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Key circuit unit positioning method oriented to multiple input vectors

A circuit unit and positioning method technology, which is applied in CAD circuit design, electrical digital data processing, special data processing applications, etc. effect of cost

Active Publication Date: 2019-03-26
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0003] In order to overcome the shortcomings of the existing key unit location methods in the circuit structure that cannot take into account both accuracy and complexity, based on the gradient evolution strategy, the present invention provides a multi-input vector-oriented key circuit unit location method, so that in Ensure high positioning accuracy and fast calculation speed

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  • Key circuit unit positioning method oriented to multiple input vectors
  • Key circuit unit positioning method oriented to multiple input vectors
  • Key circuit unit positioning method oriented to multiple input vectors

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with the accompanying drawings.

[0043] refer to figure 1 , a key circuit unit location method for multiple input vectors, comprising the following steps:

[0044] Step 1: Netlist analysis, circuit unit coding to construct individuals and initialize related quantities, the process is as follows:

[0045] 1.1. Read the circuit subnet table, the circuit subnet table only contains 1 original output terminal, and construct the corresponding integrity linked list LC, and extract the number of units Ng in the circuit;

[0046]1.2. Initialize the failure probability of all basic gates in the circuit as pg, set the increment of failure probability as △pg, and extract the original input terminal of the circuit, and the total number of initialization experiments N, the total number of initialization experiments M and the total number of convergence experiments Nh, iteration variable j=i=h=0 and k=1, convergen...

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Abstract

The invention relates to a key circuit unit positioning method oriented to multiple input vectors. Firstly, the circuit subnet table is read and analyzed, and the related quantities are initialized. Secondly, the initialization method of the critical weights of each circuit unit is constructed through the randomness strategy. Secondly, based on the gradient evolutionary strategy, an adaptive convergence algorithm for calculating the critical weights of circuit elements is designed. Then, based on the adaptive convergence characteristics of the proposed method and the weight relation, the key order of each circuit unit in the circuit structure is given. The invention not only ensures high positioning accuracy, but also has fast calculation speed.

Description

technical field [0001] The invention relates to the positioning of key circuit units in an integrated circuit structure, specifically a method for locating key circuit units oriented to multi-input vectors. Background technique [0002] With the continuous shrinking of the feature size of semiconductor devices and the continuous improvement of integration, it is inevitable that the circuit will have a higher risk of uncertain failure, resulting in a decrease in the reliability margin of the circuit. On the one hand, this is contrary to people's demand for high-reliability electronic circuit products; on the other hand, it increases the cost and risk of using new materials and new process components to design electronic circuit products. Faced with this situation, the industry has proposed a variety of solutions, the most common method is to reuse mature modules to build the required electronic circuit products, and adopt reinforcement strategies for key units in the circuit ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/39
Inventor 肖杰施展辉杨旭华季奇瓯孙紫文胡海根黄玉娇
Owner ZHEJIANG UNIV OF TECH
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