DESIGN METHOD AND DESIGN PROGRAM OF PRINTED WIRING BOARD, PATTERN CHECK APPARATUS, RECORDING MEDIUM WITH DESIGN PROGRAM RECORDED, AND PRINTED WIRING BOARD MANUFACTURED USING DESIGN METHOD

摘要

PROBLEM TO BE SOLVED: To provide a design method of a printed wiring board with plated leads added that can accurately determine a wiring condition and check reliable cutting of plated leads by means of contouring. SOLUTION: Pattern data before contouring, including wiring pattern data and plated lead data, and contouring pattern data are raster-developed into contour data images 100A and 100B respectively. The contour data images 100A and 100B are each subjected to an inside/outside determination and filled in contouring closed curves. The filled images are then compared to produce an AND bitmap, and a net is extracted therefrom. COPYRIGHT: (C)2005,JPO&NCIPI