CLEARANCE CHECK CONTROL DEVICE IN PRINTED BOARD DESIGN CAD AND ITS METHOD

PROBLEM TO BE SOLVED: To achieve clearance check based on a circuit network with a plurality of design references/specifications by automating reference gap value calculation in a printed board CAD. SOLUTION: Attribute information classified with types or characteristics based on design standards or specifications is input to the circuit network of printed circuit board data, and when a plurality of design reference to be used are selected, the design reference information described based on the combination of the types or characteristics of the circuit network is used to automatically calculate a reference gap for performing the clearance check of printed circuit board design. COPYRIGHT: (C)2008,JPO&INPIT