| 摘要 |
PROBLEM TO BE SOLVED: To quickly arrange a non-logic cell for reducing the electromagnetic radiation of a semiconductor device at design. SOLUTION: A layout means 1a lays out logic cells and a wiring pattern for connecting the logic cells. A means 1b detects a site to be arranged, that does not include any logic cells and forbidden regions, after layout is completed by the means 1a. A means 1d stores the pattern of the non-logic cell. A means 1c detects a site, containing only the forbidden region. A means 1e arranges the non-logic cell to the site to be arranged, compares the arrangement state of the forbidden area with the pattern of the non-logic cell in the site containing the forbidden region, and arranges the non-logic cell merely to a site, where they do not interfere mutually.
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