| 摘要 |
PURPOSE:To obtain a gate array device which withstands a noise by providing wirings for leading a power supply independently from a basic cell and an I/O cell and providing a power supply wiring region at the periphery of the device. CONSTITUTION:An I/O cell region 101 is formed on the outermost periphery of a device, a power supply wiring region 102 is provided around the inside, and a basic cell region 103 and a wiring region 104 are provided inside the region 102. When two circuits of different power supplies are contained in the device, a first circuit 105 and a second circuit 106 have merely different powers, but form the circuits in combination of basic cell and aluminum wirings. When the aluminums are combined by utilizing the region 102 to connect 107 to 111, 108 to 112, 109 to 113, 110 to 114, the powers of the circuits 105, 106 can be isolated to withstand a noise. |
