Axis 7100 Installation Guide Page 376

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Algorithms
Kerf Check Algorithm
Advanced Dicing Technologies Ltd.
A-10
Alignment to be performed, the Align Type parameter must be specified
as Dress Manual Once.
Kerf Check Algorithm
The Kerf Check algorithm controls the manner in which the System
performs Kerf Checking on Workpieces. Kerf Checking can only be
performed once the Teach Kerf Check procedure has been completed. There
are no compulsory parameters
that have to be included in the Recipe in
order for Kerf Checking to be performed, since all necessary parameters
are generated by the Teach Kerf Check procedure. However, it is
recommended that the default values assigned to the parameters when
they are generated be modified as necessary.
There is no need to change the values of the Head Taught parameter.
Bright Kerf Algorithm
By means of this algorithm, the Model 7100 software causes the system to
search for the cutting area according to dark-bright-dark sections, which
means once the system receives a pattern of dark section-bright section-
dark section on the wafer, the system knows how to process the image. In
order for the Bright Kerf algorithm to function, Bottom Illumination
must be installed on the system and enabled under the User
Configuration Options.
Full Teach Alignment Algorithm
The Full Teach Alignment algorithm controls the manner in which
Alignment is taught to the System. In order for the Full Teach Alignment
algorithm to function, the following parameters must be included in the
Recipe:
Align category
Align-Cut Sequence
Angle Difference Tolerance
Index
Note: The Full Dress Alignment algorithm is applicable only when using a
dressing block or workpiece mounted on the Chuck as the dressing medium.
Note: The values of the following parameters can only be adjusted
downwards: Kerf Checks Per Cut and Kerf Checks per Area.
Note: This algorithm is available only when a specially designed Illuminated
Chuck is installed and configured on the system.
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