A method for checking the existence of solutions of equations in automatic design of integrated circuits

A technology of integrated circuits and inspection methods, applied in CAD circuit design, calculation, electrical and digital data processing, etc., can solve problems such as low efficiency, and achieve the effects of easy control, simple algorithm implementation, and clear and unified process.

Active Publication Date: 2019-10-25
北京华大九天科技股份有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

If multiple inspections are required, multiple traversals are required, which is inefficient

Method used

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  • A method for checking the existence of solutions of equations in automatic design of integrated circuits
  • A method for checking the existence of solutions of equations in automatic design of integrated circuits
  • A method for checking the existence of solutions of equations in automatic design of integrated circuits

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Embodiment Construction

[0031] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0032] figure 1 For the flow chart of the method for checking the existence of equations in the automated design of integrated circuits according to the present invention, reference will be made below figure 1 , The method for checking the existence of the solution of the equations in the integrated circuit automatic design of the present invention is described in detail.

[0033] First, in step 101, initialize a container. Initially, the container is empty; traverse all the devices in the netlist, analyze the characteristics of the devices, and gradually build the container according to the connection relationship of the devices. We set in this container, if there are two node...

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Abstract

The invention discloses an existence inspection method for a solution of an equation set in the automated design of an integrated circuit. The method comprises the following steps that: according to the connection relationship of a device, constructing a container; according to the container, judging whether the device forms a special loop to cause an equation set to have no solutions; and according to the device, judging whether optimization forms the special loop to cause the equation set to have no solutions. By use of the method disclosed by the invention, in the automated product of the integrated circuit, the reasonability of circuit design is inspected, especially, the existence of the solution of the equation set due to the special loop is inspected so as to reduce an ergodic process and improve circuit design efficiency.

Description

Technical field [0001] The invention relates to the field of integrated circuit automation product design, and in particular to a method for checking the existence of a system of equation solutions in automation design. Background technique [0002] The existence check of the solution of circuit equations is an important part of the design process of integrated circuit automation products. Efficient and accurate inspection can detect the absence of the solution of the equation system in advance, find and solve the problem in time, which can greatly shorten the cycle of electronic circuit design and reduce the risk of design failure. As the process continues to progress towards the nanometer level, the scale of the circuit in the design of electronic circuits is also rapidly expanding, and circuit designers are faced with large and complex topological connections. [0003] In the current field of integrated circuit automation, most products fill the equations based on the improved ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
CPCG06F30/30
Inventor 刘琳徐启迪周镇亚邵雪
Owner 北京华大九天科技股份有限公司
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