Thermal and flicker noise improvement in short-channel CMOS detectors

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Integrated circuit (IC) technology has emerged as a suitable platform for infrared (IR) detector development. This technology is however susceptible to on-chip intrinsic noise. By using double-gate MOSFETs for detectors in the near-IR band, noise performance in the readout circuitry is improved, thereby enhancing the overall performance of these detectors. A 1 dB reduction in low-frequency noise is achieved, which is verified through simulations. It is shown that by using short-channel devices that noise improvement is furthermore obtained due to reduction in threshold voltage variation. The double-gate concept is applied in simulation to the three-transistor pixel topology and can also be implemented in other detector topologies such as the four-transistor pixel topology, since readout noise is not limited to specific IR detector topologies. The overall performance of near-IR detectors and the fill factor are significantly improved..

Original languageEnglish
Title of host publicationSensors, MEMS, and Electro-Optical Systems
PublisherSPIE
ISBN (Print)9781628413243
DOIs
Publication statusPublished - 2014
Event3rd South African Conference on Sensors, MEMS, and Electro-Optical Systems, SMEOS 2014 - Skukuza, South Africa
Duration: 17 Mar 201419 Mar 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9257
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference3rd South African Conference on Sensors, MEMS, and Electro-Optical Systems, SMEOS 2014
Country/TerritorySouth Africa
CitySkukuza
Period17/03/1419/03/14

Keywords

  • Charge-coupled devices
  • heterojunctions
  • infrared detectors
  • noise
  • photodetectors

ASJC Scopus subject areas

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

Fingerprint

Dive into the research topics of 'Thermal and flicker noise improvement in short-channel CMOS detectors'. Together they form a unique fingerprint.

Cite this