Measured Attenuation of Coplanar Waveguide on 6H, p-type SiC and High Purity Semi-Insulating 4H SiC through 800 K

Ponchak, George E. ; Schwartz, Zachary D. ; Alterovitz, Samuel A. ; Downey, Alan N. (2005) Measured Attenuation of Coplanar Waveguide on 6H, p-type SiC and High Purity Semi-Insulating 4H SiC through 800 K. In: Gallium Arsenide applications symposium. GAAS 2004, 11—12 Ottobre, 2004, Amsterdam.
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Abstract

Wireless sensors for high temperature applications such as oil drilling and mining, automobiles, and jet engine performance monitoring require circuits built on wide bandgap semiconductors. In this paper, the characteristics of microwave transmission lines on 4H-High Purity Semi-Insulating SiC and 6H, p-type SiC is presented as a function of temperature and frequency. It is shown that the attenuation of 6H, p-type substrates is too high for microwave circuits, large leakage current will flow through the substrate, and that unusual attenuation characteristics are due to trapping in the SiC. The 4H-HPSI SiC is shown to have low attenuation and leakage currents over the entire temperature range.

Abstract
Document type
Conference or Workshop Item (Paper)
Creators
CreatorsAffiliationORCID
Ponchak, George E.
Schwartz, Zachary D.
Alterovitz, Samuel A.
Downey, Alan N.
Subjects
DOI
Deposit date
21 Oct 2005
Last modified
16 May 2011 11:38
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