NDLI: Planar Schottky diodes with low barrier height for microwave detector application

Content Provider	IEEE Xplore Digital Library
Author	Shashkin, V. Chechenin, Yu. Danil'tsev, V. Khrykin, O. Maslovsky, A. Murel, A. Vaks, V.
Copyright Year	2002
Abstract	The results of designing and investigation of a sensitivity of microwave detectors, based on planar GaAs diodes with low effective Schottky barrier height are reported. Low pressure metalorganic chemical vapor deposition (MOCVD) technology was used for the modification of the effective Schottky barrier height by means of precise /spl delta/-doping of near-surface layer and for successive deposition of an aluminium film in non-interrupted growth run. A complete quantum-mechanical numerical simulation of the effect produced by /spl delta/-doping on the current-voltage characteristic of the modified diodes is carried out. Comparison of computational results with the experimental characteristics of diodes shows a rather good agreement. Analysis of the carried-out research has allowed one to choose optimum parameters of /spl delta/-layers for producing low barrier diodes (/spl sim/0.2 eV) with a reasonable ideality factor (n<1.5). The best performance of the low barrier diode corresponding to /spl gamma/=5000 V/W and NEP=(3/spl divide/6)/spl middot/10/sup -12/ W/spl middot/Hz/sup -1/2/ at 150 GHz was at zero bias voltage.
Sponsorship	IEEE Electron Devices Soc. IEEE-Solid-State Circuits Soc
Starting Page	335
Ending Page	338
File Size	228556
Page Count	4
File Format	PDF
ISBN	0780372352
DOI	10.1109/MIEL.2002.1003205
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-05-12
Publisher Place	Yugoslavia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Schottky diodes Detectors Schottky barriers Gallium arsenide Chemical vapor deposition MOCVD Chemical technology Aluminum Numerical simulation Current-voltage characteristics
Content Type	Text
Resource Type	Article

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