SUBSTRATE DESIGN PROGRAM AND SUBSTRATE DESIGN DEVICE

摘要

PROBLEM TO BE SOLVED: To reduce the labor of a user when designing the wiring pattern of a differential pair line. SOLUTION: This substrate design program to be used for performing the pattern design of a printed circuit board including the wiring pattern of a differential pair line by using board data as the design information of the printed circuit board is characterized in that a computer is made to achieve a pattern correcting function for changing the wiring pattern layer of the differential pair line in the printed circuit board to the other layer, or/and for correcting the size of a beta-pattern so that the differential impedance of the differential pair lane can be within a target range based on pattern data showing the result of the pattern design and the board data. COPYRIGHT: (C)2010,JPO&INPIT