The dividing device and the manner null of dividing in the time of wiring of the multilayer

摘要

PROBLEM TO BE SOLVED: To effectively secure a path to be wired in printed board designing by decomposing a via hole into half-penetrating via holes according to a design standard when there is the via hole in the path to be wired. ;SOLUTION: An input pattern generating means 21 generates an input pattern according to an input supplied from an input device 1. Then an interference decision means 22 checks whether or not the input pattern interfers with an existent layout pattern in a layout pattern storage part 31. When there is an interfering pattern, a path securing means 23 decomposes the interferring via hole into half-penetrating via holes according to a design standard storage part 32. A pattern generating means 24 generates and stores the decomposed half-penetrating via holes and inputted pattern in a layout pattern storage part 31 and outputs them to an output device 4.;COPYRIGHT: (C)1999,JPO