Patent ID: 9666631
Date: 2017-05-30
CPC Classifications: H01L,H04N

Claim:
1. An image sensor pixel for use in a high dynamic range image sensor, the image sensor pixel comprising: a first photodiode disposed in a semiconductor material; a second photodiode disposed in the semiconductor material and having a second full well capacity substantially equal to a first full well capacity of the first photodiode, wherein the first photodiode is disposed adjacent to the second photodiode in the semiconductor material; a first microlens disposed over the first photodiode to direct image light toward the first photodiode; a second microlens disposed over the second photodiode to direct the image light toward the second photodiode, wherein the second microlens is substantially identical to the first microlens; and a filter disposed between the second microlens and the second photodiode to reduce an intensity of a first color of the image light incident upon the second photodiode, wherein the filter does not substantially affect the first color of the image light directed toward the first photodiode, and wherein less of the image light is transmitted to the second photodiode than the first photodiode.