Record the wiring storage Characteristic evaluation program in printed circuit board designing record media and the device

摘要

PROBLEM TO BE SOLVED: To increase the evaluating speed of the wiring laying space of a printed board. ;SOLUTION: The wiring laying space of a printed board is evaluated in such a way that parts are arranged on the board by inputting the connected relations (pin pairs) between the parts and the pins of the parts and grouping a plurality of parts from the positional relation and connected relation among the arranged parts. Then a group shape containing the parts in the above group is generated and pin pairs which are connected from a certain group to other groups are extracted. In addition, the passing points (passing pins) of the wires of the number of the pin pairs are generated on the group shape and the connections among the virtual pins are generated as the connection information among the groups. Finally, the wiring spaces (expressed by the ratios of the areas of conductor sections, such as pins, wires to the area of the external shape of the board) in the groups and among the groups are calculated.;COPYRIGHT: (C)2000,JPO