An optically reconfigurable gate array workable under a strong gamma radiation environment

Shinya Fujisaki, Takumi Fujimori, Minoru Watanabe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Optically reconfigurable gate arrays (ORGAs) have been under development for use as radiation-hardened devices. The ORGAs are a type of field programmable gate array (FPGA). However, by introducing an optical holographic memory technology onto currently available semiconductor technology, the radiation tolerances of ORGAs could be increased drastically. The total-ionizing-dose tolerance of the ORGA VLSI has reached over 400 Mrad, which is 400 times higher radiation tolerance than current radiation-hardened VLSIs. Moreover, we have developed a radiation-hardened power supply unit based on lithium-ion battery cells. For this experiment, we have demonstrated that an ORGA powered by the radiation-hardened power supply unit can function correctly for 24 hr at a dose rate of 15.3-22 rad/s (Si) using a Co60 gamma radiation source.

Original languageEnglish
Title of host publication2019 IEEE Workshop on Microelectronics and Electron Devices, WMED 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages32-36
Number of pages5
ISBN (Electronic)9781538605714
DOIs
Publication statusPublished - May 14 2019
Externally publishedYes
Event17th Annual IEEE Workshop on Microelectronics and Electron Devices, WMED 2019 - Boise, United States
Duration: Apr 26 2019 → …

Publication series

NameIEEE Workshop on Microelectronics and Electron Devices, WMED
Volume2019-April
ISSN (Print)1947-3834
ISSN (Electronic)1947-3842

Conference

Conference17th Annual IEEE Workshop on Microelectronics and Electron Devices, WMED 2019
Country/TerritoryUnited States
CityBoise
Period4/26/19 → …

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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