor structure includes a substrate having a first surface and a second surface and including a sensing area, a first metal layer formed above the first surface of the substrate and surrounding the sensing area, and a protection layer formed above the first surface of the substrate and overlying the sensing area and a part of the first metal layer to expose an exposed area of the first metal layer. The exposed area includes a first portion having a first width, a second portion having a second width, a third portion having a third width and a fourth portion having a fourth width.
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