| 摘要 |
<p>PURPOSE:To eliminate the designing mistakes by generating automatically a wiring inhibiting area under a pad based on the pad shape of a surface mounting parts, the layer constitution information of a printed board and the placing coordinates of the surface mounting parts. CONSTITUTION:A wiring inhibition information generating mechanism 41 inputs the later constitution information through a printed board library included in a storage 3 and also inputs the mounting parts data through a printed board design file. The parts name of the printed board library is detected based on the mounted parts name and the type of the detected parts is extracted. Then it is decided, based on parts type, whether the mounted parts is equal to a surface mounting parts or not. If so, the pad shape of a parts pin is inputted from the printed board library. This pad shape is expanded by an extent equal to the prescribed width so that 8 wiring inhibiting area is set. A wiring processing mechanism 43 does not run a wiring pattern in the wiring inhibiting area end performs the wiring processing for the surface mounting parts.</p> |
