Scan View Parameters Tips

Optimizing the Scan Size Parameter

	The Scan Size and offsets can be set by using the Zoom and Offset subcommands in the Scan View.
	Non-zero X and Y Offsets reduce the maximum Scan Size. Each volt of X or Y Offset reduces the maximum scan size by 2V. Having a non-zero Scan Angle will reduce the maximum allowable Scan Size. The maximum Scan Size will also decrease as the Scan Rate increases.

Optimizing the X Offset, Y Offset Parameter

These parameters use the sample as the position reference. Therefore, a more negative X Offset value will move a feature in the current image to the left on the Image display Similarly, a more negative Y Offset moves a feature in the current image down on the Image display.

Using the left-arrow and right-arrow keys when the cursor is in these parameters will decrement and increment these parameters by 10% of the Scan Size.

Using the Zoom or Offset subcommands automatically changes the value of X and Y Offsets.

Optimizing the Scan Size and Scan Rate Parameters

The Scan Size and height of features on the sample will affect the maximum Scan Rate that should be used on a given sample. Scan Rate should be set to a rate that allows the tip to closely track the sample surface in both trace and retrace. In general, larger scans and taller features require slower Scan Rates.

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