Organic semiconductor sensor device
US8569809B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2006 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Jan 7, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K10/46
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.