| 摘要 |
The semiconductor integrated circuit enjoys a high performance and can be produced at a low production cost and within a short time. A cell has an internal circuit connection such that an output terminal is connected to a plurality of input terminals through source-drain paths of active devices connected in the tree form, and gate electrodes of the active devices are connected to other input terminals. Two such cells having the same internal circuit connection, the same disposition of the internal circuit devices and the same disposition of the input/output terminals are disposed on the same chip, and mutually different logics can be accomplished by changing the form of application of input signals from outside the cells to the input terminals. A chip area of an integrated circuit designed by CAD using a cell library can be reduced and a high speed circuit operation can be attained. The present invention provides remarkable effect for improving performance of an ASIC, a microprocessor, etc., and for reducing the cost of production.
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