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3C-SiC MOSFET with High Channel Mobility and CVD Gate Oxide

Kobayashi, M. (author)
Uchida, H. (author)
Minami, A. (author)
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Sakata, A. (author)
Esteve, Romain (author)
Schöner, A. (author)
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2011
2011
English.
In: Materials Science Forum. - 0255-5476 .- 1662-9752. ; 679-680, s. 645-648
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • 3C-SiC MOSFET with 200 cm2/Vs channel mobility was fabricated. High performance device processes were adopted, including room temperature implantation with resist mask, polysilicon-metal gates, aluminium interconnects with titanium and titanium nitride and a specially developed activation anneal at 1600°C in Ar to get a smooth 3C-SiC surface and hence the expected high channel mobility. CVD deposited oxide with post oxidation annealing was investigated to reduce unwanted oxide charges and hence to get a better gate oxide integrity compared to thermally grown oxides. 3C-SiC MOSFETs with 600 V blocking voltage and 10 A drain current were fabricated using the improved processes described above. The MOSFETs assembled with TO-220 PKG indicated specific on-resistances of 5 to 7 mΩcm2.

Keyword

3C-SiC
Capacitance-Voltage Characteristics
Channel Mobility
CVD Deposited Oxide
MOSFET
On Resistance
Post Oxidation Annealing
TZDB

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ref (subject category)
art (subject category)

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