Layout DRC violation comparison and positioning method

Abstract

The invention provides a layout DRC violation comparison and positioning method. The method comprises the following steps: generating an original-version violation coordinate file containing original-version violation coordinates and a new-version violation coordinate file containing new-version violation coordinates; judging whether the violation types are consistent or not; if theviolation types are consistent and are all polygons, respectively converting the original-version violation coordinate file and the new-version violation coordinate file into an original version layout file and a new version layout file, carrying out comparison, and highlighting and positioning different polygons after comparison; if the violation coordinate types are consistent and are edges, highlighting and positioning different edges after comparison; and if the types of the violation coordinates are inconsistent, converting the violation coordinates into consistent types. According to the layout DRC violation comparison and positioning method, layout violation comparison and positioning can be efficiently achieved, the defects that when the number of violations is too large, time and labor are consumed in manual comparison, and mistakes are prone to occurring are overcome, and therefore the DRC development efficiency and accuracy are improved, the project period is shortened, and the research and development cost is reduced.

Description

technical field [0001] The invention relates to the field of semiconductor technology, in particular to a method for comparing and locating layout DRC violations. Background technique [0002] Layout design rules are the key factors to ensure successful circuit design, smooth mass production of products and guaranteed chip yield. As process nodes shrink and layout design rules become more and more complex, the accuracy of design rule checking (DRC) is particularly important. During the DRC development process, in order to ensure the accuracy of the new version of DRC, a typical method is to evaluate the same layout with the original DRC, and compare the number and location of layout violations checked by the two versions of DRC. When there are too many violations, the manual comparison method is time-consuming, laborious and error-prone, and cannot guarantee the efficiency and accuracy of DRC development. [0003] The coordinate data comparison method of the DRC file discl...

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Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a method for comparing and locating layout DRC violations, which is used to solve the problem of lack of coordination between different types of graphic coordinates in the rules for comparing data coordinates in the prior art. Compare to meet the needs of DRC development

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