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Template (Parameterized) Cells

Template cells, or parameterized cells, are cells which in addition to possibly containing fixed geometry, contain a script which creates geometry. When a template cell is instantiated, parameters are supplied to the script, so that the geometry can vary between instantiations. A single template cell can replace numerous small cells representing contacts, vias, and devices. Use of template cells can streamline the design process and reduce errors.

Template cells differ from ordinary cells in the following ways:

Either the physical or electrical part of a symbol can be a template cell, or both. A template cell can contain geometry, subcells, and properties just like any other cell.



Subsections
next up previous contents index
Next: How Template Cells Work Up: Using Xic Previous: Operation   Contents   Index
Stephen R. Whiteley 2006-10-23