ANSI/ESD S541-2008
跳绳记录
Reaffirmation of ANSI/ESD S541-2003 For the Protection of Electrostatic
Discharge Susceptible Items Packaging Materials for
ESD Sensitive Items
吹号手的诺言
Electrostatic Discharge Association
7900 Turin Road, Bldg. 3
赵志康
Rome, NY 13440-2069
An American National Standard
Approved September 29, 2008爱丽丝漫游奇境记读后感
鲁迅父亲的病>和春天有关的古诗
ANSI/ESD S541-2008
ESD Association Standard for the Protection of Electrostatic Discharge Susceptible Items – Packaging Materials for ESD Sensitive Items
ESD Association
Approved June 8, 2008
ANSI/ESD S541-2008
Electrostatic Discharge Association (ESDA) standards and publications are designed to rve the public interest by eliminating misunderstandings between manufacturers and purchars, facilitating the interchangeability and improvement of products and assisting the purchar in lecting and obtaining the proper product for his particular needs. The existence of such standards and publications shall not in any respect preclude any member or non-member of the Association from manufacturing or lling products not conforming to such standards and publications. Nor shall the fact that a standard or publication is published by the Association preclude its voluntary u by non-members of the Association whether the document is to be ud either domestically or internationally. Recommended standards and publications are adopted by the ESDA in accordance with the ANSI Patent policy. CAUTION NOTICE
Interpretation of ESDA Standards: The interpretation of standards in-so-far as it may relate to a specific product or manufacturer is a proper matter for the individual company concerned and cannot be undertaken by any person acting for the ESDA. The ESDA Standards Chairman may make comments limited to an explanation or clarification of the technical language or provisions in a standard, but not related to its application to specific products and manufacturers. No other person is authorized to comment on behalf of the ESDA on any ESDA Standard.
THE CONTENTS OF ESDA’S STANDARDS AND PUBLICATIONS ARE PROVIDED “AS-IS,” AND ESDA MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, OF ANY KIND WITH RESPECT TO SUCH CONTENTS. ESDA DISCLAIMS ALL REPRESENTATIONS AND WARRANTIES, INCLUDING WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE OR USE, TITLE AND NON-INFRINGEMENT. DISCLAIMER OF WARRANTIES
ESDA STANDARDS AND PUBLICATIONS ARE CONSIDERED TECHNICALLY SOUND AT THE TIME THEY ARE APPROVED FOR PUBLICATION. THEY ARE NOT A SUBSTITUTE FOR A PRODUCT SELLER’S OR USER’S OWN JUDGEMENT WITH RESPECT TO ANY PARTICULAR PRODUCT DISCUSSED, AND ESDA DOES NOT UNDERTAKE TO GUARANTY THE PERFORMA
红娘鱼怎么做好吃
NCE OF ANY INDIVIDUAL MANUFACTURERS’ PRODUCTS BY VIRTUE OF SUCH STANDARDS OR PUBLICATIONS. THUS, ESDA EXPRESSLY DISLAIMS ANY RESPONSIBILITY FOR DAMAGES ARISING FROM THE USE, APPLICATION, OR RELIANCE BY OTHERS ON THE INFORMATION CONTAINED IN THESE STANDARDS OR PUBLICATIONS. DISCLAIMER OF GUARANTY
NEITHER ESDA, NOR ITS MEMBERS, OFFICERS, EMPLOYEES OR OTHER REPRESENTATIVES WILL BE LIABLE FOR DAMAGES ARISING OUT OF OR IN CONNECTION WITH THE USE OR MISUSE OF ESDA STANDARDS OR PUBLICATIONS, EVEN IF ADVISED OF THE POSSIBILITY THEROF. THIS IS A COMPREHENSIVE LIMITATION OF LIABILITY THAT APPLIES TO ALL DAMAGES OF ANY KIND, INCLUDING WITHOUT LIMITATION, LOSS OF DATA, INCOME OR PROFIT, LOSS OF OR DAMAGE TO PROPERTY AND CLAIMS OF THIRD PARTIES.
LIMITATION ON ESDA’s LIABILITY
Published by:
Electrostatic Discharge Association 7900 Turin Road, Bldg. 3 Rome, NY 13440
Copyright © 2008 by ESD Association All rights rerved
女性知识No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwi, without the prior written permission of the publisher.
Printed in the United States of America
ISBN: 1-58537-149-1
ANSI/ESD S541-2008
FOREWORD
Packaging is necessary to protect electronic items from physical and environmental damage during manufacture, transportation, and storage. While most types of packaging (not for static nsitive items) provide physical and environmental protection, it also may harm static nsitive electronic items by allowing the accumulation or the discharge of static electricity. (See Annex B for device damage information.)
Packaging for ESD nsitive items is commonly derived by modifying existing packaging to prevent the packaging itlf from causing static damage. The packaging generally retains its physical and environmental protective qualities. ESD protective packaging has been modified further to prevent ot
her sources of static electricity from damaging a packaged item.
This can be illustrated by considering bags. Polyethylene bags are uful packages for containing items and providing protection from physical and environmental damage. However, polyethylene bags accumulate potentially damaging amounts of static electricity. Chemicals (antistats) are added to the polyethylene bag to render it low charging. The result is a low charging (antistatic) polyethylene bag that is less likely to damage static nsitive items. By adding a conductive layer to the low charging polyethylene bag, an ESD shielding bag is created. This shielding bag is low charging, and shields packaged items from ESD and the electric field generated by other items.
Other standard packaging including paper corrugate and plastic boxes, trays, and clamshells have, or are prently, following similar paths.
A complete ESD control program, as defined by ANSI/ESD S20.20, requires the u of ESD protective packaging to properly manufacture, transport, and store ESD nsitive devices. This Standard provides requirements for ESD protective packaging that must be included inside and outside an Electrostatic Protected Area (EPA).
Becau most physical and environmental considerations can be left to traditional packaging design
and testing methodologies, only the material properties that provide reduction or prevention of damage from static electricity need be addresd.
This standard describes the packaging material properties needed to protect electrostatic discharge (ESD) nsitive electronic items, and references the testing methods for evaluating packaging and packaging materials for tho properties. Where possible, performance limits are provided. Guidance for lecting the types of packaging with protective properties appropriate for specific applications is provided. Other considerations for protective packaging are also provided. This document is a substantial refinement of the discontinued Electronic Industries Association Standard EIA-541-1988. Updates include the adoption of surface resistance (ohms) in place of surface resistivity (ohms/square), volume resistance (ohms) in place of volume resistivity (ohm-cm), a shielding test that allows penetrating energy (nanoJoules) to be calculated in place of a voltage measurement (volts), and limits the u of static decay testing. Resistance is no longer the only property that is ud to classify ESD packaging. Low Charging, Electric Field Shielding and Direct Discharge Shielding have been added.
