ANNEALING OF SCHOTTKY CONTACTS ON 6H-SiC

被引:0
作者
Machac, Petr [1 ]
Orna, Martin [1 ]
Cichon, Stanislav [1 ]
机构
[1] Inst Chem Technol, Tech 5, Prague 16628 6, Czech Republic
来源
ELECTRONIC DEVICES AND SYSTEMS: IMAPS CS INTERNATIONAL CONFERENCE 2011 | 2011年
关键词
Silicon carbide; Schottky diodes; platinum; density of surface state; SILICON-CARBIDE; BARRIER HEIGHT;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The goal of the article was preparation of the Schottky diode on 6H-SiC substrates with low doped epitaxial layer using select metals: platinum, palladium, silver, titanium, chromium, gold, and nickel. The quality of the contacts was compared by values of reverse current at voltage of 30V. Properties of the contacts were optimized by means of annealing in the temperature range from 300 to 700 degrees C. The best results were obtained in the case of platinum. We derived Schottky barriers of tested structures together with a surface state density from forward I-V characteristics. The obtain value was 4x10(13) state/cm(2)eV.
引用
收藏
页码:29 / 32
页数:4
相关论文
共 8 条
[1]   Structural characterization of nickel-titanium film on silicon carbide [J].
Machac, Petr ;
Barda, Bohumil ;
Maixner, Jaroslav .
APPLIED SURFACE SCIENCE, 2008, 254 (06) :1691-1693
[2]   Ni/Ti ohmic and Schottky contacts on 4H-SiC formed with a single thermal treatment [J].
Pérez, R ;
Mestres, N ;
Tournier, D ;
Godignon, P ;
Millán, J .
DIAMOND AND RELATED MATERIALS, 2005, 14 (3-7) :1146-1149
[3]   Structural and electrical properties of Ni/Ti Schottky contacts on silicon carbide upon thermal annealing [J].
Roccaforte, F ;
La Via, F ;
Baeri, A ;
Raineri, V ;
Calcagno, L ;
Mangano, F .
JOURNAL OF APPLIED PHYSICS, 2004, 96 (08) :4313-4318
[4]   Current transport properties of Pd/3C-SiC Schottky junctions with planar and vertical structures [J].
Roy, S ;
Jacob, C ;
Basu, S .
SOLID STATE SCIENCES, 2004, 6 (04) :377-382
[5]   SURFACE-BARRIER HEIGHT IN METAL N-6H-SIC STRUCTURES [J].
SYRKIN, AL ;
ANDREEV, AN ;
LEBEDEV, AA ;
RASTEGAEVA, MG ;
CHELNOKOV, VE .
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1995, 29 (1-3) :198-201
[6]   Ideal ohmic contact to n-type 6H-SiC by reduction of Schottky barrier height [J].
Teraji, T ;
Hara, S ;
Okushi, H ;
Kajimura, K .
APPLIED PHYSICS LETTERS, 1997, 71 (05) :689-691
[7]   Oxygen passivation and reactivation of interface states introduced during Schottky diode fabrication on bulk n-type 6H-SiC [J].
van Wyk, E ;
Leitch, AWR .
APPLIED SURFACE SCIENCE, 2004, 221 (1-4) :415-420
[8]   Device processing and characterisation of high temperature silicon carbide Schottky diodes [J].
Vassilevski, KV ;
Nikitina, IP ;
Wright, NG ;
Horsfall, AB ;
O'Neill, AG ;
Johnson, CM .
MICROELECTRONIC ENGINEERING, 2006, 83 (01) :150-154