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

doi:10.1109/LED.2017.2731961

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

School of Physics

Research output: Contribution to journal › Article (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 language	English
Article number	7993046
Pages (from-to)	1325-1327
Number of pages	3
Journal	IEEE Electron Device Letters
Volume	38
Issue number	9
Early online date	26 Jul 2017
DOIs	https://doi.org/10.1109/LED.2017.2731961
Publication status	Published - 1 Sept 2017

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Keywords

gunn devices
Infrared measurements
planar objects
temperature measurement

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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.",

keywords = "gunn devices, Infrared measurements, planar objects, temperature measurement",

author = "James Glover and Ata Khalid and David Cumming and Dunn, \{Geoffrey M.\} and Martin Kuball and \{Montes Bajo\}, Miguel and Oxley, \{Chris H.\}",

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T1 - Thermal Profiles Within the Channel of Planar Gunn Diodes Using Micro-Particle Sensors

AU - Glover, James

AU - Khalid, Ata

AU - Cumming, David

AU - Dunn, Geoffrey M.

AU - Kuball, Martin

AU - Montes Bajo, Miguel

AU - Oxley, Chris H.

PY - 2017/9/1

Y1 - 2017/9/1

N2 - 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.

AB - 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.

KW - gunn devices

KW - Infrared measurements

KW - planar objects

KW - temperature measurement

UR - https://www.scopus.com/pages/publications/85028942950

U2 - 10.1109/LED.2017.2731961

DO - 10.1109/LED.2017.2731961

M3 - Article (Academic Journal)

AN - SCOPUS:85028942950

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SP - 1325

EP - 1327

JO - IEEE Electron Device Letters

JF - IEEE Electron Device Letters

IS - 9

M1 - 7993046

ER -

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

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