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The Effects of Gamma Ray Integrated Dose on a Commercial 65-nm SRAM Device | IEEE Journals & Magazine | IEEE Xplore

The Effects of Gamma Ray Integrated Dose on a Commercial 65-nm SRAM Device


Abstract:

This work shows that the static random access memory (SRAM) error rate for a commercial 65-nm device in a dose rate environment can be highly dependent upon the integrate...Show More

Abstract:

This work shows that the static random access memory (SRAM) error rate for a commercial 65-nm device in a dose rate environment can be highly dependent upon the integrated dose (dose rate \times pulse duration). While the typical metric for such testing is dose rate upset (DRU) level in rad(Si)/s, a series of dose rate experiments at Little Mountain Test Facility (LMTF) shows dependence on the integrated dose. The error rate is also found to be dependent on the core voltage, and the preradiation value of the bits. We believe that these effects are explained by a well charge depletion caused by gamma ray photocurrent.
Published in: IEEE Transactions on Nuclear Science ( Volume: 70, Issue: 8, August 2023)
Page(s): 2008 - 2017
Date of Publication: 14 June 2023

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