Image sensor and method having an anti-reflection stack with...

Details Image sensor and method having an anti-reflection stack with... Image sensor and method having an anti-reflection stack with...

2010-01-27

2011-11-01

Le, Que T (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S216000

Reexamination Certificate

active

08049153

ABSTRACT:
An image sensor pixel that includes a photoelectric conversion unit supported by a substrate and an insulator adjacent to the substrate. The pixel includes a light guide that is located within an opening of the insulator and extends above the insulator such that a portion of the light guide has an air interface. The air interface improves the internal reflection of the light guide. Additionally, the light guide and an adjacent color filter are constructed with a process that optimizes the upper aperture of the light guide. These characteristics of the light guide eliminate the need for a microlens.

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PCT/US08/088077 Written Opinion of the International Search Authority, paragraphs 2.4-2.6 (pp. 8-9), 3.15-3.16 (p. 16), 4.2 (p. 17).
PCT/US08/088077 Initial Publication with ISR.

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