BS EN 61249-2-37-2009 Materials for printed boards nand other interconnecting nstructures — nPart 2-37 Reinforced base materials clad and nunclad — Modified non-halogenated epoxide.pdf

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1、Materials for printed boardsand other interconnectingstructures Part 2-37: Reinforced base materials, clad andunclad Modified non-halogenated epoxidewoven E-glass laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assemblyBS EN 61249-2-37:2009raising standards

2、 worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsNational forewordThis British Standard is the UK implementation of EN 61249-2-37:2009. It isidentical to IEC 61249-2-37:2008.The UK participation in its preparation was entrusted to Technical Committ

3、eeEPL/501, Electronic assembly 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 of acontract. Users are responsible for its correct application. BSI 2009ISBN 978 0 580

4、 58819 8ICS 31.180Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 30 April 2009Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN

5、61249-2-37:2009EUROPEAN STANDARD EN 61249-2-37 NORME EUROPENNE EUROPISCHE NORM March 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: avenue Marnix 17, B - 1000 B

6、russels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61249-2-37:2009 E ICS 31.180 English version Materials for printed boards and other interconnecting structures - Part 2-37: Reinforced base materials, clad and unclad -

7、Modified non-halogenated epoxide woven E-glass laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assembly (IEC 61249-2-37:2008) Matriaux pour circuits imprims et autres structures dinterconnexion - Partie 2-37: Matriaux de base renforcs, plaqus et non plaqus

8、- Feuilles stratifies en tissu de verre de type E poxyde modifi non halogn, plaques cuivre, dinflammabilit dfinie (essai de combustion verticale) pour les assemblages sans plomb (CEI 61249-2-37:2008) Materialien fr Leiterplatten und andere Verbindungsstrukturen - Teil 2-37: Kaschierte und unkaschier

9、te verstrkte Basismaterialien - Kupferkaschierte mit E-Glasgewebe verstrkte Laminattafeln auf der Basis von modifiziertem halogenfreiem Epoxidharz mit definierter Brennbarkeit (Brennprfung mit vertikaler Prflingslage) fr bleifreie Bestckungstechnik (IEC 61249-2-37:2008) This European Standard was ap

10、proved by CENELEC on 2009-02-01. 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 references concerning such na

11、tional standards may be obtained on application to the Central Secretariat 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 a CENELEC member into its own langu

12、age and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latv

13、ia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 61249-2-37:2009EN 61249-2-37:2009 2 Foreword The text of document 91/811/FDIS, future edition 1 of IEC 61249-2-37, prepared by IEC TC 91,

14、 Electronics assembly technology, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61249-2-37 on 2009-02-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endo

15、rsement (dop) 2009-11-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-02-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61249-2-37:2008 was approved by CENELEC as a European Standard withou

16、t any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated: IEC 60194 NOTE Harmonized as EN 60194:2006 (not modified). _ BS EN 61249-2-37:2009 3 EN 61249-2-37:2009 Annex ZA (normative) Normative references to international publication

17、s with their corresponding European publications 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.

18、NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. 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: Tes

19、t methods for materials for interconnection structures EN 61189-2 2006 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: Copper foils (for the manufacture of copper-clad base materia

20、ls) EN 61249-5-1 1996 ISO 9000 - 1)Quality management systems - Fundamentals and vocabulary EN ISO 9000 2005 2)ISO 11014-1 - 1)Safety data sheet for chemical products - Part 1: Content and order of sections - - ISO 14001 - 1)Environmental management systems - Requirements with guidance for use EN IS

21、O 14001 2004 2)1)Undated reference. 2) Valid edition at date of issue. BS EN 61249-2-37:2009 2 61249-2-37 IEC:2008 CONTENTS 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 Electrical properties 7 6 Non-e

22、lectrical 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 6.4 Bow and twist 9 6.5 Prop

23、erties 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 Rectangularity of cut panels

24、 .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 factor14 7.7 Decomposition

25、temperature .14 7.8 Thermal resistance 15 7.9 Z-axis expansion .15 8 Quality assurance .15 8.1 Quality system .15 8.2 Responsibility for inspection.15 8.3 Qualification inspection15 8.4 Quality conformance inspection .16 8.5 Certificate of conformance.16 BS EN 61249-2-37:200961249-2-37 IEC:2008 3 8.

26、6 Safety data sheet.16 9 Packaging and marking.16 10 Ordering information .16 Annex A (informative) Engineering information .18 Annex B (informative) Common laminate constructions.20 Annex C (informative) Guideline for qualification and conformance inspection.21 Bibliography22 Table 1 Electrical pro

27、perties .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 Flammabili

28、ty 13 Table 10 Water absorption .14 Table 11 Measling14 Table 12 Glass transition temperature and cure factor 14 Table 13 Decomposition temperature .15 Table 14 Thermal resistance 15 Table 15 Z-axis expansion15 BS EN 61249-2-37:2009 6 61249-2-37 IEC:2008 MATERIALS FOR PRINTED BOARDS AND OTHER INTERC

29、ONNECTING STRUCTURES Part 2-37: Reinforced base materials, clad and unclad Modified non-halogenated epoxide woven E-glass 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 modified n

30、on-halogenated 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 150 C to 200 C. Its flame resistance is defined in terms of the flammability requirements of 7.3. Some property re

31、quirements 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 refer

32、ences, 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 method for interco

33、nnection 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: Copper foils (for the manufacture of copper-clad base materials) ISO 9000, Quality management systems Fundamentals

34、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 Materials and construction The sheet consists of an insulating base with metal-foil bonded to one side or both. 3

35、.1 Resin system Majority di-functional non-halogenated epoxide, modified non-halogenated epoxide, woven E-glass laminate with a glass transition temperature of 150 C to 200 C. The flammability rating is achieved through the use of non-halogenated flame retardants reacted into the polymer. Inorganic

36、fillers may be used. Contrast agents may be added to enhance processing such as automated optical inspection (AOI). BS EN 61249-2-37:200961249-2-37 IEC:2008 7 The maximum total halogens contained in the resin plus reinforcement matrix is 1 500 10-6 with a maximum chlorine of 900 10-6 and maximum bro

37、mine being 900 10-6. Its flame resistance is defined in terms of the flammability requirements of 7.3. 3.2 Metal foil Copper as specified in IEC 61249-5-1, copper foil (for the manufacture of copper-clad materials). The preferred foils are electro-deposited of defined ductility. 3.3 Reinforcement Wo

38、ven E-glass as specified in the future IEC 61249-6-3, woven E-glass fabric (for the manufacture of prepreg and copper clad materials). 4 Internal marking Not specified. 5 Electrical properties The electrical property requirements are shown in Table 1. Table 1 Electrical properties Property Test meth

39、od (IEC 61189-2) Requirements Resistance of foil 2E12 As specified in IEC 61249-5-1 Surface resistance after damp heat while in the humidity chamber (optional) 2E03 10 000 M Surface resistance after damp heat and recovery 2E03 50 000 M Volume resistivity after damp heat while in the humidity chamber

40、 (optional) 2E04 5 000 Mm Volume resistivity after damp heat and recovery 2E04 10 000 Mm Relative permittivity after damp heat and recovery (1 MHz) 2E10 5,4 Dissipation factor after damp heat and recovery (1Mhz) 2E10 0,035 Electric strength (only for material thickness less than 0,5 mm ) 2E11 30 kV/

41、mm Arc resistance 2E14 60 s Dielectric breakdown (only for material thicknesses 0,5 mm) 2E15 40 kV Surface resistance at 125 C 2E07 1 000 M Volume resistivity at 125 C 2E07 1 000 Mm 6 Non-electrical properties of the copper-clad laminate 6.1 Appearance of the copper-clad sheet The copper-clad face s

42、hall be substantially free from defects that may have an impact on the materials fitness for use for the intended purpose. BS EN 61249-2-37:2009 8 61249-2-37 IEC:2008 For the following specific defects the requirements given shall apply when inspection is made in accordance with IEC 61189-2, method

43、2M18. 6.1.1 Indentations (pits and dents) The size of an indentation, usually the length, shall be determined and given a point value to be used as measure of the quality. Size mm Point value for each indentation 0,13 0,25 1 0,26 0,50 2 0,51 0,75 4 0,76 1,00 7 Over 1,00 30 The total point count for

44、any 300 mm 300 mm area shall be calculated to determine the class of the material. Class A 29 maximum Class B 17 maximum Class C 5 maximum Class D 0 Class X To be agreed upon by user and supplier The required class of material shall be specified in the purchase order. Class A applies unless otherwis

45、e specified. 6.1.2 6.1.3 6.1.4 Wrinkles There shall be no wrinkles in the copper surface. Scratches Scratches deeper than 20 % of the nominal thickness of the foil thickness are not permitted. Scratches with a depth less than 5 % of the nominal thickness of the foil shall not be counted unless this

46、depth is 10 m or more. Scratches with a depth between 5 % and 20 % of the nominal thickness of the foil are permitted to a total length of 100 mm for a 300 mm 300 mm area. Raised areas Raised areas are usually impressions in the press plates used during manufacture but may also be caused by blisters

47、 or inclusions of foreign particles under the foil. Raised areas caused by blisters or inclusions are not permitted. Raised areas being impressions of defects in press plates are permitted to the following extent: Class A and X material maximum height 15 m and maximum length 15 mm; Class B and C mat

48、erial maximum height 8 m and maximum length 15 mm; Class D material maximum height 5 m and maximum length 15 mm. BS EN 61249-2-37:200961249-2-37 IEC:2008 9 6.1.5 Surface waviness When examined in accordance with test method 2M12 of IEC 61189-2, the surface waviness in both the machine and cross mach

49、ine direction shall not exceed 7 m. 6.2 Appearance of the unclad face The unclad face of single side clad sheet shall have the natural appearance resulting from the curing process. Small irregularities in colour are permitted. The gloss of the unclad face shall be that given by the press plate or release foil used. Variations of gloss due to the impact of pressure of gases released d

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