Calibration > 2D Calibration

Before starting with any marking application, the optic system needs to be well-calibrated. A precisely calibrated static system (correction file and optic settings) is absolutely required and really critical for a good marking results.

It is recommended to start with neutral optic settings:

SAMLight → Settings → System → Optic:

▪Disable X invert, disable Y invert and disable XY flip.

▪Set X gain to 1.0, Y gain to 1.0 and rotation to 0.0°.

SAMLight → Settings → System → Optic → Advanced → Correction, Settings:

▪Set X gain to 1.0, Y gain to 1.0 and rotation to 0.0°.

▪If necessary, inversion and flip of axes can be included in the correction file *.ucf using <SCAPS>\tools\sc_corr_table.

Start to check the calibration:

•Mark a job like ABC-circle.sjf: Is the orientation (X and Y axes) of the marking result correct - is the text "ABC" readable?

oIf not, the correction file must be manipulated. This can be done using <SCAPS>\tools\sc_corr_table (correct the orientation).

•Mark a job like Grid.sjf: Are the X and Y aspect ratios correct? In other words: is 1 mm in the drawing very precisely 1 mm on the target in vertical and horizontal direction throughout the whole working area (not only in the middle of the field)? This is very important for Mark On The Fly and splitting applications.

oIf not, adapt the field size until the dimension in the direction which you want to use as MOTF axis is correct. Mark again: are the X and Y aspect ratios correct?

▪If not, adapt the gain value of the axis, which is not used as MOTF axis. Mark again: are the X and Y aspect ratios correct?

•If not, improve the correction file with sc_corr_table. Please find further information on how to work with sc_corr_table online.