| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce a burden of a user when designing a wiring pattern of differential paired lines. <P>SOLUTION: A board design program is used when a pattern design of a printed-circuit board including a wiring pattern of differential paired lines is performed using board data as design information of the printed-circuit board. The board design program causes a computer to execute a wiring rule creation function that automatically creates a wiring rule of the differential paired lines on the basis of a target range of differential impedances of the differential paired lines designated by a user, a wiring pattern layer, a minimal pattern interval, and the board data. <P>COPYRIGHT: (C)2013,JPO&INPIT |
