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The Set Flags Button: Set Skip Flags

The Set Flags button in the DRC Menu enables the ``skip drc'' flag to be set or cleared on objects in the current cell. When the flag is set, the object is ignored by the drc tests. Note that this can cause other tests to fail, for example if a subdimensional object is adjacent to another object on the same layer with its skip flag set, the error will be reported. Objects with the skip flag set are shown as selected. The selected objects can be deselected, or other objects selected, in the usual way. In any case, the selected status when the command exits will be represented in the objects' skip flags.

If the layer has the NoDrcDatatype attribute set in the technology file or with the Edit Tech Params button in the Attributes Menu, objects with the skip flag set will be written with the given datatype rather than the default datatype set in the StreamOut specification, in GDSII and OASIS files.

Objects which intersect a layer named ``NDRC'' are also skipped during DRC testing. Defining an NDRC layer is an easy way to avoid testing logos, process test features, and other objects which would ordinarily produce many errors.


next up previous contents index
Next: The Enable Interactive Button: Up: The DRC Menu: Design Previous: The Setup Button: Set   Contents   Index
Stephen R. Whiteley 2017-03-22