EN 61249-4-1:2008
Current
The latest, up-to-date edition.
Materials for printed boards and other interconnecting structures - Part 4-1: Sectional specification set for prepreg materials, unclad (for the manufacture of multilayer boards) - Epoxide woven E-glass prepreg of defined flammability
23-05-2008
FOREWORD
1 Scope
2 Normative references
3 Materials and construction
3.1 Reinforcement
3.2 Epoxide resin
4 Properties
4.1 Properties related to the appearance of the prepreg
4.1.1 Dewetted areas (fish eyes)
4.1.2 Broken filaments
4.1.3 Distortion
4.1.4 Creases
4.1.5 Edge conditions
4.2 Properties related to B stage prepreg
4.2.1 Resin content
4.2.2 Treated weight
4.2.3 Resin flow
4.2.4 Scaled flow thickness
4.2.5 Melting viscosity
4.2.6 Gel time
4.2.7 Volatile content
4.3 Properties of prepregs after curing to C stage
4.3.1 Electric strength
4.3.2 Flammability
4.3.3 Relative permittivity and dissipation factor
4.3.4 Cured thickness
5 Delivery form
5.1 Rolls
5.2 Sheets
5.3 Cut panels
6 Quality assurance
6.1 Quality system
6.2 Responsibility for inspection
6.3 Qualification inspection
6.4 Quality conformance inspection
6.5 Certificate of conformance
6.6 Safety data sheet
7 Packaging and marking
8 Shelf life
9 Ordering information
Annex ZA (normative) - Normative references to international
publications with their corresponding
European publications
Bibliography
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