Non-linear electro thermal model of LDMOS power transistor coupled to 3D thermal model in a circuit simulator

In this article, we introduce a new approach for electro thermal modelling of power LDMOS transistor. The electrical description of each intrinsic component is done with 3D bi-cubic splines. The electrical model is coupled to a 3D thermal model stemming from FEA simulation. This full 3D electro thermal model is used with the ADS circuit simulator.