Producing phototransistors in a standard digital CMOS technology

Producing phototransistors in a standard digital CMOS technology

Development of a standard CMOS fingerprint identification system has necessitated the search for a photodetector with the optimum performance of responsivity, crosstalk, dynamic range, and matching parameters. Pixel resolution is also important in order that fingerprint features on the order of 80 /...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Sandage, R.W., Connelly, J.A.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
CMOS process
CMOS technology
Crosstalk
Dynamic range
Fingerprint recognition
Photoconductivity
Photodetectors
Photodiodes
Phototransistors
Standards development
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Beschreibung
Zusammenfassung:Development of a standard CMOS fingerprint identification system has necessitated the search for a photodetector with the optimum performance of responsivity, crosstalk, dynamic range, and matching parameters. Pixel resolution is also important in order that fingerprint features on the order of 80 /spl mu/m may be detected. This paper discusses six phototransistor configurations easily produced in CMOS technology and compares their experimental performance.
DOI:10.1109/ISCAS.1996.539906