PIN二极管电特性的谱元法快速分析

发布时间：2018-03-30 05:44

本文选题：谱元法　切入点：半导体　出处：《南京理工大学》2015年硕士论文

【摘要】：随着人们对半导体器件的要求越来越高,为了能更好的分析半导体器件的特性,制造出符合要求的半导体器件,对这类器件的数值仿真算法的研究显得至关重要。PIN二极管器件是一类简单而又不失一般性的半导体器件。本文采用谱元法(SEM)的基本理论对PIN管进行了数值仿真,得到了PIN管的稳态特性和瞬态特性,并对仿真算法进行了优化。本文首先介绍了这一课题的研究意义以及国内外的研究现状,紧接着便对PIN二极管的基本理论做出了介绍,包括PIN管的基本工作原理以及描述它的物理方程和边界条件。然后,本文详细介绍了利用SEM方法对PIN二极管进行数值仿真的过程,包括公式的推导、计算机语言的实现思路以及算法正确性的验证。其中,对PIN管的数值仿真主要包括稳态非耦合仿真、稳态耦合仿真以及瞬态耦合仿真。稳态仿真可以得到PIN管的伏安特性,瞬态仿真可以得到PIN管正向和反向的电流过冲效应。最后,对上述仿真算法采用SEM方法的基本特性进行了优化,加快了程序执行的速度。本文中对PIN二极管的数值仿真算法为半导体器件的数值仿真搭建了一个平台,是对其它半导体器件,甚至半导体集成电路仿真的基础。
[Abstract]:With the increasing demand for semiconductor devices, in order to better analyze the characteristics of semiconductor devices, semiconductor devices that meet the requirements are manufactured. It is very important to study the numerical simulation algorithm of this kind of devices. PIN diode devices are a kind of simple and general semiconductor devices. In this paper, the basic theory of spectral element method (SEM) is used to simulate the PIN transistors numerically. The steady-state and transient characteristics of PIN transistor are obtained, and the simulation algorithm is optimized. Firstly, this paper introduces the research significance of this topic and the research status at home and abroad, and then introduces the basic theory of PIN diode. The basic working principle of PIN tube and its physical equation and boundary conditions are described. Then, the process of numerical simulation of PIN diode using SEM method is introduced in detail, including the derivation of formula. The realization idea of computer language and the correctness of the algorithm are verified. Among them, the numerical simulation of PIN tube includes steady-state decoupling simulation, steady-state coupling simulation and transient coupling simulation. The volt-ampere characteristics of PIN tube can be obtained by steady-state simulation. Transient simulation can get forward and reverse current overshoot effect of PIN transistor. Finally, the basic characteristics of SEM method are optimized. In this paper, the numerical simulation algorithm for PIN diodes provides a platform for the numerical simulation of semiconductor devices, which is the basis of the simulation of other semiconductor devices and even semiconductor integrated circuits.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN312.4

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