Veeco Dektak 150, User Manual

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Single Scan Operation 4-15
SETTING THE ZERO POINT
You may select any point on the profile trace as the zero point. The zero point is the point of reference from
which all measurements are taken. Software leveling sets both the
R and M cursor intercepts at zero.
However, when the Zero function is activated, it sets the zero point only at the R cursor intercept.
To set the zero point:
1 Position the R (reference) cursor at the desired zero location.
2 Select Plot > Zero (or press F8 on the keyboard) to automatically replot the profile trace and establish the
zero point at the R cursor intercept (see
Figure 4-15
).
Figure 4-15: Setting the Zero Point
MAKING A DELTA AVERAGE STEP HEIGHT
MEASUREMENT
Once you run the scan routine and leveled the profile, you can obtain an accurate vertical
measurement of the calibration standard using the Delta Average Step Height analytical function.
Analytical functions are calculated using the
R and M cursors.
1 In the Data Plo t window, click the Analytical Functions icon or select Plot > Analytical
Functions . Alternatively, right-click on the plot and select Analytical Functions....Insert . The Analytical
Functions dialog box appears .
Zero Point