Use of vertically stacked photodiodes in a gene chip system

Details Use of vertically stacked photodiodes in a gene chip system Use of vertically stacked photodiodes in a gene chip system

2008-01-08

2008-01-08

Warden, Jill (Department: 1743)

Chemistry: analytical and immunological testing

Optical result

With fluorescence or luminescence

C250S458100, C438S001000, C435S029000, C435S288400, C356S246000

Reexamination Certificate

active

07316930

ABSTRACT:
An improved gene chip system is arranged with vertically stacked photodiodes for sensing luminescence of genetic material. When genetic samples are combined with a reagent in an array of wells on a substrate, the reaction may cause light of a specified color to emanate from certain well locations. Vertically stacked photodiodes are provided that sense each color and intensity of the light at each well location. The vertically stacked photodiodes provide an image sensor that may be integrally constructed with the substrate and wells used for a gene chip system. The illumination data, which includes which wells are luminescent, the color of light, and the intensity of light in each illuminated cell, may be analyzed to determine properties of the genetic sample.

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