Title :
Vertical nanowire array Schottky junction - A new power rectifier concept
Author :
Gurugubelli, Vijaya Kumar ; Karmalkar, Shreepad
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Madras, Chennai, India
Abstract :
In a VNWA Schottky rectifier, Vbr can be raised and/or Rs,sp lowered progressively by increasing S/R. This can be interpreted in several ways: the performance of this rectifier can be improved at the cost of device area; this rectifier offers an additional degree of flexibility in terms of the device area in device design; the structure of this rectifier allows tailoring of Vbr and Rs,sp using a geometry parameter such as the device area, which is not possible in a conventional bulk rectifier; SiC or GaN bulk device performance can be achieved by a Si VNWA device of larger area; SiC or GaN VNWA Schottky rectifiers can achieve the performance of bulk Schottky rectifiers in even higher bandgap materials, which may not be available in practice.
Keywords :
III-V semiconductors; nanowires; rectifiers; wide band gap semiconductors; GaN; SiC; Arrays; Dielectrics; Doping; Junctions; Schottky barriers; Silicon; Substrates;
Conference_Titel :
Device Research Conference (DRC), 2015 73rd Annual
Conference_Location :
Columbus, OH
Print_ISBN :
978-1-4673-8134-5
DOI :
10.1109/DRC.2015.7175573