Instruction manual

Calibration, Maintenance, Troubleshooting and Warranty
X-Y Calibration using Capture Calibration and Autocalibration
290 MultiMode SPM Instruction Manual Rev. B
4. Click on CAPTURE to initiate the automatic calibration routine.
Note: The microscope will begin an automatic series of scans on the reference which
require about one hour to complete. During each scan, the scanner moves the
piezo using carefully calculated movements. Many of these movements are
unusual, giving rise to a variety of images which do not “look” like the normal
reference. For example, pits may resemble trenches and features may be
presented at various angles.
5. As each routine is executed, adjust the scan slightly to optimize the calibration image. This is
accomplished using the Capture Control dialog box, which displays on the control monitor
throughout the calibration routines (see Figure 15.5b).
Figure 15.5b Capture Control Dialog Box
Note: The capture status will begin at skip 2. The program skips the current scan plus
one more before capturing an image for later calibration. This allows hysteresis
and drift to settle out when the scan changes direction and size between images.
6. If the scan has not settled out by the time the capture status changes to On, click on SKIP to
increment the capture to skip 1, skip 2 or skip 3.
Note: Do not click on Abort unless you want to stop the entire Capture Calibration
program.
7. If portions of features are missing, or if the image is blank, click repeatedly on Adjust Y
Offset > Up or Down to adjust the scan until more of the features are imaged. Features
should extend across as much of the displayed image as possible (see Figure 15.5c).
8. Once the image is optimized, allow the software to capture the entire image without
disturbing it. The software automatically indexes to the next image. Once all calibration
images are obtained, the software prompts the user that it is finished.
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