1、BRITISH STANDARD BS EN 61249-2-13: 1999 IEC 61249-2-13: 1999 Materials for printed boards and other interconnecting structures Part 2-13: Sectional specification set for reinforced base materials, clad and unclad Cyanate ester non-woven aramid laminate of defined flammability, copper-clad The Europe
2、an Standard EN 61249-2-13:1999 has the status of a British Standard ICS 31.180BSEN61249-2-13:1999 This British Standard, having been prepared under the directionof the Electrotechnical Sector Committee, was publishedunder the authority ofthe Standards Committeeandcomes into effect on 15June1999 BSI
3、03-2000 ISBN 0 580 32519 9 National foreword This British Standard is the English language version of EN61249-2-13:1999. It is identical with IEC61249-2-13:1999. The UK participation in its preparation was entrusted to Technical Committee EPL/501, Electronic assembly technology, which has the respon
4、sibility to: 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 and European developments and promulgate them in the UK. A li
5、st of organizations represented on this committee can be obtained on request to its secretary. From 1 January1997, all IEC publications have the number60000 added to the old number. For instance, IEC27-1 has been renumbered as IEC60027-1. For a period of time during the change over from one numberin
6、g system to the other, publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The B
7、ritish Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not
8、purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside fro
9、nt cover, pages i and ii, theEN title page, pages 2 to 14, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication
10、 Amd. No. Date CommentsBSEN61249-2-13:1999 BSI 03-2000 i Contents Page National foreword Inside front cover Foreword 2 Text of EN 61249-2-13 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61249-2-13 April 1999 ICS 31.180 English version Materials for printed boards and other interconn
11、ecting structures Part 2-13: Sectional specification set for reinforced base materials, clad and unclad Cyanate ester non-woven aramid laminate of defined flammability, copper clad (IEC 61249-2-13:1999) Matriaux pour circuits imprims et autres structures dinterconnexion Partie2-13: Collection de spc
12、ifications intermdiaires pour les matriaux de base renforcs, recouverts ou non de feuille conductrice Stratifi base daramide non tiss coll avec de la rsine cyanate ester, recouvert de cuivre, dinflammabilit dfinie (CEI61249-2-13:1999) Materialien fr Leiterplatten und andere Verbindungsstrukturen Tei
13、l2-13: Rahmenspezifikation fr verstrkte, kaschierte und unkaschierte Basismaterialien Aramidwirrfaser- verstrktes Cyanatester-Laminat definierter Brennbarkeit, kupferkaschiert (IEC61249-2-13:1999) This European Standard was approved by CENELEC on1999-04-01. CENELEC members are bound to comply with t
14、he 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 Secretariat
15、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 offi
16、cial versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee fo
17、r Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1999 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Re
18、f. No. EN 61249-2-13:1999 EEN61249-2-13:1999 BSI 03-2000 2 Foreword The text of document 52/791/FDIS, future edition1 of IEC61249-2-13, prepared by IECTC52, Printed circuits, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN61249-2-13 on1999-04-01. The following dates
19、were fixed: Annexes designated “normative” are part of the body of the standard. Annexes designated “informative” are given for information only. In this standard, Annex ZA is normative and Annex A is informative. Annex ZA has been added by CENELEC. Endorsement notice The text of the International S
20、tandard IEC61249-2-13:1999 was approved by CENELEC as a European Standard without any modification. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Materials and construction 3 4 Internal marking 3 5 Electrical properties 4 6 Non-electrical properties of the copper-clad laminate 4 7 No
21、n-electrical properties of the base material after complete removal of the copper foil 8 8 Packaging and marking 9 9 Acceptance testing 10 Annex A (informative) Conversion table for test method reference numbers 11 Annex ZA (normative) Normative references to international publications with their co
22、rresponding European publications Inside back cover Table 1 Electrical properties 4 Table 2 Types, sizes and permitted number of imperfections 5 Table 3 Nominal thickness and tolerances of metal-clad laminate 6 Table 4 Pull-off and peel strength 7 Table 5 Dimensional stability 7 Table 6 Size toleran
23、ces for cut panels 8 Table 7 Rectangularity of cut panels 8 Table 8 Flexural strength 8 Table 9 Flammability 8 Table 10 Water absorption 9 Table 11 Glass transition temperature and cure factor 9 Table 12 Thermal coefficient of expansion 9 Table 13 Recommended acceptance tests 10 latest date by which
24、 the ENhas to be implemented atnational level by publication of an identical national standard or by endorsement (dop) 2000-01-01 latest date by which the national standards conflicting with the EN haveto be withdrawn (dow) 2002-04-01EN61249-2-13:1999 BSI 03-2000 3 1 Scope This part of IEC61249 give
25、s requirements for properties of cyanate ester non-woven aramid copper-clad laminate of defined flammability, in thicknesses of0,05mm up to6,4mm. NOTETo designate this material, the reference:61249-2-13 FV10IECCEAP Cu may be used; if there is no risk of confusion, the type designation may be abbrevi
26、ated to read IEC-61249-2-13-FV1. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC61249-2. At the time of publication, the editions indicated were valid. All normative documents are subject to
27、revision, and parties to agreements based on this part of IEC61249-2 are encouraged to investigate the possibility of applying the most recent editions of the normative documents listed below. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 61189-2:1997, Tes
28、t methods for electrical materials, interconnection structures and assemblies Part2: Test methods for materials for interconnection structures. IEC 61249-5-1:1995, Materials for printed boards and interconnecting structures Part5: Sectional specification set for conductive foils and films with or wi
29、thout coatings Section1: Copper foils (for the manufacture of copper-clad base materials). 3 Materials and construction The material consists of an insulating base with metal foil bonded to one side or both. 3.1 Insulating base Cyanate ester resin bonded non-woven aramid laminate. Its flame resistan
30、ce is defined in terms of the flammability requirements of7.3. 3.2 Metal foil Copper as specified in IEC61249-5-1. The preferred foils are typeE1 (standard electro-deposited copper) of standard ductility. 4 Internal marking Not specified.EN61249-2-13:1999 4 BSI 03-2000 5 Electrical properties Table
31、1 Electrical properties 6 Non-electrical properties of the copper-clad laminate 6.1 Appearance of the copper-clad face 6.1.1 Normal surface appearance The copper-clad face shall be substantially free from blisters, wrinkles, pin-holes, deep scratches, pits and resin. Any discoloration or contaminati
32、on shall be readily removable with a hydrochloric acid solution of density1,02g/cm 2with a suitable organic solvent. 6.1.2 Qualified surface appearance (optional) If a surface of high quality is essential for precious metal plating or fine line etching and is ordered by the purchaser, the following
33、requirements shall apply in addition to those of6.1.1 when inspected in accordance with2M18 of IEC61189-2. The surface appearance of the copper-clad face shall be such as not to conceal imperfections. The surface of the copper foil shall be free from scratches of depth greater than104m or1/5 of the
34、nominal thickness of the copper foil, whichever is lower. The total length of scratches of depth greater than54m but not more than104m shall not exceed1m per square metre of the total area of the sheet under test. This requirement applies to the surface of354m and704m (305g/m 2and610g/m 2 ) foils. P
35、ermitted scratches on surfaces of184m (152g/m 2 ) foil are still under consideration. The total area of all pin-holes in an area of0,5m 2shall not exceed0,012mm 2 . No sheet shall have more imperfections of the types listed than those permitted byTable 2. 6.1.3 Surface waviness (optional) Under cons
36、ideration. Property Test method (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 M7 min. Surface resistance after damp heat and recovery 2E03 100 000 M7 min. Volume resistivity aft
37、er damp heat while in the humidity chamber (optional) 2E04 1 000 M7m min. Volume resistivity after damp heat and recovery 2E04 10 000 M7m min. Surface corrosion 2E08 No visible corrosion products in the gap Corrosion at the edge 2E13 Positive pole: not worse than A/B Negative pole: not worse than1,4
38、 Relative permittivity after damp heat and recovery 2E10 The average value shall not exceed 4,0 Dielectric dissipation factor after damp heat and recovery 2E10 The average value shall not exceed0,03 Electrical strength (optional) material thickness not greater than0,8mm 2E11 30 kV/mm min. Surface re
39、sistance at200 C 2E07 100 000 M7 min. Volume resistivity at200 C 2E07 10 000 M7m min.EN61249-2-13:1999 BSI 03-2000 5 6.2 Appearance of the unclad face The unclad face of laminate, copper-clad on one side only, shall be free from all materials, for example release agents, oils or lubricants, that mig
40、ht interfere with its adhesion in the multilayer fabrication operation. Table 2 Types, sizes and permitted number of imperfections 6.3 Thickness Including copper foil If the copper-clad laminate is tested in accordance with test method2D01 of IEC61189-2, the thickness, including the copper foil, sha
41、ll not depart from the nominal thickness by more than the appropriate value shown inTable 3. The coarse tolerances shall apply unless the fine tolerances are ordered. Excluding copper foil If the base material is tested in accordance with test method2D01 of IEC61189-2 the thickness, excluding the co
42、pper foil, shall not depart from the nominal thickness by more than the appropriate value shown inTable 3. The coarse tolerances shall apply unless the fine tolerances are ordered. Type Size (length unless otherwise indicated) Number of imperfections permitted Above mm Not above mm In any sheet of a
43、rea about 1 m 2 In any area 300 mm 300 mm Inclusions 0,1 0,25 0,1 0,25 Any number 30 0 Any number 4 0 Indentations 0,25 1,25 3,0 or width 1,0 0,25 1,25 3,0 or width 1,0 Any number 13 b 3 b 0 Any number 3 a 1 a 0 Bumps 0,1 4,0 or height 0,1 0,1 4,0 or height 0,1 Any number 10 0 Any number 2 0 Wrinkle
44、s Blisters Of any size 0 0 NOTEFor sheets 1m 2or greater, the values of the fourth column apply for any area of1m 2 ; for the same sheets in any area of300mm 300mm, however, the values of the fifth column apply. For sheets smaller than 1m 2 , the fifth column applies for any area of300mm 300mm. a Th
45、e total for these sizes of indentation is 3. b The total for these sizes of indentation is 13.EN61249-2-13:1999 6 BSI 03-2000 Table 3 Nominal thickness and tolerances of metal-clad laminate The thickness and tolerance do not apply to the outer25mm of the trimmed laminate as manufactured and delivere
46、d by the supplier. At least90% of the area, regardless of size, shall be within the tolerance given, and at no point shall the thickness vary from the nominal by a value greater than125% of the specified tolerance. For any nominal thickness within the range of0,8mm to6,4mm, which is not given in the
47、 table of nominal thicknesses and corresponding tolerances, the tolerance applicable to the thickness shall be that for the next greater nominal thickness given inTable 3. 6.4 Bow and twist Under consideration. Nominal thickness with copper foil Tolerance mm mm Coarse (normal) Fine (special) 0,8 0,1
48、5 0,09 1,0 0,17 0,11 1,2 0,18 0,12 1,5 0,20 0,14 1,6 0,20 0,14 2,0 0,23 0,15 2,4 0,25 0,18 3,2 0,30 0,20 6,4 0,56 0,30 Nominal thickness without copper foil Coarse (normal) Fine (special) mm U 0,05; 0,11 0,03 0,02 U 0,11; 0,15 0,04 0,03 U 0,15; 0,3 0,05 0,04 U 0,3; 0,5 0,08 0,05 U 0,5; 0,8 0,09 0,06
49、EN61249-2-13:1999 BSI 03-2000 7 6.5 Properties relating to the copper foil bond Table 4 Pull-off and peel strength 6.6 Punching and machining Punching is not applicable. The laminate shall, in accordance with the manufacturers recommendations, be capable of being sheared or drilled. Delamination at the edges due to the shearing process is permissible, provided the depth of delamination may not be larger than the thickness of the base material. Delamination at th
