I.S. EN 1758:1998
Current
The latest, up-to-date edition.
COPPER AND COPPER ALLOYS - STRIP FOR LEAD FRAMES
Hardcopy , PDF
English
01-01-1998
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
1 Scope
2 Normative references
3 Definitions
3.1 strip
3.2 lead frame
4 Designations
4.1 Material
4.2 Material condition
4.3 Product
5 Ordering information
6 Requirements
6.1 Composition
6.2 Mechanical properties
6.3 Technological properties
6.4 Dimensions and tolerances
6.5 Form tolerances
6.6 Surface properties
6.7 Edge stress
6.8 Electrical conductivity
7 Sampling
7.1 General
7.2 Analysis
7.3 Mechanical and other tests
8 Test methods
8.1 Analysis
8.2 Tensile test
8.3 Hardness test
8.4 Bend test
8.5 Edge burr b
8.6 Coil set
8.7 Transverse cross bow q
8.8 Twist alpha
8.9 Roughness
8.10 Solderability
8.11 Edge stress
8.12 Electrical resistivity or conductivity test
8.13 Retests
8.14 Rounding of results
9 Declaration of conformity and inspection documentation
9.1 Declaration of conformity
9.2 Inspection documentation
10 Marking, packaging, labelling
Tables
Annex A (informative) Physical properties
Annex B (informative) Bibliography
Annex C (normative) Lead fatigue test
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