Organic semiconductor sensor device

Details Organic semiconductor sensor device Organic semiconductor sensor device

2005-02-08

2005-02-08

Thomas, Tom (Department: 2815)

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

Organic semiconductor material

C257S252000, C257S414000

Reexamination Certificate

active

06852996

ABSTRACT:
Sensor cells are arranged in an array in an organic semiconductor layer. Row and column select circuitry addresses the cells of the array one cell at a time to determine the presence of an object, such as a fingerprint ridge or valley, contacting or proximate to a sensing surface above each cell. Control circuitry can be provided in a companion silicon chip or in a second layer of organic semiconductor material to communicate with the array and an associated system processor. The array of sensor cells can be fabricated using a flexible polymer substrate that is peeled off and disposed of after contacts have been patterned on the organic semiconductor layer. The organic semiconductor layer can be used with a superimposed reactive interface layer to detect specific chemical substances in a test medium.

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