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Laser Endotaxy and PIN Diode Fabrication of Silicon Carbide

Published online by Cambridge University Press:  01 February 2011

Zhaoxu Tian ,
Nathaniel R Quick  and
Aravinda Kar
Zhaoxu Tian
Affiliation:
[email protected], University of Central Florida, College of Optics and Photonics/CREOL, 4000 Central Florida Blvd. Bldg. 53, Orlando, FL, 32816, United States, 407-823-6847, 407-823-6880
Nathaniel R Quick
Affiliation:
[email protected], AppliCote Associates, LLC, 1445 Dolgner Pl, Sanford, FL, 32771, United States
Aravinda Kar
Affiliation:
[email protected], University of Central Florida, College of Optics and Photonics, 4000 Central Florida Blvd. Bldg. 53, Orlando, FL, 32816, United States
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Abstract

A laser solid phase diffusion technique has been utilized to fabricate endolayers in n-type 6H-SiC substrates by carbon incorporation. X-ray energy dispersive spectrometry (XEDS) analysis showed that the thickness of endolayer is about 100 nm. High resolution transmission electron microscopy (HREM) images indicate that the laser endotaxy process maintains the crystalline integrity of the substrate without any amorphization. The resistivity of the endolayer was 1.1 ¡Á105 •cm and 9.4 ¡Á104 •cm after annealing at 1000C for 10 min. These resistivities provide device isolation for many applications. The silicon carbide endolayer was doped with aluminum using a laser doping technique to create p-region on the top surface of the endolayer in order to fabricate PIN diodes.

Keywords

laserdiffusiondevices
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 911: Symposium B – Silicon Carbide 2006 – Materials, Processing and Devices , 2006 , 0911-B10-07
Copyright
Copyright © Materials Research Society 2006

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