• DocumentCode
    2982794
  • Title

    A capacitive fingerprint sensor with low-temperature poly-Si TFTs

  • Author

    Hashido, R. ; Suzuki, A. ; Iwata, A. ; Ogawa, T. ; Okamoto, T. ; Satoh, Y. ; Inoue, M.

  • Author_Institution
    Adv. Technol. R&D Center, Mitsubishi Electr. Corp., Hyogo, Japan
  • fYear
    2001
  • fDate
    7-7 Feb. 2001
  • Firstpage
    250
  • Lastpage
    251
  • Abstract
    A capacitive fingerprint sensor using low-temperature poly-Si TFTs succeeds in fingerprint certification. The array area is 19.2×15 mm/sup 2/. Resolution is 423 dpi (60 μm pitch) using a structure with only one transistor and one sensor plate.
  • Keywords
    arrays; capacitive sensors; field effect integrated circuits; fingerprint identification; silicon; thin film transistors; 1.2 W; 5 V; 500 kHz; Si; capacitive fingerprint sensor; fingerprint certification; low-temperature poly-Si TFTs; pixel transistor; polysilicon TFT; sensor array; sensor plate; soda glass substrate; Capacitive sensors; Costs; Electric potential; Fingerprint recognition; Fingers; Glass; Parasitic capacitance; Sensor arrays; Thin film transistors; Threshold voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid-State Circuits Conference, 2001. Digest of Technical Papers. ISSCC. 2001 IEEE International
  • Conference_Location
    San Francisco, CA, USA
  • ISSN
    0193-6530
  • Print_ISBN
    0-7803-6608-5
  • Type

    conf

  • DOI
    10.1109/ISSCC.2001.912625
  • Filename
    912625