Method of implementing an engineering change order in an integrated circuit design by windows

A computer program product for implementing an engineering change order in an integrated circuit design by windows comprising:

• a medium for embodying a computer program for input to a computer;
• and
• a computer program embodied in the medium comprising instructions for causing the computer to perform steps of:
• (a) receiving as input an integrated circuit design;
• (b) receiving as input an engineering change order to the integrated circuit design;
• (c) creating at least one window in the integrated circuit design that encloses a change to the integrated circuit design introduced by the engineering change order wherein the window is bounded by coordinates that define an area that is less than an entire area of the integrated circuit design;
• (d) performing a routing only for each net in the integrated circuit design that is enclosed by the window;
• (e) replacing an area in a copy of the integrated circuit design that is bounded by coordinates of the window with results of the incremental routing to generate a revised integrated circuit design;
• and
• (f) generating as output the revised integrated circuit design.