一种新的HEMT器件I－V特性解析模型

A Novel Analytical Current Voltage Characteristics Model for HEMT Devices

提出一种考虑速度过冲效应的ＨＥＭＴ器件Ｉ－Ｖ特性解析模型．在非线性电荷控制模型的基础上，对栅极下面沟道中靠近源端附近的电场采用弱强阶梯场近似，提出了一个半经验的速度过冲模型．经实际计算结果表明。

A novel analytical current voltage characteristics model including velocity overshoot effect for HEMT devices is presented. Based on a more accurate nonlinear charge control formulation, a new velocity overshoot model is developed by the step field approximation for the electrical field near the source end of the channel. The results compared with the measured data show that this model is suitable for CAD applications of higher accuracy.