基于区域划分的多功能一体集成物理基模型  

A Multi⁃functional Integrated Physical Model Based on Zone Division

作　　者：王棱 毛书漫 黄磊[1] 张波[1] 徐跃杭[1] WANG Leng;MAO Shuman;HUANG Lei;ZHANG Bo;XU Yuehang(School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu,611731,CHN)

机构地区：[1]电子科技大学电子科学与工程学院,成都611731

出　　处：《固体电子学研究与进展》2025年第1期75-81,共7页Research & Progress of SSE

基　　金：国家自然科学基金青年基金项目(62401108);四川省科技计划资助项目(2024NSFJQ0022)。

摘　　要：射频前端芯片的多功能一体化设计对晶体管模型的功能及其复用能力提出了更高的要求。然而,传统模型无法实现多功能复用,导致模型参数提取步骤多、建模效率低。对此,本文提出了一种基于准物理区划分(Quasi-physical zone division, QPZD)理论的多功能的器件物理基建模方法,模型具备非线性、噪声和开关特性的表征能力。首先,本文阐述了QPZD的建模原理,分别介绍了基于QPZD的非线性、微波噪声和开关三类单功能模型理论,并基于统一的核心模型方程提出了上述模型的一体化融合方法及其多功能模型架构。其次,介绍了包括自热效应、环境温度效应和陷阱效应在内的色散效应的建模方法。最后,从晶体管在片测试验证和射频前端多功能芯片设计验证两个角度对建立的模型进行了验证。仿真实测对比结果表明,模型的非线性、噪声和开关特性的综合仿真精度大于80.33%。本文的建模方法对多功能射频前端关键芯片的全面和精准设计具有重要的指导意义。The demand for multi-functional integration in RF front-end chip design has imposed higher requirements on the functionality and reusability of transistor models.Nevertheless,traditional models fail to achieve multi-functional reusability,resulting in a multitude of parameter extraction steps and low modeling efficiency.In response,this paper presents a multi-functional device physics-based modeling approach based on the Quasi-physical zone division(QPZD)theory,which is capable of characterizing nonlinearity,noise,and switching characteristics.Firstly,the paper delineates the modeling principle of QPZD,introduces the modeling methods of nonlinearity,microwave noise,and switching characteristics based on QPZD,and proposes a multi-functional fusion method and an inte-grated model architecture based on a unified core model equation.Secondly,the modeling methods for dispersion effects,including self-heating effects,environmental temperature effects,and trapping ef-fects,are presented.Finally,the model is validated from two perspectives:on-chip test verification of transistors and verification of multi-functional radio frequency(RF)front-end chip design.Simulation and measurement results indicate that the combined simulation accuracy of the model for nonlinearity,noise,and switching characteristics is greater than 80.33%.The modeling method proposed in this pa-per holds significant guiding significance for the comprehensive and precise designs of key RF front-end chip components.

关 键 词：准物理区划分理论 色散效应 噪声模型 开关模型 多功能一体集成模型 

分 类 号：TN385[电子电信—物理电子学]