1、 IEC 61249-2-27 Edition 1.0 2012-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Materials for printed boards and other interconnecting structures Part 2-27: Reinforced base materials clad and unclad Bismaleimide/triazine modified with non-halogenated epoxide woven glass laminate sheets of defined fl
2、ammability (vertical burning test), copper-clad Matriaux pour circuits imprims et autres structures dinterconnexion Partie 2-27: Matriaux de base renforcs, plaqus et non plaqus Feuilles stratifies en tissu de verre de type poxyde non-halogn modifi, et bismalimide-triazine, dinflammabilit dfinie (ess
3、ai de combustion verticale), plaques cuivre IEC61249-2-27:2012 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2012 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, electronic or mechani
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17、ec.ch. IEC 61249-2-27 Edition 1.0 2012-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Materials for printed boards and other interconnecting structures Part 2-27: Reinforced base materials clad and unclad Bismaleimide/triazine modified with non-halogenated epoxide woven glass laminate sheets of defi
18、ned flammability (vertical burning test), copper-clad Matriaux pour circuits imprims et autres structures dinterconnexion Partie 2-27: Matriaux de base renforcs, plaqus et non plaqus Feuilles stratifies en tissu de verre de type poxyde non-halogn modifi, et bismalimide-triazine, dinflammabilit dfini
19、e (essai de combustion verticale), plaques cuivre INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE S ICS 31.180 PRICE CODE CODE PRIX ISBN 978-2-83220-497-9 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrot
20、echnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 61249-2-27 IEC:2012 CONTENTS FOREWORD . 4 1 Scope . 6 2 Normative references 6 3 Materials
21、and construction 6 3.1 General . 6 3.2 Resin system . 6 3.3 Reinforcement . 7 3.4 Metal foil . 7 4 Internal marking 7 5 Electrical properties 7 6 Non-electrical properties of the copper-clad laminate 8 6.1 Appearance of the copper-clad sheet . 8 6.1.1 General . 8 6.1.2 Indentations (pits and dents)
22、8 6.1.3 Wrinkles 8 6.1.4 Scratches 8 6.1.5 Raised areas . 9 6.1.6 Surface waviness . 9 6.2 Appearance of the unclad face . 9 6.3 Laminate thickness 9 6.4 Bow and twist 10 6.5 Properties related to the copper foil bond . 10 6.6 Punching and machining 10 6.7 Dimensional stability 11 6.8 Sheet sizes 11
23、 6.8.1 Typical sheet sizes. 11 6.8.2 Tolerances for sheet sizes . 11 6.9 Cut panels . 11 6.9.1 Cut panel sizes 11 6.9.2 Size tolerances for cut panels 11 6.9.3 Rectangularity of cut panels . 12 7 Non-electrical properties of the base material after complete removal of the copper foil 12 7.1 Appearan
24、ce of the dielectric base material . 12 7.2 Flexural strength 13 7.3 Flammability 13 7.4 Water absorption . 13 7.5 Measling 14 7.6 Glass transition temperature and cure factor 14 8 Quality assurance . 14 8.1 Quality system . 14 8.2 Responsibility for inspection . 15 8.3 Qualification inspection 15 8
25、.4 Quality conformance inspection . 15 8.5 Certificate of conformance . 15 8.6 Safety data sheet . 15 61249-2-27 IEC:2012 3 9 Packaging and marking . 15 10 Ordering information . 16 Annex A (informative) Engineering information . 17 Annex B (informative) Common laminate constructions . 19 Annex C (i
26、nformative) Guideline for qualification and conformance inspection . 20 Bibliography 21 Table 1 Electrical properties . 7 Table 2 Indentations . 8 Table 3 Nominal thickness and tolerance of metal-clad laminate . 9 Table 4 Bow and twist 10 Table 5 Pull-off and peel strength . 10 Table 6 Dimensional s
27、tability 11 Table 7 Size tolerance for cut panels 12 Table 8 Rectangularity of cut panels . 12 Table 9 Flexural strength 13 Table 10 Flammability 13 Table 11 Water absorption . 14 Table 12 Measling 14 Table 13 Glass transition temperature and cure factor 14 Table B.1 Thickness . 19 Table C.1 Qualifi
28、cation and conformance testing 20 4 61249-2-27 IEC:2012 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES Part 2-27 Reinforced base materials clad and unclad Bismaleimide/triazine modified with non-halogenated epoxide woven glass laminate s
29、heets of defined flammability (vertical burning test), copper-clad FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote internatio
30、nal 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 Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter ref
31、erred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate i
32、n this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an interna
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34、le 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 order to promote international uniformity, IEC National Committees undertake to apply IEC Pu
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36、y. 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 certification bodies. 6) All users should ensure that they have the latest edition of this publication.
37、 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, property damage or other damage of any nature whatsoever, whether direct or indirect, or for
38、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 in this publication. Use of the referenced publications is indispensable for the correct app
39、lication 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 any or all such patent rights. International Standard IEC 61249-2-27 has been prepared by IE
40、C technical committee 91: Electronics assembly technology. The text of this standard is based on the following documents: FDIS Report on voting 91/1050/FDIS 91/1063/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table.
41、 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. 61249-2-27 IEC:2012 5 A list of all parts in the IEC 61249 series, published under the general title Materials for printed boards and other interconnecting structures, can be found on the IEC website. The committee
42、 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, the publication will be reconfirmed, withdrawn, replaced by a revised edition,
43、or amended. 6 61249-2-27 IEC:2012 MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES Part 2-27 Reinforced base materials clad and unclad Bismaleimide/triazine modified with non-halogenated epoxide woven glass laminate sheets of defined flammability (vertical burning test), copper-clad
44、 1 Scope This part of IEC 61249 gives requirements for properties of bismaleimide/triazine modified with non-halogenated epoxide woven E-glass reinforced laminated sheets of defined flammability (vertical burning test), copper-clad in thicknesses of 0,03 mm up to 1,60 mm. The flammability rating is
45、achieved through the use of non-halogenated inorganic and/or organic compounds acting as fire retardants. These fire retardants are contained as part of polymeric structure or in addition to it. The glass transition temperature is defined to be 160 C minimum. Some property requirements may have seve
46、ral classes of performance. The class desired should be specified on the purchase order, otherwise the default class of material may be supplied. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application
47、. For dated references, only 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 m
48、ethods for materials and other interconnection structures IEC 61249-5-1:1995, Materials for interconnection structures Part 5: Sectional specification set for conductive foils and films with or without coatings Section 1: Copper foils (for the manufacture of copper-clad base materials) IEC/PAS 61249
49、-6-3:2011, Specification for finished fabric woven from E-glass for printed boards ISO 11014:2009, Safety data sheet for chemical products Content and order of sections 3 Materials and construction 3.1 General The sheet consists of an insulating base with metal-foil bonded to one side or both. 3.2 Resin system Bismaleimide/triazine modified with non-halogenated epoxide result
