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| Presentation | 2007-08-24 15:15 SPRAM (SPin-transfer torque RAM) with a synthetic ferrimagnetic free layer for suppressing read disturbance and write-current dispersion Katsuya Miura, Takayuki Kawahara, Riichiro Takemura (Hitachi, Ltd.), Jun Hayakawa (Hitachi, Ltd./Tohoku Univ.), Michihiko Yamanouchi (Hitachi, Ltd.), Shoji Ikeda, Ryutaro Sasaki (Tohoku Univ.), Kenchi Ito, Hiromasa Takahashi, Hideyuki Matsuoka (Hitachi, Ltd.), Hideo Ohno (Tohoku Univ.)  SDM2007-166 ICD2007-94 Link to ES Tech. Rep. Archives: SDM2007-166 ICD2007-94 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | SPin-transfer torque RAM (SPRAM) with MgO-barrier-based magnetic tunnel junctions (MTJs) is a promising candidate for a future universal memory due to its non-volatility, high-speed operation and low power consumption. The read disturbance and the write-current dispersion of an MTJ could be suppressed by adopting a free layer with high thermal stability. We found that SPRAM with SyF free layer demonstrates the secure reading and writing and achieves the high-speed reading faster than 1.5 ns. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Universal memory / non-volatile RAM / low power RAM / spin-transfer torque / TMR / Synthetic ferrimagnetic free layer / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 194, SDM2007-166, pp. 135-138, Aug. 2007. | |
| Paper # | SDM2007-166 | |
| Date of Issue | 2007-08-16 (SDM, 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 | SDM2007-166 ICD2007-94 Link to ES Tech. Rep. Archives: SDM2007-166 ICD2007-94 |
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| Conference Information | |
| Committee | ICD SDM |
| Conference Date | 2007-08-23 - 2007-08-24 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kitami Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | VLSI Circuit and Device Technologies (High Speed, Low Voltage, and Low Power Consumption) |
| Paper Information | |
| Registration To | SDM |
| Conference Code | 2007-08-ICD-SDM |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | SPRAM (SPin-transfer torque RAM) with a synthetic ferrimagnetic free layer for suppressing read disturbance and write-current dispersion |
| Sub Title (in English) | |
| Keyword(1) | Universal memory |
| Keyword(2) | non-volatile RAM |
| Keyword(3) | low power RAM |
| Keyword(4) | spin-transfer torque |
| Keyword(5) | TMR |
| Keyword(6) | Synthetic ferrimagnetic free layer |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Katsuya Miura |
| 1st Author's Affiliation | Advanced Research Laboratory, Hitachi, Ltd. (Hitachi, Ltd.) |
| 2nd Author's Name | Takayuki Kawahara |
| 2nd Author's Affiliation | Central Research Laboratory, Hitachi, Ltd. (Hitachi, Ltd.) |
| 3rd Author's Name | Riichiro Takemura |
| 3rd Author's Affiliation | Central Research Laboratory, Hitachi, Ltd. (Hitachi, Ltd.) |
| 4th Author's Name | Jun Hayakawa |
| 4th Author's Affiliation | Advanced Research Laboratory, Hitachi, Ltd. /RIEC, Tohoku University (Hitachi, Ltd./Tohoku Univ.) |
| 5th Author's Name | Michihiko Yamanouchi |
| 5th Author's Affiliation | Advanced Research Laboratory, Hitachi, Ltd. (Hitachi, Ltd.) |
| 6th Author's Name | Shoji Ikeda |
| 6th Author's Affiliation | RIEC, Tohoku University (Tohoku Univ.) |
| 7th Author's Name | Ryutaro Sasaki |
| 7th Author's Affiliation | RIEC, Tohoku University (Tohoku Univ.) |
| 8th Author's Name | Kenchi Ito |
| 8th Author's Affiliation | Advanced Research Laboratory, Hitachi, Ltd. (Hitachi, Ltd.) |
| 9th Author's Name | Hiromasa Takahashi |
| 9th Author's Affiliation | Central Research Laboratory, Hitachi, Ltd., Advanced Research Laboratory, Hitachi, Ltd. (Hitachi, Ltd.) |
| 10th Author's Name | Hideyuki Matsuoka |
| 10th Author's Affiliation | Advanced Research Laboratory, Hitachi, Ltd. (Hitachi, Ltd.) |
| 11th Author's Name | Hideo Ohno |
| 11th Author's Affiliation | RIEC, Tohoku University (Tohoku Univ.) |
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| 18th Author's Affiliation | () |
| Speaker | Author-1 |
| Date Time | 2007-08-24 15:15:00 |
| Presentation Time | 25 minutes |
| Registration for | SDM |
| Paper # | SDM2007-166, ICD2007-94 |
| Volume (vol) | vol.107 |
| Number (no) | no.194(SDM), no.195(ICD) |
| Page | pp.135-138 |
| #Pages | 4 |
| Date of Issue | 2007-08-16 (SDM, ICD) |
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