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Method for checking DRC configuration file

A configuration file and graphics technology, applied in special data processing applications, instruments, electrical and digital data processing, etc., can solve the problems of incorrect graphics and successful tape-out that cannot cover design rules, and the accuracy of DRC configuration files cannot be guaranteed. The effect of accuracy

Active Publication Date: 2009-05-20
SHANGHAI HUAHONG GRACE SEMICON MFG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of this method is that the manually constructed error graphics and the design of the successful tape-out cannot cover all the design rules in the layout design rules, so the accuracy of the DRC configuration file cannot be guaranteed

Method used

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  • Method for checking DRC configuration file
  • Method for checking DRC configuration file
  • Method for checking DRC configuration file

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Embodiment Construction

[0018] The method for verifying the DRC configuration file of the present invention includes the following steps: designing two groups of graphics, one group is correct graphics, the graphics meet the requirements of the layout design rules, and the other group is wrong graphics, the wrong graphics do not meet the layout design rules Requirements, these two groups of graphics contain all the rules in the layout design; use the DRC configuration file to check the correct graphics and wrong graphics respectively, if there are no errors in the correct graphics, and there are errors in the corresponding rules in the checked wrong graphics, it means that the DRC configuration The file is correct, otherwise it means that the DRC configuration file is wrong and needs to be modified (see Figure 4 ).

[0019] The method for verifying the DRC configuration file of the present invention realizes the design of the correct graphics through the parameterization unit, so that the correct gr...

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Abstract

The invention discloses a method for verifying DRC configuration file which includes the following steps: two sets of graphics are designed with one set being a correct graphic and the other being a wrong graphic; the correct graphic and the wrong graphic are respectively checked by a DRC configuration file; if no error is checked out from the correct graphic and corresponding error is checked out from the wrong graphic, the DRC configuration file is correct; otherwise the DRC configuration file is wrong and needs to be corrected. The invention ensures the correctness of the DRC configuration file and the checking accuracy of layout rule, thereby well ensuring successful tape out of chip.

Description

technical field [0001] The invention relates to a semiconductor design process method, in particular to a method for verifying a DRC (Design Rule Check, Design Rule Check) configuration file by using correct graphics and wrong graphics. Background technique [0002] DRC inspection must be carried out during chip layout design. Patterns that do not conform to layout design rules cannot be guaranteed to be realized on silicon chips. figure 1 The position of layout verification in IC design is illustrated. [0003] Any physical layout verification tool checks the layout data through the DRC configuration file, and its process is as follows figure 2 shown. The quality of the DRC configuration file can determine the accuracy of the layout design rule check. Therefore, the DRC configuration file must cover every rule in the layout design, and there must be no missing errors (layout errors are not checked out), and no false errors (correct layout was reported wrong). [0004] ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 晏志卿
Owner SHANGHAI HUAHONG GRACE SEMICON MFG CORP