Through the research of sige material characteristic and growth technology , the optimization of sige hbt device parameters is performanced . after the theoretical check of the vital parameters , the device and the layout of the monolithic integrated circuit lna are designed with the characteristics of the passive device and the process 通过对sige材料特性和生长技术的研究,对sigehbt器件结构参数的优化(尤其是基区的实现方案) ,对主要参数的理论核算,并结合无源器件的特点及实现工艺,完成了以sigehbt器件为有源器件的微波低噪声放大器单片集成电路的器件与版图设计。
The developments of high - speed circuits and mmic pose the problem of analyzing the circuits characterized both in time and frequency domains . a variety of mixed time - frequency methods have been developed during the last quarter century in the research of the vlsi interconnect and package analysis and nonlinear steady - state analysis . this paper examines these methods from a unified point of view . various mixed problems are formulated as circuit equations in the mixed time - frequency domain . fundamental approaches to slove the equations are given , from which all of the published mixed methods can be naturally deduced . this facilitates the comprehension of these methods and is helpful for their applications . some new ideas are proposed based on the cross reference among these different kinds of methods 随着高速集成电路及mmic (微波单片集成电路)的发展，提出了对时-频混合表示电路进行分析的任务.本文用统一的观点考察了通常属于高速电路互连与封装分析、非线性电路稳态响应分析两个不同方面的混合分析问题，指出这类问题的实质是要求解一个时-频混合的电路方程，给出了求解这一方程的基本思路，阐明了现有的各种方法是如何从这一基本思路导出的.这可为认识这些方法的本质与联系，促进它们的应用与发展提供参考.此文还探讨了某些方法之间的相互借鉴，提出了若干新的想法
