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| Presentation | 2007-04-12 13:00 [Invited Talk] 2-Mb SPRAM (SPin-transfer torque RAM) with Bit-by-bit Bi-Directional Current Write and Parallelizing-Direction Current Read Riichiro Takemura, Takayuki Kawahara, Katsuya Miura (Hitachi), Jun Hayakawa (Hitachi/Tohoku Univ.), Shoji Ikeda, Young Min LEE, Ryutaro Sasaki (Tohoku Univ.), Yasushi Goto, Kenchi Ito (Hitachi), Toshiyasu Meguro, Fumihiro Matsukura (Tohoku Univ.), Hiromasa Takahashi (Hitachi/Tohoku Univ.), Hideyuki Matsuoka (Hitachi), Hideo Ohno (Tohoku Univ.)  ICD2007-6 Link to ES Tech. Rep. Archives: ICD2007-6 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | A 1.8-V 2-Mb SPRAM (SPin-transfer torque RAM) chip using 0.2 µm logic process with MgO tunneling barrier cell demonstrates the circuit technologies for potential low power non-volatile RAM, or universal memory. This chip features: an array scheme with bit-by-bit bi-directional current write to achieve proper spin-transfer torque writing of 100 ns, and parallelizing-direction current reading with low voltage bit-line that leads to 40-ns access time. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | universal memory / nonvolatile RAM / low-power RAM / spin-transfer torque / TMR / Bi-directional current write / Parallelizing direction current read / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 1, ICD2007-6, pp. 29-34, April 2007. | |
| Paper # | ICD2007-6 | |
| Date of Issue | 2007-04-05 (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 | ICD2007-6 Link to ES Tech. Rep. Archives: ICD2007-6 |
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| Conference Information | |
| Committee | ICD |
| Conference Date | 2007-04-12 - 2007-04-13 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | ICD |
| Conference Code | 2007-04-ICD |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | 2-Mb SPRAM (SPin-transfer torque RAM) with Bit-by-bit Bi-Directional Current Write and Parallelizing-Direction Current Read |
| Sub Title (in English) | |
| Keyword(1) | universal memory |
| Keyword(2) | nonvolatile RAM |
| Keyword(3) | low-power RAM |
| Keyword(4) | spin-transfer torque |
| Keyword(5) | TMR |
| Keyword(6) | Bi-directional current write |
| Keyword(7) | Parallelizing direction current read |
| Keyword(8) | |
| 1st Author's Name | Riichiro Takemura |
| 1st Author's Affiliation | Hitachi Ltd. (Hitachi) |
| 2nd Author's Name | Takayuki Kawahara |
| 2nd Author's Affiliation | Hitachi Ltd. (Hitachi) |
| 3rd Author's Name | Katsuya Miura |
| 3rd Author's Affiliation | Hitachi Ltd. (Hitachi) |
| 4th Author's Name | Jun Hayakawa |
| 4th Author's Affiliation | Hitachi Ltd./Tohoku University (Hitachi/Tohoku Univ.) |
| 5th Author's Name | Shoji Ikeda |
| 5th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 6th Author's Name | Young Min LEE |
| 6th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 7th Author's Name | Ryutaro Sasaki |
| 7th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 8th Author's Name | Yasushi Goto |
| 8th Author's Affiliation | Hitachi Ltd. (Hitachi) |
| 9th Author's Name | Kenchi Ito |
| 9th Author's Affiliation | Hitachi Ltd. (Hitachi) |
| 10th Author's Name | Toshiyasu Meguro |
| 10th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 11th Author's Name | Fumihiro Matsukura |
| 11th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 12th Author's Name | Hiromasa Takahashi |
| 12th Author's Affiliation | Hitachi Ltd./Tohoku University (Hitachi/Tohoku Univ.) |
| 13th Author's Name | Hideyuki Matsuoka |
| 13th Author's Affiliation | Hitachi Ltd. (Hitachi) |
| 14th Author's Name | Hideo Ohno |
| 14th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 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 | 2007-04-12 13:00:00 |
| Presentation Time | 50 minutes |
| Registration for | ICD |
| Paper # | ICD2007-6 |
| Volume (vol) | vol.107 |
| Number (no) | no.1 |
| Page | pp.29-34 |
| #Pages | 6 |
| Date of Issue | 2007-04-05 (ICD) |
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