In its simplest sense, a Keepout acts as an ‘interference’ object that prevents other copper objects from intersecting its area, as specified by the global Clearance Rule.Īltium Designer allows for the creation and application of Keepouts with its support for Object Specific Keepouts. Typically included to control the area used by automated copper placement actions, such as polygon pours and interactive routing, a Keepout also represents an invalid location when manually placing copper objects.Īs specified ‘no go’ areas during design layout, Keepout objects use the existing Clearance Constraint Rules to control routing and detect placement violations, but unlike other placed objects, cannot be assigned to a Net and are not shown in generated Outputs or printouts. Parent page: PCB Placement & Editing TechniquesĪ Keepout in PCB design is a user-defined area or perimeter placed in the layout that copper objects cannot intersect.
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