Television – Camera – system and detail – Solid-state image sensor
Patent
1996-04-18
1999-08-03
Garber, Wendy
Television
Camera, system and detail
Solid-state image sensor
348308, H04N 314
Patent
active
059331909
ABSTRACT:
A pixel structure for CMOS imaging applications, the pixel structure including a photosensitive element, a load transistor in series with the photosensitive element, a first reading transistor, coupled to the photosensitive element and to the load transistor, for reading out signals acquired in the photosensitive element and converting the signals to a voltage drop across the load transistor. The gate length of at least the load transistor is increased by at least 10% compared to a gate length of transistors manufactured according to layout rules imposed by a CMOS manufacturing process, thereby increasing the light sensitivity of the pixel structure.
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"Pixel Structure with Logarithmic Response for Intelligent and Flexible Imager Architectures" Dierickx, N. Ricquier, Microelectronic Engineering, vol. 19, No. 1-4, Sep. 1992.
Dierickx Bart
Ricquier Nico
Garber Wendy
IMEC vzw
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