Patent · US Active

CCD-based multi-transistor active pixel sensor array

US8772698B2 · kind B2 · utility

2Cited by
158References
26Claims
0Family size

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Inventors

Key dates

Filing dateJun 30, 2011
Grant dateJul 8, 2014
Priority date—
Expiry dateOct 10, 2032

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T436/25875
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A floating electrode is used to detect ions in close proximity to the electrode. The electrode is charge coupled to other electrodes and to other transistors to form a pixel that can be placed into an array for addressable readout. It is possible to obtain gain by accumulating charge into another electrode or onto a floating diffusion (FD) node or directly onto the column line. It is desirable to achieve both a reduction in pixel size as well as increase in signal level. To reduce pixel size, ancillary transistors may be eliminated and a charge storage node with certain activation and deactivation sequences may be used.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.