Microwave silicon carbide Schottky diodes

被引:6
|
作者
Eriksson, J [1 ]
Rorsman, N [1 ]
Zirath, H [1 ]
机构
[1] Chalmers Univ Technol, Dept Microelect, Microwave Elect Lab, SE-41296 Gothenburg, Sweden
关键词
Cutoff frequency - High frequency applications - High power applications - Microwave diodes - Reverse voltage - Silicon carbide diodes - Specific epistructure;
D O I
10.1049/el:20010163
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
A silicon carbide (4H-SiC) Schottky barrier diode designed for high power and high frequency applications is investigated. Current and capacitance measurements show that a diode with a radius of 5 mum has a cutoff frequency of 91GHz. A larger 4H-SiC Schottky diode with an anode radius of 50 mum is shown to handle a reverse voltage of 40V, while hearing a series resistance of 2.5 Omega and a cutoff Frequency of 10GHz. Empirical formulas for the series resistance and capacitance as a function of anode radius are derived for vertical diodes with cylindrical symmetry on the specific epistructure used in this work.
引用
收藏
页码:250 / 252
页数:3
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