Silicon dosimeters based on Floating Gate Sensor: Design, implementation and characterization

U. Gatti, C. Calligaro, A. Parlato, E. A.G. Tomarchio, E. Pikhay, Y. Roizin

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

Abstract

A rad-hard monolithic dosimeter has been implemented and characterized in a standard 180 nm CMOS technology. The radiation sensor (C-sensor) is based on a Floating Gate (FG) MOS discharge principle. The output current is processed by a current-to-voltage (I/V) interface and then converted by a 5-bit flash ADC. The dosimeter is re-usable (FG can be recharged) and can detect a dose up to 1krad (Si) with a resolution of 30rad (Si) typical over temperature 0 to 85°C range. The ADC allows easy further signal processing for calibration and averaging, etc. The power consumption of C-sensor plus I/V interface is < 2mW from a 5 V power supply. The overall layout area is less than 0.25mm2. The Radiation-Hardened-By-Design (RHBD) approach guarantees that the absorbed dose does not degrade the circuitry.

Original languageEnglish
Title of host publication20th IEEE Mediterranean Electrotechnical Conference, MELECON 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages388-392
Number of pages5
ISBN (Electronic)9781728152004
DOIs
StatePublished - Jun 2020
Externally publishedYes
Event20th IEEE Mediterranean Electrotechnical Conference, MELECON 2020 - Palermo, Italy
Duration: 15 Jun 202018 Jun 2020

Publication series

Name20th IEEE Mediterranean Electrotechnical Conference, MELECON 2020 - Proceedings

Conference

Conference20th IEEE Mediterranean Electrotechnical Conference, MELECON 2020
Country/TerritoryItaly
CityPalermo
Period15/06/2018/06/20

Keywords

  • Analog-to-Digital converter
  • Dosimeter
  • Floating Gate MOS
  • current-to-voltage interfaces
  • edgeless transistors (ELT)
  • radiation hardening by design (RHBD)
  • total ionizing dose (TID)

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