A Feasibility Study on Ferroelectric Shadow SRAMs Based on Variability-Aware Design Optimization
A feasibility study on Ferroelectric Shadow SRAMs (FE-SRAMs) was performed using circuit simulations. To take into account design constraints set by the cell transistor variability, a simple operation margin search algorithm was proposed and used, which requires only pass/fail information from multi...
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Journal of the Electron Devices Society |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8883223/ |
| _version_ | 1818331685682413568 |
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| author | Kiyoshi Takeuchi Masaharu Kobayashi Toshiro Hiramoto |
| author_facet | Kiyoshi Takeuchi Masaharu Kobayashi Toshiro Hiramoto |
| author_sort | Kiyoshi Takeuchi |
| collection | DOAJ |
| description | A feasibility study on Ferroelectric Shadow SRAMs (FE-SRAMs) was performed using circuit simulations. To take into account design constraints set by the cell transistor variability, a simple operation margin search algorithm was proposed and used, which requires only pass/fail information from multiple transient simulations. It was found that stable dynamic recall operations can be achieved by using small enough ferroelectric capacitors, and that non-volatile write energy of well below 10 fJ/bit can be expected, adding minimal area penalty and performance degradation to the base SRAM cell. Scalability to advanced technology nodes is also anticipated. The results show that the FE-SRAM would be an ideal non-volatile memory solution for ultra-low power applications, such as sensor networks powered by energy harvesting. |
| first_indexed | 2024-12-13T13:23:47Z |
| format | Article |
| id | doaj.art-2bfaae80b59d4625b25fab595845bf7a |
| institution | Directory Open Access Journal |
| issn | 2168-6734 |
| language | English |
| last_indexed | 2024-12-13T13:23:47Z |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of the Electron Devices Society |
| spelling | doaj.art-2bfaae80b59d4625b25fab595845bf7a2022-12-21T23:44:21ZengIEEEIEEE Journal of the Electron Devices Society2168-67342019-01-0171284129210.1109/JEDS.2019.29495648883223A Feasibility Study on Ferroelectric Shadow SRAMs Based on Variability-Aware Design OptimizationKiyoshi Takeuchi0https://orcid.org/0000-0002-8392-1029Masaharu Kobayashi1https://orcid.org/0000-0002-7945-6136Toshiro Hiramoto2https://orcid.org/0000-0001-9469-2631Institute of Industrial Science, The University of Tokyo, Tokyo, JapanInstitute of Industrial Science, The University of Tokyo, Tokyo, JapanInstitute of Industrial Science, The University of Tokyo, Tokyo, JapanA feasibility study on Ferroelectric Shadow SRAMs (FE-SRAMs) was performed using circuit simulations. To take into account design constraints set by the cell transistor variability, a simple operation margin search algorithm was proposed and used, which requires only pass/fail information from multiple transient simulations. It was found that stable dynamic recall operations can be achieved by using small enough ferroelectric capacitors, and that non-volatile write energy of well below 10 fJ/bit can be expected, adding minimal area penalty and performance degradation to the base SRAM cell. Scalability to advanced technology nodes is also anticipated. The results show that the FE-SRAM would be an ideal non-volatile memory solution for ultra-low power applications, such as sensor networks powered by energy harvesting.https://ieeexplore.ieee.org/document/8883223/Energy harvestingferroelectric memorynonvolatile memorysensor networkshadow RAMshadow SRAM |
| spellingShingle | Kiyoshi Takeuchi Masaharu Kobayashi Toshiro Hiramoto A Feasibility Study on Ferroelectric Shadow SRAMs Based on Variability-Aware Design Optimization IEEE Journal of the Electron Devices Society Energy harvesting ferroelectric memory nonvolatile memory sensor network shadow RAM shadow SRAM |
| title | A Feasibility Study on Ferroelectric Shadow SRAMs Based on Variability-Aware Design Optimization |
| title_full | A Feasibility Study on Ferroelectric Shadow SRAMs Based on Variability-Aware Design Optimization |
| title_fullStr | A Feasibility Study on Ferroelectric Shadow SRAMs Based on Variability-Aware Design Optimization |
| title_full_unstemmed | A Feasibility Study on Ferroelectric Shadow SRAMs Based on Variability-Aware Design Optimization |
| title_short | A Feasibility Study on Ferroelectric Shadow SRAMs Based on Variability-Aware Design Optimization |
| title_sort | feasibility study on ferroelectric shadow srams based on variability aware design optimization |
| topic | Energy harvesting ferroelectric memory nonvolatile memory sensor network shadow RAM shadow SRAM |
| url | https://ieeexplore.ieee.org/document/8883223/ |
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