BS EN 61249-2-5-2003 Materials for printed boards and other interconnecting structures - Part 2-5 Reinforced base materials clad and unclad - Brominated epoxide cellulose paper rei.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、0g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Fri Sep 22 07:54:58 BST 2006, Uncontrolled Copy, (c) BSIBS 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

4、 forewordThis British Standard is the official English language version of EN 61249-2-5:2003, 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 res

5、ponsibility to: A list of organizations represented on this committee can be obtained 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 “In

6、ternational Standards Correspondence Index”, or by using the “Search” facility of the 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 B

7、ritish Standard does not of itself confer immunity from legal obligations. aid enquirers 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

8、 and European developments and promulgate them in the UK.Summary of pagesThis document 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 si

9、nce publicationAmd. No.16315 June 2006 Caution added to CENELEC forewordCorrigendum No. 1 Date CommentsLicensed Copy: Wang Bin, na, Fri Sep 22 07:54:58 BST 2006, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD EN 61249-2-5 NORME EUROPENNE EUROPISCHE NORM December 2003 CENELEC European Committee for Elec

10、trotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref.

11、 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: Reinforced base materials, clad and unclad Brominated epoxide cellulose paper reinforced core / woven E-glass reinforced surfaces laminate

12、d 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: Matriaux de base renforcs, plaqus et non plaqus Feuilles stratifies avec couches centrales renforces en papier cellulose poxyde b

13、rom 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) Materialien fr Verbindungsstrukturen Teil 2-5: Kaschierte und unkaschierte verstrkte Basismaterialien Kupferkaschierte mit Zellulose-

14、Papier-Innenlagen und E-Glasgewebe-Auenlagen verstrkte Laminattafeln auf der Basis von bromiertem Epoxidharz mit definierter Brennbarkeit (Brennprfung mit vertikaler Prflingslage) (IEC 61249-2-5:2003) This European Standard was approved by CENELEC on 2003-12-01. CENELEC members are bound to comply w

15、ith 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 national standards may be obtained on application to the Central Secreta

16、riat 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 language and notified to the Central Secretariat has the same status as the

17、 official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and Uni

18、ted Kingdom. Licensed Copy: Wang Bin, na, Fri Sep 22 07:54:58 BST 2006, Uncontrolled Copy, (c) BSIPage 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, was submitted to the IEC-CENELEC parallel vote

19、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 by which the national standards conflicting w

20、ith 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 body of the standard. Annexes designated “in

21、formative“ 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 notice The text of the International Standard

22、 IEC 61249-2-5:2003 was approved by CENELEC as a European Standard without any modification. _ _ _ Licensed Copy: Wang Bin, na, Fri Sep 22 07:54:58 BST 2006, Uncontrolled Copy, (c) BSICONTENTS 1 Scope.5 2 Normative references5 3 Materials and construction 6 3.1 Resin system.6 3.2 Reinforcement .6 3.

23、3 Metal foil .6 4 Internal marking6 5 Electrical 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 Punch

24、ing and machining10 6.7 Dimensional stability10 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

25、 Measling13 7.6 Glass transition temperature 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.

26、15 10 Ordering information .15 Annex A (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 co

27、rresponding European publications20 Bibliography21 Page 3EN 6124925:2003Licensed Copy: Wang Bin, na, Fri Sep 22 07:54:58 BST 2006, Uncontrolled Copy, (c) BSITable 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 p

28、eel strength .9 Table 5 Dimensional stability10 Table 6 Size tolerance for cut panels11 Table 7 Rectangularity of cut panels.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 Gui

29、deline for qualification and conformance inspection .19 Page 4EN 6124925:2003Licensed Copy: Wang Bin, na, Fri Sep 22 07:54:58 BST 2006, Uncontrolled Copy, (c) BSIMATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES Part 2-5: Reinforced base materials, clad and unclad Brominated epoxide

30、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 of brominated epoxide cellulose paper reinforced core/woven E-glass reinforced surfaces-l

31、aminated 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 part of the epoxide polymeric structure. The glass transition temperature is defined to b

32、e 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 Normative references The following referenced documents are indispensable for the application

33、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 for electrical materials, interconnection structures and assemblies Part 2: Test method for

34、 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 the manufacture of copper-clad base materials) ISO 9000:2000, Quality management systems Fu

35、ndamentals 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 Page 5EN 6124925:2003Licensed Copy: Wang Bin, na, Fri Sep 22 07:54:58 BST 2006, Uncontrolled

36、Copy, (c) BSI3 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 proces

37、sing 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 paper

38、 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 are

39、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 30 000 M

40、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 resistan

41、ce 2E14 60 s Surface resistance at 100 C 2E07 1 000 M Volume resistivity at 100 C 2E07 100 Mm Page 6EN 6124925:2003Licensed Copy: Wang Bin, na, Fri Sep 22 07:54:58 BST 2006, Uncontrolled Copy, (c) BSI6 Non-electrical properties of the copper-clad laminate 6.1 Appearance of the copper-clad sheet The

42、copper-clad face shall be substantially free from defects that may have an impact 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 (p

43、its 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 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 sh

44、all be calculated to determine the indentation class of the material. Indentation 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 use

45、r and supplier. The required indentation class of material shall be specified in 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

46、 the foil thickness, whichever is lower, are not permitted. Scratches with a depth 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 leng

47、th of 100 mm for a 300 mm 300 mm area. Page 7EN 6124925:2003Licensed Copy: Wang Bin, na, Fri Sep 22 07:54:58 BST 2006, Uncontrolled Copy, (c) BSI6.1.4 Raised areas Raised areas are usually impressions caused by defects in the press plates used during manufacture but may also be caused by blisters or

48、 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 press plates are permitted to the following extent: Indentation Class A and X material Maximum height 15 m and maximum length 15 mm Inden

49、tation 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 waviness 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 appear