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Superseded

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BS EN 61249-2-42 - MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES - PART 2-42: REINFORCED BASE MATERIALS, CLAD AND UNCLAD - BROAMINATED EPOXIDE NON-WOVEN/WOVEN E-GLASS REINFORCED LAMINATED SHEETS OF DEFINED FLAMMABILITY (VERTICAL BURNING TEST), COPPER-CLAD FOR LEAD-FREE ASSEMBLY

Available format(s)

Hardcopy , PDF

Superseded date

30-06-2010

Language(s)

English

Publisher

British Standards Institution

1 Scope
2 Normative references
3 Materials and construction
   3.1 Resin system
   3.2 Metal foil
   3.3 Reinforcement
4 Internal marking
5 Electrical properties
6 Non-electrical properties of the copper-clad laminate
   6.1 Appearance of the copper-clad sheet
        6.1.1 Indentations (pits and dents)
        6.1.2 Wrinkles
        6.1.3 Scratches
        6.1.4 Raised areas
        6.1.5 Surface waviness
   6.2 Appearance of the unclad face
   6.3 Laminate thickness
   6.4 Bow and twist
   6.5 Properties related to the copper foil bond
   6.6 Punching and machining
   6.7 Dimensional stability
   6.8 Sheet sizes
        6.8.1 Typical sheet sizes
        6.8.2 Tolerances for sheet sizes
   6.9 Cut panels
        6.9.1 Cut panel sizes
        6.9.2 Size tolerances for cut panels
        6.9.3 Rectangularity of cut panels
7 Non-electrical properties of the base material after
   complete removal copper foil
   7.1 Appearance of the dielectric base material
   7.2 Flexural strength
   7.3 Flammability
   7.4 Water absorption
   7.5 Measling
   7.6 Glass transition temperature and cure factor
   7.7 Decomposition temperature
   7.8 Time to delamination(TMA)
8 Quality assurance
   8.1 Quality system
   8.2 Responsibility for inspection
   8.3 Qualification inspection
   8.4 Quality conformance inspection
   8.5 Certificate of conformance
   8.6 Safety data sheet
9 Packaging and marking
10 Ordering information
Annex A (informative) - Engineering information
   A.1 General
   A.2 Chemical properties
   A.3 Electrical properties
   A.4 Flammability properties
   A.5 Mechanical properties
   A.6 Physical properties
   A.7 Thermal properties
Annex B (informative) - Common laminate constructions
Annex C (informative) - Guideline for qualification and
        conformance inspection
Bibliography

BS EN 61249-2-42

Committee	EPL/501
DocumentType	Draft
Pages	24
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS EN 61249-2-42:2010

ISO 11014-1:1994	Safety data sheet for chemical products Part 1: Content and order of sections
IEC 61249-5-1:1995	Materials for interconnection structures - Part 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 14001:2015	Environmental management systems — Requirements with guidance for use
IEC 60194:2015	Printed board design, manufacture and assembly - Terms and definitions
ISO 9000:2015	Quality management systems — Fundamentals and vocabulary
IEC 61189-2:2006	Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 2: Test methods for materials for interconnection structures