1、BRITISH STANDARDBS EN 61249-2-23: 2005Materials for printed boards and other interconnecting structures Part 2-23: Reinforced base materials, clad and unclad Non-halogenated phenolic cellulose paper reinforced laminated sheets, economic grade, copper-clad The European Standard EN 61249-2-23:2005 has
2、 the status of a British StandardICS 31.180g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 61249-2-23:2005This British Standard was published
3、under the authority of the Standards Policy and Strategy Committee on 25 August 2005 BSI 25 August 2005ISBN 0 580 45927 6National forewordThis British Standard is the official English language version of EN 61249-2-23:2005. It is identical with IEC 61249-2-23:2005.The UK participation in its prepara
4、tion 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 Standards which implement international or European publica
5、tions 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 publication does not purport to include all the necess
6、ary 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 international/European committee any enquiries on the interpr
7、etation, 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, pages 2 to 17 and a back cover.The BSI copyright no
8、tice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARD EN 61249-2-23 NORME EUROPENNE EUROPISCHE NORM March 2005 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisati
9、on Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels ICS 31.180 English version Materials for printed boards and other interconnecting structures Part 2-23: Reinforced base materials, clad and unclad Non-halogenated phenolic
10、cellulose paper reinforced laminated sheets, economic grade, copper-clad (IEC 61249-2-23:2005) Matriaux pour circuits imprims et autres structures dinterconnexion Partie 2-23: Matriaux de base renforcs, plaqus et non plaqus Feuilles stratifies renforces de papier cellulose phnolique non halogn, de q
11、ualit conomique, plaques cuivre (CEI 61249-2-23:2005) Materialien fr Leiterplatten und andere Verbindungsstrukturen Teil 2-23: Kaschierte und unkaschierte verstrkte Basismaterialien Kupferkaschierte halogenfreie Phenolharz-Hartpapiertafeln wirtschaftlicher Qualitt (IEC 61249-2-23:2005) This European
12、 Standard was approved by CENELEC on 2005-02-01. 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 co
13、ncerning 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 under the responsibility of a CENELEC member in
14、to 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, La
15、tvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61249-2-23:2005 E EN 61249-2-23:200
16、5 2 Foreword The text of document 91/495/FDIS, future edition 1 of IEC 61249-2-23, prepared by IEC TC 91, Electronics assembly technology, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61249-2-23 on 2005-02-01. The following dates were fixed: latest date by which t
17、he EN 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 tex
18、t of the International Standard IEC 61249-2-23:2005 was approved by CENELEC as a European Standard without any modification. _ 3 EN 61249-2-23:2005 CONTENTS 1 Scope 5 2 Normative references .5 3 Materials and construction 6 3.1 Resin system.6 3.2 Reinforcement .6 3.3 Metal foil .6 4 Internal marking
19、 .6 5 Electrical properties7 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.9 6.3 Laminate thickness, including copper foil .9 6.4 Bow and twist 9 6.5 Properties related to the copper foil bond .10 6.6 Pun
20、ching and machining11 6.7 Dimensional stability11 6.8 Sheet sizes .11 6.9 Rectangularity of cut panels.11 7 Non-electrical properties of the base material after complete removal of the copper foil .12 7.1 Appearance of the dielectric base material .12 7.2 Flexural strength .12 7.3 Flammability12 7.4
21、 Water absorption .12 7.5 Measling .13 7.6 Glass transition temperature and cure factor 13 8 Quality assurance.13 8.1 Quality system.13 8.2 Responsibility for inspection 13 8.3 Qualification inspection13 8.4 Quality conformance inspection .13 8.5 Certificate of conformance .14 8.6 Safety data sheet
22、14 9 Packaging and marking 14 10 Ordering information.14 Annex A (informative) Engineering information .15 A.1 Chemical properties.15 A.2 Electrical properties.15 A.3 Flammability properties15 A.4 Mechanical properties15 A.5 Physical properties 16 A.6 Thermal properties 16 Annex ZA (normative) Norma
23、tive references to international publications with their corresponding European publications17 Table 1 Electrical properties.7 EN 61249-2-23:2005 4 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 Size tolerance
24、for cut panels11 Table 6 Rectangularity of cut panels.11 Table 7 Flexural strength .12 Table 8 Flammability, vertical burning test12 Table 9 Water absorption .13 5 EN 61249-2-23:2005 MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES Part 2-23: Reinforced base materials, clad and uncl
25、ad Non-halogenated phenolic cellulose paper reinforced laminate sheets, economic grade, copper clad 1 Scope This part of IEC 61249 gives requirements for properties of non-halogenated phenolic cellulose paper copper-clad laminated sheets, economic grade, in thicknesses of 0,8 mm up to 3,2 mm. This s
26、tandard covers materials with different requirements on flammability and are designated according to the following: Material 61249-2-23-1: general purpose grade, requirement on flammability not specified; Material 61249-2-23-2: materials of defined flammability (vertical burning test). These grades
27、of material provide for one of two flammability requirements and designated as FV0 or FV1 in Table 8. Some property requirements may have several classes of performance. The class desired should be specified on the purchase order, otherwise the default class of material may be supplied. 2 Normative
28、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 60194:1999, Printed board design,
29、manufacture and assembly Terms and definitions IEC 61189-2:1997, Test methods for electrical materials, printed boards and other inter-connection structures and assemblies Part 2: Test methods for materials for interconnection structures IEC 61249-5-1:1995, Materials for interconnection structures P
30、art 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 9000:2000, Quality management systems Fundamentals and vocabulary ISO 11014-1:1994, Safety data sheet for chemical products Part
31、 1: Content and order of sections ISO 14001:1996, Environmental management systems Specification with guidance for use EN 61249-2-23:2005 6 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.
32、 3.1 Resin system Non-halogenated phenolic resin. The maximum total halogens contained in the resin plus reinforcement matrix is 1 500 106with a maximum chlorine of 900 106and maximum bromine of 900 106. 3.2 Reinforcement Cellulose paper (under consideration and to be defined in a future part of IEC
33、 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 identification mark that is as follows: a) in black or some other colour not to be confused wi
34、th red for material 61249-2-23-1 and in red for material 61249-2-23-2; 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 to indicate the machine direction of filling material. If letters or numbers are used, these shall
35、be upright or at right angles in the machine direction. Examples: Machinedirection 7 EN 61249-2-23:2005 5 Electrical properties The requirements for the electrical properties are shown in Table 1. Table 1 Electrical properties Property Test method (IEC 61189-2) Requirements Resistance of foil 2E121A
36、s specified in IEC 61249-5-1 Surface resistance after damp heat while in the humidity chamber (optional) 2E03 100 M Surface resistance after damp heat and recovery 2E03 1 000 M Volume resistivity after damp heat while in the humidity chamber (optional) 2E04 10 Mm Volume resistivity after damp heat a
37、nd recovery 2E04 100 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 1,8 Relative permittivity after damp heat and recovery at 1MHz 2E10 15 M Volume resistivity at 100 C 2E04 10 Mm 6 Non-ele
38、ctrical properties of the copper-clad laminate sheet 6.1 Appearance of the copper-clad sheet The copper-clad face shall be 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 sha
39、ll apply when inspection is made in accordance with IEC 61189-2 Method 2M182. 1Under consideration. EN 61249-2-23:2005 8 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
40、 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 x 300 mm area shall be calculated to determine the indentation class. Indentation class A 29 maximum total point count Indentation class B 17 maximum total point count Indent
41、ation 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 of indentations shall be specified in the purchase order. Indentation Class A applies unless otherwise specified. 6.1.2 Wrinkles There shall
42、 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, 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 o
43、r 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 x 300 mm area. 6.1.4 Raised areas Raised areas are usually impressions caused by defects in the press plates during manu-facture but may also be caused by b
44、listers or inclusions of foreign particles under the foil. Raised areas caused by impressions of defects in the press 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
45、 and maximum length 15 mm; Indentation class D material: maximum height 5 m and maximum length 15 mm. 9 EN 61249-2-23:2005 6.1.5 Surface waviness Not specified. 6.2 Appearance of the unclad face The unclad face of single-sided clad sheets shall have the natural appearance resulting from the curing p
46、rocess. 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 impact of pressure of gases released during the curing are permitted. 6.3 Laminate thickness, including copper foil
47、 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 nominal thickness by more than the appropriate value shown in Table 2. The coarse tolerances shall apply unless the fine tolerances are ord
48、ered. Table 2 Nominal thickness and tolerance of metal-clad laminate Tolerance mm Nominal thickness mm Coarse Fine 0,8 1,0 1,2 1,5 1,6 2,0 2,4 3,2 0,15 0,17 0,18 0,20 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 toler
49、ance applies. The thicknesses and tolerances do not apply to the outer 25 mm of the trimmed sheet or the outer 13 mm of the cut-to-size panel as manufactured and delivered by the supplier. At 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. 6.4 Bow and twist When the copper-cla
