We probed into the most source - drain resistance and its temperature behavior particularly . the result of calculation indicated that the attenuation of source - drain current caused by the source - drain resistance increased when temperature increased 对寄生的漏源串联电阻及其温度特性进行了详细探讨，计算结果表明，漏源串联电阻给漏源电流造成的衰减在温度升高后变得很大。
