1、 IEC 61249-2-35Edition 1.0 2008-11INTERNATIONAL STANDARD NORME INTERNATIONALEMaterials for printed boards and other interconnecting structures Part 2-35: Reinforced base materials, clad and unclad Modified epoxide woven E-glass laminate sheets of defined flammability (vertical burning test), copper-
2、clad for lead-free assembly Matriaux pour circuits imprims et autres structures dinterconnexion Partie 2-35: Matriaux de base renforcs, plaqus et non plaqus Feuilles stratifies en tissu de verre de type E poxyde modifi, plaques cuivre, dinflammabilit dfinie (essai de combustion verticale) pour les a
3、ssemblages sans plomb IEC61249-2-35:2008 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2008 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 mechanical, including photoco
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17、stions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.chTl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61249-2-35Edition 1.0 2008-11INTERNATIONAL STANDARD NORME INTERNATIONALEMaterials for printed boards and other interconnecting structures Part 2-35: Reinforced base materials,
18、 clad and unclad Modified epoxide woven E-glass laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assembly Matriaux pour circuits imprims et autres structures dinterconnexion Partie 2-35: Matriaux de base renforcs, plaqus et non plaqus Feuilles stratifies en
19、tissu de verre de type E poxyde modifi, plaques cuivre, dinflammabilit dfinie (essai de combustion verticale) pour les assemblages sans plomb INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE TICS 31.180 PRICE CODECODE PRIXISBN 2-8318-1018-2 Registered trademark of
20、 the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 61249-2-35 IEC:2008 CONTENTS FOREWORD.4 1 Scope.6 2 Normative references6 3 Materials and construction 6 3.1 Resin system.6 3.2 Metal foil .7 3.3 Reinforcement .7 4 Internal marking7 5 Elec
21、trical 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 6.1.5 Surface waviness.9 6.2 Appearance of the unclad face.9 6.3 Laminate thickness9 6
22、.4 Bow and twist 9 6.5 Properties related to the copper foil bond.10 6.6 Punching and machining11 6.7 Dimensional stability11 6.8 Sheet sizes11 6.8.1 Typical sheet sizes 11 6.8.2 Tolerances for sheet sizes .12 6.9 Cut panels.12 6.9.1 Cut panel sizes 12 6.9.2 Size tolerances for cut panels 12 6.9.3 R
23、ectangularity 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 Flammability13 7.4 Water absorption .14 7.5 Measling14 7.6 Glass transition temperature and cure
24、factor15 7.7 Decomposition temperature .15 7.8 Thermal resistance 15 7.9 Z-axis expansion .15 8 Quality assurance .16 8.1 Quality system .16 8.2 Responsibility for inspection.16 8.3 Qualification inspection16 8.4 Quality conformance inspection .16 8.5 Certificate of conformance.16 61249-2-35 IEC:200
25、8 3 8.6 Safety data sheet.17 9 Packaging and marking.17 10 Ordering information .17 Annex A (informative) Engineering information .18 Annex B (informative) Common laminate constructions.20 Annex C (informative) Guideline for qualification and conformance inspection.22 Bibliography23 Table 1 Electric
26、al properties .7 Table 2 Nominal thickness and tolerance of metal-clad laminate.9 Table 3 Bow and twist 10 Table 4 Pull-off and peel strength .10 Table 5 Dimensional stability11 Table 6 Size tolerances for cut panels 12 Table 7 Rectangularity of cut panels.12 Table 8 Flexural strength13 Table 9 Flam
27、mability 14 Table 10 Water absorption .14 Table 11 Measling15 Table 12 Glass transition temperature and cure factor 15 Table 13 Decomposition temperature .15 Table 14 Thermal resistance 15 Table 15 Z-axis expansion16 4 61249-2-35 IEC:2008 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MATERIALS FOR PRI
28、NTED BOARDS AND OTHER INTERCONNECTING STRUCTURES Part 2-35: Reinforced base materials, clad and unclad Modified epoxide woven E-glass laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assembly FOREWORD 1) The International Electrotechnical Commission (IEC) is
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38、ferenced 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 any or all such patent rights. Int
39、ernational Standard IEC 61249-2-35 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 91/810/FDIS 91/832/RVD Full information on the voting for the approval of this standard can be fou
40、nd in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. 61249-2-35 IEC:2008 5 A list of all parts of the IEC 61249 series, under the general title Materials for printed boards and other interconnecting structures,
41、can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the maintenance result 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
42、reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 61249-2-35 IEC:2008 MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES Part 2-35: Reinforced base materials, clad and unclad Modified epoxide woven E-glass laminate sheets of defined flammability (vertical burning te
43、st), copper-clad for lead-free assembly 1 Scope This part of IEC 61249 gives requirements for properties of modified brominated epoxide woven E-glass laminate sheet 0,05 mm up to 3,2 mm, of defined flammability (vertical burning test), copper-clad. The glass transition temperature is defined to be 1
44、50 C to 200 C. Its flame resistance is defined in terms of the flammability requirements of 7.3. Some property requirements 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 ref
45、erences The following referenced documents are indispensable for the application of this document. 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 electr
46、ical materials, printed boards and other interconnection structures and assemblies Part 2: Test method for interconnection structures IEC 61249-5-1:1995, Materials for interconnection structures Part 5: Sectional specification set for conductive foils and films with and without coatings Section 1: C
47、opper foils (for the manufacture of copper-clad base materials) ISO 9000, Quality management systems Fundamentals and vocabulary ISO 11014-1, Safety data sheet for chemical products Part 1: Content and order of sections ISO 14001, Environmental management systems Requirements with guidance for use 3
48、 Materials and construction The sheet consists of an insulating base with metal-foil bonded to one side or both. 3.1 Resin system Majority di-functional epoxide, modified epoxide, woven E-glass laminate with a glass transition temperature of 150 C to 200 C. The flammability rating is achieved throug
49、h the use of bromine reacted into the polymer. Inorganic fillers may be used. Contrast agents may be added to enhance processing such as automated optical inspection (AOI). Its flame resistance is defined in terms of the flammability requirements of 7.3. 61249-2-35 IEC:2008 7 3.2 Metal foil Copper as specified in IEC 61249-5-1, copper foil (for the m
