Method and apparatus for increasing light absorption in an...

Details Method and apparatus for increasing light absorption in an... Method and apparatus for increasing light absorption in an...

2007-06-28

2009-06-02

Porta, David P (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

C250S370090, C250S36100C

Reexamination Certificate

active

07541596

ABSTRACT:
A system and method for applying a layer of material in the image sensor fabrication process in order to increase the absorption of specific range light spectrum by the image sensor is described. The mechanism adopted is by converting light rays from higher energy range (shorter wavelength) to lower energy range (longer wavelength) such that the light absorption by the image sensor can be increased.

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Sivakumar, S. et al., “Red, Green, and Blue Light Through Cooperative Up-Conversion in Sol-Gel Thin Films Made with Yb0.80La0.05F3Nanoparticles,” Journal of Display Technology, vol. 3, No. 2, Jun. 2007, pp. 176-183.
European Search Report, Oct. 30, 2007, Omnivision Technologies, Inc.

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