Vatech A9 (PHT-30CSS)
Technical manual
VDH-TeM-098
126 / 214
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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.
i.
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
.
ii.
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
.
▲ T
he trend of the number of Left Cutting Pixels in the exposure section according to
PSCR
