Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2008-07-16
2010-10-19
Ko, Tony (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C348S272000, C257S432000, C257S291000
Reexamination Certificate
active
07816641
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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Do Thanh-Trung
Tay Hiok-Nam
Candela Microsystems (S) Pte. Ltd.
Irell & Manella, LLP.
Ko Tony
Yorks Ben
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