集成电路器件模型参数提取软件的研究与实现

发布时间：2018-02-13 18:39

本文关键词： 模型参数提取优化算法 EDA软件　出处：《杭州电子科技大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着计算机科学技术的飞速发展,在电路设计领域电子设计自动化(Electronic Design Automation)技术对电路设计人员来说也变得越来越重要。EDA技术的发展使得整个集成电路产业的各个阶段的工作在速度、质量、和精度上得以保证。无疑,在众多的EDA工具软件中电路模拟部分是它们的核心。Spice仿真程序应用简单、精度高,受到了众多电路设计人员的欢迎。在很多EDA设计软件的电路仿真模拟部分是由Spice仿真器来完成的。Spice仿真器在对电路进行仿真之前,首先要获取器件的模型,而模型就是实际物理器件的数学抽象。若Spice仿真器在仿真时使用的是能够精确表征物理器件电气特性的模型,那么Spice仿真器能够很真实的仿真出实际电路的特性。若Spice仿真器在仿真时使用的是不能够精确表征物理器件电气特性的模型,那么仿真出来的电路特性就会与真实的电路特性相差甚远。现如今在集成电路设计领域,电路设计完成后,流片工作的花费动辄就要数十万甚至上百万元,提高流片的成功率变成了一件十分重要的事情。然而,流片的成功率在很大程度上受到电路仿真可靠性的影响。电路仿真是否可靠又与模型的准确度有很大的关系,所以对于电路设计人员来说拥有精确的器件模型已经变成了十分必要的事情。另外,对于模型建立人员来说,拥有一款快速地提取模型的软件能够极大的节省他们的时间和精力。然而,针对Spice模型的仿真和验证软件,目前市面上只有极少的几家国外公司的产品。这些产品的一个license的市场售价大多为一百万以上。我国在上个世纪末也曾经尝试着研发过这一类软件,然而因为种种原因都没有形成市场化的产品。因此,基于上述分析我们设计并实现了一款集成电路器件模型参数提取软件。本文集中阐述了一下我们在设计和实现集成电路器件模型参数提取软件的过程中遇到的各种问题以及这些问题的解决方案,希望借本文和读者交流一下这方面的经验。第一章本文介绍了IC器件模型和器件建模软件概况。然后介绍了本文的目的和本文得到的结论。第二章本文详细介绍了目前市面上流行的几款器件建模软件,并分别分析了它们的优缺点。第三章本文介绍了我们自己实现的软件,其中包括软件功能定义、软件架构等模块。第四章本文详细介绍了几个重要子模块的实现方法。第五章本文提取了一个电感的RF模型参数,并对这些参数进行了验证。
[Abstract]:With the rapid development of computer science and technology, In the field of circuit design, electronic Design automation technology is becoming more and more important for circuit designers. The development of EDA technology makes the whole integrated circuit industry work at speed and quality. There is no doubt that the circuit simulation part of the numerous EDA tools is the core of the .Spice simulation program, which has simple application and high precision. It is welcomed by many circuit designers. In many EDA design software, the circuit simulation part is completed by the Spice emulator. Before the circuit is simulated, the model of the device must be obtained. The model is the mathematical abstraction of the actual physical device. If the Spice simulator uses a model that accurately represents the electrical characteristics of the physical device, Then the Spice simulator can simulate the characteristics of the actual circuit very truth.If the Spice emulator uses a model that can not accurately characterize the electrical characteristics of physical devices, Now in the field of integrated circuit design, when the circuit design is completed, the cost of the chip work will easily amount to 100,000 yuan or even more than one million yuan. It is very important to improve the success rate of the flow sheet. However, the success rate of the flow sheet is greatly affected by the reliability of the circuit simulation. Whether the circuit simulation is reliable or not has a great relationship with the accuracy of the model. So it has become necessary for circuit designers to have accurate device models. Having a software that can quickly extract models can save them a lot of time and effort. However, the simulation and validation software for Spice models, At present, there are only a few products from foreign companies on the market. Most of these products sell for more than 1 million on one license market. In late 0th century, China also tried to develop this kind of software. However, for various reasons, no market-oriented products have been formed. Based on the above analysis, we design and implement a model parameter extraction software for integrated circuit devices. In this paper, we focus on the design and implementation of integrated circuit device model parameters extraction software. And the solutions to these problems, In the first chapter, the author introduces the IC device model and device modeling software, then introduces the purpose of this paper and the conclusion of this paper. The second chapter introduces the detail of this paper. Several popular device modeling software in the market at present, In the third chapter, we introduce our own software, including the definition of software function. In Chapter 4th, the implementation methods of several important sub-modules are introduced in detail. In Chapter 5th, a RF model parameter of inductor is extracted and verified.
【学位授予单位】：杭州电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN402

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