IPC-TM-650 EN 2022 试验方法1.pdf - 第294页

IP C- T-50 IPC-TM-650 Figure 1 Box BOW 2 1 With constraining for ce applied to both corners of the same edge. 1 & 2 deflection from surface plane. Figure 2 T wist B A x x x x C P oints A, B, C T ouching Base With con…

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IPC-T-50
IPC-TM-650
Figure 1 Box
BOW
2
1
With constraining force applied
to both corners of the same edge.
1 & 2 deflection from surface plane.
Figure 2 Twist
B
A
x
x
x
x
C
Points A, B, C
Touching Base
With constraining force
applied to one corner only.
Page 1 of 5
Figure 3 External Measurements
L
D
W
IPC-TM-650
Page 2 of 5