IPC-TM-650 EN 2022 试验方法.pdf - 第408页

Figure 14 Mirrored Dye Indication Following Pull – Board Side Figure 15 Mirrored Dye Indication Following Pull – Part Side Figure 16 Examples of Board Showing Laminate Fractures (Pad Cratering) Note the faint (pink stain…

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Figure 10 Example of Pull Method to Remove the BGA
From the Board
Note: These photographs are for reference only and should not be
construed as implying that a measurement is being made in accord
with this method.
Figure 11 Example of a Pull Tester Stage and Clamps
Note: These photographs are for reference only and should not be
construed as implying that a measurement is being made in accord
with this method.
Figure 12 Typical Pull-Test Fixture With Stage Clamps
Note: These photographs are for reference only and should not be
construed as implying that a measurement is being made in accord
with this method.
Figure 13 Example Showing Ball Grid Array (BGA)/
Part (Top) and Remaining Board (Bottom)
IPC-TM-650
Number
2.4.53
Subject
Dye and Pull Test Method (Formerly Known as Dye and Pry)
Date
8/2017
Revision
Page6of11
Figure 14 Mirrored Dye Indication Following Pull –
Board Side
Figure 15 Mirrored Dye Indication Following Pull –
Part Side
Figure 16 Examples of Board Showing Laminate
Fractures (Pad Cratering)
Note the faint (pink stain) red dye indication.
IPC-TM-650
Number
2.4.53
Subject
Dye and Pull Test Method (Formerly Known as Dye and Pry)
Date
8/2017
Revision
Page7of11
Figure 17 Example of Separation Surfaces After
Component Removal
1. Board side
2. Part side
12
Figure 18 Examples of Head on Pillow (HoP) Failures
A. Optical; IC carrier side on top and board side on bottom
B. X-ray image
C. Post dye and pull; IC carrier side
D. Post dye and pull; board side
A
B
C
D
IPC-2-4-53-19
Figure 19 Example of Dye and Pull Location Type
1. Type 1X
2. Type 2X
3. Type 3X
4. Type 4X
5. Type 5X
6. BGA substrate
7. Copper pad on BGA
8. BGA solder sphere
9. Copper pad on board
10. Board laminate
1
2
5
3
6
7
9
8
10
4
IPC-TM-650
Number
2.4.53
Subject
Dye and Pull Test Method (Formerly Known as Dye and Pry)
Date
8/2017
Revision
Page8of11