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Once a template cell has been instantiated, the instance can be
changed to represent a new set of parameter values if the
template cell is available. Thus, when a design is exported to
another site that may wish to modify the cell parameters, the template
cells must be exported as well. The template cells are not
automatically added to GDSII files or the other file formats. They
should be supplied as Xic cells, in addition to the GDSII or
other output.
One convenient way to maintain template cells is to place them in
a library.
Assuming that the template cell is available, the following
procedure can be used to alter an instance to a new parameter set.
- Select the instance to modify.
- Bring up the Property Editor from the Edit Menu.
The editor will show a list of the properties and
pseudo-properties of the instance.
- In the listing, look for a property number 7198 named `` Tmpl Params''. If this does not exist, the cell is not an
instance of a template, or the template has no parameters.
- Click on the Tmpl Params property in the list, and press
the Edit button in the Property Editor.
- The current parameter assignments will be listed on the prompt
line, and the user can perform the modifications.
- Press Enter after the new parameters have been given. The
instance will be rebuilt with the new parameter values.
Next: Changing the Parameters of
Up: Template (Parameterized) Cells
Previous: Adding an Instance of
Contents
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Stephen R. Whiteley
2012-04-01