Wiring data generation method and wiring data generation apparatus allowing inconsistency between block internal line and block external lines

摘要

A wiring data generation method includes the steps of generating a line in a block of a first level, carrying out layout of the block of the first level in a block of a second level higher than the first level, and generating mesh lines of the block of the second level connected to the line in the block of the first level within the block of the second level.