Image sensor microlens structures and methods of forming the...

Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Charge transfer device

Reexamination Certificate

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C257S233000, C257S432000, C257S440000

Reexamination Certificate

active

07842980

ABSTRACT:
An image sensor includes a light receiving device in a substrate, a color filter over the light receiving device, a buffer film over the color filter, and a microlens on the buffer film. The microlens has a concave bottom face and a convex top face. The buffer film has a substantially flat top outside the microlens and has a convex top face below the microlens.

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