ASTM F219-96(2002)

Standard Test Methods of Testing Fine Round and Flat Wire for Electron Devices and Lamps

ABSTRACT
These test methods cover the testing of fine wire, flat or round, approximately 0.010 in. (0.25 mm) and smaller in diameter or thickness, used in electronic devices and lamps. Chemical analysis of the material shall be made in accordance with the requirements prescribed. The procedures in determining the out-of-roundness, edgewise curvature of ribbon, and straightness of straightened round wire are presented in details. Tension test and electrical resistivity test shall be performed to meet the requirements prescribed.
SCOPE
1.1 These test methods cover the testing of fine wire, flat or round, approximately 0.010 in. (0.25 mm) and smaller in diameter or thickness, used in electronic devices and lamps.  
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.  
1.3  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: 09-Dec-1996
• ICS: 29.060.10 - Wires
• Technical Committee: F01 - Electronics
• Drafting Committee: F01.03 - Metallic Materials, Wire Bonding, and Flip Chip

Relations

• Replaces: ASTM F219-96 - Standard Test Methods of Testing Fine Round and Flat Wire for Electron Devices and Lamps
• Effective Date: 10-Dec-1996
• Replaced By: ASTM F219-96(2009) - Standard Test Methods of Testing Fine Round and Flat Wire for Electron Devices and Lamps
• Effective Date: 01-May-2009
• Referred By: ASTM F289-96(2019) - Standard Specification for Molybdenum Wire and Rod for Electronic Applications
• Effective Date: 10-Dec-1996
• Referred By: ASTM F288-96(2019) - Standard Specification for Tungsten Wire for Electron Devices and Lamps
• Effective Date: 10-Dec-1996
• Referred By: ASTM F73-96(2017) - Standard Specification for Tungsten-Rhenium Alloy Wire for Electron Devices and Lamps
• Effective Date: 10-Dec-1996
• Referred By: ASTM F72-21 - Standard Specification for Gold Wire for Semiconductor Lead Bonding (Withdrawn 2024)
• Effective Date: 10-Dec-1996
• Referred By: ASTM F487-13(2018) - Standard Specification for Fine Aluminum–1 % Silicon Wire for Semiconductor Lead-Bonding (Withdrawn 2024)
• Effective Date: 10-Dec-1996

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
Designation:F 219–96 (Reapproved 2002)
Standard Test Methods of Testing
Fine Round and Flat Wire for Electron Devices and Lamps
This standard is issued under the fixed designation F 219; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope distortion.Withtheexceptionsmentionedin3.2,thespecimens
shallbetakenfrompointsinthelengthofthewireseparatedby
1.1 These test methods cover the testing of fine wire, flat or
at least 1 ft (305 mm).
round, approximately 0.010 in. (0.25 mm) and smaller in
3.2 For the edgewise curvature test, straightness test, and
diameter or thickness, used in electronic devices and lamps.
tension tests the specimens shall be taken from points in the
1.2 The values stated in inch-pound units are to be regarded
length of the wire separated by at least 3 ft (0.9 m).
as the standard. The values given in parentheses are for
information only.
4. Chemical Analysis
1.3 This standard does not purport to address all of the
4.1 Incaseofdisagreementbetweenproducerandconsumer
safety concerns, if any, associated with its use. It is the
chemical analysis of the material shall be made in accordance
responsibility of whoever uses this standard to consult and
with the methods of the American Society for Testing and
establish appropriate safety and health practices and deter-
Materials for the respective materials when such methods of
mine the applicability of regulatory limitations prior to use.
analysis are available. When ASTM test methods are not
2. Referenced Documents available, the analytical procedures shall be agreed upon by the
producer and the consumer.
2.1 ASTM Standards:
B 63 Test Method for Resistivity of Metallically Conduct-
5. Dimensions
ing Resistance and Contact Materials
5.1 Procedure A for Round Wire—Determine the weight-
D 374 Test Methods for Thickness of Solid Electrical
size of round wire in accordance with Test Method F 205.
Insulation
5.2 ProcedureBforRoundWire—Asanalternativemethod,
F 16 Test Methods for Measuring Diameter or Thickness of
the diameter of wire over 0.005 in. (0.13 mm) may be
Wire and Ribbon for Electronic Devices and Lamps
determined in accordance with Test Methods D 374.
F 205 Test Method for Measuring Diameter of FineWire by
4 5.3 Procedure for Flat Wire:
Weighing
5.3.1 Determine the dimensions of flat wire in accordance
F 289 Specification for Molybdenum Wire and Rod for
4 with 5.1 in conjunction with width as measured in accordance
Electronic Applications
with 5.2, or if agreed upon by the manufacturer and the
3. Test Specimens purchaser, any dimension exceeding 0.005 in. may be deter-
mined in accordance with 5.2 alone.
3.1 The number of spools per shipment to be checked shall
5.3.2 In determining the width of flat wire, form a flatwise
be agreed upon by the producer and consumer. Three test
loop loosely with the ends held between the fingers. The minor
specimens from each spool to be tested shall be taken for the
1 3
axis of the loop shall be ⁄2 to ⁄4 of the diameter of the
purpose of each of the tests covered by these methods, except
micrometer jaws. Measure the width of the ribbon with the
Section 4, where one specimen per shipment shall be submit-
curve loop perpendicular to the micrometer jaws.Take care not
ted. These specimens shall be selected sufficiently far from
to distort the ribbon or bend it out of the correct plane during
eitherendofthespoolofwiretobefreefromkinks,bends,and
measurement.
5.4 In case of disagreement between producer and con-
These test methods are under the jurisdiction of ASTM Committee F01 on
sumer, Test Methods F 16 shall be used as the referee method.
Electronics and are the direct responsibility of Subcommittee F01.03 on Metallic
5.5 Report—The report shall include the average weight of
Materials.
wire or ribbon in mg/200 mm to three significant figures. The
Current edition approved Dec. 10, 1996. Published February 1997. Originally
published as F 219 – 47. Last previous edition F 219 – 79 (1991).
average measurements for diameter, width, or thickness shall
Annual Book of ASTM Standards, Vol 03.04.
be reported to the nearest 0.0001 in. (0.002 mm).
Annual Book of ASTM Standards, Vol 10.01.
Annual Book of ASTM Standards, Vol 10.04.
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F 219
6. Out-of-Roundness 9.2 Procedure—Determine the tensile strength, yield
strength, and elongation at room temperature. The gage length
6.1 Procedure—Measure out-of-roundness on round wire
of the specimen shall be 10 in. (254 mm). The initial load
over 0.005 in. (0.13 mm) in diameter in accordance with
applied to the specimen before making the test shall be
Sections 3 and 4 of Test Methods D 374. For wire 0.005 in. or
sufficient to keep the wire straight. The rate of traverse shall be
less in diameter the same method shall apply except a bench
1 in./min (25.4 mm/min).The yield strength shall be defined as
type micrometer reading to 0.0001 in. (0.002 mm) shall be
the stress at which the specimen exhibits an elongation of 1 %.
used. Make the measurements by exploring a plane of cross
If the specimen breaks within 0.5 in. (12.7 mm) of the clamps,
section of the test specimen to determine both minimum and
repeat the test.
maximum values of diameter at the cross section. Take care to
9.3 The report shall include the averages of at least three
have the specimen straight so that its normal curvature will not
determinations each of the tensile strength and yield strength
influence readings.
expressedingf/(mg/200mm)orinkgf/cm ,andthepercentage
6.2 Calculation—Calculate out-of-roundness as foll
...