IPC-TM-650 EN 2022 试验方法1.pdf - 第352页
Figure 1 Figure 2 IPC-TM-650 Number Subject Date Revision Page 2 of 3
Table 1
Glass Thickness Number of Plies (stack-up)
Up to 0.0025 in. (i.e., style
104, 106, 108, etc.)
18-20
*Greater than 0.0025 in (i.e.,
style 112, 113, 116, etc.)
10
Page 1 of 3
Figure 1
Figure 2
IPC-TM-650
Number
Subject Date
Revision
Page 2 of 3
Figure 2 Slump test stencil, IPC-A-20
Spacing
Spacing
Pad Size:
0.33 x 2.03mm
—18 identical pads per row
—Same spacings each row
Spacing
Spacing
Pad Size: 0.20 x 2.03 mm
—16 identical pads per row
—Same spacings each row
IPC-TM-650
Number Subject
Date
Revision
Page 3 of 3