| 摘要 |
PROBLEM TO BE SOLVED: To connect low-order hierarchy functional blocks without specially providing a wiring area. SOLUTION: In a core area 11, a plurality of the low-order hierarchy functional blocks 31-34 are arranged at a narrow interval within the arranging area of a high-order hierarchy functional block 21. The arrangement of cells 41 and inter-cell wiring are performed in the low-order hierarchy functional blocks 31-34, and input/output terminals 41a used for the inter-cell connection are set so as to serve also as the signal connection terminals of the low-order hierarchy functional blocks. The low-order hierarchy functional blocks are connected by connecting the input/output terminals 41a using signal connection wiring 51, and the signal connection wiring 51 is constituted of a wiring layer through the high-order hierarchy functional block 21 and a via. The wiring layer and the via constituting the signal connection wiring 51 are different from the wiring layer and the via used for connecting the cells within the low- order hierarchy functional block.
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