Existence inspection method for solution of equation set in automated design of integrated circuit

A technology of integrated circuits and inspection methods, applied in CAD circuit design, calculation, electrical 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 processes

Active Publication Date: 2017-05-10
北京华大九天科技股份有限公司
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  • Abstract
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  • 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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  • Existence inspection method for solution of equation set in automated design of integrated circuit
  • Existence inspection method for solution of equation set in automated design of integrated circuit
  • Existence inspection method for solution of equation set in automated design of integrated circuit

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Embodiment Construction

[0031] The preferred embodiments of the present invention will be described below in conjunction with 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 intended to limit the present invention.

[0032] figure 1 For the existence checking method flow chart of equation system solution in the integrated circuit automatic design according to the present invention, will refer to below figure 1 , the method for checking the existence of the solution of the equation system in the automatic design of the integrated circuit of the present invention is described in detail.

[0033] First, in step 101, a container is initialized, initially, the container is empty; all devices in the netlist are traversed, the characteristics of the devices are analyzed, and the container is gradually constructed according to the connection relationship of the devices. We set in this ...

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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, in particular to a method for checking the existence of solutions of equations in automation design. Background technique [0002] Existence check of solutions of circuit equations is an important part in the design process of integrated circuit automation products. Efficient and accurate inspection can detect the non-existence of equations in advance, find problems and solve them in time, which can greatly shorten the cycle of electronic circuit design and reduce the risk of design failure. With the continuous development of technology towards the nanoscale, the scale of electronic circuit design is also expanding rapidly, and circuit designers are faced with large and complex topological connections. [0003] In the current field of integrated circuit automation, most products are based on the improved node method to fill the equation system. Due to the different fi...

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Application Information

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Patent Type & Authority Applications(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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