Method and apparatus for automating VLSI modifications made after routing has been performed

摘要

An engineering change order (ECO) tool for automatically making changes to an IC design after the IC design has been placed, routed and verified. The ECO tool is configured to receive a directive or a list of directives and to automatically make modifications described by the directives. The ECO tool of the present invention obviates the need to rebuild the IC design from the netlist up as well as the need to make changes manually using a layout editor.