| 摘要 |
PROBLEM TO BE SOLVED: To provide a layout structure of a multiplexer cell in which structure wiring trucks of a METAL2 layer upon one chip being laid out, which trucks are possessed by a four input multiplexer inverter, are increased. SOLUTION: The layout structure of a multiplexer cell has a layout structure of a primitive cell obtained by arranging cell lines, each cell line consisting of P channel transistors and N channel transistors, into upper and lower two lines, and a plurality of transistors constructing a transfer gate are disposed on the upper side of the cell lines and on the lower side of the same. Further, output terminals of the plurality of the transistors disposed as above are connected vertically through a METAL2 wiring while permitting the METAL2 wiring astride the upper and lower cell lines. COPYRIGHT: (C)2004,JPO&NCIPI
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