User Guide

The Design Rules can be saved in a special Design Rules file (*.dru)by

theuseofthe Saveas.. button.

To apply a set of Design Rules to a board, you can drag any dru file of

the Design Rules branch of the tree view in the Control Panel into the

LayoutEditorwindow.

The Load.. button allows any particular set of Design Rules to be loaded

fromafile.

Change can be used to alter the descriptive text for the current parame

ter set. The description usually appears in the DRC dialog (File tab), as

can be seen in the foregoing diagram. Rich Text format can be used with

thetext.Youwillfindnotesonthisinthehelpsystem.

If you open the Design Rules dialog with the menu Edit/Design Rules.. the

Select button will not be shown. In this case OK ends the dialog, in diffe

rencetothe DRC call,where OK startstheDesignRuleCheck.

The Design Rules dialog offers a range of different options that can be

selectedthroughthetabs.Theoptionsinclude:

File ManagetheDesignRules

Layers Numberofcopperlayers,structureofmultilayer

boards,kindandlengthofvias,thicknessofcopperand

isolationlayers

Clearance Distancesbetweenobjectsinthesignallayers

representingsignalsthatmaybedifferentorthesame

Distance Distancesfromtheboardedgeandbetweenholes

Sizes Minimumtrackwidthandholediameter,particularlyfor

microandblindvias

Restring Widthoftheremainingringatpadsand (micro) vias

Shapes ShapesofpadsandSMDs

Supply Thermalandinsulationsymbolsinsupplylayers

Mask Valuesforsolderstopandsoldercreammasks

Misc Additionalchecks

FromSchematictoFinishedBoard