A Detailed Routing Method Based on Track Allocation

A track allocation and routing method technology, applied in the direction of constraint-based CAD, instruments, calculations, etc., can solve problems affecting the routing of routing schemes, etc., and achieve the effect of optimizing the minimum area constraint, reducing the short-circuit area, and eliminating the short-circuit problem

Active Publication Date: 2022-07-08
FUZHOU UNIV
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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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  • A Detailed Routing Method Based on Track Allocation
  • A Detailed Routing Method Based on Track Allocation
  • A Detailed Routing Method Based on Track Allocation

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

[0046] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the application. Unless otherwise defined, 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 herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and / ...

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Abstract

The invention relates to a practical detailed wiring method based on track allocation, which comprises the steps of: using a track allocation algorithm to obtain an initial wiring scheme; using a wire-removing and rewinding technology to optimize the initial wiring scheme; optimizing a short-circuit area; The results are patched and the overlapping vias are optimized for the final routing scheme. The present invention enables the generation of higher quality detailed routing schemes.

Description

technical field [0001] The invention relates to the technical field of integrated circuit computer aided design, in particular to a detailed wiring method based on track allocation. Background technique [0002] Due to the complexity, routing is usually divided into two stages, general routing and detailed routing. During the overall routing phase, local areas are selected as routing guides for detailed routing. During the detailed routing phase, the pins of each net are connected together according to this guide. Design rule constraints are constantly changing as VLSI technology nodes evolve. 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] Today, many overall routers have been proposed, including FastRoute 4.0, CUGR, NCTUGR 2.0, and others. So it is necessary to propose an efficient detailed router. To meet the ma...

Claims

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Application Information

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Patent Type & Authority Patents(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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