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浙江大学学报(工学版)
J4  2011, Vol. 45 Issue (5): 831-834    DOI: 10.3785/j.issn.1008-973X.2011.05.009
电气工程     
用于RF-LDMOS的分布式电热耦合模型
孙晓红1,3,张晓东2,胡善文1,3,戴文华4,高 怀1,3
1.东南大学 国家ASIC系统工程中心,江苏 南京 210096； 2. 苏州英诺迅科技有限公司 江苏 苏州 215123；
3.东南大学苏州研究院 高频高功率器件与集成技术研究中心,江苏 苏州 215123；
4.Infineon Technologies North America Corp, 18275 Serene Drive, Morgan Hill, CA 95037, United States
Distributed electro-thermal RF-LDMOS model
SUN Xiao-hong1,3, ZHANG Xiao-dong2, HU Shan-wen1,3, DAI Wen-hua4, GAO Huai1,3
1.National ASIC System Engineering Research Center, Southeast University, Nanjing 210096, China;
2.Suzhou Innotion Tech. Co., Ltd.,Suzhou 215123,China;3.High Frequency & High Power Device and Integrated
Technology Research Center, Research Institute of Southeast University at Suzhou, Suzhou 215123, China;
4.Infineon Technologies North America Corp, 18275 Serene Drive,Morgan Hill, CA 95037 United States
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摘要：

为建立精确的RF-LDMOS大信号模型,提出分布式电热耦合模型.通过采用三维镜像法简单计算单指条的温度分布,进一步使用叠加原理计算得到多指条温度的横向分布,此模型的解析式使用热矩阵方程来表示,通过对计算结果的拟合提取热模型参数.与传统热模型相比,此热模型通过使用指条之间的互热阻表征横向热流的相互作用,同时以分布的热RC网络为多指条建模,代替平均热电阻网络模型.计算结果表明,使用分布式电热耦合模型不仅能更精确反映温度的分布效应,而且可用于等比例缩放时更准确的预测平均热电阻.
Abstract:

To develop an accurate RF-LDMOS large signal model, temperature distribution across a multi-finger device was researched. Using the three dimensional image method, temperature distribution across a finger was easily calculated. Furtherly, for multiple fingers, lateral temperature distribution could be obtained under the superposition principle. A thermal matrix was used to describe the model and the thermal parameters were obtained by fitting with the calculation results. Compared with the traditional thermal model, this model can be used to characterize the heat transferring horizontally by using mutual thermal resistances between fingers and the average thermal resistance network is replaced by distributed thermal RC network to model the multi-fingers. The calculation results show that it can present the temperature distribution and predict the average thermal resistance of scaling devices more accurately．
出版日期: 2011-11-24
:  TN 386  
通讯作者: 高怀，男，教授.     E-mail: ghuainju@hotmail.com
作者简介: 孙晓红（1986-），女，江苏南通人，博士生，从事射频集成技术的研究.E-mail: zixuan19861002@126.com
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引用本文:

孙晓红,张晓东,胡善文,戴文华,高 怀. 用于RF-LDMOS的分布式电热耦合模型[J]. J4, 2011, 45(5): 831-834.

SUN Xiao-hong, ZHANG Xiao-dong, HU Shan-wen, DAI Wen-hua, GAO Huai. Distributed electro-thermal RF-LDMOS model. J4, 2011, 45(5): 831-834.

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https://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.05.009    或    https://www.zjujournals.com/eng/CN/Y2011/V45/I5/831

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