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Title: Aluminum nitride transitional layer for reducing dislocation density and cracking of AlGaN epitaxial films

Abstract

A denticulated Group III nitride structure that is useful for growing Al.sub.xGa.sub.1-xN to greater thicknesses without cracking and with a greatly reduced threading dislocation (TD) density.

Inventors:
; ;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1082895
Patent Number(s):
8349633
Application Number:
12/471,690
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Allerman, Andrew A., Crawford, Mary H., and Lee, Stephen R. Aluminum nitride transitional layer for reducing dislocation density and cracking of AlGaN epitaxial films. United States: N. p., 2013. Web.
Allerman, Andrew A., Crawford, Mary H., & Lee, Stephen R. Aluminum nitride transitional layer for reducing dislocation density and cracking of AlGaN epitaxial films. United States.
Allerman, Andrew A., Crawford, Mary H., and Lee, Stephen R. Tue . "Aluminum nitride transitional layer for reducing dislocation density and cracking of AlGaN epitaxial films". United States. https://www.osti.gov/servlets/purl/1082895.
@article{osti_1082895,
title = {Aluminum nitride transitional layer for reducing dislocation density and cracking of AlGaN epitaxial films},
author = {Allerman, Andrew A. and Crawford, Mary H. and Lee, Stephen R.},
abstractNote = {A denticulated Group III nitride structure that is useful for growing Al.sub.xGa.sub.1-xN to greater thicknesses without cracking and with a greatly reduced threading dislocation (TD) density.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 08 00:00:00 EST 2013},
month = {Tue Jan 08 00:00:00 EST 2013}
}

Works referenced in this record:

Light emitting diodes including pedestals
patent, April 2006


Metalorganic Vapor Phase Epitaxy Growth and Study of Stress in AlGaN Using Epitaxial AlN as Underlying Layer
journal, June 2003


Nitride semiconductor device
patent, February 2004


Air-bridged lateral growth of an Al0.98Ga0.02N layer by introduction of porosity in an AlN buffer
journal, October 2005