SYNTHESIS STRATEGIES BASED ON THE APPROPRIATE USE OF INDUCTANCE EFFECTS

摘要

A method of optimizing the propagation speed on a wiring layout is provided. In general, the method accounts for and uses inductance effects caused by the propagation of a high-speed signal on a signal wire surrounded by parallel ground wires. In particular, one of the physical parameters defining the wiring layout may be adjusted to create an rlc relationship in the wiring layout that maximizes the signal propagation speed . The physical parameter that is adjusted may be, for example, the wire separation between the signal wire and the ground wires. The disclose method may also be applied to a wiring layout having multiple branches, such as a clock tree. In this context, a first branch may be optimized using the disclosed method. Downstream branches may then be adjusted so that the impedance at the junctions between the branches are substantially equal.