Practical detailed wiring method based on track distribution

A track allocation and routing method technology, applied in constraint-based CAD, special data processing applications, instruments, etc., can solve problems affecting the routing of routing schemes, etc., to optimize the minimum area constraint, increase the metal area, and reduce the short-circuit area Effect

Active Publication Date: 2021-03-26
FUZHOU UNIV
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  • Abstract
  • Description
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Problems solved by technology

However, in track assignment, many interrelated processes, including pin access and connection of wire segments, are handled separately, greatly affecting the routability of the final detailed wiring scheme

Method used

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  • Practical detailed wiring method based on track distribution
  • Practical detailed wiring method based on track distribution
  • Practical detailed wiring method based on track distribution

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[0045] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0046] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0047] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combina...

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Abstract

The invention relates to a practical detailed wiring method based on track distribution, which comprises the following steps: obtaining an initial wiring scheme by adopting a track distribution algorithm; optimizing the initial wiring scheme by adopting a wire removing and rewinding technology; optimizing the short circuit area; and repairing the optimization result of the short-circuit region, and optimizing the overlapped through holes to obtain a final wiring scheme. According to the invention, a detailed wiring scheme with higher quality can be generated.

Description

technical field [0001] The invention relates to the technical field of computer-aided design of integrated circuits, in particular to a practical detailed wiring method based on track allocation. Background technique [0002] Due to the complexity, routing is usually divided into two phases, general routing and detailed routing. In the overall routing stage, select local areas as routing guides for detailed routing. During the detailed routing phase, the pins of each net are connected together according to this guideline. As VLSI technology nodes evolve, design rule constraints change all the time. Since detailed routing is the final stage of routing, design rule constraints need to be optimized as much as possible. Detailed routing becomes one of the most complex and time-consuming stages. [0003] Nowadays, many general routers have been proposed, including FastRoute 4.0, CUGR, NCTUGR 2.0, etc. So it is necessary to propose an efficient detailed router. In order to m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/394G06F30/398G06F30/392G06F111/04G06F115/12
CPCG06F30/394G06F30/398G06F30/392G06F2111/04G06F2115/12
Inventor 刘耿耿敬祎丹庄震黄兴郭文忠陈国龙
Owner FUZHOU UNIV
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