| 摘要 |
PURPOSE:To improve the characteristic of signal transmission speed, etc. and increase the integration degree while keeping the wiring redundancy of wiring channel regions by mixing one-column type basic cell arrays capable of unit cell wiring on any side and two-column type basic cell arrays restricted in unit cell wiring. CONSTITUTION:A two-column type basic cell array BC2 is provided between one-column type basic cell arrays BC1. A wiring channel region CH is provided on the outside of the two-column type basic cell array BC2, but no wiring channel region exists between each of one-column type basic cell arrays BC1-1 and BC1-2 in that array BC2; besides, these arrays BC1-1 and BC1-2 are arranged in right-left symmetry. Therefore, the restriction in use of wiring channel regions of the arrays BC2 can be sufficiently compensated because the arrays BC1 can select any of wiring channel regions. |
