© Orbotech 2005
Symbion™ Programmer Guide
59
Draft - Confidential
Location Model
The
Location Model
defines the rules to be applied when assessing the
placement accuracy of the component inspected.
The
Location Model
may be one of two types;
Box in Box
and
Point in Box
.
The
Location Model
is defined through the Property editor, in the Model
parameter of the Location inspection.
To select a
Location Model
;
•
With a component selected, click on the
Inspections
tab in the Property
Editor
•
Click the expand icon by the Location item
•
Double click the Value drop down and select from the options
Box in Box 2D
Use the Box in Box method with a user defined
percentage off pad allowance
Box in Box 2D Class 1
Use the Box in Box method with an off pad allowance
according to IPC Class 1 (50% off the land)
Box in Box 2D Class 2
Use the Box in Box method with an off pad allowance
according to IPC Class 2 (50% off the land)
Box in Box 2D Class 3
Use the Box in Box method with an off pad allowance
according to IPC Class 3 (25% off the land)
Point in Box 2D
Use the Point in Box method with user defined X, Y and
Angle tolerances
None
The Location of the component will not be controlled
If the
Location Model
is set to None then regardless of the
accuracy of placement provided the component is fitted it will
pass.
Box in Box
Location Models
are not available for Inspection
Types without terminals, for example
BGA
Summary of Contents for Symbion S36
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