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| Presentation | 2014-04-17 15:15 [Invited Lecture] Fabrication of a 99%-Energy-Less Nonvolatile Multi-Functional CAM Chip Using Hierarchical Power Gating for a Massively-Parallel Full-Text-Search Engine Shoun Matsunaga (Tohoku Univ.), Noboru Sakimura, Ryusuke Nebashi, Tadahiko Sugibayashi (NEC), Masanori Natsui, Akira Mochizuki, Tetsuo Endoh, Hideo Ohno, Takahiro Hanyu (Tohoku Univ.)  ICD2014-8 Link to ES Tech. Rep. Archives: ICD2014-8 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We demonstrate a 1-Mb nonvolatile TCAM-based search engine using 90-nm CMOS and perpendicular MTJ technologies for an ultra low-energy full-text search system. We newly developed a nonvolatile TCAM cell circuit for text-search use. Extending the assignments of a 2-bit storage-data pattern and a 2-bit input-data pattern enables a fine-grained power gating scheme to work in the nonvolatile TCAM word circuits with eliminating the wasted text-search operations. Use of the developed nonvolatile TCAM-based search engine makes it possible to significantly reduce power consumption not only in the search mode but also in the standby/sleep mode by a hierarchical power gating, while having high-speed search operation due to the parallel processing capability. As a result, the energy consumption for full-text search can be reduced to about 1/100 compared to the serial search performed on a conventional search-sever system. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Full text search / TCAM / power gating / nonvolatile / MTJ device / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 13, ICD2014-8, pp. 39-44, April 2014. | |
| Paper # | ICD2014-8 | |
| Date of Issue | 2014-04-10 (ICD) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | ICD2014-8 Link to ES Tech. Rep. Archives: ICD2014-8 |
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| Conference Information | |
| Committee | ICD |
| Conference Date | 2014-04-17 - 2014-04-18 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Memory Device Technologies |
| Paper Information | |
| Registration To | ICD |
| Conference Code | 2014-04-ICD |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fabrication of a 99%-Energy-Less Nonvolatile Multi-Functional CAM Chip Using Hierarchical Power Gating for a Massively-Parallel Full-Text-Search Engine |
| Sub Title (in English) | |
| Keyword(1) | Full text search |
| Keyword(2) | TCAM |
| Keyword(3) | power gating |
| Keyword(4) | nonvolatile |
| Keyword(5) | MTJ device |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Shoun Matsunaga |
| 1st Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 2nd Author's Name | Noboru Sakimura |
| 2nd Author's Affiliation | NEC Corporation (NEC) |
| 3rd Author's Name | Ryusuke Nebashi |
| 3rd Author's Affiliation | NEC Corporation (NEC) |
| 4th Author's Name | Tadahiko Sugibayashi |
| 4th Author's Affiliation | NEC Corporation (NEC) |
| 5th Author's Name | Masanori Natsui |
| 5th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 6th Author's Name | Akira Mochizuki |
| 6th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 7th Author's Name | Tetsuo Endoh |
| 7th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 8th Author's Name | Hideo Ohno |
| 8th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 9th Author's Name | Takahiro Hanyu |
| 9th Author's Affiliation | Tohoku University (Tohoku Univ.) |
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| Speaker | 6 |
| Date Time | 2014-04-17 15:15:00 |
| Presentation Time | 25 |
| Registration for | ICD |
| Paper # | IEICE-ICD2014-8 |
| Volume (vol) | IEICE-114 |
| Number (no) | no.13 |
| Page | pp.39-44 |
| #Pages | IEICE-6 |
| Date of Issue | IEICE-ICD-2014-04-10 |
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