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Lookup NU author(s): Dr Konstantin VasilevskiyORCiD, Dr Alton Horsfall, Dr Christopher Johnson, Professor Nick Wright
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The effectiveness of Boron implanted guard ring (GR) edge termination for SiC Schottky diodes was investigated. Boron implants of energies up to 350 keV (total dose of 7.1(.)10(14)cm(-2)) and up to 200 keV (2.4(.)10(14)cm(-2)) were used to form a box doping profile in GR for the depth of 700 and 400 nm, respectively. The influence of doping level on GR performance was investigated through the use of post implantation annealing under different conditions to vary the Boron activation rate, and reactive ion etching (RIE) to reduce the total surface charge in GR. Fabricated 4H-SiC Schottky diodes revealed soft recoverable avalanche breakdown at voltage of about 1300 V which is 70% of ideal breakdown voltage value.
Author(s): Vassilevski K, Horsfall AB, Johnson CM, Wright NG
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: 10th International Conference on Silicon Carbide and Related Materials 2003 (ICSCRM 2003)
Year of Conference: 2004
Pages: 989-992
ISSN: 0255-5476
Publisher: Materials Science Forum: Trans Tech Publications Ltd
URL: http://dx.doi.org/ 10.4028/www.scientific.net/MSF.457-460.989
DOI: 10.4028/www.scientific.net/MSF.457-460.989
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