| 摘要 |
PURPOSE:To reduce processes up to the completion of designing and speedily obtain a result by calling shape data of a circuit block in a data base by a computer system and referring a knowledge base by using the data as an initial value. CONSTITUTION:The shape data of the corresponding circuit block are read out of the data base according to plural feature names inputted to the computer system 3 and the outward shape of each circuit block is determined as the initial value irrelevantly to the shape of a substrate. At the same time, the knowledge base is referred to and then the circuit blocks are arranged in consideration of the electric characteristics of the circuit blocks, characteristics of signal lines used for wiring, arrangement standards, etc. Then it is decided whether or not next input outward shape data are included in the substrate. When not, subordinate circuit blocks are rearranged and electric conductors are rearranged as to a circuit block protruding from the substrate or other proper circuit blocks and it is judged whether or not the arrangement of all the circuit blocks is completed. |
