To provide a semiconductor integrated circuit device that can reduce crosstalk caused by induction even without many extra circuit elements arranged.
Parallel wiring portions 10A, 10B, and 1A in which the flowing direction of signals is inverted are formed at part of a signal route by turning the signal route in the course of the route without using any active circuit element, such as the inverter, etc., which inverts the phase of real signals. Since no inverter is interposed in the courses of the parallel wiring portions, the portions constitute parts of real wiring and do not require any extra circuit element. When signals are transmitted from one side of each parallel wiring portion, the signals are turned in the course is transmission and the transmitting direction of the signals is inverted. When the flowing direction of an electric current flowing through the parallel conductors is inverted, magnetic fields in different directions cancel each other due to electromagnetism and the occurrence of electromagnetic waves is suppressed. The parallel wiring portions 10A, 10B, and 1A can relieve and, in addition, can suppress the occurrence of crosstalk to nearby other wiring.
KATAGIRI MITSUAKI
NAKAMURA ATSUSHI
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