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Effect of temperature treatment on Au/Pd Schottky contacts to 4H-SiC
Bulgarian Acad Sci, Inst Appl Phys, BG-4000 Plovdiv, Bulgaria Linkoping Univ, Dept Phys & Measurement Technol, SE-58183 Linkoping, Sweden.
Bulgarian Acad Sci, Inst Appl Phys, BG-4000 Plovdiv, Bulgaria Linkoping Univ, Dept Phys & Measurement Technol, SE-58183 Linkoping, Sweden.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials.
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2002 (English)In: Materials Science Forum, Vols. 389-393, 2002, Vol. 389-3, 929-932 p.Conference paper, Published paper (Refereed)
Abstract [en]

Au/Pd/SiC Schottky baffler contacts have been formed on n-type 4H-SiC grown by sublimation epitaxy. The effect of annealing temperature on the electrical properties of these contacts was studied using IN and C-V measurements. The barrier height was found to increase slightly from 1.14 eV for as-deposited contacts to 1.2 eV after annealing at 500 degreesC, while the more pronounced effect was observed with decrease of the ideality factor, Auger analysis was used to study the metallurgy of the annealed contacts. Strong diffusion between Au and Pd was established after 500 degreesC anneal, while the Pd/SiC interface remained almost steep, The electrical properties of annealed contacts have been study during the thermal treatment at temperatures up to 350 degreesC and prolonged ageing at 300 degreesC and 400 degreesC in nitrogen.

Place, publisher, year, edition, pages
2002. Vol. 389-3, 929-932 p.
Keyword [en]
ageing, barrier height, Schottky contacts, temperature treatment
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-48823OAI: oai:DiVA.org:liu-48823DiVA: diva2:269719
Conference
ICSCRM2001
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2010-12-07

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Yakimova, RositsaKakanakova-Georgieva, AneliaSyväjärvi, MikaelWilzén, LarsJanzén, Erik

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Yakimova, RositsaKakanakova-Georgieva, AneliaSyväjärvi, MikaelWilzén, LarsJanzén, Erik
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The Institute of TechnologySemiconductor MaterialsDepartment of Physics, Chemistry and Biology
Engineering and Technology

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