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Paper Abstract and Keywords
Presentation 2012-12-01 13:00
[Invited Talk] The Contact Resistance Performance of Gold Coated Carbon-Nanotube Surfaces under Low Current Switching.
John W.McBride, Chamaporn Chianrabutra, Liudi Jiang, Suan Hui Pu (Univ. of Southampton) EMD2012-83
Abstract (in Japanese) (See Japanese page) 
(in English) Multi-Walled CNT (MWCNT) are synthesized on a silicon wafer and sputter coated with a gold film. The planar surfaces are mounted on the tip of a piezo-electric actuator and mated with a gold coated hemispherical surface to form an electrical contact. These switching contacts are tested under conditions typical of MEMS relay applications; 4 V, with a static contact force of 1 mN, at a low current between 20 50 mA. The evolution of contact resistance is considered in a newly developed test procedure. The contact resistance performance is then linked to a study of the contact changes in the surface. The contact surfaces have been shown to exhibit a transfer process over a large number of switching cycles. The continuous monitoring of contact resistance can be used for the identification of surface failure. The results show that for the surfaces presented the contact resistance remains stable for between 80 and 120 million switching cycles. Interestingly the number of bounces is related to the fine transfer failure mechanism.
Keyword (in Japanese) (See Japanese page) 
(in English) Carbon nanotubes / contact surface / MEMS switching surface / fine transfer mechanism / contact resistance / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 332, EMD2012-83, pp. 105-112, Nov. 2012.
Paper # EMD2012-83 
Date of Issue 2012-11-23 (EMD) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee EMD  
Conference Date 2012-11-30 - 2012-12-01 
Place (in Japanese) (See Japanese page) 
Place (in English) Chiba Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) International Session IS-EMD2012 
Paper Information
Registration To EMD 
Conference Code 2012-11-EMD 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) The Contact Resistance Performance of Gold Coated Carbon-Nanotube Surfaces under Low Current Switching. 
Sub Title (in English)  
Keyword(1) Carbon nanotubes  
Keyword(2) contact surface  
Keyword(3) MEMS switching surface  
Keyword(4) fine transfer mechanism  
Keyword(5) contact resistance  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name John W.McBride  
1st Author's Affiliation University of Southampton (Univ. of Southampton)
2nd Author's Name Chamaporn Chianrabutra  
2nd Author's Affiliation University of Southampton (Univ. of Southampton)
3rd Author's Name Liudi Jiang  
3rd Author's Affiliation University of Southampton (Univ. of Southampton)
4th Author's Name Suan Hui Pu  
4th Author's Affiliation University of Southampton (Univ. of Southampton)
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Speaker Author-1 
Date Time 2012-12-01 13:00:00 
Presentation Time 35 minutes 
Registration for EMD 
Paper # EMD2012-83 
Volume (vol) vol.112 
Number (no) no.332 
Page pp.105-112 
#Pages 8 
Date of Issue 2012-11-23 (EMD) 

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