1、BRITISH STANDARDBS EN61249-2-2:2005Materials for printed boards and other interconnecting structures Part 2-2: Reinforced base materials, clad and unclad Phenolic cellulose paper reinforced laminate sheets, high electrical grade, copper-cladThe European Standard EN 61249-2-2:2005 has the status of a
2、 British StandardICS 31.180g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 61249-2-2:2005This British Standard was published under the authori
3、ty of the Standards Policy and Strategy Committee on 30 June 2006 BSI 2006ISBN 0 580 45935 7National forewordThis British Standard is the official English language version of EN 61249-2-2:2005. It is identical with IEC 61249-2-2:2005. It supersedes BS EN 60249-2-1:1994 and BS EN 60249-2-7:1994 which
4、 are withdrawn. The UK participation in its preparation was entrusted to Technical Committee EPL/501, Electronic assembly technology, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standar
5、ds 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 BSI Electronic Catalogue or of British Standards Online.This pu
6、blication 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 enquirers to understand the text; present to the responsible internat
7、ional/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international 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
8、, pages 2 to 15 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARD EN 61249-2-2 NORME EUROPENNE EUROPISCHE NORM March 2005 CENELEC European Committee for Electrote
9、chnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No.
10、EN 61249-2-2:2005 E ICS 31.180 English version Materials for printed boards and other interconnecting structures Part 2-2: Reinforced base materials, clad and unclad Phenolic cellulose paper reinforced laminate sheets, high electrical grade, copper-clad (IEC 61249-2-2:2005) Matriaux pour circuits im
11、prims et autres structures dinterconnexion Partie 2-2: Matriaux de base renforcs, plaqus et non plaqus Feuilles stratifies renforces de papier cellulose phnolique, de haute qualit lectrique, plaques cuivre (CEI 61249-2-2:2005) Materialien fr Leiterplatten und andere Verbindungsstrukturen Teil 2-2: K
12、aschierte und unkaschierte verstrkte Basismaterialien Kupferkaschierte Phenolharz-Hartpapiertafeln hoher elektrischer Qualitt (IEC 61249-2-2:2005) This European Standard was approved by CENELEC on 2005-02-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipula
13、te 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 or to any CENELEC member. This European Standard
14、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 official versions. CENELEC members are the national e
15、lectrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom
16、. Foreword The text of document 91/497/FDIS, future edition 1 of IEC 61249-2-2, prepared by IEC TC 91, Electronics assembly technology, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61249-2-2 on 2005-02-01. The following dates were fixed: latest date by which the E
17、N has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2005-11-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2008-02-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of
18、 the International Standard IEC 61249-2-2:2005 was approved by CENELEC as a European Standard without any modification. _ 2 EN 61249-2-2:2005 3 EN 61249-2-2:2005 CONTENTS 1 Scope 5 2 Normative references. 5 3 Materials and construction . 5 3.1 Resin system 6 3.2 Reinforcement 6 3.3 Metal foil 6 4 In
19、ternal marking. 6 5 Electrical properties. 6 6 Non-electrical properties of the copper-clad laminate sheet 7 6.1 Appearance of the copper-clad sheet 7 6.2 Appearance of the unclad face 8 6.3 Laminate thickness, including copper foil. 8 6.4 Bow and twist . 9 6.5 Properties related to the copper foil
20、bond 9 6.6 Punching and machining 10 6.7 Dimensional stability10 6.8 Sheet sizes10 6.9 Cut panels.10 7 Non-electrical properties of the base material after complete removal of the copper foil11 7.1 Appearance of the dielectric base material .11 7.2 Flexural strength11 7.3 Flammability 11 7.4 Water a
21、bsorption .12 7.5 Measling12 7.6 Glass transition temperature and cure factor 12 8 Quality assurance.12 8.1 Quality system.12 8.2 Responsibility for inspection.13 8.3 Qualification inspection13 8.4 Quality conformance inspection13 8.5 Certificate of conformance .13 8.6 Safety data sheet.13 9 Packagi
22、ng and marking.13 10 Ordering information.13 Annex ZA (normative) Normative references to international publications with their corresponding European publications . 15 Table 1 Electrical properties 6 Table 2 Nominal thickness and tolerance of metal-clad laminate 8 Table 3 Bow and twist . 9 Table 4
23、Pull-off and peel strength 9 Table 5 Size tolerance for cut panels10 Table 6 Rectangularity of cut panels.11 Table 7 Flexural strength11 EN 61249-2-2:2005 4 Table 8 Flammability, horizontal burning test 11 Table 9 Flammability, vertical burning test 12 Table 10 Water absorption .12 5 EN 61249-2-2:20
24、05 MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES Part 2-2: Reinforced base materials, clad and unclad Phenolic cellulose paper reinforced laminated sheets, high electrical grade, copper-clad 1 Scope This part of IEC 61249 gives requirements for properties of phenolic cellulose pa
25、per, reinforced copper-clad laminated sheets of high electrical grade in thicknesses of 0,8 mm to 3,2 mm. This standard covers materials with different requirements on flammability and are designated according to the following: Material 61249-2-2-1: general purpose grade, requirement on flammability
26、 not specified (see 7.3.2); Material 61249-2-2-2: material of defined flammability (horizontal burning test) (see 7.3.2); Material 61249-2-2-3: material of defined flammability (vertical burning test) (see 7.3.3). These grades of material cover one of two flammability requirements, designated as FV0
27、 or FV1, and shown in Table 9. 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 t
28、he 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 60194:1999, Printed board design, manufacture and assembly Terms and definitions IEC 61189-2:1997, Test
29、 methods for electrical materials, printed boards and other interconnection structures and assemblies Part 2: Test method for materials for inter-connection structures IEC 61249-5-1:1995, Materials for interconnection structures Part 5: Sectional specification set for conductive foils and films with
30、 and without coatings Section 1: Copper foils (for the 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 manage
31、ment systems Specification with guidance for use 3 Materials and construction The sheet consists of an insulating base with metal foil bonded to one or both sides. Refer to IEC 60194 for terms and definitions. EN 61249-2-2:2005 6 3.1 Resin system Phenolic resin, modified or unmodified. 3.2 Reinforce
32、ment Cellulose paper (under consideration and to be defined in a future part of IEC 61249). 3.3 Metal foil Copper foil as specified in IEC 61249-5-1. The preferred foils are Type A (electro-deposited copper) of standard ductility. 4 Internal marking Each sheet should bear a manufacturers identificat
33、ion mark that is as follows: a) in black, or some other colour not to be confused with red, for material 61249-2-2-1 and in red for materials 61249-2-2-2 and 61249-2-2-3; b) repeated at intervals so that no part of the sheet is further than 75 mm from the furthest point of the mark; c) printed so as
34、 to indicate the machine direction of filling material; if letters or numbers are used, these shall be upright in the machine direction. Examples: 5 Electrical properties The requirements for the electrical properties are shown in Table 1. Table 1 Electrical properties Property Test method (IEC 6118
35、9-2) Requirements Resistance of foil 2E121 As specified in IEC 61249-5-1 Surface resistance after damp heat while in the humidity chamber (optional) 2E03 1 000 M Surface resistance after damp heat and recovery 2E03 10 000 M Volume resistivity after damp heat while in the 2E04 100 Mm 1Under considera
36、tion. 7 EN 61249-2-2:2005 humidity chamber (optional) Volume resistivity after damp heat and recovery 2E04 1 000 Mm 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 than 1,6 Relative permittivity aft
37、er damp heat and recovery 2E10 5,5 Dissipation factor after damp heat and recovery 2E10 0,5 Surface resistance at 100 C 2E03 100 M Volume resistivity at 100 C2E04 100 Mm 6 Non-electrical properties of the copper-clad laminate sheet 6.1 Appearance of the copper-clad sheet The copper-clad face shall b
38、e substantially free from defects that may have an impact on the materials fitness for use for the intended purpose. For the following specific defects, the requirements given shall apply when inspection is made in accordance with test method 2M182of IEC 61189-2. 6.1.1 Indentations (pits and dents)
39、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 any 300 mm 300 mm area shall be calculated
40、 to determine the indentation class. 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 user and supplier The desired class
41、of indentations shall be specified in the purchase order. Indentation Class A applies unless otherwise specified. 6.1.2 Wrinkles There shall be no wrinkles on 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, ar
42、e not permitted. EN 61249-2-2:2005 8 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 length of 100 mm for a 300
43、 mm x 300 mm area. 6.1.4 Raised areas Raised spots are usually impressions caused by defects in the press plates during manufacture but may also be caused by blisters or inclusions of foreign particles under the foil. Raised areas caused by impressions of defects in the press plates are permitted to
44、 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 waviness Not specified. 6
45、.2 Appearance of the unclad face The unclad face of single-sided 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, release film or release foil used. Varia
46、tions of gloss due to impact of pressure of gases released during the curing are permitted. 6.3 Laminate thickness, including copper foil When the copper-clad laminate is tested in accordance with test method 2D01 of IEC 61189-2, the thickness including the copper foil shall not depart from the nomi
47、nal thickness by more than the appropriate value shown in Table 2. The coarse tolerances shall apply unless the fine tolerances are ordered. Table 2 Nominal thickness and tolerance of metal-clad laminate Tolerance mm Nominal thickness mm Coarse Close 0,8 1,0 1,2 1,5 1,6 2,0 2,4 3,2 0,15 0,17 0,18 0,
48、20 0,20 0,23 0,25 0,30 0,09 0,11 0,12 0,14 0,14 0,15 0,18 0,20 NOTE For thicknesses not included in this table, the nearest greater tolerance applies. The thicknesses and tolerances do not apply to the outer 25 mm of the trimmed sheet or the panel as manufactured and delivered by the manufacturer. A
49、t least 90 % 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 than 125 % of the specified tolerance. 9 EN 61249-2-2:2005 6.4 Bow and twist When the copper-clad laminate is tested in accordance with test method 2M01 of IEC 61189-2, the bow and twist shall not exceed the values given in Table 3. Table 3 B
