Method for testing correctness of device model simulation results

Abstract

The invention provides a method for testing correctness of device model simulation results. The method comprises the following steps of: generating a circuit simulation netlist on the basis of a device model and a test demand; respectively carrying out simulation by adoption of comparative simulation software and to-be-tested simulation software on the basis of the circuit simulation netlist; and generating a simulation test result on the basis of the simulation result. The method for testing correctness of device model simulation results is an efficient and visual test method; according to the method, a most basic device model building circuit is simulated; and the method is compared with a gold analysis tool to generate a result report which is easy to check, so that simulation software engineers are helped to rapidly and conveniently check the result of supporting the device model by the simulation software so as to save the debugging cost, and circuit design engineers of design companies are helped to rapidly assess whether the support, for the device model, of new simulation software is consistent with the support, for the device model, of the existing simulation software or not so as to save the assessment cost.

Description

technical field [0001] The invention relates to the technical field of semiconductor integrated circuit design, in particular to a method for testing the correctness of device model simulation results. Background technique [0002] The simulation circuit simulator SPICE (Simulation program with integrated circuit emphasis) was first proposed by Professor Donald of the University of California, Berkeley at the 16th Midwest Circuit Theory Symposium on April 12, 1973. Through SPICE analysis, the performance of the circuit can be changed, optimized and verified by considering important design parameters such as process characteristics and temperature during the entire process of circuit design. In modern integrated circuit design, SPICE has become a standard design step, widely used to verify the original design and performance optimization. Therefore, circuit simulation is an important part of the integrated circuit design process. Accurate simulation results can effectively i...

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Problems solved by technology

[0006] 1. It is very time-consuming, because the simulation time of the designed circuit is generally longer;

[0007] 2. It cannot completely cover all the basic unit devices in the device model library, because all device models cannot be used in any circuit;

[0008] 3. If there is a problem, it is difficult to locate. It can only be judged that there is a problem with the support of the device model by the simulation software, but it cannot be accurately located which device model is causing it.

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