EN 61249-2-5-2003 en Materials for printed boards and other interconnecting structures Part 2-5 Reinforced base materials clad and unclad C Brominated epoxide cellulose paper reinf.pdf

1、BRITISH STANDARDBS EN 61249-2-5:2003IncorporatingCorrigendum No. 1Materials for printed boards and other interconnecting structures Part 2-5: Reinforced base materials, clad and unclad Brominated epoxide cellulose paper reinforced core/woven E-glass reinforced surfaces laminated sheets of defined fl

2、ammability (vertical burning test), copper-cladThe European Standard EN 61249-2-5:2003 has the status of a British StandardICS 31.180g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g5

3、0g51g60g53g44g42g43g55g3g47g36g58BS EN 61249-2-5:2003This British Standard was published under the authority of the Standards Policy and Strategy Committee on 19 February 2004 BSI June 2006ISBN 0 580 43420 6National forewordThis British Standard is the official English language version of EN 61249-2

4、-5:2003, including Corrigendum July 2005. It is identical with IEC 61249-2-5:2003The UK participation in its preparation was entrusted to Technical CommitteeEPL/501, Electronic assembly technology, which has the responsibility to: A list of organizations represented on this committee can be obtained

5、 on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the

6、 BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquir

7、ers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis documen

8、t comprises a front cover, an inside front cover, the EN title page,pages 2 to 21 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No.16315 June 2006 Caution added to CENELEC forewordCorrigendum N

9、o. 1 Date CommentsEUROPEAN STANDARD EN 61249-2-5 NORME EUROPENNE EUROPISCHE NORM December 2003 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B -

10、 1050 Brussels 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61249-2-5:2003 E ICS 31.180 Incorporates Corrigendum July 2005English version Materials for printed boards and other interconnecting structures Part 2-5: Reinforc

11、ed base materials, clad and unclad Brominated epoxide cellulose paper reinforced core / woven E-glass reinforced surfaces laminated sheets of defined flammability (vertical burning test), copper-clad (IEC 61249-2-5:2003) Matriaux pour circuits imprims et autres structures dinterconnexion Partie 2-5:

12、 Matriaux de base renforcs, plaqus et non plaqus Feuilles stratifies avec couches centrales renforces en papier cellulose poxyde brom et couches superficielles renforces en tissu de verre de type E poxyde, dinflammabilit dfinie (essai de combustion verticale), plaques cuivre (CEI 61249-2-5:2003) Mat

13、erialien fr Verbindungsstrukturen Teil 2-5: Kaschierte und unkaschierte verstrkte Basismaterialien Kupferkaschierte mit Zellulose-Papier-Innenlagen und E-Glasgewebe-Auenlagen verstrkte Laminattafeln auf der Basis von bromiertem Epoxidharz mit definierter Brennbarkeit (Brennprfung mit vertikaler Prfl

14、ingslage) (IEC 61249-2-5:2003) This European Standard was approved by CENELEC on 2003-12-01. 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-

15、date lists and bibliographical references concerning such national 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 und

16、er the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary,

17、Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. Page 2EN 6124925:2003Foreword The text of document 91/410/FDIS, future edition 1 of IEC 61249-2-5, prepared by IEC TC 91, Electronics assembly technology, wa

18、s submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61249-2-5 on 2003-12-01. 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 endorsement (dop) 2004-09-01 latest date

19、by which the national standards conflicting with the EN have to be withdrawn (dow) 2006-12-01 CAUTION: EC directives including RoHS and WEEE may limit the use of some substances and this should be taken into account when applying this European Standard. Annexes designated “normative“ are part of the

20、 body of the standard. Annexes designated “informative“ are given for information only. In this standard, annex ZA is normative and annexes A, B and C are informative. Annex ZA has been added by CENELEC. The contents of the corrigendum of July 2005 have been included in this copy. _ _ _ Endorsement

21、notice The text of the International Standard IEC 61249-2-5:2003 was approved by CENELEC as a European Standard without any modification. _ _ _ CONTENTS 1 Scope.5 2 Normative references5 3 Materials and construction 6 3.1 Resin system.6 3.2 Reinforcement .6 3.3 Metal foil .6 4 Internal marking6 5 El

22、ectrical properties 6 6 Non-electrical properties of the copper-clad laminate 7 6.1 Appearance of the copper-clad sheet.7 6.2 Appearance of the unclad face.8 6.3 Laminate thickness8 6.4 Bow and twist 8 6.5 Properties related to the copper foil bond.9 6.6 Punching and machining10 6.7 Dimensional stab

23、ility10 6.8 Sheet sizes10 6.9 Cut panels.11 7 Non-electrical properties of the base material after complete removal of the copper foil.11 7.1 Appearance of the dielectric base material.11 7.2 Flexural strength12 7.3 Flammability 12 7.4 Water absorption .13 7.5 Measling13 7.6 Glass transition tempera

24、ture and cure factor14 8 Quality assurance .14 8.1 Quality system .14 8.2 Responsibility for inspection.14 8.3 Qualification inspection14 8.4 Quality conformance inspection .14 8.5 Certificate of conformance.15 8.6 Safety data sheet.15 9 Packaging and marking.15 10 Ordering information .15 Annex A (

25、informative) Engineering information .16 Annex B (informative) Common laminate construction 18 Annex C (informative) Guideline for qualification and conformance inspection.19 Annex ZA (normative) Normative references to international publications with their corresponding European publications20 Bibl

26、iography21 Page 3EN 6124925:2003Table 1 Electrical properties.6 Table 2 Nominal thickness and tolerance of metal-clad laminate.8 Table 3 Bow and twist 9 Table 4 Pull-off and peel strength .9 Table 5 Dimensional stability10 Table 6 Size tolerance for cut panels11 Table 7 Rectangularity of cut panels.

27、11 Table 8 Flexural strength12 Table 9 Flammability 13 Table 10 Water absorption .13 Table 11 Measling13 Table 12 Glass transition temperature and cure factor 14 Table C.1 Guideline for qualification and conformance inspection .19 Page 4EN 6124925:2003MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONN

28、ECTING STRUCTURES Part 2-5: Reinforced base materials, clad and unclad Brominated epoxide cellulose paper reinforced core / woven E-glass reinforced surfaces laminated sheets of defined flammability (vertical burning test), copper-clad 1 Scope This part of IEC 61249 gives requirements for properties

29、 of brominated epoxide cellulose paper reinforced core/woven E-glass reinforced surfaces-laminated sheets of defined flammability (vertical burning test), copper-clad in thicknesses of 0,80 mm up to 1,70 mm. The flammability rating is achieved through the use of brominated fire retardants reacted as

30、 part of the epoxide polymeric structure. The glass transition temperature is defined to be 75 C minimum. Some property requirements may have several classes of performance. The class desired needs to be specified on the purchase order, otherwise the default class of material may be supplied. 2 Norm

31、ative references 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 61189-2:1997, Test methods f

32、or electrical materials, 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 or without coatings Section 1: Copper foil (for t

33、he manufacture of copper-clad base materials) ISO 9000:2000, Quality management systems Fundamentals and vocabulary ISO 11014-1:1994, Safety data sheet for chemical products Part 1: Content and order of sections ISO 14001:1996, Environmental management systems Specification with guidance for use Pag

34、e 5EN 6124925:20033 Materials and construction The sheet consists of an insulating base with metal-foil bonded to one side or both. 3.1 Resin system Epoxide, modified or unmodified, resulting in a laminate with a glass transition temperature of 75 C minimum. Contrast agents may be added to enhance p

35、rocessing such as automated optical inspection (AOI). Its flame resistance is defined in terms of the flammability requirements of 7.3. 3.2 Reinforcement Woven E-glass as specified in IEC 61249-6-3, woven E-glass fabric (for the manufacture of prepreg and copper clad materials). Non-woven cellulose

36、paper reinforcement. 3.3 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. 4 Internal marking Not specified. 5 Electrical properties The requirements for the electrical property

37、 are shown in Table 1. Table 1 Electrical properties Property Test method (IEC 61189-2) Requirement Resistance of foil 2E12 As specified in IEC 61249-5-1 Surface resistance after damp heat while in the humidity chamber (optional) 2E03 3 000 M Surface resistance after damp heat and recovery 2E03 30 0

38、00 M Volume resistivity after damp heat while in the humidity chamber (optional) 2E04 1 000 Mm Volume resistivity after damp heat and recovery 2E04 5 000 Mm Relative permittivity after damp heat and recovery at 1 MHz 2E10 5,4 Dissipation factor after damp heat and recovery at 1MHz 2E10 0,045 Arc res

39、istance 2E14 60 s Surface resistance at 100 C 2E07 1 000 M Volume resistivity at 100 C 2E07 100 Mm Page 6EN 6124925:20036 Non-electrical properties of the copper-clad laminate 6.1 Appearance of the copper-clad sheet The copper-clad face shall be substantially free from defects that may have an impac

40、t on the material fitness for use for the intended purpose. For the following specific defects the requirements given shall apply when inspection is made in accordance with IEC 61189-2, Method 2M18. 6.1.1 Indentations (pits and dents) The size of an indentation, usually the length, shall be determin

41、ed and given a point value to be used as measure of the quality. Size mm Point value for each indentation 0,13 0,25 0,26 0,50 0,51 0,75 0,76 1,00 Over 1,00 1 2 4 7 30 The total point count for any 300 mm x 300 mm area shall be calculated to determine the indentation class of the material. Indentatio

42、n Class A 29 maximum total point count Indentation Class B 17 maximum total point count Indentation Class C 5 maximum total point count Indentation Class D 0 total point count Indentation Class X to be agreed upon by user and supplier. The required indentation class of material shall be specified in

43、 the purchase order. Indentation Class A applies unless otherwise specified. 6.1.2 Wrinkles There shall be no wrinkles in the copper surface. 6.1.3 Scratches Scratches deeper than 10 m or 20 % of the nominal thickness of the foil thickness, whichever is lower, are not permitted. Scratches with a dep

44、th less than 5 % of the nominal thickness of the foil shall not be counted unless this 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. Page 7EN 6124925:20036.1.4 Raised areas R

45、aised areas are usually impressions caused by defects in the press plates used during manufacture but may also be caused by blisters or inclusions of foreign particles under the foil. Raised areas caused by blisters or inclusions are not permitted. Raised areas caused by impressions of defects in pr

46、ess plates are permitted to the following extent: Indentation Class A and X material Maximum height 15 m and maximum length 15 mm Indentation Class B and C material Maximum height 8 m and maximum length 15 mm Indentation Class D material Maximum height 5 m and maximum length 15 mm. 6.1.5 Surface wav

47、iness When examined in accordance with test method 2M12 of IEC 61189-2, the surface waviness in both the machine and cross machine direction shall not exceed 7 m. 6.2 Appearance of the unclad face The unclad face of single-sided clad sheets shall have the natural appearance resulting from the curing

48、 process. Small irregularities in colour are permitted. The gloss of the unclad face shall be that given by the press plate, release film or release foil used. Variations of gloss due to the impact of pressure of gases released during the curing are permitted. 6.3 Laminate thickness If the copper-cl

49、ad laminate is tested in accordance with test method 2D01 of IEC 61189-2, the thickness shall not depart from the nominal thickness by more than the appropriate value shown in Table 2. The fine tolerances shall apply unless the other tolerances are ordered. Table 2 Nominal thickness and tolerance of metal-clad laminate Tolerance mm Property Test method (IEC 61189-2) Nominal thickness including metal foil mm Coarse Fine Extra fi