
Proceedings Paper
A three-phase time-correlation image sensor using pinned photodiode active pixelsFormat | Member Price | Non-Member Price |
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Paper Abstract
A time correlation (TC) image sensor is a device that produces 3-phase time-correlated signals between the incident
light intensity and three reference signals. A conventional implementation of the TC image sensor using a standard
CMOS technology works at low frequency and with low sensitivity. In order to achieve higher modulation frequency and
high sensitivity, the TC image sensor with a dual potential structure using a pinned diode is proposed. The dual potential
structure is created by changing the impurity doping concentration in the two different potential regions. In this structure,
high-frequency modulation can be achieved, while maintaining a sufficient light receiving area. A prototype TC image
sensor with 366×390pixels is implemented with 0.18-μm 1P4M CMOS image sensor technology. Each pixel with the
size of 12μm×12μm has one pinned photodiode with the dual potential structure, 12 transistors and 3capacitors to
implement three-parallel-output active pixel circuits. A fundamental operation of the implemented TC sensor is
demonstrated.
Paper Details
Date Published: 25 January 2010
PDF: 7 pages
Proc. SPIE 7536, Sensors, Cameras, and Systems for Industrial/Scientific Applications XI, 75360S (25 January 2010); doi: 10.1117/12.846532
Published in SPIE Proceedings Vol. 7536:
Sensors, Cameras, and Systems for Industrial/Scientific Applications XI
Erik Bodegom; Valérie Nguyen, Editor(s)
PDF: 7 pages
Proc. SPIE 7536, Sensors, Cameras, and Systems for Industrial/Scientific Applications XI, 75360S (25 January 2010); doi: 10.1117/12.846532
Show Author Affiliations
Sangman Han, Shizuoka Univ. (Japan)
Tomohiro Iwahori, Shizuoka Univ. (Japan)
Tomonari Sawada, Shizuoka Univ. (Japan)
Tomohiro Iwahori, Shizuoka Univ. (Japan)
Tomonari Sawada, Shizuoka Univ. (Japan)
Published in SPIE Proceedings Vol. 7536:
Sensors, Cameras, and Systems for Industrial/Scientific Applications XI
Erik Bodegom; Valérie Nguyen, Editor(s)
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