BS EN 61249-2-39:2013 BSI Standards Publication Materials for printed boards and other interconnecting structures Part 2-39: Reinforced base materials clad and unclad — High performance epoxide and non-epoxide, woven E-glass laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assembly BRITISH STANDARD BS EN 61249-2-39:2013 National foreword This British Standard is the UK implementation of EN 61249-2-39:2013 It is identical to IEC 61249-2-39:2012 The UK participation in its preparation was entrusted to Technical Committee EPL/501, Electronic assembly technology & Printed Electronics A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2013 Published by BSI Standards Limited 2013 ISBN 978 580 69353 ICS 31.180 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2013 Amendments issued since publication Date Text affected BS EN 61249-2-39:2013 EN 61249-2-39 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM March 2013 ICS 31.180 English version Materials for printed boards and other interconnecting structures Part 2-39: Reinforced base materials clad and unclad High performance epoxide and non-epoxide, woven E-glass laminate sheets of defined flammability (vertical burning test), copper-clad for leadfree assembly (IEC 61249-2-39:2012) Matériaux pour circuits imprimés et autres structures d'interconnexion Partie 2-39: Matériaux de base renforcés, plaqués et non plaqués Feuilles stratifiées en tissu de verre de type E époxyde et non époxyde haute performance, plaquées cuivre, d'inflammabilité définie (essai de combustion verticale), pour les assemblages sans plomb (CEI 61249-2-39:2012) Materialien für Leiterplatten und andere Verbindungsstrukturen Teil 2-39: Kaschierte und unkaschierte verstärkte Basismaterialien Kupferkaschierte mit E-Glasgewebe verstärkte Laminattafeln hochwertiger Qualität auf der Basis von Epoxidharz und Nicht-Epoxidharz mit definierter Brennbarkeit (Brennprüfung mit vertikaler Prüflingslage) für bleifreie Bestückungstechnik (IEC 61249-2-39:2012) This European Standard was approved by CENELEC on 2013-01-03 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 concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre has the same status as the official versions CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels © 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members Ref No EN 61249-2-39:2013 E BS EN 61249-2-39:2013 EN 61249-2-39:2013 Foreword The text of document 91/1052/FDIS, future edition of IEC 61249-2-39, prepared by IEC TC 91 "Electronics assembly technology" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61249-2-39:2013 The following dates are fixed: • • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement latest date by which the national standards conflicting with the document have to be withdrawn (dop) 2013-10-03 (dow) 2016-01-03 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights Endorsement notice The text of the International Standard IEC 61249-2-39:2012 was approved by CENELEC as a European Standard without any modification In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60194:2006 NOTE Harmonized as EN 60194:2006 (not modified) ISO 9000:2005 NOTE Harmonized as EN ISO 9000:2005 (not modified) ISO 14001:2004 NOTE Harmonized as EN ISO 14001:2004 (not modified) BS EN 61249-2-39:2013 EN 61249-2-39:2013 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies Publication Year Title IEC 61189-2 2006 Test methods for electrical materials, printed EN 61189-2 boards and other interconnection structures and assemblies Part 2: Test methods for materials for interconnection structures 2006 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 foils (for the manufacture of copper-clad base materials) EN 61249-5-1 1996 IEC/PAS 61249-6-3 2011 Specification for finished fabric woven from "E" glass for printed boards - - ISO 11014 Safety data sheet for chemical products Content and order of sections - - 2009 EN/HD Year BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 CONTENTS Scope Normative references Materials and construction 3.1 General 3.2 Resin system 3.3 Metal foil 3.4 Reinforcement Internal marking Electrical properties Non-electrical properties of the copper-clad laminate 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 Appearance of the copper-clad sheet 6.1.1 General 6.1.2 Indentations (pits and dents) 6.1.3 Wrinkles 6.1.4 Scratches 6.1.5 Raised areas 6.1.6 Surface waviness Appearance of the unclad face Laminate thickness Bow and twist 10 Properties related to the copper foil bond 10 Punching and machining 11 Dimensional stability 11 Sheet sizes 12 6.8.1 Typical sheet sizes 12 6.8.2 Tolerances for sheet sizes 12 6.9 Cut panels 12 6.9.1 Cut panel sizes 12 6.9.2 Size tolerances for cut panels 12 6.9.3 Rectangularity of cut panels 13 Non-electrical properties of the base material after complete removal of the copper foil 13 7.1 Appearance of the dielectric base material 13 7.2 Flexural strength 13 7.3 Flammability 14 7.4 Water absorption 15 7.5 Measling 15 7.6 Glass transition temperature and cure factor 15 7.7 Decomposition temperature 16 7.8 Thermal resistance 16 7.9 Z-axis expansion 16 Quality assurance 16 8.1 8.2 8.3 Quality system 16 Responsibility for inspection 16 Qualification inspection 16 BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 8.4 Quality conformance inspection 17 8.5 Certificate of conformance 17 8.6 Safety data sheet 17 Packaging and marking 17 10 Ordering information 17 Annex A (informative) Engineering information 19 Annex B (informative) Common laminate constructions 21 Annex C (informative) Guideline for qualification and conformance inspection 23 Bibliography 24 Table – Electrical properties Table – Indentations Table – Nominal thickness and tolerance of metal-clad laminate Table – Bow and twist requirements 10 Table – Pull-off and peel strength requirements 11 Table – Dimensional stability 12 Table – Size tolerances for cut panels 12 Table – Rectangularity of cut panels 13 Table – Flexural strength requirements 14 Table 10 – Flammability requirements 14 Table 11 – Water absorption requirements 15 Table 12 – Measling requirements 15 Table 13 – Glass transition temperature and cure factor requirements 15 Table 14 – Decomposition temperature requirements 16 Table 15 – Thermal resistance requirements 16 Table 16 – Z-axis expansion requirements 16 Table B.1 – Thickness 21 Table C.1 – Qualification and conformance testing 23 –6– BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES – Part 2-39: Reinforced base materials clad and unclad – High performance epoxide and non-epoxide, woven E-glass laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assembly Scope This part of IEC 61249 specifies requirements for properties of modified brominated epoxide woven E-glass laminated sheet of a thickness 0,05 mm up to 3,2 mm, of defined flammability (vertical burning test), copper-clad The glass transition temperature is defined to be 170 °C minimum Its flame resistance is defined in terms of the flammability requirements of 7.3 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 will be supplied Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies IEC 61189-2:2006, Test methods for electrical materials, printed boards and other interconnection structures and assemblies – Part 2: Test methods for materials and other 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 foils (for the manufacture of copper-clad base materials) IEC/PAS 61249-6-3:2011, boards ISO 11014:2009, 3.1 Specification for finished fabric woven from E-glass for printed Safety data sheet for chemical products – Content and order of sections Materials and construction General The sheet consists of an insulating base with metal-foil bonded to one side or both 3.2 Resin system A blend of majority di-functional, multifunctional epoxide and non-epoxide, woven E-glass laminate with a glass transition temperature of 170 °C minimum The flammability rating is achieved through the use of bromine reacted into the polymer Inorganic fillers may be used BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 –7– Contrast agents may be added to enhance processing such as automated optical inspection (AOI) The maximum total halogens contained in resin plus reinforcement matrix is 500 ppm with a maximum chlorine of 900 ppm and maximum bromine of 900 ppm Its flame resistance is defined in terms of the flammability requirements of 7.3 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 electrodeposited of defined ductility 3.4 Reinforcement Woven E-glass as specified in IEC/PAS 61249-6-3, woven E-glass fabric (for the manufacture of prepreg and copper clad materials) Internal marking Not specified Electrical properties The electrical property requirements are shown in Table Table – Electrical properties 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 ≥10 000 MΩ Surface resistance after damp heat and recovery 2E03 ≥50 000 MΩ Volume resistivity after damp heat while in the humidity chamber (optional) 2E04 ≥5 000 MΩm Volume resistivity after damp heat and recovery 2E04 ≥10 000 MΩm Relative permittivity after damp heat and recovery (1 MHz) 2E10 ≤5,4 Dissipation factor after damp heat and recovery (1 MHz) 2E10 ≤0,035 Electric strength (only for material thickness less than 0,5 mm) 2E11 ≥30 kV/mm Arc resistance 2E14 ≥60 s Dielectric breakdown (only for material thicknesses ≥0,5 mm) 2E15 ≥40 kV Surface resistance at 125 °C 2E07 ≥1 000 MΩ Volume resistivity at 125 °C 2E07 ≥1 000 MΩm Property BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 –8– Non-electrical properties of the copper-clad laminate 6.1 Appearance of the copper-clad sheet 6.1.1 General The copper-clad face shall be substantially free from defects that may have an impact on the material´s 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 6.1.2 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, see Table Table – Indentations Size mm Point value for each indentation 0,13 – 0,25 0,26 – 0,50 0,51 – 0,75 0,76 – 1,00 >1,00 30 The total point count for any 300 mm × 300 mm area shall be calculated to determine the class of the material Class A 29 maximum Class B 17 maximum Class C maximum Class D Class X To be agreed upon by user and supplier The required class of material shall be specified in the purchase order Class A applies unless otherwise specified 6.1.3 Wrinkles There shall be no wrinkles in the copper surface 6.1.4 Scratches Scratches deeper than 20 % of the nominal thickness of the foil thickness are not permitted Scratches with a depth less than % of the nominal thickness of the foil shall not be counted unless this depth is 10 µm or more Scratches with a depth between % 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 BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 – 12 – Table – Dimensional stability Property Test method IEC 61189-2 Class Requirement ppm 2X02 A ±300 B ±200 C ±100 X As agreed upon between user and supplier Dimensional stability 6.8 Sheet sizes 6.8.1 Typical sheet sizes Sheet sizes are matters of agreement between purchaser and supplier However, the recommended sizes are listed below: – 915 mm × 220 mm; – 065 mm × 155 mm; – 065 mm × 280 mm; – 000 mm × 000 mm; – 000 mm × 200 mm 6.8.2 Tolerances for sheet sizes The size of sheet delivered by the supplier shall not deviate by more than +20/−0 mm from the ordered size 6.9 6.9.1 Cut panels Cut panel sizes Cut panel sizes shall be, when delivered, in accordance with the purchaser’s specification 6.9.2 Size tolerances for cut panels For panels cut to size according to the purchaser’s specification, the following tolerances for length and width shall apply, as shown in Table Tolerances indicated as normal shall be in effect unless otherwise specified by in the purchasing specification Table – Size tolerances for cut panels Tolerance requirement ± mm Panel size NOTE mm Normal Close ≤300 2,0 0,5 >300 ≤ 600 2,0 0,8 >600 2,0 1,6 The specified tolerances include all deviations caused by cutting the panels BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 6.9.3 – 13 – Rectangularity of cut panels For panels cut to size according to the purchaser’s specification, the following requirements for rectangularity shall apply as shown in Table Tolerance indicated as normal shall be in effect unless otherwise specified in the purchasing specification Table – Rectangularity of cut panels Property Rectangularity of cut panels Test method IEC 61189-2 2M23 Requirement mm/m Normal Close ≤3 ≤2 Non-electrical properties of the base material after complete removal of the copper foil 7.1 Appearance of the dielectric base material The etched specimens shall be inspected to verify that no surface or subsurface imperfections of the dielectric material exceed those shown below The panels shall be inspected using an optical aid apparatus which provides a minimum magnification of 4X Referee inspection shall be conducted at 10X magnification Lighting conditions of inspection shall be appropriate to the material under inspection or as agreed upon between user and supplier Surface and subsurface imperfections (such as weave texture, resin starvation, voids, foreign inclusions) shall be acceptable provided that the imperfections meet the following: 7.2 • the reinforcement fibres are not cut or exposed; • the foreign inclusions are not conductive; • the imperfections not propagate as a result of thermal stress; • the foreign inclusions are translucent; • opaque foreign fibres are less than 15 mm in length and average no more than 1,0 per 300 mm ì 300 mm area; ã opaque foreign inclusions other than fibres shall not exceed 0,50 mm Opaque foreign inclusions less than 0,15 mm shall not be counted Opaque foreign inclusions between 0,50 mm and 0,15 mm shall average no more than two spots per 300 mm × 300 mm area; • voids (sealed voids or surface void) have a longest dimension less than 0,075 mm and there should not be more than three voids in a 3,5 mm diameter circle Flexural strength When the laminate is tested in accordance with test method 2M20 of IEC 61189-2, the flexural strength shall be as shown in Table – 14 – BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 Table – Flexural strength requirements Test method IEC 61189-2 Property Flexural strength: Requirement 2M20 Length direction ≥400 N/mm Cross-direction ≥300 N/mm (applicable to sheets ≥1,0 mm in thickness) Flexural strength: Length direction Not specified Elevated temperature (applicable to sheets≥1,0 mm in thickness) 7.3 Flammability When the laminate is tested in accordance with test method 2C08 (thickness ≥0,05 ≤ 0,3 mm) or method 2C06 (thickness >0,3 ≤ 3,2 mm) of IEC 61189-2 the flammability shall be as shown in Table 10 The performance labelled V-0 shall be in effect unless otherwise noted on the purchase order Table 10 – Flammability requirements Property Test method IEC 61189-2 Requirements Designation V-0 Flammability: Flaming combustion time after each application of the flame for each test specimen Total flaming combustion time for the 10 flame applications for each set of five specimens Glowing combustion time after the second removal of the test flame Flaming or glowing combustion up to the holding clamp Dripping flaming particles that ignite the tissue paper 2C06 ≤10 s ≤50 s ≤30 s None None BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 7.4 – 15 – Water absorption When the laminate is tested in accordance with test method 2N02 of IEC 61189-2, the maximum water absorption shall be as shown in Table 11 Table 11 – Water absorption requirements Property Test method IEC 61189-2 Thickness mm Requirement % 2N02 ≥0,05 < 0,20 ≤2,00 ≥0,20 < 0,30 ≤1,50 ≥0,30 < 0,40 ≤1,20 ≥0,40 < 0,50 ≤1,00 ≥0,50 < 0,60 ≤0,80 ≥0,60 < 0,80 ≤0,70 ≥0,80 < 1,00 ≤0,50 ≥1,00 < 1,20 ≤0,50 ≥1,20 < 1,60 ≤0,40 ≥1,60 < 2,00 ≤0,25 ≥2,00 < 2,40 ≤0,20 ≥2,40 < 3,20 ≤0,20 Water absorption 7.5 Measling When the laminate is tested in accordance with test method 2N01 of IEC 61189-2, the presence of measles allowed shall be as shown in Table 12 Table 12 – Measling requirements Property Measling Test method IEC 61189-2 2N01 Requirement No measling on three specimens If one out of three specimens fails, the test has to be repeated No measling on three specimens of the second test is permitted No blistering or delamination on any of the three specimens is permitted 7.6 Glass transition temperature and cure factor The requirements for glass transition temperature and cure factor are found in Table 13 Table 13 – Glass transition temperature and cure factor requirements Test method IEC 61189-2 Requirement Glass transition temperature 2M11 ≥170 °C minimum Cure factor 2M03 ≥0,96 Property – 16 – BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 7.7 Decomposition temperature The requirements for the decomposition temperature are stated in Table 14 Table 14 – Decomposition temperature requirements Test method Property IEC 61189-2 Decomposition temperature 7.8 2MXX Requirement ≥340 °C Thermal resistance The requirements for thermal resistance are stated in Table 15 Table 15 – Thermal resistance requirements 7.9 Property Test method IEC 61189-2 Requirement T260 2MXX ≥30 T288 ≥15 T300 ≥2 Z-axis expansion The requirements for Z-Axis expansion are stated in Table 16 Table 16 – Z-axis expansion requirements Property Z-axis Alpha (below Tg) Z-axis Alpha (above Tg) Z-axis % from 50 °C to 250 °C 8.1 Test method IEC 61189-2 Requirement 2MXX ≤60 ppm/°C ≤300 ppm/°C 3,0 % maximum Quality assurance Quality system The supplier shall operate a quality system, ISO 9000 or similar, to support quality conformance inspection The supplier shall operate a Management System for Environmental Control, ISO 14001 or similar, to support environmental considerations 8.2 Responsibility for inspection The supplier is responsible for all inspections of the manufactured material The purchaser or an appointed third party may audit this inspection 8.3 Qualification inspection Laminates furnished under this standard shall be qualified Qualification testing shall be performed to demonstrate the manufacturer’s ability to meet the requirements of this standard BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 – 17 – Qualification testing shall be conducted at a laboratory compliant with IEC laboratory requirements A list of the normal qualification tests can be found in Annex C The manufacturer shall retain a data file which supports that the materials meet this standard and shall be readily available for review upon request 8.4 Quality conformance inspection The supplier shall operate a quality plan to ensure product conformance to this standard Such a quality plan, when appropriate, should utilize statistical methods rather than lot by lot inspection It is the responsibility of the supplier, based on the quality plan, to determine the frequency of test to ensure conforming products In the absence of a quality plan or supporting data, the testing regime shall be as outlined in Annex C A combination of the following techniques may be used to show compliance with the requirements which can be used to reduce the frequency of testing The data supporting the reduction of testing frequency shall be available for review upon request 8.5 • In process parameter control • In process inspection • Periodic final inspection • Final lot inspection Certificate of conformance The supplier shall issue a certificate on request from the purchaser of conformance to this standard in electronic or paper format 8.6 Safety data sheet A safety data sheet in accordance with ISO 11014 shall be available for products manufactured and delivered in compliance witht this standard Packaging and marking Unless otherwise specified in the purchase order, laminate sheets shall be marked with the manufacturer's designation and lot number Marking shall remain legible during normal handling but be readily removable prior to use of the material Cut-to-size panels shall be identified by marking on the package Laminates comprised of asymmetric copper configurations shall be marked on the side of heaviest copper weight Sheets and panels shall be packaged in a manner which will provide adequate protection against corrosion, deterioration and physical damage during shipment and storage Packages shall be marked in a manner to clearly identify the contents 10 Ordering information Order shall include the following details: a) a reference to this specification b) type of material (see Clause and 7.3) c) size, thickness and copper cladding – 18 – d) class of indentations if other than “A” (see 6.1.2) e) class of raised areas if other than “A” (see 6.1.5) f) class of thickness tolerance if other than “fine” (see 6.3) g) class of dimensional stability if other than “A” (see 6.7) h) class of panel size tolerance if other than “normal” (see 6.9.2) i) request for certification if applicable (see 8.5) BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 – 19 – Annex A (informative) Engineering information A.1 General Information in this annex does not detail material property requirements The information is intended as a guideline for design and engineering purposes Users of this standard are encouraged to supply information to be included in the annex Materials according to this standard are expected to show the following typical data for the properties listed A.2 • Resistance against chemicals A.3 • Chemical properties Electrical properties Comparative tracking index A.4 Flammability properties • Needle flame test • Oxygen index A.5 (175 – 250) V 45 % Mechanical properties • Compressive strength (flatwise) 400 N/mm • Compressive strength (edgewise) 240 N/mm • Hardness at room temperature • Modulus of elasticity, flexural (warp) 1,9 × 10 N/mm • Modulus of elasticity, flexural (weft) 1,5 × 10 N/mm ã Modulus of elasticity, tensile (warp) 1,7 ì 10 N/mm • Modulus of elasticity, tensile (weft) 1,4 ì 10 N/mm ã Poissons ratio 0,12 – 0,16 • Shear strength 148 N/mm • Young’s modulus 200 (Rockwell M) 22 GPa – 20 – A.6 • Physical properties Density A.7 BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 1,85 g/cm Thermal properties • Coefficient of thermal expansion (Tg) 250 ppm/°C • Specific heat capacity • Thermal conductivity • UL temperature index (mechanical) 130 °C • UL temperature index (electrical) 130 °C • Maximum operating temperature (MOT) 130 °C 1,25 kJ/ (kg°C) 0,3 W/(m°C) BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 – 21 – Annex B (informative) Common laminate constructions Table B.1 gives the nominal thicknesses Table B.1 – Thickness Nominal thickness mm Common construction 0,075 080 0,080 × 106 0,100 × 106 0,100 113 0,100 116 0,125 116 0,125 165 0,125 × 080 0,15 157 0,15 165 0,16 500 0,18 628 0,18 500 0,20 × 113 0,20 × 116 0,20 628 0,25 × 116 0,25 × 165 0,26 080/2 116/1 080 0,30 × 157 0,30 × 165 0,30 116/2 112/2 116 0,30 080/7 628/1 080 0,36 × 628 0,37 113/7 628/2 113 0,38 500/1 080/1 500 0,41 628/1 080/7 628 0,43 116/7 628/2 116 0,45 × 500 0,46 628/2 112/7 628 0,48 628/2 116/7 628 0,51 628/2 165/7 628 0,51 080/2 × 628/1 080 0,54 × 628 – 22 – BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 Nominal thickness mm Common construction 0,61 × 628/1 080 0,61 116/2 × 628/2 116 0,66 628/2 × 165/7 628 0,67 628/2 × 500/7 628 0,74 × 628 0,74 113/3 × 628/2 113 0,80 × 628/1 080 0,90 × 628 1,08 × 628 1,46 × 628 NOTE Prepreg made from a specific style of glass used in different constructions may have different resin contents BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 – 23 – Annex C (informative) Guideline for qualification and conformance inspection See Table C.1 for qualification and conformance testing Table C.1 – Qualification and conformance testing Test method IEC-61189-2 Qualification testing Conformance testing Conformance frequency Peel strength after thermal shock 2M14 Yes Yes Lot Peel strength at 125 °C 2M15 Yes Yes Quarterly Peel strength after solvent vapour 2M06 Yes Yes Quarterly Peel strength after simulated plating 2M16 Yes No Pull off strength 2M05 Yes No Dimensional stability 2X02 Yes Yes Monthly Flexural strength 2M20 Yes Yes Annually Flammabilty 2C06 Yes Yes Monthly Thermal stress, unetched 2C05 Yes Yes Lot Solderabilty 2MXX Yes No Glass transition temperature 2M11 Yes Yes Monthly Cure factor 2M03 Yes Yes Monthly Permittivity at MHz, as received 2E10 Yes Yes Monthly Decomposition temperature 2MXX Yes Yes Annually Thermal resistance 2MXX Yes Yes Quarterly Z-axis expansion 2MXX Yes Yes Quarterly Dissipation factor at MHz, as received 2E10 Yes Yes Monthly Surface resistance after damp heat/recovery 2E03 Yes Yes Annually Volume resistance after damp heat/recovery 2E04 Yes Yes Annually Arc resistance 2E14 Yes Yes Annually Dielectric breakdown 2E15 Yes Yes Quarterly Electric strength 2E11 Yes Yes Quarterly Water absorption 2N02 Yes Yes Quarterly Bow and twist 2M01 Yes Yes Lot Surface waviness 2M12 Yes No See 7.1 Yes Yes Property Appearance of the dielectric base material NOTE Users of this standard are encouraged to supply information to be included in the annex Lot – 24 – BS EN 61249-2-39:2013 61249-2-39 © IEC:2012 Bibliography IEC 60194:2006, ISO 9000:2005, ISO 14001:2004, use Printed board design, manufacture and assembly – Terms and definitions Quality management systems – Fundamentals and vocabulary Environmental management systems – Requirements with guidance for This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT 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