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通过建立基于耗尽层等效的准二维模型。模拟了异质结双极晶体管（HeterojuctionBipolarTransistorHBT）的热电耦合特性。在模型中，器件内的温度和少数载流子分布都采用传输线矩阵（TransmissionLineMatrix．TLM）法求得。计算结果表明该模型能有效、方便地分析器件的热电耦合特性，同时能减少对计算的时间占用和内存空间。
By establishing a quasi-two-dimensional model based on the depletion layer equivalence. The thermoelectric coupling characteristics of a Heterojunction Bipolar Transistor HBT are simulated. In the model, the temperature and minority carrier distribution in the device are obtained using the Transmission Line Matrix (TML) method. The results show that the model can analyze the thermoelectric coupling characteristics of the device effectively and conveniently, and reduce the time consumption and memory space of computation.