1、 IEC 61249-2-42 Edition 1.0 2010-04 INTERNATIONAL STANDARD NORME INTERNATIONALE Materials for printed boards and other interconnecting structures Part 2-42: Reinforced base materials clad and unclad Brominated epoxide non-woven/woven E-glass reinforced laminate sheets of defined flammability (vertic
2、al burning test), copper-clad for lead-free assembly Matriaux pour circuits imprims et autres structures dinterconnexion Partie 2-42: Matriaux de base renforcs plaqus et non plaqus Feuilles stratifies renforces en verre de type E poxyde brom tiss/non tiss, dinflammabilit dfinie (essai de combustion
3、verticale), plaques cuivre pour les assemblages sans plomb IEC 61249-2-42:2010 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, elect
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17、cette publication ou si vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61249-2-42 Edition 1.0 2010-04 INTERNATIONAL STANDARD NORME INTERNATIONALE Materials for printed boards and other interconnecting str
18、uctures Part 2-42: Reinforced base materials clad and unclad Brominated epoxide non-woven/woven E-glass reinforced laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assembly Matriaux pour circuits imprims et autres structures dinterconnexion Partie 2-42: Matr
19、iaux de base renforcs plaqus et non plaqus Feuilles stratifies renforces en verre de type E poxyde brom tiss/non tiss, dinflammabilit dfinie (essai de combustion verticale), plaques cuivre pour les assemblages sans plomb INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATI
20、ONALE S ICS 31.180 PRICE CODE CODE PRIX ISBN 978-2-88910-462-8 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 61249-2-42 IEC:2010 CONTENTS FOREWORD.4 1 Scope.6 2 Normative references6 3 Materials and construction
21、6 3.1 Resin system.6 3.2 Metal foil .7 3.3 Reinforcement.7 4 Internal marking7 5 Electrical properties 7 6 Non-electrical properties of the copper-clad laminate 7 6.1 Appearance of the copper-clad sheet.7 6.1.1 Indentations (pits and dents)8 6.1.2 Wrinkles 8 6.1.3 Scratches 8 6.1.4 Raised areas .8 6
22、.1.5 Surface waviness.9 6.2 Appearance of the unclad face.9 6.3 Laminate thickness9 6.4 Bow and twist 9 6.5 Properties related to the copper foil bond.10 6.6 Punching and machining10 6.7 Dimensional stability11 6.8 Sheet sizes11 6.8.1 Typical sheet sizes 11 6.8.2 Tolerances for sheet sizes .11 6.9 C
23、ut panels.11 6.9.1 Cut panel sizes 11 6.9.2 Size tolerances for cut panels 12 6.9.3 Rectangularity of cut panels .12 7 Non-electrical properties of the base material after complete removal of the copper foil12 7.1 Appearance of the dielectric base material.12 7.2 Flexural strength13 7.3 Flammability
24、13 7.4 Water absorption.14 7.5 Measling14 7.6 Glass transition temperature and cure factor14 7.7 Decomposition temperature .14 7.8 Time to delamination (TMA).15 8 Quality assurance.15 8.1 Quality system.15 8.2 Responsibility for inspection.15 8.3 Qualification inspection15 8.4 Quality conformance in
25、spection .15 8.5 Certificate of conformance.16 8.6 Safety data sheet.16 61249-2-42 IEC:2010 3 9 Packaging and marking.16 10 Ordering information.16 Annex A (informative) Engineering information .17 Annex B (informative) Common laminate constructions.19 Annex C (informative) Guideline for qualificati
26、on and conformance inspection.20 Bibliography21 Table 1 Electrical properties .7 Table 2 Nominal thickness and tolerance of metal-clad laminate.9 Table 3 Bow and twist requirements .9 Table 4 Pull-off and peel strength requirements10 Table 5 Dimensional stability11 Table 6 Size tolerances for cut pa
27、nels 12 Table 7 Rectangularity of cut panels.12 Table 8 Flexural strength requirements.13 Table 9 Flammability requirements .13 Table 10 Water absorption requirements 14 Table 11 Measling requirements.14 Table 12 Glass transition temperature and cure factor requirements .14 Table 13 Decomposition te
28、mperature requirements 14 Table 14 Time to delamination (TMA) .15 Table C.1 Qualification and conformance inspection.20 4 61249-2-42 IEC:2010 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES Part 2-42: Reinforced base materials clad and un
29、clad Brominated epoxide non-woven/woven E-glass reinforced laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assembly FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national elect
30、rotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specific
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34、ternational use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In
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36、 clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certificat
37、ion bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury,
38、property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited
39、 in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying
40、 any or all such patent rights. International Standard IEC 61249-2-42 has been prepared by IEC technical committee 91: Electronics assembly technology. The text of this standard is based on the following documents: FDIS Report on voting 91/912/FDIS 91/923/RVD Full information on the voting for the a
41、pproval of this standard can be found in the report on voting indicated in the above table. 61249-2-42 IEC:2010 5 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of the IEC 61249 series, under the general title Materials for printed boards and
42、 other interconnecting structures, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date
43、, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 61249-2-42 IEC:2010 MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES Part 2-42: Reinforced base materials clad and unclad Brominated epoxide non-woven/woven E-glass reinforced laminate she
44、ets of defined flammability (vertical burning test), copper-clad for lead-free assembly 1 Scope This part of IEC 61249 gives requirements for properties of brominated epoxide non-woven reinforced core/woven E-glass reinforced surface laminate sheets of defined flammability (vertical burning test), c
45、opper-clad for lead-free assembly in thicknesses of 0,60 mm up to 1,70 mm. The flammability rating is achieved through the use of brominated fire retardants reacted as part of the epoxide polymeric structure. The glass transition temperature is defined to be 105 C minimum. Some property requirements
46、 may have several classes of performance. The class desired should be specified on the purchase order, otherwise the default class of material will be supplied. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, onl
47、y the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 61189-2:2006, Test methods for electrical materials, printed boards and other interconnection structures and assemblies Part 2: Test methods for materials for in
48、terconnection structures IEC 61249-5-1, Materials for interconnection structures Part 5: Sectional specification set for conductive foils and films with and without coatings Section 1: Copper foils (for the manufacture of copper-clad base materials) ISO 9000, Quality management systems Fundamentals
49、and vocabulary ISO 11014, Safety data sheet for chemical products Content and order of sections ISO 14001, Environmental management systems Requirements with guidance for use 3 Materials and construction The sheet consists of an insulating base with metal-foil bonded to one side or both. 3.1 Resin system Brominated epoxide, filled or unfilled, resul
