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Paper Abstract and Keywords
Presentation 2008-03-07 13:15
Influence of Test Methods for Indirect Discharge of ESD Gun onto Horizontal Coupling Plane
Norio Yamamoto (IRCS) EMCJ2007-123
Abstract (in Japanese) (See Japanese page) 
(in English) The International Electro-technical Commission (IEC) prescribes the ESD immunity test (IEC610000-4-2) for electronic equipment, which specifies contact and air discharges of an ESD generator onto equipment under test (EUT). As regards the contact discharge testing, an indirect discharge to a horizontal coupling plane (HCP) in the vicinity of the EUT is also specified in order to simulate personnel discharges to objects adjacent to the EUT. The test method, however, was changed as follows. According to IEC 1000-4-2 1995-01(old standard), an ESD generator should be placed vertically at a distance of 0.1m from the EUT, while IEC 61000-4-2 2001-04 (new standard) prescribes that the discharge shall be made horizontally to the edge of the HCP without specifying any reference discharge points. In the enterprises that have done quality control based on the old standard for ESD immunity tests, therefore, it is empirically well known that there are not good correlations between the results by the new and old standard tests even for the same products. In this paper, using a simple printed circuit board (PCB) with a trace in lieu of EUT, we have measured the voltages induced on the trace, when making indirect discharges onto several points at a distance of 0.1m from different reference points on the HCP, and have examined how the difference of the above test methods affect the results. We have found that the new standard test provides greatly different waveforms of induced voltages with smaller peaks compared to those the old standard test does, while the reference discharge points specified in the new standard test less affects the induced voltage waveforms.
Keyword (in Japanese) (See Japanese page) 
(in English) ESD / IEC standard / horizontal coupling plane / indirect discharge / test method / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 533, EMCJ2007-123, pp. 37-42, March 2008.
Paper # EMCJ2007-123 
Date of Issue 2008-02-29 (EMCJ) 
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 EMCJ  
Conference Date 2008-03-07 - 2008-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2008-03-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Influence of Test Methods for Indirect Discharge of ESD Gun onto Horizontal Coupling Plane 
Sub Title (in English)  
Keyword(1) ESD  
Keyword(2) IEC standard  
Keyword(3) horizontal coupling plane  
Keyword(4) indirect discharge  
Keyword(5) test method  
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1st Author's Name Norio Yamamoto  
1st Author's Affiliation Industrial Research Center of Shiga Prefecture (IRCS)
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Speaker Author-1 
Date Time 2008-03-07 13:15:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2007-123 
Volume (vol) vol.107 
Number (no) no.533 
Page pp.37-42 
#Pages 6 
Date of Issue 2008-02-29 (EMCJ) 

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