Measurement of Channel Temperature in GaN High-Electron Mobility Transistors

In this paper, a simple and reliable method to estimate the channel temperature of GaN high-electron mobility transistors (HEMTs) is proposed. The technique is based on electrical measurements of performance-related figures of merit (I [subscript Dmax] and R [subscript ON]) with a synchronized pulse...

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Bibliographic Details
Main Authors: Joh, Jungwoo, del Alamo, Jesus A., Jimenez, Jose L., Tserng, Hua-Quen, Chou, Tso-Min, Chowdhury, Uttiya
Other Authors: Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Format: Article
Language:en_US
Published: Institute of Electrical and Electronics Engineers 2010
Online Access:http://hdl.handle.net/1721.1/52618
Description
Summary:In this paper, a simple and reliable method to estimate the channel temperature of GaN high-electron mobility transistors (HEMTs) is proposed. The technique is based on electrical measurements of performance-related figures of merit (I [subscript Dmax] and R [subscript ON]) with a synchronized pulsed I -V setup. As our technique involves only electrical measurement, no special design in device geometry is required, and packaged devices can be measured. We apply this technique to different device structures and validate its sensitivity and robustness.