ISSTT Proceedings

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A New Pillar Geometry for Heterostructure Barrier Varactor Diodes

Authors:
B.E.J. Alderman, J. Stake, L. Dillner, D.P. Steenson, M. Ingvarson, E.L. Kollberg, C.M. Mann, J.M. Chamberlain
Abstract:
We report on a novel diode geometry, with reduced thermal resistance, for Heterostructure Barrier Varactor, HBV, diodes. The pillar geometry presented here involves the complete removal of the substrate, electrical contact is made by the forward and reverse side processing of metallic pillars. We propose that there is a limit to the maximum number of barriers that can be used to increase the power capability of a HBV. An analytical model has been developed to study these effects. In considering the case of a perfect thermal heat sink the limit is found to be fourteen, in applying this model to the new pillar structure this is reduced to six.
Categories:
Local Oscillators, Sources
Year:
2001
Session:
7
Full-text:
Download a PDF of this paper.
Page Number(s):
330-339