4H4CEPM.pdf - 第35页
Page 25 301 CM Chip Data 4. Zigzag Arrangement / Missing Balls Setting Zigzag Arrangement Fig. 2 (A) and (B) show the cases that balls are arranged zigzag. On CM301, you can set a zigzag arrangement at a time. Missing Ba…
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Chip Data
3-5 BGA Chip
1. Ball Pitch Line / Ball Pitch Row
2. RowCount / LineCount
3. Ballsize / Ball size limit
4. Zigzag Arrangement / Missing Balls
Setting
1. Ball Pitch Line / Ball Pitch Row
These show the line and row pitches of balls.
2. RowCount / LineCount
These show the number of balls per row and the number of balls per line.
The positions of the balls of BGA and CSP are indicated by the combination of the line No. and row
No. When you look down at the balls side of BGA or CSP with the index corner placed at the lower
left, a horizontal alignment is called “Row” and a vertical one is called “Line”.
3. Ballsize / Ball size limit
Ballsize : This shows the diameter of the part shining on the screen.
Ball size limit : This shows the percentage that the recognition on the basis of ball’s diameter is
OK. (The range of OK is Ballsize ± Ball size limit.)
Row No.
Line No.
Fig. 1
Line
Row
1 2 3 4 5 6 7 8
1
2
3
4
5
6
7
8
444C-EPt-EdCl-019
4H4C-EPt-EdCl-009
4H4C-E-PMA01-A02-01
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301
CM
Chip Data
4. Zigzag Arrangement / Missing Balls Setting
Zigzag Arrangement
Fig. 2 (A) and (B) show the cases that balls are arranged zigzag.
On CM301, you can set a zigzag arrangement at a time.
Missing Balls Setting
To create the arrangement as shown at Fig. 3, create the arrangement as shown at Fig. 1 first. And
then, set the missing balls, because CM301 is programmed to judge the arrangement as shown at
Fig. 3 is created by removing four balls at the center from the arrangement as shown at Fig. 1.
Some types of BGA and CSP do not have balls at each corner as shown at Fig. 4. In this case also,
use the same steps as that for Fig. 3. You can set one group of missing balls at a time. Therefore,
when setting missing balls at four corners, you need to repeat setting them four times.
If a group of missing balls can not be enclosed by one square, you need to divide them into two or
more groups to set. For example, missing balls as shown at Fig. 5 (A) can be set as one group, but
those as shown at Fig. 5 (B) should be set as two groups.
Fig. 3 Fig. 4
444C-018E
Fig. 5 (A) Missing balls can be
enclosed by one square.
Fig. 5 (B) Two squares are required
to enclose missing balls.
Fig. 2 (A)
Ball exists at (1, 1).
Fig. 2(B)
Ball does not exist at (1, 1).
4H4C-E-PMA01-A02-01
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Chip Data
3-6 Editing BGA Chip
1. Click on the radio button of “BGA
ext”.
• BGA ext switch is displayed.
2. Click on BGA ext .
• [BGA Extension] window opens.
3. Enter the RowCount, LineCount,
Ballsize and Ball size limit.
• When balls are arranged zigzag or some balls
are missing, click on “Edit” on the menu bar
and set them.
4. Click on Close .
• [ChipLibrary] window opens.
444C-EPt-EdCl-019
4H4C-EPt-EdCl-010
4H4C-EPt-EdCl-009
4H4C-E-PMA01-A02-02