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| Presentation | 2007-10-26 13:55 Estimation of Injection Current Waveform on IEC Calibration Target from ESD-Gun Takashi Adachi, Yoshinori Taka, Osamu Fujiwara (NIT), Shinobu Ishigami, Yukio Yamanaka (NICT)  EMCJ2007-74 MW2007-121 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The electrostatic discharge (ESD) events due to charged human bodies produce electromagnetic (EM) fields having broad-band frequency spectra, which cause malfunctions in high-tech information equipment. In this context, the International Electrotechnical Commission (IEC) prescribes the ESD immunity test (IEC61000-4-2) of electronic equipment, and specifies the detailed waveform of a discharge current injected onto the IEC recommended calibration target in contact with an ESD generator, which corresponds to the observed voltage waveform at low frequencies. Due to its frequency characteristics, however, in the high frequency range, the observed voltage waveform does not correspond to an injected current one. In the present study, using a commercially available 50 tapered coaxial type adapter and a S-parameter technique, we measured the transfer impedance of a calibration target, and thereby the waveforms of discharge currents injected onto the target were reconstructed from their observed output voltages for contact and air discharges. However, in the calibration of the discharge current injected onto the target, the 50 tapered coaxial type adapter is not used. Therefore we derived transfer impedance of the target without 50 tapered coaxial type adapter. Then we compared measured voltage waveform with reconstructed current waveform injected onto the target. As a results, we found that the transfer impedance is almost 1+j0  at frequencies below 200 MHz, while its absolute values at frequencies over 200 MHz are larger than 1 . This result has shown that the peak of reconstructed discharge currents are smaller than that of the observed voltage waveforms. Furthermore, it has also shown that air discharge with slow approach of an ESD gun with charge voltages of 0.5 kV and fast approach, the reconstructed currents have gently rise time compared with observed voltage waveform. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Electrostatic discharge / Electrostatic discharge generators / Calibration target / Transfer impedance / Injection current / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 278, EMCJ2007-74, pp. 117-122, Oct. 2007. | |
| Paper # | EMCJ2007-74 | |
| Date of Issue | 2007-10-18 (EMCJ, MW) | |
| 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 | EMCJ2007-74 MW2007-121 |
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| Conference Information | |
| Committee | EMCJ MW |
| Conference Date | 2007-10-25 - 2007-10-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EMCJ |
| Conference Code | 2007-10-EMCJ-MW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Estimation of Injection Current Waveform on IEC Calibration Target from ESD-Gun |
| Sub Title (in English) | |
| Keyword(1) | Electrostatic discharge |
| Keyword(2) | Electrostatic discharge generators |
| Keyword(3) | Calibration target |
| Keyword(4) | Transfer impedance |
| Keyword(5) | Injection current |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takashi Adachi |
| 1st Author's Affiliation | Nagoya Institute of Technology (NIT) |
| 2nd Author's Name | Yoshinori Taka |
| 2nd Author's Affiliation | Nagoya Institute of Technology (NIT) |
| 3rd Author's Name | Osamu Fujiwara |
| 3rd Author's Affiliation | Nagoya Institute of Technology (NIT) |
| 4th Author's Name | Shinobu Ishigami |
| 4th Author's Affiliation | National Institte of Information and Communications Technology (NICT) |
| 5th Author's Name | Yukio Yamanaka |
| 5th Author's Affiliation | National Institte of Information and Communications Technology (NICT) |
| Speaker | Author-1 |
| Date Time | 2007-10-26 13:55:00 |
| Presentation Time | 25 minutes |
| Registration for | EMCJ |
| Paper # | EMCJ2007-74, MW2007-121 |
| Volume (vol) | vol.107 |
| Number (no) | no.278(EMCJ), no.279(MW) |
| Page | pp.117-122 |
| #Pages | 6 |
| Date of Issue | 2007-10-18 (EMCJ, MW) |
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