Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
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 2007-04-12 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
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

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 ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th 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) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan