Significant Effect of Emitter Area on the Efficiency, Stability and Reliability of Picosecond Switching in a GaAs Bipolar Transistor Structure

A drastic reduction in the residual voltage (from ~ 100 V to a few volts) and a significant (factor of ~ 2) increase in the dU / dt switching rate is demonstrated experimentally in the superfast ( ~ 200 ps) avalanche switching of a GaAs bipolar junction transistor with increased emitter area. This r...

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Published in:IEEE transactions on electron devices 2010-04, Vol.57 (4), p.733-741
Main Authors: Vainshtein, S.N., Yuferev, V.S., Kostamovaara, J.T., Kulagina, M.M., Moilanen, H.T.
Format: Article
Language:eng ; rus
Subjects:
Bipolar transistor switches
Channels
Emittance
Gallium arsenide
Gallium arsenides
Gunn domains
high-power switch
impact ionization
Ionization
microwave switch
semiconductor device modeling
Semiconductor devices
Stability
Switches
Switching
Switching circuits
Transient analysis
Transistors
Voltage measurement
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cited_by cdi_FETCH-LOGICAL-c387t-c2fa76ca50892135f5748e8b42eba0cd403206dcbb8630e613c5f6882da755dd3
cites cdi_FETCH-LOGICAL-c387t-c2fa76ca50892135f5748e8b42eba0cd403206dcbb8630e613c5f6882da755dd3
container_end_page 741
container_issue 4
container_start_page 733
container_title IEEE transactions on electron devices
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creator Vainshtein, S.N.
Yuferev, V.S.
Kostamovaara, J.T.
Kulagina, M.M.
Moilanen, H.T.
description A drastic reduction in the residual voltage (from ~ 100 V to a few volts) and a significant (factor of ~ 2) increase in the dU / dt switching rate is demonstrated experimentally in the superfast ( ~ 200 ps) avalanche switching of a GaAs bipolar junction transistor with increased emitter area. This result is not a trivial one as only a small number of conductive channels of a few micrometers in diameter participate in the transient independently of the emitter size, while the remaining (passive) part of the structure supplies the switching channels with the currents circulating inside the chip, which makes the impact ionization in the filaments even more powerful. Excellent agreement was found between the experiment and a ¿two-transistor¿ model specially developed here, with one transistor simulating the switching channels and the other the nonswitched part of the structure. Much higher switching stability and reproducibility and much lower power dissipation were observed in the structure with increased emitter area.
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source IEEE Electronic Library (IEL) Journals
subjects Bipolar transistor switches
Channels
Emittance
Gallium arsenide
Gallium arsenides
Gunn domains
high-power switch
impact ionization
Ionization
microwave switch
semiconductor device modeling
Semiconductor devices
Stability
Switches
Switching
Switching circuits
Transient analysis
Transistors
Voltage measurement
title Significant Effect of Emitter Area on the Efficiency, Stability and Reliability of Picosecond Switching in a GaAs Bipolar Transistor Structure
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