Novel fingerprint scanning arrays using polysilicon TFT's on glass and polymer substrates

Novel fingerprint scanning arrays based upon capacitance sensing have been made. Each sensor element consists of a capacitor electrode and two poly-Si thin film transistors for addressing and read out. The devices were fabricated on glass, polyimide and polyethersulphone substrates using a low tempe...

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Published in:IEEE electron device letters 1997-01, Vol.18 (1), p.19-20
Main Authors: Young, N.D., Harkin, G., Bunn, R.M., McCulloch, D.J., Wilks, R.W., Knapp, A.G.
Format: Article
Language:English
Subjects:
Capacitance
Capacitive sensors
Capacitors
Electrodes
Fingerprint recognition
Glass
Polyimides
Substrates
Thin film sensors
Thin film transistors
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creator Young, N.D.
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description Novel fingerprint scanning arrays based upon capacitance sensing have been made. Each sensor element consists of a capacitor electrode and two poly-Si thin film transistors for addressing and read out. The devices were fabricated on glass, polyimide and polyethersulphone substrates using a low temperature (
doi_str_mv 10.1109/55.553063
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source IEEE Electronic Library (IEL) Journals
subjects Capacitance
Capacitive sensors
Capacitors
Electrodes
Fingerprint recognition
Glass
Polyimides
Substrates
Thin film sensors
Thin film transistors
title Novel fingerprint scanning arrays using polysilicon TFT's on glass and polymer substrates
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