| 摘要 |
PURPOSE:To improve the transmission characteristics of a signal by directly leading out an output wiring for an output circuit formed in a fundamental cell outside the cell from an active element by a metallic wiring having multilayer structure. CONSTITUTION:A first layer aluminum wiring 23 connects several drain region in a P channel MOS field-effect transistor M2 and an N channel MOS field- effect transistor M5 in common while being connected to a second layer aluminum wiring 24 through a through-hole section TH. The aluminum wiring 24 is lead out to both sides of a fundamental cell 1 while crossing power supply lines 21, 22, and output terminals outa, outb are formed to each of the aluminum wirings 24. The output terminals outa, outb are connected to inter-cell wirings wired in a wiring region 4 through the through-hole section TH. Accordingly, output wirings for an output circuit shaped into the fundamental cell 1 can be lead out even to the wiring regions 4 on both the upper side and lower side of the cell 1 through the aluminum wirings 24 having small resistance, thus improving the transmission characteristics, etc. of signals among cells. |
