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Large-area low-noise Single-Photon Avalanche Diodes in standard CMOS

  • University of Maryland, College Park

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

11 Scopus citations

Abstract

We report a Single Photon Avalanche Diode (SPAD) in standard CMOS with a physical implementation that offers high fill factor and very low Dark Count Rate (DCR). The demonstrated suppression of the Dark Count is achieved through alterations made to the structure of the SPAD without any modifications in the fabrication process. The structure of the device consists of a perimeter gated junction with a geometrical profile that is tailored for high gettering efficiency. We previously demonstrated DCR of 20 KHz for a 50 μm diameter perimeter gated circular SPAD (2 orders of magnitude DCR reduction). Using our current design we report DCRs of 10 Hz for a 1200 μm2 SPAD operated at an excess bias of up to 1V. The reported DCRs are obtained for SPADs fabricated in single-well standard CMOS and operated at room temperature.

Original languageEnglish
Title of host publicationIEEE SENSORS 2012 - Proceedings
DOIs
StatePublished - 2012
Event11th IEEE SENSORS 2012 Conference - Taipei, Taiwan, Province of China
Duration: Oct 28 2012Oct 31 2012

Publication series

NameProceedings of IEEE Sensors

Conference

Conference11th IEEE SENSORS 2012 Conference
Country/TerritoryTaiwan, Province of China
CityTaipei
Period10/28/1210/31/12

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