1、Materials for printed boards and other interconnecting structuresPart 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 assemblyBS EN 61249-2-44:2016BSI
2、 Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of EN 61249-2-44:2016. It isidentical to IEC 61249-2-44:2016.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/501, Electronic A
3、ssembly Technology.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2016.Publis
4、hed by BSI Standards Limited 2016ISBN 978 0 580 83183 6ICS 31.180Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2016.Amendments/corrigenda issued since pu
5、blicationDate Text affectedBRITISH STANDARDBS EN 61249-2-44:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61249-2-44 July 2016 ICS 31.180 English Version Materials for printed boards and other interconnecting structures - Part 2-44: Reinforced base materials clad and unclad - Non-halogena
6、ted epoxide non-woven/woven E-glass reinforced laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assembly (IEC 61249-2-44:2016) Matriaux pour circuits imprims et autres structures dinterconnexion - Partie 2-44: Matriaux de base renforcs, plaqus et non plaqus
7、- 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 (IEC 61249-2-44:2016) Materialien fr Leiterplatten und andere Verbindungsstrukturen - Teil 2-44: Kaschierte und un
8、kaschierte verstrkte Basismaterialien - Kupferkaschierte mit E-Glaswirrfaser im Kernbereich und E-Glasgewebe in den Auenlagen verstrkte Laminattafeln auf der Basis von halogenfreiem Epoxidharz definierter Brennbarkeit (vertikale Prflingslage) fr bleifreie Bestckungstechnik (IEC 61249-2-44:2016) This
9、 European Standard was approved by CENELEC on 2016-06-16. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical refe
10、rences concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of
11、a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yu
12、goslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical St
13、andardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 612
14、49-2-44:2016 E BS EN 61249-2-44:2016EN 61249-2-44:2016 2 European foreword The text of document 91/1351/FDIS, future edition 1 of IEC 61249-2-44, prepared by IEC/TC 91 “Electronics assembly technology“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61249-2-44:2016. The
15、following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2017-03-16 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2019-06-16 Att
16、ention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61249-2-44:2016 was approve
17、d by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: ISO 9000 NOTE Harmonized as EN ISO 9000. ISO 14001 NOTE Harmonized as EN ISO 14001. BS EN 61249-2-44:2016EN 61249-2-44:2016 3 Ann
18、ex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applie
19、s. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the
20、 European Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 61189-2 2006 Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 2: Test methods for materials for interconnection structures
21、 EN 61189-2 2006 IEC 61249-5-1 - 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) EN 61249-5-1 - IEC/PAS 61249-6-3 - Specification for f
22、inished fabric woven from “E“ glass for printed boards - - ISO 11014 - Safety data sheet for chemical products - Content and order of sections - - BS EN 61249-2-44:2016 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
23、6 3.2 Resin system 6 3.3 Metal foil .7 3.4 Reinforcement 7 4 Internal marking 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.
24、1.5 Raised areas .8 6.1.6 Surface waviness .9 6.2 Appearance of the unclad face 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 To
25、lerances for sheet sizes . 11 6.9 Cut panels 12 6.9.1 Cut panel sizes 12 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 foil . 12 7.1 Appearance of the dielectric base material 12 7
26、.2 Flexural strength . 13 7.3 Flammability . 13 7.4 Water absorption 14 7.5 Measling . 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 Q
27、ualification inspection . 15 8.4 Quality conformance inspection . 15 BS EN 61249-2-44:2016IEC 61249-2-44:2016 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 1
28、7 A.2 Chemical properties 17 A.3 Electrical properties 17 A.4 Flammability properties . 17 A.5 Mechanical 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 in
29、spection 20 Bibliography . 21 Table 1 Electrical properties 7 Table 2 Size of indentations .8 Table 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
30、tolerances for cut panels 12 Table 8 Rectangularity of cut panels 12 Table 9 Flexural strength requirements 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 T
31、able 14 Decomposition temperature requirements 14 Table 15 Time to delamination requirements 15 Table C.1 Qualification and conformance inspection . 20 BS EN 61249-2-44:2016 4 IEC 61249-2-44:2016 IEC 2016 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECT
32、ING 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 FOREWORD 1) The International Electrotechnical Commission (IEC) is a worl
33、dwide organization for standardization comprising all national electrotechnical 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 a
34、ctivities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subj
35、ect dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions det
36、ermined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Comm
37、ittees. 3) IEC Publications have the form of recommendations for international 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 whic
38、h 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 Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publicat
39、ion and the corresponding national or regional publication shall be 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
40、 responsible for any services carried out by independent certification 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 technic
41、al committees and IEC National Committees for any personal injury, 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 Pu
42、blications. 8) Attention is drawn to the Normative references cited 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
43、of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard 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 vot
44、ing 91/1351/FDIS 91/1364/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. BS EN 61249-2-44:2016IEC 61249-2-44:2016 IEC 2016 5 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A
45、list of all parts of the IEC 61249 series, under the general title Materials for printed boards and 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 w
46、eb 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, or amended. BS EN 61249-2-44:2016 6 IEC 61249-2-44:2016 IEC 2016 MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING
47、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 1 Scope This part of IEC 61249 gives requirements for properties of non-halog
48、enated 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 flammability rating is achieved through the use of non-halogenated fire retardant
49、s reacted as part of the epoxide polymeric structure. The glass transition temperature is defined to be 105 C minimum. 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 references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its a
