ASTM D2861-87(2004)

Standard Test Methods for Flexible Composites of Copper Foil with Dielectric Film or Treated Fabrics

SIGNIFICANCE AND USE
The electrical and mechanical characteristics of circuits produced from flexible composites of copper foil with dielectric materials will to a large extent depend on the properties of the dielectric portion of the composite. Measurement of these properties is essential for predicting performance of the circuit.
SCOPE
1.1 These test methods cover procedures for testing flexible materials consisting of copper foil combined with either dielectric film or with treated or impregnated fabric to form flexible composites used in the manufacture of flexible or multilayer circuitry, or both.
1.2 The procedures appear as follows:ASTMReferenceProcedureSectionMethodConditioningFlex Life of the CompositePeel Strength of the CompositeSpecimen Preparation  D 1825Strain Relief Due to Etching Testing of the Dielectric Portion ofthe CompositeD 1825,D 2305,D 902
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 26-Feb-1987
• ICS: 77.150.30 - Copper products
• Technical Committee: D09 - Electrical and Electronic Insulating Materials
• Drafting Committee: D09.07 - Electrical Insulating Materials

Relations

• Replaces: ASTM D2861-87(1998) - Standard Test Methods for Flexible Composites of Copper Foil with Dielectric Film or Treated Fabrics
• Effective Date: 27-Feb-1987
• Replaced By: ASTM D2861-87(2009) - Standard Test Methods for Flexible Composites of Copper Foil with Dielectric Film or Treated Fabrics
• Effective Date: 01-Oct-2009

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information.
An American National Standard
Designation:D2861–87(Reapproved 2004)
Standard Test Methods for
Flexible Composites of Copper Foil with Dielectric Film or
1
Treated Fabrics
This standard is issued under the fixed designation D2861; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D1825 Practice for Etching and Cleaning Copper-Clad
Electrical Insulating Materials and Thermosetting Lami-
1.1 These test methods cover procedures for testing flexible
nates for Electrical Testing
materials consisting of copper foil combined with either
D2305 Test Methods for Polymeric Films Used for Electri-
dielectric film or with treated or impregnated fabric to form
cal Insulation
flexible composites used in the manufacture of flexible or
D6054 Practice for Conditioning Electrical Insulating Ma-
multilayer circuitry, or both.
terials for Testing
1.2 The procedures appear as follows:
ASTM
3. Terminology
Reference
Procedure Section Method
3.1 Definitions: For definitions of terms used in this stan-
Conditioning 5
dard, refer to Terminology D1711.
Flex Life of the Composite 20-25
Peel Strength of the Composite 11-19
4. Selection of Test Specimens
Specimen Preparation 6 D1825
Strain Relief Due to Etching 26-32
4.1 Select specimens for test from portions of material that
Testing of the Dielectric Portion of
are free of obvious defects, unless the purpose of the test is to
the Composite 7-10 D1825,
D2305,
evaluate these defects.
D902
5. Conditioning
1.3 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are for 5.1 Unless otherwise specified, conduct all conditioning and
information only. testing in the standard laboratory atmosphere specified in
1.4 This standard does not purport to address all of the Practice D6054. Condition specimens at least 18 h before
testing.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6. Specimen Preparation
priate safety and health practices and determine the applica-
6.1 Prepare specimens by etching without scrubbing, using
bility of regulatory limitations prior to use.
Practice D1825. The etching reagents described in Practice
2. Referenced Documents
D1825 may be incompatible with some composite materials.
2
2.1 ASTM Standards: The use of other reagents should be noted in the report for the
test involved.
D902 Test Methods for Flexible Resin-Coated Glass Fab-
rics and Glass Fabric Tapes Used for Electrical Insulation
TESTING OF THE DIELECTRIC PORTION OF THE
D1711 Terminology Relating to Electrical Insulation
COMPOSITE
1
7. Significance and Use
These test methods are under the jurisdiction of ASTM Committee D09 on
Electrical and Electronic Insulating Materials and are the direct responsibility of
7.1 The electrical and mechanical characteristics of circuits
Subcommittee D09.07 on Flexible and Rigid Insulating Materials.
produced from flexible composites of copper foil with dielec-
Current edition approved Feb. 27, 1987. Published April 1987. Originally
approved in 1970. Last previous edition approved in 1987 as D2861 – 82. DOI: tric materials will to a large extent depend on the properties of
10.1520/D2861-87R04.
the dielectric portion of the composite. Measurement of these
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
properties is essential for predicting performance of the circuit.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D2861–87 (2004)
8. Test Specimen 12. Apparatus
8.1 Take specimens as required from a sample that has been 12.1 Force-Measuring Instrument—Astrain gage, dial-type
etched free of copper foil in accordance with Section 6. Take
force meter, or similar instrument sensitive to 0.05 lbf (0.2 N).
the thickness from the material that remains after etching.
12.2 Chart Recorder (optional)—recording instrument ca-
pable of converting the force measured in 12.1 to a graphical
9. Procedure
record.
9.1 If the dielectric portion of the composite is a film, use
12.3 Peeling Mechanism—A device capable of peeling the
the procedures described in Test Methods D2305. copper from the dielectric at an angle of 90° to the specimen at
9.2 If the dielectric portion of the composite is a treated
a rate of 2 6 0.1 in. (50 6 3 mm)/min.
fabric, use
...