| IEICE Technical Committee Submission System Conference Paper's Information |
Online Proceedings [Sign in] Tech. Rep. Archives |
| Go Top Page | Go Previous | [Japanese] / [English] |
| Paper Abstract and Keywords | ||
| Presentation | 2007-02-02 10:10 Non-volatile ternary content addressable memory using CoFe-based magnetic tunnel junction Tetsuya Uemura, Takao Marukame, Kenichi Matsuda, Masafumi Yamamoto (Hokkaido Univ.) Link to ES Tech. Rep. Archives:  ED2006-250 SDM2006-238 |
|
| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | An epitaxial Co$_{50}$Fe$_{50}$/MgO/Co$_{50}$Fe$_{50}$ magnetic tunnel junction (MTJ) was fabricated and a relatively high tunnel magnetoresistance (TMR) ratio of 145\% at room temperature (RT) was obtained. Four remanent magnetization states in the single-crystalline Co$_{50}$Fe$_{50}$ electrode, due to the cubic anisotropy with easy axes of the $\langle 110\rangle$ directions, result in four possible angular-dependent TMRs, each separated by more than 20\% at RT. Analysis of the asteroid curve for Co$_{50}$Fe$_{50}$ indicated that the magnetic field along 22.5$^{\circ}$ from the $\langle 110\rangle$ directions made it possible to change the magnetization direction of the selected cell without disturbing those of the half-selected cells. Furthermore, a ternary content addressable memory (TCAM) using the multi-state MTJ was proposed and its operation was analyzed through circuit simulation. In addition to the non-volatility, the proposed TCAM has an advantage to reducing the device count to 1/3 of that for conventional CMOS-based TCAM. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | magnetic tunnel junction / multiple-valued MRAM / ternary content addressable memory / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 106, no. 520, ED2006-250, pp. 57-62, Feb. 2007. | |
| Paper # | ED2006-250 | |
| Date of Issue | 2007-01-25 (ED, SDM) | |
| ISSN | Print edition: ISSN 0913-5685 | |
| 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 | Link to ES Tech. Rep. Archives: ED2006-250 SDM2006-238 |
|
| Conference Information | |
| Committee | SDM ED |
| Conference Date | 2007-02-01 - 2007-02-02 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | ED |
| Conference Code | 2007-02-ED-SDM |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Non-volatile ternary content addressable memory using CoFe-based magnetic tunnel junction |
| Sub Title (in English) | |
| Keyword(1) | magnetic tunnel junction |
| Keyword(2) | multiple-valued MRAM |
| Keyword(3) | ternary content addressable memory |
| Keyword(4) | |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Tetsuya Uemura |
| 1st Author's Affiliation | Hokkaidoi Univ. (Hokkaido Univ.) |
| 2nd Author's Name | Takao Marukame |
| 2nd Author's Affiliation | Hokkaidoi Univ. (Hokkaido Univ.) |
| 3rd Author's Name | Kenichi Matsuda |
| 3rd Author's Affiliation | Hokkaidoi Univ. (Hokkaido Univ.) |
| 4th Author's Name | Masafumi Yamamoto |
| 4th Author's Affiliation | Hokkaidoi Univ. (Hokkaido Univ.) |
| 5th Author's Name | |
| 5th Author's Affiliation | () |
| 6th Author's Name | |
| 6th Author's Affiliation | () |
| 7th Author's Name | |
| 7th Author's Affiliation | () |
| 8th Author's Name | |
| 8th Author's Affiliation | () |
| 9th Author's Name | |
| 9th Author's Affiliation | () |
| 10th Author's Name | |
| 10th Author's Affiliation | () |
| 11th Author's Name | |
| 11th Author's Affiliation | () |
| 12th Author's Name | |
| 12th Author's Affiliation | () |
| 13th Author's Name | |
| 13th Author's Affiliation | () |
| 14th Author's Name | |
| 14th Author's Affiliation | () |
| 15th Author's Name | |
| 15th Author's Affiliation | () |
| 16th Author's Name | |
| 16th Author's Affiliation | () |
| 17th Author's Name | |
| 17th Author's Affiliation | () |
| 18th Author's Name | |
| 18th Author's Affiliation | () |
| Speaker | Author-1 |
| Date Time | 2007-02-02 10:10:00 |
| Presentation Time | 20 minutes |
| Registration for | ED |
| Paper # | ED2006-250, SDM2006-238 |
| Volume (vol) | vol.106 |
| Number (no) | no.520(ED), no.521(SDM) |
| Page | pp.57-62 |
| #Pages | 6 |
| Date of Issue | 2007-01-25 (ED, SDM) |
[Return to Top Page]