摘要 |
Disclosed herein an image sensor chip, including a substrate having at least one via extending through at least one inter layer dielectric (ILD); a first conductive layer over the ILD, wherein the first conductive layer has a first thickness; a second conductive layer over the first conductive layer, wherein the second conductive layer has a second thickness of less than the first thickness; a polymer layer over the second conductive layer, the polymer layer including a cavity; a plurality of cavity components in the cavity; and an optically transparent layer contacting the polymer layer and covering the cavity.
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