Vatech A9 PHT-30CSS, Technical Manual

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Page 144 of 244
▲ The trend of Left Cutting Pixel according to CPIO value
Step 2. Checking the reference of the end position from the beginning
If Step 1 is satisfied, check if the Left Cutting Pixel of the average projection at the
Beginning/Middle/End position satisfies the standard range below.
Exposure
section
Projection
range
Manufacturing operation
standards
Beginning 87 387 1 1 2 2 2 3 3
Middle 1524 1624 2 2 2 2 2 2 2
End 2820 3120 1 2 1 2 3 2 3
▲ Left Cutting Pixel Standard of Average Projection at Beginning/Middle/End Position
If not, perform the following tasks to satisfy the standard.
1) When the number of Left Cutting Pixels is Beginning <Middle <End : Increase the value of
[SPM_PSCR_XXXX]. (Note: [SPM_PSCR_1125] = Default value
* It moves by 1 pixel for every 5 PSCR values.
When the
PSCR value increases , the number of Left Cutting Pixels of the
projection at the end position decreases .
2) When the number of Left Cutting Pixels is Beginning> Middle> End: Decrease the
value of [SPM_PSCR_XXXX]. (Note: [SPM_PSCR_1125] = Default value)
* It moves by 1 pixel for every 5 PSCR values.
When the
PSCR value decreases , the number of Left Cutting Pixels of the
projection at the
end position increases
.