Chang, Christophe ; Sommet, Raphael ; Quéré, Raymond ; Dueme, Ph.
(2004)
Nonlinear thermal reduced model for Microwave
Circuit Analysis.
In: Gallium Arsenide applications symposium. GAAS 2004, 11—12 Ottobre, Amsterdam.
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Abstract
With the constant increase of transistor power
density, electro thermal modeling is becoming a necessity for
accurate prediction of device electrical performances. For this
reason, this paper deals with a methodology to obtain a precise nonlinear thermal model based on Model Order Reduction of a three dimensional thermal Finite Element (FE) description.
This reduced thermal model is based on the Ritz vector approach which ensure the steady state solution in every case.
An equivalent SPICE subcircuit implementation for circuit simulation is proposed and discussed. The nonlinear approach of the reduced model is based on the Kirchoff transformation.
The model has been successfully implemented in a circuit simulator for a PHEMT device.
Abstract
With the constant increase of transistor power
density, electro thermal modeling is becoming a necessity for
accurate prediction of device electrical performances. For this
reason, this paper deals with a methodology to obtain a precise nonlinear thermal model based on Model Order Reduction of a three dimensional thermal Finite Element (FE) description.
This reduced thermal model is based on the Ritz vector approach which ensure the steady state solution in every case.
An equivalent SPICE subcircuit implementation for circuit simulation is proposed and discussed. The nonlinear approach of the reduced model is based on the Kirchoff transformation.
The model has been successfully implemented in a circuit simulator for a PHEMT device.
Document type
Conference or Workshop Item
(Paper)
Creators
Subjects
DOI
Deposit date
15 Jun 2005
Last modified
17 Feb 2016 14:10
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Document type
Conference or Workshop Item
(Paper)
Creators
Subjects
DOI
Deposit date
15 Jun 2005
Last modified
17 Feb 2016 14:10
URI
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