| 摘要 |
PROBLEM TO BE SOLVED: To suppress change in a characteristic impedance of a signal, while minimizing the reduction of interconnectivity. SOLUTION: When a specific signal interconnection Wh adjacent to a via V is present, one end LP of an area ER where interconnectivity of interconnections including the specific signal interconnection is to be evaluated is made coincident with an edge line E4 opposed to the via V among edge lines E1 to E4 of the specific signal interconnection Wh, and then a value of an evaluation function is obtained. COPYRIGHT: (C)2011,JPO&INPIT |
