Optimization of noise and responsivity in CMOS active pixel sensors for detection of ultra low light levels

Orly Yadid-Pecht, Barmak Mansoorian, Eric R. Fossum, Bedabrata Pain

Research output: Contribution to journalConference articlepeer-review

49 Scopus citations

Abstract

In this paper, we present results of the investigation of the design and operation of CMOS active pixel sensors for detection of ultra-low light levels. We present a detailed noise model of APS pixel and signal chain. Utilizing the noise model, we have developed APS pixel designs that can achieve ultra-low noise and high responsivity. We present results from two test chips, that indicate (1) that less than 5 electrons of read noise is possible with CMOS APS by reducing the size of the pixel transistors, and (2) that high responsivity can be achieved when the fill-factor of the photodiode is reduced.

Original languageEnglish
Pages (from-to)125-136
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3019
DOIs
StatePublished - 25 Apr 1997
Externally publishedYes
EventSolid State Sensor Arrays: Development and Applications 1997 - San Jose, United States
Duration: 8 Feb 199714 Feb 1997

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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