1、 ANSI/ESD S11.4-2012 For the Protection of Electrostatic Discharge Susceptible Items Static Control Bags Electrostatic Discharge Association 7900 Turin Road, Bldg. 3 Rome, NY 13440 An American National Standard Approved April 24, 2013ANSI/ESD S11.4-2012 ESD Association Standard for the Protection of
2、 Electrostatic Discharge Susceptible Items - Static Control Bags Approved September 2, 2012 ESD AssociationANSI/ESD S11.4-2012 Electrostatic Discharge Association (ESDA) standards and publications are designed to serve the public interest by eliminating misunderstandings between manufacturers and pu
3、rchasers, facilitating the interchangeability and improvement of products and assisting the purchaser in selecting 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
4、 from manufacturing or selling products not conforming to such standards and publications. Nor shall the fact that a standard or a publication that is published by the Association preclude its voluntary use by non-members of the Association whether the document is to be used either domestically or i
5、nternationally. Recommended standards and publications are adopted by the ESDA in accordance with the ANSI Patent policy. 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 c
6、oncerned 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 per
7、son is authorized to comment on behalf of the ESDA on any ESDA Standard. THE CONTENTS OF ESDAS STANDARDS AND PUBLICATIONS ARE PROVIDED “AS-IS,” AND ESDA MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESSED OR IMPLIED, OF ANY KIND WITH RESPECT TO SUCH CONTENTS. ESDA DISCLAIMS ALL REPRESENTATIONS AND WAR
8、RANTIES, INCLUDING WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR USE, TITLE AND NON-INFRINGEMENT. ESDA STANDARDS AND PUBLICATIONS ARE CONSIDERED TECHNICALLY SOUND AT THE TIME THEY ARE APPROVED FOR PUBLICATION. THEY ARE NOT A SUBSTITUTE FOR A PRODUCT SELLERS O
9、R USERS OWN JUDGEMENT WITH RESPECT TO ANY PARTICULAR PRODUCT DISCUSSED, AND ESDA DOES NOT UNDERTAKE TO GUARANTEE THE PERFORMANCE OF ANY INDIVIDUAL MANUFACTURERS PRODUCTS BY VIRTUE OF SUCH STANDARDS OR PUBLICATIONS. THUS, ESDA EXPRESSLY DISLAIMS ANY RESPONSIBILITY FOR DAMAGES ARISING FROM THE USE, AP
10、PLICATION, OR RELIANCE BY OTHERS ON THE INFORMATION CONTAINED IN THESE STANDARDS OR PUBLICATIONS. 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 I
11、F ADVISED OF THE POSSIBILITY THEREOF. 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. Published by: Electrostatic Discharge Association 79
12、00 Turin Road, Bldg. 3 Rome, NY 13440 Copyright 2013 by ESD Association All rights reserved No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. Printed in the United States of America ISBN:
13、1-58537-238-2DISCLAIMER OF WARRANTIES DISCLAIMER OF GUARANTY LIMITATION ON ESDAs LIABILITY CAUTION NOTICE ANSI/ESD S11.4-2012 i (This foreword is not part of ESD Association Standard ANSI/ESD S11.4-2012) FOREWORD Presently, no industry standard for static control bags exists. While the United States
14、 Department of Defense (DoD) specification MIL-PRF-81705 addresses military static control films, it is intended for use in specialized military methods of preservation, including exposure to high salt concentration, transfer at sea, rough handling, and minimal storage conditions. This military spec
15、ification is for rolls of film only, and does not address bags. Only the few materials that have been tested and placed on the DoD qualified products list are considered compliant to MIL-PRF-81705. This military specification states: “There are no commercial equivalents that meet the physical, mecha
16、nical, and corrosion requirements” Since MIL-PRF-81705 is clearly designated for military applications, and requires film performance specifications that are not necessary for most electronics industry applications, an industry standard is needed. This standard1is intended to establish performance l
17、imits for bags that protect electronics from static and moisture damage during common electronic industry manufacturing and packaging applications. This standard was approved on September 2, 2012 and was designated ANSI/ESD S11.4-2012. At the time ANSI/ESD S11.4-2012 was prepared, the 11.0 Packaging
18、 Subcommittee had the following members: Brent Beamer, Chair 3M Kevin Duncan, TAS Rep Seagate Technology Kurt Edwards Lubrizol Gene Felder Desco Industries, Inc. Dale Parkin Seagate Technology Jeff Salisbury Flextronics Julius Turangan Ovation, Inc. Robert Vermillion RMV Technology Group, LLC Stanle
19、y Weitz Electro-Tech Systems, Inc. Craig Zander Prostat Corporation The following individuals made a significant contribution to the development of ANSI/ESD S11.4-2012: Jose Sancho NASA/Honeywell/TSI David E. Swenson Affinity Static Control Consulting, LLC 1ESD Association Standard (S): A precise st
20、atement of a set of requirements to be satisfied by a material, product, system or process that also specifies the procedures for determining whether each of the requirements is satisfied. ANSI/ESD S11.4-2012 ii TABLE OF CONTENTS 1.0 PURPOSE AND SCOPE . 1 1.1 PURPOSE . 1 1.2 SCOPE . 1 2.0 REFERENCED
21、 PUBLICATIONS 1 3.0 DEFINITIONS 1 4.0 PERSONNEL SAFETY . 2 5.0 STATIC CONTROL BAG LEVELS . 2 6.0 BAG MARKINGS 3 7.0 TECHNICAL REQUIREMENTS 4 8.0 TESTING INSTRUCTIONS . 5 8.1 MOISTURE VAPOR TRANSMISSION RATE (MVTR) . 5 8.2 PUNCTURE RESISTANCE . 5 8.3 SEAL STRENGTH . 5 8.4 THICKNESS . 5 8.5 MARKING AD
22、HESION . 6 8.6 TRANSPARENCY 6 8.7 SILICONE 6 Annexes Annex A (Informative): Bibliography 7 Figures Figure 1: ESD Protective Symbol . 4 Figure 2: Moisture Warning Symbol . 4 Figure 3: Seal Strength Test . 5 Tables Table 1: Technical Requirements . 4 ESD Association Standard ANSI/ESD S11.4-2012 1 ESD
23、Association Standard for the Protection of Electrostatic Discharge Susceptible Items - Static Control Bags 1.0 PURPOSE AND SCOPE 1.1 Purpose This standard establishes performance limits for bags that are intended to protect electronic parts and products from damage due to static electricity and mois
24、ture during common electronic manufacturing industry transport and storage applications. 1.2 Scope This standard applies to bags used to package electronic devices and assemblies. It does not address bags for volatile materials, chemicals, explosives, or munitions. NOTE: Some bag applications may re
25、quire the consideration of additional material or cleanliness controls, including particle level, nonvolatile residue, ionic substances, outgassing, or polycarbonate stress. These parameters are beyond the scope of this standard. 2.0 REFERENCED PUBLICATIONS Unless otherwise specified, the following
26、documents of the latest issue, revision or amendment form a part of this standard to the extent specified herein: ANSI/ESD S8.1, Symbols ESD Awareness2ANSI/ESD STM11.11, Surface Resistance Measurement of Static Dissipative Planar Materials2 ANSI/ESD STM11.31, Bags2ASTM D882, Tensile Properties of Th
27、in Plastic Sheeting3ASTM F1249, Standard Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor3ASTM F 392,Standard Test Method for Flex Durability of Flexible Barrier Materials3ASTM E168, General Techniques of Infrared Quantitative Analysis
28、3EMA Test Procedure, Optical Density4IPC/JEDEC J-STD-033, Handling, Packing, Shipping and Use of Moisture/Reflow Sensitive Surface Mount Devices5IPC-TM-650, Test Methods Manual, Adhesion, Tape Testing6MIL-STD-3010, Testing Procedures for Packaging Materials7 3.0 DEFINITIONS The terms used in the bod
29、y of this document are in accordance with the definitions found in ESD ADV1.0, ESD Associations Glossary of Terms available for complimentary download at www.esda.org. 2ESD Association, 7900 Turin Rd, Bldg. 3, Rome, NY 13440-2069, 315-339-6937 3American Society for Testing and Materials (ASTM), 1916
30、 Race Street, Philadelphia, PA 19103-1187, 215-299-5400 4EMA European Metallizers Association P.O. Box 85612 2508 CH The Hague The Netherlands www.eurometallizers.org 5JEDEC Solid State Technology Association 2500 Wilson Boulevard Arlington, VA 22201 Phone (703) 907-7500 6IPC 3000 Lakeside Drive, 30
31、9 S. Bannockburn, IL 60015 Phone 847-615-7100 7Department of Defense Naval Air Warfare Center Aircraft Division, Highway 547, Code 41K000B120-3, Lakehurst, NJ 08733-5100 ANSI/ESD S11.4-2012 2 4.0 PERSONNEL SAFETY The procedures and equipment described in this document may expose personnel to hazardo
32、us electrical conditions. Users of this document are responsible for selecting equipment that complies with applicable laws, regulatory codes, and both external and internal policy. Users are cautioned that this document cannot replace or supersede any requirements for personnel safety. Ground fault
33、 circuit interrupters (GFCI) and other safety protection should be considered wherever personnel might come into contact with electrical sources. Electrical hazard reduction practices shall be exercised and proper grounding instructions for equipment should be followed. The resistance measurements o
34、btained through the use of this test method shall not be used to determine the relative safety of personnel exposed to high AC or DC voltages. 5.0 STATIC CONTROL BAG LEVELS This standard defines five levels of static control bags: Level 1: Moisture Barrier Bag for Device Packaging This bag provides
35、the following properties intended to protect ESD and moisture susceptible items: Moisture barrier properties intended to protect items that will be subjected to re-flow soldering, preventing excess moisture absorption that can lead to device body cracking. Electrostatic discharge (ESD) and electric
36、field shielding properties intended to protect electronic items from electric fields and ESD. Low charging properties intended to avoid charge accumulation on or in the bag that could be damaging to ESD susceptible items. Surface resistance properties intended to allow charge to dissipate from the i
37、nterior or exterior surface of the bag when the respective surface is grounded. These bags are typically constructed from metal foil and plastic layers, and contain or are coated with an antistat agent. Surface resistance properties may differ between interior and exterior surfaces. Level 2: Moistur
38、e Barrier Bag for General Packaging This bag provides the following properties intended to protect ESD and moisture susceptible items: Moisture barrier properties intended to protect items that will not be subjected to reflow soldering. ESD and electric field shielding properties intended to protect
39、 electronic items from ESD. Low charging properties intended to avoid charge accumulation on or in the bag that could be damaging to ESD susceptible items. Surface resistance properties intended to allow charge to dissipate from the interior or exterior surface of the bag when the respective surface
40、 is grounded. These bags are typically constructed from multiple layers of metalized plastic and contain or are coated with an antistat agent. Surface resistance properties may differ between interior and exterior surfaces. Level 3: Static Shielding Bag This bag provides the following properties int
41、ended to protect ESD susceptible items: ESD and electric field shielding properties intended to protect electronic items from ESD. ANSI/ESD S11.4-2012 3 Low charging properties intended to avoid charge accumulation on or in the bag that could be damaging to ESD susceptible items. Surface resistance
42、properties intended to allow charge to dissipate from the interior or exterior surface of the bag when the respective surface is grounded. Shielding bags are typically constructed from a layer of transparent metalized plastic and plastic layers, and contain or are coated with an antistat agent. Surf
43、ace resistance properties may differ between interior and exterior surfaces. Level 4: Conductive Bag This bag provides the following properties intended to protect ESD susceptible items: Surface and volume resistance properties intended to allow charge to dissipate from the bag to ground. Electric f
44、ield shielding properties. NOTE: Does not provide ESD shielding properties. Conductive bags are typically constructed from extruded plastic containing conductive materials, and exhibit the same resistance properties on both interior and exterior surfaces. Level 5: Static Dissipative Bag This bag pro
45、vides the following properties intended to protect ESD susceptible items: Low charging properties intended to avoid charge accumulation on or in the bag that could be damaging to ESD susceptible items. Surface resistance properties intended to allow charge to dissipate from the interior or exterior
46、surface of the bag when the respective surface is grounded. Dissipative bags are typically constructed from extruded plastic containing or coated with an antistat agent, and exhibit the same surface resistance properties on both interior and exterior surfaces. Caution The user should evaluate the mo
47、isture and ESD susceptibility of the electronic item or assembly and confirm that the bag technical requirements set by this standard are appropriate for the application. 6.0 BAG MARKINGS Level 1, 2, 3, 4, and 5 bags shall be marked with the ESD Protective Symbol as defined by ANSI/ESD S8.1. Level 1
48、 and 2 bags shall be marked with the moisture sensitive identification symbol shown in Figure 2 or as defined by IPC/JEDEC J-STD-033. Level 1, 2, 3, 4, and 5 bags should be marked with the word “Level” and the appropriate level number; for example, a shielding bag would be marked “Level 3”. All bags
49、 should be marked with information that allows traceability to the packaging manufacturer and to the manufacturers date / lot code information. ANSI/ESD S11.4-2012 4 7.0 TECHNICAL REQUIREMENTS The technical requirements shown in Table 1 are the required limits for bags. Table 1. Technical Requirements Properties Technical Requirement Level 1 Level 2 Level 3 Level 4 Level 5 Units Test Method and Instructions Moisture Barrier Bag Moisture Barrier Bag Static Shielding Conductive Bag Static Dissipative Bag Physical Moisture Vapor Transmission Rate (MVTR) 1
