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Stage System

Stage Menu Commands

Rev. D Dimension 3100 Manual 75

Figure 5.2d Focus Surface Prompt

2. Use the left button on the trackball to focus on the surface (which moves the SPM or Z stage

up and down).

3. Use the right button on the trackball to zoom out completely when trying to focus on the

surface.

4. If the sample is not already under the microscope, use the trackball (with neither the left nor

right buttons pressed) to move the X-Y stage until the sample is in position.

5. If the surface is partially in focus, use the Autofocus option to complete the focusing

process.

6. To focus on the sample “surface” (normal operation) or the “tip reflection” (for extremely

clean samples), change the Focus On parameter accordingly.

Note: For reﬂective or semi-reﬂective samples, the tip reﬂection is easier to bring into

focus than the surface, especially if the sample is very ﬂat or clean.

7. For samples which are difficult to bring into focus, move to an edge of the sample, which is

easy to find in the optical image, and bring the top of the edge into focus.

8. Move the sample back to the desired X-Y position.

9. Verify that the surface remains in focus.

CAUTION: When moving the SPM stage up and down, it is possible to crash

the tip into the surface. To prevent a crash while focusing on the

surface, watch the optical image and tip-to-sample proximity. The

sample should be in focus when the tip is 1mm (1000µm) above

the surface.

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Dell 3100 Spezifikationen Seite 95