In-situ reflectance monitoring during MOCVD of AlGaN

被引:39
作者
Ng, TB [1 ]
Han, J
Biefeld, RM
Weckwerth, MV
机构
[1] Sandia Natl Labs, Albuquerque, NM 87185 USA
[2] Star Med Technol, Pleasanton, CA 94566 USA
关键词
AlGaN; in-situ; metalorganic chemical vapor deposition (MOCVD); reflectance;
D O I
10.1007/s11664-998-0385-8
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
We report in-situ optical reflectance monitoring during the metalorganic chemical vapor deposition (MOCVD) growth of(AI)GaN. In addition to the well-known thin film interference effect which enables a real-time determination of growth rate, we show that several insights about the MOCVD growth process can be gained by using this simple yet powerful technique. Illustrations from a variety of applications for in-situ reflectance monitoring, specifically the study of growth evolution, the control of alloy fractions, and the use of growth rate to gauge surface kinetics and gas injection will be reported.
引用
收藏
页码:190 / 195
页数:6
相关论文
共 30 条
[1]   EFFECTS OF THE BUFFER LAYER IN METALORGANIC VAPOR-PHASE EPITAXY OF GAN ON SAPPHIRE SUBSTRATE [J].
AMANO, H ;
AKASAKI, I ;
HIRAMATSU, K ;
KOIDE, N ;
SAWAKI, N .
THIN SOLID FILMS, 1988, 163 :415-420
[2]   METALORGANIC VAPOR-PHASE EPITAXIAL-GROWTH OF A HIGH-QUALITY GAN FILM USING AN AIN BUFFER LAYER [J].
AMANO, H ;
SAWAKI, N ;
AKASAKI, I ;
TOYODA, Y .
APPLIED PHYSICS LETTERS, 1986, 48 (05) :353-355
[3]   MATRIX-ISOLATION STUDY OF THE REACTIONS OF TRIMETHYLALUMINUM WITH AMMONIA [J].
AULT, BS .
JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (20) :7908-7912
[4]   RELATION BETWEEN SURFACE ROUGHNESS AND SPECULAR REFLECTANCE AT NORMAL INCIDENCE [J].
BENNETT, HE ;
PORTEUS, JO .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1961, 51 (02) :123-+
[5]   A VIRTUAL INTERFACE METHOD FOR EXTRACTING GROWTH-RATES AND HIGH-TEMPERATURE OPTICAL-CONSTANTS FROM THIN SEMICONDUCTOR-FILMS USING IN-SITU NORMAL INCIDENCE REFLECTANCE [J].
BREILAND, WG ;
KILLEEN, KP .
JOURNAL OF APPLIED PHYSICS, 1995, 78 (11) :6726-6736
[6]   DESIGN AND VERIFICATION OF NEARLY IDEAL FLOW AND HEAT-TRANSFER IN A ROTATING-DISK CHEMICAL VAPOR-DEPOSITION REACTOR [J].
BREILAND, WG ;
EVANS, GH .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1991, 138 (06) :1806-1816
[7]   INSITU DETECTION OF RELAXATION IN INGAAS/GAAS STRAINED-LAYER SUPERLATTICES USING LASER-LIGHT SCATTERING [J].
CELII, FG ;
BEAM, EA ;
FILESSESLER, LA ;
LIU, HY ;
KAO, YC .
APPLIED PHYSICS LETTERS, 1993, 62 (21) :2705-2707
[8]   A MICROSTRUCTURAL COMPARISON OF THE INITIAL GROWTH OF ALN AND GAN LAYERS ON BASAL-PLANE SAPPHIRE AND SIC SUBSTRATES BY LOW-PRESSURE METALORGANIC CHEMICAL-VAPOR-DEPOSITION [J].
GEORGE, T ;
PIKE, WT ;
KHAN, MA ;
KUZNIA, JN ;
CHANGCHIEN, P .
JOURNAL OF ELECTRONIC MATERIALS, 1995, 24 (04) :241-247
[9]  
HAN J, UNPUB APPL PHYS LETT
[10]  
Heying B, 1996, APPL PHYS LETT, V68, P643, DOI 10.1063/1.116495