| 摘要 |
PROBLEM TO BE SOLVED: To increase the density of the layout of a cell and realize high-speed processing, and also share the delay parameters or the like of the cell by creating the cell assuming that one portion of the cell is shared, and performing arrangement to share one portion of the cell, using the cell. SOLUTION: After the layout data or the like of the cell is read (S31), a database to be shared that has been created in advance is read (S32). The database to be shared is created, based on the data obtained by separating into a region that can be shared with an adjacent cell and into a region that cannot be shared for each cell. Then, taking into consideration the degree of being adjacent to the cells of the same type, the cells are arranged roughly (S33). Furthermore, by referring to the database to be shared, a cell that is partially shared is arranged in detail (S34-S37).
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