SONOPLOT MICROPLOTTER Proto, Руководство пользователя

Страница: 53 / 67

Enter the width and height of the area that you would like to be calibrated in the X and Y
directions (in microns). If calibrating a sample, choose distances that are a little less than the
dimensions of the sample, keeping the measurements within the bounds of that sample. Once
the proper distances have been set, bring the dispenser to approximately 1 mm over the top left
corner of the sample, then click on
Use current position next to the Top-Left option.
The Top-Left and Top-Right options are for calibrating the rotation of the sample. This will
be covered in the next section.
Click on Calibrate surface cant to begin the surface leveling process. The surface height
will be electronically sensed at five points in the horizontal and vertical directions. After the
sensing run has completed, the cant of the surface in X and Y will be calculated, stored, and
reported in this window. This is expressed as a slope (the number of microns to rise for every
micron out in that direction). Values of 0.0001 to 0.005 are typical for apparently level surfaces.
The calculated cant will be used with automatically dispensed patterns to calculate the correct
height the dispenser needs to move to for each feature.
Rotational calibration
In addition to surface leveling, you may wish to calibrate the rotation of a particular substrate to
ensure that your printed features align with prepatterned elements. You can do this in the
Calibrate Surface window. A dialog box similar to the following will be shown.
To calibrate the rotation of a prepatterned element, choose two points that make up a horizontal
line on that element. Move the positioner to the first point (
Top-Left ) and click the Use
49