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Scan Recipes - Creating and Editing a Scan Recipe
KLA-Tencor P-16+ / P-6 User’s Guide
3-48
KLA-Tencor Confidential
0142530-000 AB
3/13/09
Apply Filter
The Apply Filter option is enabled by default. This means that the filter is applied to
every 3D scan that meets the parameters described in the Y Lead Screw Filter
Constraints.
Wavelength
The Wavelength is the spatial frequency or period of the wave (periodical signal). The
wavelength is the center of the notch filter, the frequency component which is
reduced in the data set. The default value (1000) is set to match the disturbance
artificially induced by the Y lead screw. If the value is changed, the value must be a
positive floating number with a maximum of two decimal points.
Filter Width
The Filter Width is the a value reflecting the number of wavelengths. The default
value for the Filter Width is 0.9 times the wavelength.
Filter Reduction
The default value for the Filter Reduction is 95% of the Wavelength. The Filter
Reduction means that the frequency component at the wavelength is reduced by the
given percentage (e.g., 95% reduction for the default reduction value). The value
must be a positive floating number with a maximum of two decimal points.
Filters Cursors Menu for a 3D Recipe
3
Introduction
3
The 3D Cursors screen is designed to allow the user to view the cursor coordinates,
and manipulate the cursor position and boundaries by coordinate. (See
.)
Figure 3.38
Y Lead Screw Filter Application
Scan image before
applying the Y
Lead
Screw Filter
Scan image after
applying the Y Lead
Screw
Filter