Importance

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Abstract

A layout amendment specification section includes an input means such as a mouse and gives instructions to an section for compacting within allowable spacing, a wiring compaction section, a rewiring section, and an allowable spacing calculation section. The layout amendment specification section produces vertical ranking data for elements of terminals, via-holes, and wiring divided by each bent point of the wiring route. The allowable spacing calculation section produces vertical and horizontal sequence data that places all elements in order vertically and horizontally, and moreover, calculates the allowable spacing between terminals and via-holes. Based on the allowable spacing data, section for compacting within allowable spacing shifts the terminals and via-holes by pushing them down, and in addition, shifting the terminals and via-holes while maintaining a spacing of a gap compensation amount wherever possible that can accommodate one wire between a terminal or via-hole and an adjacent element.

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First Claim