Filter architecture for a photosensitive chip

Details Filter architecture for a photosensitive chip Filter architecture for a photosensitive chip

1996-02-20

1997-02-18

Tran, Minhloan

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Charge transfer device

257432, 257433, 257443, 257440, 257643, H01L 27148

Patent

active

056043627

ABSTRACT:
In a photosensitive chip suitable for full-color imaging, separate photosites on the chip correspond to different primary colors in an original image. Each primary-color photosite is filtered with a polyimide doped to a particular primary color. The red-filtering layer and the blue-filtering layer are left on the non-photosensitive portions of the main surface of the chip, and together serve as a non-reflective area which prevents stray reflections from the chip. The chip is further provided with a base layer of infrared-filtering polyimide.

REFERENCES:
patent: 5340619 (1994-08-01), Chen et al.

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