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Ion implantation in 4H-SiC
KTH, School of Information and Communication Technology (ICT).
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2008 (English)In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, ISSN 0168-583X, E-ISSN 1872-9584, Vol. 266, no 8, 1367-1372 p.Article in journal (Refereed) Published
Abstract [en]

Silicon carbide offers unique applications as a wide bandgap semiconductor. This paper reviews various aspects of ion implantation in 4H-SiC studied with a view to optimise ion implantation in silicon carbide. Al, P and Si ions with keV energies were used. Channelling effects were studied in both a-axis and c-axis crystals as a function of tilts along major orthogonal planes and off the major orthogonal planes. Major axes such as [0 0 0 1] and the [ 1 1 (2) over bar 0] and minor axis like the [1 1 (2) over bar 3] showed long channelling tails and optimum tilts for minimising channelling are recommended. TEM analyses of the samples showed the formation of (0 0 0 1) prismatic loops and the (1 1 (2) over bar 0) loops as well,in both a and c-cut crystals. We also note the presence of voids only in P implanted samples implanted with amorphising doses. The competing process between damage accumulation and dynamic annealing was studied by determining the critical temperature for the transition between crystalline and amorphous SiC and an activation energy of 1.3 eV is extracted.

Place, publisher, year, edition, pages
2008. Vol. 266, no 8, 1367-1372 p.
Keyword [en]
ion implantation, silicon carbide, channelling, extended defects, dynamic annealing, damage accumulation
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-38109DOI: 10.1016/j.nimb.2007.12.049ISI: 000256677600046Scopus ID: 2-s2.0-43049169879OAI: oai:DiVA.org:kth-38109DiVA: diva2:435998
Note
18th International Conference on Ion Beam Analysis Location: Univ Hyderabad, Sch Phys, Hyderabad, INDIA Date: SEP 23-28, 2007 Available from: 2011-08-22 Created: 2011-08-22 Last updated: 2017-12-08Bibliographically approved

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Linnarsson, Margareta K.Hallén, Anders

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Janson, Martin S.Linnarsson, Margareta K.Hallén, Anders
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School of Information and Communication Technology (ICT)Microelectronics and Applied Physics, MAP
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