| Presentation | 2016-01-21 Evaluation of various memory cells designed for SFQ mask ROM Kazunao Sawada, Tomoki Watanabe, Hiroshi Shimada, Yoshinao Mizugaki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We developed memory cells for an SFQ mask ROM that will be implemented with an SFQ-D/A converter, a candidate of next-generation AC voltage standards. The area occupancy of the SFQ mask ROM is required to be small enough for implementation on the same chip with the SFQ-D/A converter. We had first designed and tested SFQ ROM cells using an existing library. Although they worked correctly, we found that the cell sizes were large, not acceptable for high-density integration. Hence, we developed small ROM cells dedicated for the SFQ mask ROM. The cell areas are 65% reduced by eliminating verbose elements and unused spaces. We have measured test circuits fabricated using a Nb integration technology, and confirmed that the bias margins are almost the same magnitude as the simulation results. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Mask ROM / Single Flux Quantum / Josephson effect / Superconducting integrated circuits / NbAlO2/Nb |
| Paper # | SCE2015-40 |
| Date of Issue | 2016-01-14 (SCE) |
| Conference Information | |
| Committee | SCE |
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| Conference Date | 2016/1/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Nobuyuki Yoshikawa(Yokohama National Univ.) |
| Vice Chair | |
| Secretary | (Yokohama National Univ.) |
| Assistant | Hiroyuki Akaike(Nagoya Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Superconductive Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation of various memory cells designed for SFQ mask ROM |
| Sub Title (in English) | |
| Keyword(1) | Mask ROM |
| Keyword(2) | Single Flux Quantum |
| Keyword(3) | Josephson effect |
| Keyword(4) | Superconducting integrated circuits |
| Keyword(5) | NbAlO2/Nb |
| 1st Author's Name | Kazunao Sawada |
| 1st Author's Affiliation | University of Electro-Communications(UEC) |
| 2nd Author's Name | Tomoki Watanabe |
| 2nd Author's Affiliation | University of Electro-Communications(UEC) |
| 3rd Author's Name | Hiroshi Shimada |
| 3rd Author's Affiliation | University of Electro-Communications/Japan Science and Technology Agency(UEC/JST) |
| 4th Author's Name | Yoshinao Mizugaki |
| 4th Author's Affiliation | University of Electro-Communications/Japan Science and Technology Agency(UEC/JST) |
| Date | 2016-01-21 |
| Paper # | SCE2015-40 |
| Volume (vol) | vol.115 |
| Number (no) | SCE-412 |
| Page | pp.pp.23-28(SCE), |
| #Pages | 6 |
| Date of Issue | 2016-01-14 (SCE) |