IPC-TM-650 EN 2022 试验方法1.pdf - 第231页
Note: Note: Note : Note: Figure 2 Minim um core thickn ess t COVERCOAT COVERCOAT M t t M t t = t M SUBSTRATE CONDUCTOR CONDUCTOR SUBSTRATE CONDUCTOR CONDUCTOR CONDUCTOR SUBSTRATE Figure 3 Fa tigue ductility fl ex tester I…
Note:
IPC-TM-650
IPC-TM-650
IPC-D-330
Note:
Figure 1 Test coupon configuration (recommended)
45327
104mm
[4.10]
NOTE 3
3.81mm [.150] (NOTE 1)
NOTES:
1. 0.76mm [.030"] Conductor width,
0.76mm [.030"] spacing
2. Pattern on opposite circuit
sides are identical
3. 5-digit lot number of
production lot.
2.54mm
[.100"] 12.7mm
[.050"] 12.7mm
[.050"]
88.9mm
[3.50"]
Page 1 of 3
Note:
Note:
Note:
Note:
Figure 2 Minimum core thickness
t
COVERCOAT
COVERCOAT
M
t
t
M
t
t = t
M
SUBSTRATE
CONDUCTOR
CONDUCTOR
SUBSTRATE
CONDUCTOR
CONDUCTOR
CONDUCTOR
SUBSTRATE
Figure 3 Fatigue ductility flex tester
IPC-TM-650
Number
Subject Date
Revision
Page 2 of 3
