| Presentation | 2007-10-17 Miniaturization of a 2×2 switch cell toward realization of large-scale SFQ switches Takahiro NAKAGAWA, Yoshihito HASHIMOTO, Yoshio KAMEDA, Shinichi YOROZU, Mutsuo HIDAKA, Kazunori MIYAHARA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have been developing network switches as a potential application of single-flux-quantum (SFQ) circuits. In order to realize large-scale switches, it is necessary to reduce the area of 2×2 switches that are elemental circuits of switches. In this research, we newly designed a 2×2 switch cell as an analog circuit, instead of realizing it by combining our standard library cells. The 2×2 switch cell contains 74 junctions, occupies 160μm×200μm, and consumes 16.8μW. The area of the 2×2 switch cell was significantly reduced by 69% compared to 2×2 switch designed by our conventional method (using our standard cells). The 2×2 switch cell was designed to be directly connected with passive transmission lines (PTLs) by integrating PTL drivers and receivers in the switch cell. We confirmed proper operation of the 2×2 switch cell at 40 GHz by the on-chip test. We also designed a 4×4 cross-bar switch and an 8×8 cross-bar switch by using the 2×2 switch cells. We confirmed full operation of the 4×4 switch and the 8×8 switch. The area of the 4×4 switch and the 8×8 switch were reduced by about a half compared to switches implemented by combining standard cells. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Single flux quantum (SFQ) / Switch / Miniaturization / Passive transmission line (PTL) / Cell-based design / On-chip test |
| Paper # | SCE2007-24 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 2007/10/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Superconductive Electronics (SCE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Miniaturization of a 2×2 switch cell toward realization of large-scale SFQ switches |
| Sub Title (in English) | |
| Keyword(1) | Single flux quantum (SFQ) |
| Keyword(2) | Switch |
| Keyword(3) | Miniaturization |
| Keyword(4) | Passive transmission line (PTL) |
| Keyword(5) | Cell-based design |
| Keyword(6) | On-chip test |
| 1st Author's Name | Takahiro NAKAGAWA |
| 1st Author's Affiliation | Graduate School of Information Environment, Tokyo Denki University() |
| 2nd Author's Name | Yoshihito HASHIMOTO |
| 2nd Author's Affiliation | SRL, ISTEC |
| 3rd Author's Name | Yoshio KAMEDA |
| 3rd Author's Affiliation | SRL, ISTEC |
| 4th Author's Name | Shinichi YOROZU |
| 4th Author's Affiliation | SRL, ISTEC |
| 5th Author's Name | Mutsuo HIDAKA |
| 5th Author's Affiliation | SRL, ISTEC |
| 6th Author's Name | Kazunori MIYAHARA |
| 6th Author's Affiliation | Graduate School of Information Environment, Tokyo Denki University |
| Date | 2007-10-17 |
| Paper # | SCE2007-24 |
| Volume (vol) | vol.107 |
| Number (no) | 259 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |