This paper investigates the simulation, response surface modeling, and optimization of the metalorganic chemical vapor deposition (MOCVD) process for the deposition of gallium nitride (GaN). Trimethylgallium (TMGa) and ammonia (NH3) are the precursors carried by hydrogen into the rotating-disk reactor. The deposition rate of GaN film and its uniformity form the focus of this study. Computational fluid dynamics (CFD) model simulates the deposition of the GaN film. CFD model is employed to identify two design variables, inlet velocity and inlet precursor concentration ratio, which significantly affect the deposition rate and uniformity of GaN film. Compromise response surface method (CRSM) is used to generate response surfaces for average deposition rate and uniformity. These response surfaces are used to generate the Pareto front for the conflicting objectives of optimal rate of average deposition and uniformity. Pareto front captures the trade-off between deposition rate and uniformity of the GaN film. It is observed that for the whole range of design variables, there are numerous options to get stable uniformity levels than deposition rate. The optimal inlet velocity and precursor concentration for different objective functions considered tend to be near the upper bounds.
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Research-Article
Optimization of Gallium Nitride Metalorganic Chemical Vapor Deposition Process
Pradeep George,
Pradeep George
1
Division of Engineering,
Abu Dhabi, UAE
e-mail: pg66@nyu.edu
New York University Abu Dhabi
,P.O. Box 129188
,Abu Dhabi, UAE
e-mail: pg66@nyu.edu
1Corresponding author.
Search for other works by this author on:
Jiandong Meng,
Jiandong Meng
Department of Mechanical
and Aerospace Engineering,
and Aerospace Engineering,
Rutgers, The State University of New Jersey
,Piscataway
, NJ 08854
Search for other works by this author on:
Yogesh Jaluria
Yogesh Jaluria
Department of Mechanical
and Aerospace Engineering,
and Aerospace Engineering,
Rutgers, The State University of New Jersey
,Piscataway, NJ 08854
Search for other works by this author on:
Pradeep George
Division of Engineering,
Abu Dhabi, UAE
e-mail: pg66@nyu.edu
New York University Abu Dhabi
,P.O. Box 129188
,Abu Dhabi, UAE
e-mail: pg66@nyu.edu
Jiandong Meng
Department of Mechanical
and Aerospace Engineering,
and Aerospace Engineering,
Rutgers, The State University of New Jersey
,Piscataway
, NJ 08854
Yogesh Jaluria
Department of Mechanical
and Aerospace Engineering,
and Aerospace Engineering,
Rutgers, The State University of New Jersey
,Piscataway, NJ 08854
1Corresponding author.
Manuscript received April 4, 2014; final manuscript received May 31, 2014; published online March 17, 2015. Assoc. Editor: Giulio Lorenzini.
J. Heat Transfer. Jun 2015, 137(6): 061007 (8 pages)
Published Online: June 1, 2015
Article history
Received:
April 4, 2014
Revision Received:
May 31, 2014
Online:
March 17, 2015
Citation
George, P., Meng, J., and Jaluria, Y. (June 1, 2015). "Optimization of Gallium Nitride Metalorganic Chemical Vapor Deposition Process." ASME. J. Heat Transfer. June 2015; 137(6): 061007. https://doi.org/10.1115/1.4029859
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