A 500 dpi capacitive-type CMOS fingerprint sensor with pixel-level adaptive image enhancement scheme

Kwang Hyun Lee, Euisik Yoon

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

A 500 dpi capacitive-type CMOS fingerprint sensor with pixel-level adaptive image enhancement scheme was discussed. It used virtually-grounded metal shields to suppress parasitic capacitances and capacitive switching networks to generate local threshold level. It was found that a 210 × 100 sensor in 0.6 μm CMOS consumed 40 mW at 5 V supply.

Original languageEnglish
Pages (from-to)282-283
Number of pages2
JournalDigest of Technical Papers - IEEE International Solid-State Circuits Conference
Issue numberSUPPL.
Publication statusPublished - 2002 Jan 1
Event2002 IEEE International Solid-State Circuits Conference - San Francisco, CA, United States
Duration: 2002 Feb 32002 Feb 7

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Image enhancement
Pixels
Switching networks
Sensors
Capacitance
Metals

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

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abstract = "A 500 dpi capacitive-type CMOS fingerprint sensor with pixel-level adaptive image enhancement scheme was discussed. It used virtually-grounded metal shields to suppress parasitic capacitances and capacitive switching networks to generate local threshold level. It was found that a 210 × 100 sensor in 0.6 μm CMOS consumed 40 mW at 5 V supply.",
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