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Method for quickly identifying and correcting sensitive graphs in layout

A graphic and sensitive technology, applied in special data processing applications, instruments, electrical and digital data processing, etc., can solve the problems of omission of manual inspection, inconsistent design standards of sensitive graphics, etc., to avoid inconsistent design standards, avoid omissions in manual inspection, The effect of shortening the inspection time before tapeout

Pending Publication Date: 2020-02-11
SUZHOU R&D CENT OF NO 214 RES INST OF CHINA NORTH IND GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above problems, the present invention proposes a method for quickly identifying and correcting sensitive graphics in the layout, which avoids the problems of inconsistent design standards of sensitive graphics and omissions during manual inspection

Method used

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  • Method for quickly identifying and correcting sensitive graphs in layout
  • Method for quickly identifying and correcting sensitive graphs in layout
  • Method for quickly identifying and correcting sensitive graphs in layout

Examples

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0022] A method of quickly identifying and correcting sensitive graphics in the layout of the present invention, such as figure 1 shown. After importing a layout data, open a layout unit or general drawing to quickly identify and correct sensitive graphics in the layout. First, define the relevant information of sensitive graphics, including the classification and form of sensitive unit modules, sensitive devices, and sensitive structures. Select and set the specific layout, and then search the sensitive graphics of the layout unit or the general diagram to confirm whether the design requirements of the sensitive graphics are met one by one, such as whether the devices are symmetrically arrang...

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Abstract

The invention discloses a method for quickly identifying and correcting a sensitive graph in a layout, which comprises the following steps of: 1, opening a layout unit or a general graph, and definingrelated information of a sensitive graph; 2, searching a sensitive graph of the layout unit or the general graph; determining whether the design requirements of the sensitive graphs are met or not one by one, if the design requirements are met, determining the next sensitive graph, and if the design requirements are not met, outputting relevant information of the sensitive graph, meanwhile, highlighting and displaying a violation graph, then correcting the violation graph, and finally determining a corrected graph; and 3, repeating the steps until the sensitive graphs in the layout unit or the general graph are completely confirmed. According to the method, the possibility that different layout engineers have inconsistent design standards in design and omission exists in manual inspectioncan be avoided, the design requirements of sensitive graphs are unified, and the inspection time before tape-out of integrated circuit layout design is greatly shortened, so that the whole circuit design process is more efficient.

Description

technical field [0001] The invention relates to the field of integrated circuit layout automation design, in particular to a method for quickly identifying sensitive graphics in the layout. Background technique [0002] In integrated circuit layout design, the layout designer transforms the circuit structure into graphics of different levels that meet the process rules. Before completing the layout design inspection and starting the tape-out, it is generally necessary to check and confirm the layout. Now it is mainly through the circuit board. Figure 1 Consistency (LVS) inspection is a requirement. In the layout design of high-precision integrated circuits, it is necessary to design a large number of circuit-sensitive structures, that is, layout-sensitive graphics, such as operational amplifiers, comparator input pairs, and unit modules that require symmetry. Sensitive patterns are critical to the performance and accuracy of the circuit. With the gradual increase of circuit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/392G06F30/398
Inventor 吕江萍
Owner SUZHOU R&D CENT OF NO 214 RES INST OF CHINA NORTH IND GRP
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