A Novel Circuit and Layout Design of SEU Tolerant SRAM in a 65nm CMOS Process

Xiaoling Lai, Yangming Guo, Jian Zhang, Ting Ju, Qi Zhu, Guochang Zhou

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

2 Scopus citations

Abstract

In order to address the vulnerability of embedded SRAMs to single event soft errors due to high-energy particles in a space radiation environment, this paper proposes a novel circuit d layout design of SEU tolerant SRAM based on a DICE structure. A DICE SRAM design with a depth of 4096 and a bit width of 12 is completed based on a commercial 65nm bulk silicon CMOS process, implemented using 3 layers of metal, with an area only 1.6 times that of a non-DICE SRAM. Circuit and irradiation simulation results illustrate that the SRAM has an access time of less than 2.2ns and a single event upset cross section of 1.74×10-13 cm2/bit at an equivalent LET value of 55.3 MeV/mg/cm2 of particle incidence. The SRAM circuit's performance and resistance to single-particle soft errors can significantly reduce the area, wiring resources and timing overhead associated with hardening the embedded SRAM circuit in radiation hardened ASIC designs.

Original languageEnglish
Title of host publicationProceedings of the 18th IEEE Conference on Industrial Electronics and Applications, ICIEA 2023
EditorsWenjian Cai, Guilin Yang, Jun Qiu, Tingting Gao, Lijun Jiang, Tianjiang Zheng, Xinli Wang
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages522-526
Number of pages5
ISBN (Electronic)9798350312201
DOIs
StatePublished - 2023
Event18th IEEE Conference on Industrial Electronics and Applications, ICIEA 2023 - Ningbo, China
Duration: 18 Aug 202322 Aug 2023

Publication series

NameProceedings of the 18th IEEE Conference on Industrial Electronics and Applications, ICIEA 2023

Conference

Conference18th IEEE Conference on Industrial Electronics and Applications, ICIEA 2023
Country/TerritoryChina
CityNingbo
Period18/08/2322/08/23

Keywords

  • Circuit level
  • DICE SRAM
  • Heavy ions
  • Layout level
  • Radiation-hardness
  • Single event upset

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