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SEMI G75.2-069 8 © SEMI 1998 5 Figure 8 Relation of L eadframe and T able in Push-Down Method Figure 9 Probe Position over the Selected Inner Lead in Push-Down Method 6.2.4 Adjust the probe po sition until i t j ust touc…

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SEMI G75.2-0698 © SEMI 1998 4
6.1.3 Position the hook under the tape between the tie
bar and its neighboring inner lead as shown in Figure 6.
Similar leads and hook position shall be selected for
other types of leadframes.
6.1.4 Adjust the hook position until it just touches the
tape and initiate the tensile tester in the up-mode.
Record the strength to break the adhesion between the
lead and the tape.
6.1.5 Repeat the test for each leadframe in the
samples.
6.1.6 Calculation
6.1.6.1 Discard the maximum and minimum values
recorded, and average the remainder.
Figure 6
Measurement of Pull-Up Strength
6.2 Push-Down Procedure
6.2.1 Set the tensile tester in the down-mode, and
adjust the rate to 100 mm/minute.
6.2.2 Place the leadframe on the table as shown in
Figures 7 and 8.
6.2.3 Position the probe at Point A over the selected
inner lead as shown in Figure 9.
Figure 7
Measurement of Push-Down Strength
(Cross-Section)
SEMI G75.2-0698 © SEMI 19985
Figure 8
Relation of Leadframe and Table in Push-Down Method
Figure 9
Probe Position over the Selected Inner Lead in Push-Down Method
6.2.4 Adjust the probe position until it just touches the inner lead and initiate the tensile tester in the down-mode.
Record the strength to break the adhesion between the inner lead and the tape.
6.2.5 Repeat the test for each of the test positions noted in Section 6.2.4.
6.2.6 Repeat the tests for each leadframe in the sample.
6.3 Calculation
6.3.1 Discard the maximum and minimum values recorded and average the remainder.
SEMI G75.2-0698 © SEMI 1998 6
7 Related Documents
7.1 JIS Specification
1
JIS K 6854 — Testing Methods for Peel Strength of
Adhesives
NOTICE: These standards do not purport to address
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1 Japanese Standards Association, 1-24, Akasaka 4 Chome, Minato-ku, Tokyo, Japan
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