Thermal Profiles Within the Channel of Planar Gunn Diodes Using Micro-Particle Sensors

James Glover*, Ata Khalid, David Cumming, Geoffrey M. Dunn, Martin Kuball, Miguel Montes Bajo, Chris H. Oxley

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

4 Citations (Scopus)

Abstract

This letter describes the use of a novel micro-particle sensor (∼3μm diameter) and infra-red microscopy to measure the temperature profile within the active channel (typically 3-μm length and 120-μm width) of planar Gunn diodes. The method has enabled detailed temperature measurements showing an asymmetrical temperature profile along the active width of these devices. The asymmetrical temperature profile suggests a similar behavior in the channel current density, which may contribute to the lower than expected RF output power.

Original languageEnglish
Article number7993046
Pages (from-to)1325-1327
Number of pages3
JournalIEEE Electron Device Letters
Volume38
Issue number9
Early online date26 Jul 2017
DOIs
Publication statusPublished - 1 Sep 2017

Structured keywords

  • CDTR

Keywords

  • gunn devices
  • Infrared measurements
  • planar objects
  • temperature measurement

Fingerprint Dive into the research topics of 'Thermal Profiles Within the Channel of Planar Gunn Diodes Using Micro-Particle Sensors'. Together they form a unique fingerprint.

Cite this