LIBRARY, SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE, AND LOGIC FORMING METHOD FOR SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a logic forming method for semiconductor integrated circuits which solves the malfunctioning due to noise and reduces the power consumption. SOLUTION: The method comprise the steps of: selecting a first circuit constitution of serial type AND gates, etc., from a library (201); executing a simulation of the circuit operation for the circuit constitution (202); using the first circuit constitution as it is, if the noise level of an intermediate node (precharge node) is less than a threshold (204); or selecting second constituent elements such as parallel type AND gates, if the noise level of the precharge node is not less than the threshold (205); and thereby determining a logic circuit for use (207). COPYRIGHT: (C)2004,JPO