Panks, A. J. ; Batty, W. ; David, S. ; Johnson, R. G. ; Snowden, C. M.
(2001)
Fully physical electro-thermal CAD for Power FET optimisation by Non Uniform Finger Spacing.
In: Gallium Arsenide applications symposium. Gaas 2001, 24-28 September 2001, London.
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Abstract
A fully physical electro-thermal model is described. I combines he fast, quasi-2-dimensional Leeds Physical Model of MESFETs and HEMTs, with the compact Leeds thermal impedance ma rix model of time-dependent heat flow in complex 3-dimensional systems.The coupled electro-thermal model is applied o the design optimisation of multigate power FETs. In particular,he possibility of reducing emperature variation between gate fingers by non uniform spacing is examined. The implications for improved efficiency, and for possible reduction of thermal intermodulation distortion and improvement of reliability are discussed. The model is validated experimentally by comparison of simulated results agains infrared thermal images of power FETs.
Abstract
A fully physical electro-thermal model is described. I combines he fast, quasi-2-dimensional Leeds Physical Model of MESFETs and HEMTs, with the compact Leeds thermal impedance ma rix model of time-dependent heat flow in complex 3-dimensional systems.The coupled electro-thermal model is applied o the design optimisation of multigate power FETs. In particular,he possibility of reducing emperature variation between gate fingers by non uniform spacing is examined. The implications for improved efficiency, and for possible reduction of thermal intermodulation distortion and improvement of reliability are discussed. The model is validated experimentally by comparison of simulated results agains infrared thermal images of power FETs.
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(Paper)
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DOI
Deposit date
17 Jun 2004
Last modified
17 Feb 2016 13:35
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Document type
Conference or Workshop Item
(Paper)
Creators
Subjects
DOI
Deposit date
17 Jun 2004
Last modified
17 Feb 2016 13:35
URI
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