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Title: Analytical Bit-Error Model of NAND Flash Memories for Dosimetry Application

Journal Article · · IEEE Transactions on Nuclear Science
 [1];  [1];  [2];  [2];  [1];  [1]
  1. Univ. of Alabama, Huntsville, AL (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

In this work, we provide an analytical model for the total ionizing dose (TID) effects on the bit error statistics of commercial flash memory chips. We have validated the model with experimental data collected by irradiating several commercial NAND flash memory chips from different technology nodes. We find that our analytical model can project bit errors at higher TID values (~ 20 krad(Si)) from measured data at lower TID values (<1 krad(Si)). Based on our model and the measured data, we have formulated basic design rules for using a commercial flash memory chip as a dosimeter. We discuss the impact of NAND chip-to-chip variability, noise margin and the intrinsic errors on the dosimeter design using detailed experimentation.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE); USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
Grant/Contract Number:
NA0003525; AC07-051D14517; 1929099
OSTI ID:
1830527
Report Number(s):
SAND-2021-14212J; 701484; TRN: US2216504
Journal Information:
IEEE Transactions on Nuclear Science, Vol. 69, Issue 3; ISSN 0018-9499
Publisher:
IEEECopyright Statement
Country of Publication:
United States
Language:
English

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On the Combined Effect of Silicon Oxide Thickness and Boron Implantation Under the Gate in MOSFET Dosimeters journal March 2020
Radiation-Induced Error Mitigation by Read-Retry Technique for MLC 3-D NAND Flash Memory journal May 2021

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