1、 IEC 61249-2-44 Edition 1.0 2016-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Materials for printed boards and other interconnecting structures Part 2-44: Reinforced base materials clad and unclad Non-halogenated epoxide non-woven/woven E-glass reinforced laminate sheets of defined flammability (v
2、ertical burning test), copper-clad for lead-free assembly Matriaux pour circuits imprims et autres structures dinterconnexion Partie 2-44: Matriaux de base renforcs, plaqus et non plaqus Feuilles stratifies renforces en verre de type E tiss/non-tiss poxyde non halogn, plaques cuivre, dinflammabilit
3、dfinie (essai de combustion verticale) pour les assemblages sans plomb IEC 61249-2-44:2016-05(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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20、 77, 86 et CISPR de lIEC. Service Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 61249-2-44 Edition 1.0 2016-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Materials for printed boards and o
21、ther interconnecting structures Part 2-44: Reinforced base materials clad and unclad Non-halogenated 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 dint
22、erconnexion Partie 2-44: Matriaux de base renforcs, plaqus et non plaqus Feuilles stratifies renforces en verre de type E tiss/non-tiss poxyde non halogn, plaques cuivre, dinflammabilit dfinie (essai de combustion verticale) pour les assemblages sans plomb INTERNATIONAL ELECTROTECHNICAL COMMISSION C
23、OMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 31.180 ISBN 978-2-8322-3394-8 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attent
24、ion! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 61249-2-44:2016 IEC 2016 CONTENTS FOREWORD 4 1 Scope .6 2 Normative references 6 3 Materials and construction .6 3.1 General 6 3.2 Resin system 6 3.3 Metal foil .7 3.4 Reinforcement 7 4 Internal marking
25、7 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 General .7 6.1.2 Indentations (pits and dents) 8 6.1.3 Wrinkles 8 6.1.4 Scratches 8 6.1.5 Raised areas .8 6.1.6 Surface waviness .9 6.2 Appearance of the unclad fac
26、e 9 6.3 Laminate thickness .9 6.4 Bow and twist .9 6.5 Properties related to the copper foil bond 10 6.6 Punching and machining . 11 6.7 Dimensional stability . 11 6.8 Sheet sizes . 11 6.8.1 Typical sheet sizes 11 6.8.2 Tolerances for sheet sizes . 11 6.9 Cut panels 12 6.9.1 Cut panel sizes 12 6.9.2
27、 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 foil . 12 7.1 Appearance of the dielectric base material 12 7.2 Flexural strength . 13 7.3 Flammability . 13 7.4 Water absorption 14 7.5 Me
28、asling . 14 7.6 Glass transition temperature and cure factor . 14 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 inspection . 15 8.4 Quality conformance inspection . 15 IEC 61249
29、-2-44:2016 IEC 2016 3 8.5 Certificate of conformance 15 8.6 Safety data sheet 16 9 Packaging and marking . 16 10 Ordering information 16 Annex A (informative) Engineering information . 17 A.1 General 17 A.2 Chemical properties 17 A.3 Electrical properties 17 A.4 Flammability properties . 17 A.5 Mech
30、anical properties . 17 A.6 Physical properties . 17 A.7 Thermal properties 18 Annex B (informative) Common laminate constructions 19 Annex C (informative) Guideline for qualification and conformance inspection 20 Bibliography . 21 Table 1 Electrical properties 7 Table 2 Size of indentations .8 Table
31、 3 Nominal thickness and tolerance of metal-clad laminate.9 Table 4 Bow and twist requirements . 10 Table 5 Pull-off and peel strength requirements . 10 Table 6 Dimensional stability . 11 Table 7 Size tolerances for cut panels 12 Table 8 Rectangularity of cut panels 12 Table 9 Flexural strength requ
32、irements 13 Table 10 Flammability requirements . 13 Table 11 Water absorption requirements 14 Table 12 Measling requirements 14 Table 13 Glass transition temperature and cure factor requirements . 14 Table 14 Decomposition temperature requirements 14 Table 15 Time to delamination requirements 15 Tab
33、le C.1 Qualification and conformance inspection . 20 4 IEC 61249-2-44:2016 IEC 2016 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES Part 2-44: Reinforced base materials clad and unclad Non-halogenated epoxide non-woven/woven E-glass reinf
34、orced 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 electrotechnical committees (IEC National Committees). The
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45、d IEC 61249-2-44 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 91/1351/FDIS 91/1364/RVD Full information on the voting for the approval of this standard can be found in the report
46、 on voting indicated in the above table. IEC 61249-2-44:2016 IEC 2016 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 other interconnecting structures, can be
47、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, the publication will be reconfirmed, wit
48、hdrawn, replaced by a revised edition, or amended. 6 IEC 61249-2-44:2016 IEC 2016 MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES Part 2-44: Reinforced base materials clad and unclad Non-halogenated epoxide non-woven/woven E-glass reinforced laminate sheets of defined flammability
49、(vertical burning test), copper-clad for lead-free assembly 1 Scope This part of IEC 61249 gives requirements for properties of non-halogenated epoxide non- woven reinforced core/woven E-glass reinforced surface laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assembly in thicknesses of 0,60 mm up to 1,70 mm. The flammabilit
