Importance

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Abstract

A method is disclosed for automatically planning the routing of circuit paths on a routing surface by defining a topology of the circuit paths according to input data for connections to be routed and respective routing constraints associated with the connections to be routed; creating the circuit paths for connections to be routed having associated routing constraints iteratively according to the defined topology of the circuit paths within each unit zone; evaluating the circuit paths for compliance with the respective routing constraints during the step of creating the circuit paths; and saving data describing the circuit paths. In an alternate embodiment, a method is disclosed for planning the routing of circuit paths on at least one routing surface by creating a pattern of traces on a routing surface from input data for connections in accordance with the trace creating algorithm; after creating less than all of the pattern of traces, analyzing an operational characteristic of traces subject to predetermined routing constraints of the created portion of the pattern of traces in the operating environment of the trace; comparing results of the analyzing step to a specification for the operational characteristic of the created portion of the pattern of traces; modifying the trace creating algorithm if the operational characteristic fails to satisfy the specification; and repeating the foregoing steps until the operational characteristic satisfies the specification.

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First Claim