Defect reduction in seeded aluminum nitride crystal growth
Abstract
Bulk single crystal of aluminum nitride (AlN) having an areal planar defect density .ltoreq.100 cm.sup.-2. Methods for growing single crystal aluminum nitride include melting an aluminum foil to uniformly wet a foundation with a layer of aluminum, the foundation forming a portion of an AlN seed holder, for an AlN seed to be used for the AlN growth. The holder may consist essentially of a substantially impervious backing plate.
- Inventors:
- Issue Date:
- Research Org.:
- CRYSTAL IS, INC. Green Island, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1361546
- Patent Number(s):
- 9670591
- Application Number:
- 14/458,825
- Assignee:
- CRYSTAL IS, INC.
- Patent Classifications (CPCs):
-
C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
- DOE Contract Number:
- 70NANB4H3051
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2014 Aug 13
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Bondokov, Robert T., Morgan, Kenneth E., Schowalter, Leo J., and Slack, Glen A. Defect reduction in seeded aluminum nitride crystal growth. United States: N. p., 2017.
Web.
Bondokov, Robert T., Morgan, Kenneth E., Schowalter, Leo J., & Slack, Glen A. Defect reduction in seeded aluminum nitride crystal growth. United States.
Bondokov, Robert T., Morgan, Kenneth E., Schowalter, Leo J., and Slack, Glen A. Tue .
"Defect reduction in seeded aluminum nitride crystal growth". United States. https://www.osti.gov/servlets/purl/1361546.
@article{osti_1361546,
title = {Defect reduction in seeded aluminum nitride crystal growth},
author = {Bondokov, Robert T. and Morgan, Kenneth E. and Schowalter, Leo J. and Slack, Glen A.},
abstractNote = {Bulk single crystal of aluminum nitride (AlN) having an areal planar defect density .ltoreq.100 cm.sup.-2. Methods for growing single crystal aluminum nitride include melting an aluminum foil to uniformly wet a foundation with a layer of aluminum, the foundation forming a portion of an AlN seed holder, for an AlN seed to be used for the AlN growth. The holder may consist essentially of a substantially impervious backing plate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {6}
}
Works referenced in this record:
SIGNAL GENERATOR FOR PRODUCING A SET OF SIGNALS AT BASEBAND FREQUENCY AND WITH ADJUSTABLE PHASE SLOPE
patent, August 1971
- Gouldthorpe, Hugh W.
- US Patent Document 3,600,701
METHOD FOR PREPARING ALUMINUM NITRIDE AND METAL FLUORIDE SINGLE CRYSTALS
patent, September 1971
- Huml, James O.; Layne, Gilbert S.
- US Patent Document 3,607,014
METHOD OF MANUFACTURING ALUMINIUM NITRIDE CRYSTALS FOR SEMICONDUCTOR DEVICES
patent, January 1972
- Knippenberg, Wilhelmus Franciscus; Verspui, Gerrit
- US Patent Document 3,634,149
SINGLE CRYSTAL BERYLLIUM OXIDE GROWTH FROM CALCIUM OXIDE-BERYLLIUM OXIDE MELTS
patent, October 1973
- Elkins, Perry E.; Austerman, Stanley B.
- US Patent Document 3,768,983
Adaptive gate video gray level measurement and tracker
patent, September 1975
- Woolfson, Martin G.; Bentley, Floyd C.
- US Patent Document 3,903,357
Aluminum nitride single crystal growth from a molten mixture with calcium nitride
patent, January 1976
- Dugger, Cortland
- US Patent Document 3,933,573
Method of making semiconductor superlattices free of misfit dislocations
patent, May 1978
- Blakeslee, A. Eugene; Matthews, John
- US Patent Document 4,088,515
Stable crystalline lithium nitride and process for its preparation
patent, November 1980
- Rabenau, Albrecht; von Alpen, Ulrich; Schonherr, Erich
- US Patent Document 4,234,554
High thermal conductivity aluminum nitride ceramic body
patent, October 1985
- Huseby, Irvin C.; Bobik, Carl F.
- US Patent Document 4,547,471
Liquid encapsulated zone melting crystal growth method and apparatus
patent, October 1991
- Swiggard, Edward M.
- US Patent Document 5,057,287
Aluminum nitride substrate for formation of thin-film conductor layer and semiconductor device using the substrate
patent, December 1991
- Nakagawa, Noriko; Yasumoto, Takaaki; Nakai, Toshio
- US Patent Document 5,070,393
Light-emitting diode with diagonal faces
patent, February 1992
- Haitz, Roland H.
- US Patent Document 5,087,949
Czochralski method using a member for intercepting radiation from raw material molten solution and apparatus therefor
patent, March 1994
- Tatsumi, Masami; Sawada, Shin-ichi
- US Patent Document 5,292,487
Aluminum nitride substrate and method for producing same
patent, May 1994
- Sato, Hideki; Sugiura, Yasuyuki
- US Patent Document 5,312,698
Method for heat-treating a compound semiconductor
patent, February 1996
- Yamaga, Shigeki; Kimura, Chikao
- US Patent Document 5,494,861
Method for enhancing aluminum nitride
patent, May 1996
- Evans, Keenan L.; Liaw, Hang M.; Lin, Jong-Kai
- US Patent Document 5,520,785
Process for aluminum nitride powder production
patent, June 1996
- Pratsinis, Sotiris E.; Akhtar, M. Kamal; Wang, Guizhi
- US Patent Document 5,525,320
Aluminum nitride film substrate and process for producing same
patent, November 1996
- Utumi, Yoshiharu; Imai, Takahiro; Fujimori, Naoji
- US Patent Document 5,571,603
Integrated heterostructures of Group III-V nitride semiconductor materials including epitaxial ohmic contact non-nitride buffer layer and methods of fabricating same
patent, September 1997
- Schetzina, Jan Frederick
- US Patent Document 5,670,798
Integrated heterostructures of Group III-V nitride semiconductor materials including epitaxial ohmic contact, non-nitride buffer layer and methods of fabricating same
patent, October 1997
- Schetzina, Jan Frederick
- US Patent Document 5,679,965
Semiconductor package having an aluminum nitride substrate
patent, December 1997
- Endo, Mitsuyoshi; Asai, Hironori; Yano, Keiichi
- US Patent Document 5,703,397
Aluminum nitride sintered bodies
patent, March 1998
- Kobayashi, Hiromichi; Bessho, Yuki; Mori, Yukimasa
- US Patent Document 5,728,635
Method for growing a semiconductor single-crystal
patent, January 1999
- Arai, Yoshiaki; Abe, Keisei; Machida, Norihisa
- US Patent Document 5,858,085
Growth of bulk single crystals of aluminum nitride
patent, January 1999
- Hunter, Charles Eric
- US Patent Document 5,858,086
Low temperature method of preparing GaN single crystals
patent, February 1999
- DiSalvo, Francis J.; Yamane, Hisanori; Molstad, Jay
- US Patent Document 5,868,837
Group III-V nitride semiconductor device
patent, June 1999
- Tanaka, Motoyuki; Sogabe, Kouichi
- US Patent Document 5,909,036
IC socket
patent, July 1999
- Gotoh, Yoshihiro; Kawanishi, Yuji; Ohtaka, Katsuhiro
- US Patent Document 5,924,874
Growth of bulk single crystals of aluminum nitride from a melt
patent, September 1999
- Hunter, Charles Eric
- US Patent Document 5,954,874
Growth of bulk single crystals of aluminum nitride
patent, October 1999
- Hunter, Charles Eric
- US Patent Document 5,972,109
Semiconductor laminating structure
patent, November 1999
- Miyajima, Takao; Bellego, Yann Le; Kawai, Hiroji
- US Patent Document 5,981,980
Single crystal of nitride and process for preparing the same
patent, December 1999
- Tanaka, Motoyuki; Sogabe, Kouichi
- US Patent Document 6,001,748
Automated manual transmission controller
patent, December 1999
- Lawrie, Robert E.; Reed, Jr., Richard G.; Bernier, David R.
- US Patent Document 6,006,620
Growth of bulk single crystals of aluminum nitride
patent, April 2000
- Hunter, Charles Eric
- US Patent Document 6,045,612
Simulated diamond gemstones formed of aluminum nitride and aluminum nitride: silicon carbide alloys
patent, April 2000
- Hunter, Charles Eric
- US Patent Document 6,048,813
Production of bulk single crystals of aluminum nitride, silicon carbide and aluminum nitride: silicon carbide alloy
patent, May 2000
- Hunter, Charles Eric
- US Patent Document 6,063,185
Growth of bulk single crystals of aluminum nitride from a melt
patent, May 2000
- Hunter, Charles Eric
- US Patent Document 6,066,205
Growth of bulk single crystals of aluminum nitride: silicon carbide alloys
patent, July 2000
- Hunter, Charles Eric
- US Patent Document 6,086,672
GaN LEDs with improved output coupling efficiency
patent, July 2000
- Lester, Steven D.
- US Patent Document 6,091,085
Tungsten doped crucible and method for preparing same
patent, February 2001
- Phillips, Richard J.; Keltner, Steven Jack
- US Patent Document 6,187,089
Method of fabricating nitride crystal, mixture, liquid phase growth method, nitride crystal, nitride crystal powders, and vapor phase growth method
patent, August 2001
- Shibata, Masatomo; Furuya, Takashi
- US Patent Document 6,270,569
Bulk single crystals of aluminum nitride
patent, October 2001
- Hunter, Charles Eric
- US Patent Document 6,296,956
Crystalline gallium nitride and method for forming crystalline gallium nitride
patent, June 2002
- D'Evelyn, Mark P.; Narang, Kristi Jean
- US Patent Document 6,398,867
Method and apparatus for performing wavelength-conversion using phosphors with light emitting diodes
patent, June 2002
- Garbuzov, Dmitri Zalmanovich; Connolly, John C.; Karlicek, Jr., Robert F.
- US Patent Document 6,404,125
Method for Achieving Improved Epitaxy Quality (Surface Texture and Defect Density) on Free-Standing (Aluminum, Indium, Gallium) Nitride ((Al,In,Ga)N) Substrates for Opto-Electronic and Electronic Devices
patent, September 2002
- Flynn, Jeffrey S.; Brandes, George R.; Vaudo, Robert P.
- US Patent Document 6,447,604
Method of growing single crystal GaN, method of making single crystal GaN substrate and single crystal GaN substrate
patent, October 2002
- Motoki, Kensaku; Okahisa, Takuji; Matsumoto, Naoki
- US Patent Document 6,468,347
Nitride-based VCSEL or light emitting diode with p-n tunnel junction current injection
patent, February 2003
- Kneissl, Michael A.; Kiesel, Peter; Van de Walle, Christian G.
- US Patent Document 6,515,308
GaN-based devices using thick (Ga, Al, In)N base layers
patent, March 2003
- Vaudo, Robert P.; Redwing, Joan M.; Tischler, Michael A.
- US Patent Document 6,533,874
Batch processing for semiconductor wafers to form aluminum nitride and titanium aluminum nitride
patent, April 2003
- Kraus, Brenda D.; Moore, John T.; DeBoer, Scott
- US Patent Document 6,548,405
Production of a GaN bulk crystal substrate and a semiconductor device formed on a GaN bulk crystal substrate
patent, July 2003
- Sarayama, Seiji; Shimada, Masahiko; Yamane, Hisanori
- US Patent Document 6,592,663
III-V nitride substrate boule and method of making and using the same
patent, July 2003
- Vaudo, Robert P.; Flynn, Jeffrey S.; Brandes, George R.
- US Patent Document 6,596,079
Powder metallurgy tungsten crucible for aluminum nitride crystal growth
patent, April 2004
- Schowalter, Leo J.; Slack, Glen A.
- US Patent Document 6,719,843
Method and apparatus for producing large, single-crystals of aluminum nitride
patent, August 2004
- Schowalter, Leo J.; Slack, Glen A.; Rojo, J. Carlos
- US Patent Document 6,770,135
LED reflector for improved light extraction
patent, August 2004
- Karlicek, Jr., Robert F.
- US Patent Document 6,777,717
Light emitting diodes including modifications for light extraction
patent, September 2004
- Slater, Jr., David B.; Glass, Robert C.; Swoboda, Charles M.
- US Patent Document 6,791,119
Group III nitride LED with undoped cladding layer (5000.137)
patent, October 2004
- Edmond, John Adam; Doverspike, Kathleen Marie; Kong, Hua-Shuang
- US Patent Document 6,800,876
Light emitting devices with improved extraction efficiency
patent, December 2004
- Erchak, Alexei A.; Lidorikis, Eleftrios; Luo, Chiyan
- US Patent Document 6,831,302
Methods of bonding two aluminum-comprising masses to one another
patent, January 2005
- Kim, Jaeyeon
- US Patent Document 6,840,431
Nitride semiconductor substrate and method for manufacturing the same, and nitride semiconductor device using nitride semiconductor substrate
patent, March 2005
- Kozaki, Tokuya; Kiyoku, Hiroyuki; Chocho, Kazuyuki
- US Patent Document 6,861,729
Nitride semiconductor laser
patent, May 2005
- Tomiya, Shigetaka; Hino, Tomonori
- US Patent Document 6,891,268
Light-emitting diode (LED) with amorphous fluoropolymer encapsulant and lens
patent, July 2005
- LeBoeuf, Steven Francis; Buckley, Donald Joseph; Weaver, Stanton Earl
- US Patent Document 6,921,929
Bulk GaN and ALGaN single crystals
patent, August 2005
- Melnik, Yuri V.; Soukhoveev, Vitali; Ivantsov, Vladimir
- US Patent Document 6,936,357
Ultraviolet-light-based disinfection reactor
patent, September 2005
- Schulz, Christopher R.
- US Patent Document 6,940,075
Integrated reflector cup for a light emitting device mount
patent, February 2006
- Ludowise, Michael J.; Bhat, Jerome Chandra
- US Patent Document 6,995,402
Light emitting diodes including pedestals
patent, April 2006
- Slater, Jr., David B.; Glass, Robert C.; Swoboda, Charles M.
- US Patent Document 7,026,659
Method of manufacturing a semiconductor light-emitting element
patent, May 2006
- Sugiyama, Hitoshi; Ohashi, Kenichi; Yamashita, Atsuko
- US Patent Document 7,037,738
Method for polishing a substrate surface
patent, May 2006
- Schowalter, Leo J.; Lopez, Javier Martinez; Rojo, Juan Carlos
- US Patent Document 7,037,838
Tantalum based crucible
patent, June 2006
- Helava, Heikki I.; Ramm, Mark Grigorievich
- US Patent Document 7,056,383
High pressure high temperature growth of crystalline group III metal nitrides
patent, June 2006
- D'Evelyn, Mark P.; Webb, Steven W.; Vagarali, Suresh
- US Patent Document 7,063,741
Nitride ceramics to mount aluminum nitride seed for sublimation growth
patent, August 2006
- Rojo, Juan Carlos; Schowalter, Leo J.; Morgan, Kenneth E.
- US Patent Document 7,087,112
Semiconductor package having light sensitive chips
patent, August 2006
- Fjelstad, Joseph
- US Patent Document 7,095,054
Increased light extraction from a nitride LED
patent, October 2006
- Sackrison, Michael; Venugopalan, Hari; Gao, Xiang
- US Patent Document 7,125,734
Light emitting diodes (LEDs) with improved light extraction by roughening
patent, March 2007
- Tran, Chuong Anh; Doan, Trung T.
- US Patent Document 7,186,580
Powder metallurgy crucible for aluminum nitride crystal growth
patent, May 2007
- Schowalter, Leo J.; Slack, Glen A.
- US Patent Document 7,211,146
Light emitting device with patterned surfaces
patent, May 2007
- Erchak, Alexei A.; Lidorikis, Eleftrios; Luo, Chiyan
- US Patent Document 7,211,831
Substrate for nitride semiconductor growth
patent, July 2007
- Kumakura, Kazuhide; Hiroki, Masanobu; Makimoto, Toshiki
- US Patent Document 7,244,520
Card type LED illumination source
patent, July 2007
- Shimizu, Masanori; Yano, Tadashi; Setomoto, Tatsumi
- US Patent Document 7,250,637
Light emitting diode systems
patent, September 2007
- Erchak, Alexei A.; Lidorikis, Eleftrios; Graff, John W.
- US Patent Document 7,274,043
III-V group nitride system semiconductor substrate
patent, October 2007
- Shibata, Masatomo
- US Patent Document 7,276,779
Method of manufacturing GaN crystals and GaN crystal substrate, GaN crystals and GaN crystal substrate obtained by the method, and semiconductor device including the same
patent, October 2007
- Kitaoka, Yasuo; Minemoto, Hisashi; Kidoguchi, Isao
- US Patent Document 7,288,152
Nitride based LED with a p-type injection region
patent, September 2008
- Nagai, Hideo
- US Patent Document 7,420,218
Light emitting diodes including transparent oxide layers
patent, September 2008
- Slater, Jr., David B.; Glass, Robert C.; Swoboda, Charles M.
- US Patent Document 7,420,222
Semiconductor light-emitting device and method for fabricating the same
patent, October 2008
- Takigawa, Shinichi; Ueda, Daisuke; Koike, Susumu
- US Patent Document 7,439,552
Semiconductor light emitting device and method for manufacturing the same
patent, January 2009
- Fujimoto, Akira; Asakawa, Koji; Ohashi, Kenichi
- US Patent Document 7,476,910
Semiconductor light emitting devices and submounts
patent, April 2009
- Keller, Bernd; Ibbetson, James; Andrews, Peter Scott
- US Patent Document 7,518,158
Method and apparatus for aluminum nitride monocrystal boule growth
patent, April 2009
- Wang, Shaoping
- US Patent Document 7,524,376
Light-emitting apparatus
patent, June 2009
- Okamoto, Satoru; Monoe, Shigeharu; Yokoshima, Takashi
- US Patent Document 7,554,128
Nitride semiconductor heterostructures and related methods
patent, December 2009
- Schowalter, Leo J.; Smart, Joseph A.; Liu, Shiwen
- US Patent Document 7,638,346
Doped aluminum nitride crystals and methods of making them
patent, January 2010
- Slack, Glen A.; Schowalter, Leo J.
- US Patent Document 7,641,735
III group nitride semiconductor substrate, substrate for group III nitride semiconductor device, and fabrication methods thereof
patent, March 2010
- Shibata, Masatomo
- US Patent Document 7,674,699
Seeded growth process for preparing aluminum nitride single crystals
patent, March 2010
- Schlesser, Raoul; Noveski, Vladimir; Sitar, Zlatko
- US Patent Document 7,678,195
Nitride semiconductor substrate, and method for working nitride semiconductor substrate
patent, May 2010
- Nishiura, Takayuki; Mezaki, Yoshio
- US Patent Document 7,713,844
Light emitting element structure using nitride bulk single crystal layer
patent, July 2010
- Dwilinski, Robert; Doradzinski, Roman; Garczynski, Jerzy
- US Patent Document 7,750,355
Nitride gallium semiconductor substrate and nitride semiconductor epitaxial substrate
patent, July 2010
- Ueno, Masaki
- US Patent Document 7,755,103
Method and apparatus for producing large, single-crystals of aluminum nitride
patent, August 2010
- Schowalter, Leo J.; Slack, Glen A.; Rojo, J. Carlos
- US Patent Document 7,776,153
Aluminum nitride sintered body and semiconductor manufacturing apparatus member
patent, September 2010
- Teratani, Naomi; Katsuda, Yuji
- US Patent Document 7,803,733
Color control by alteration of wavelength converting element
patent, March 2011
- Paolini, Steven; Camras, Michael D.; Chao Pujol, Oscar Arturo
- US Patent Document 7,902,566
Method of uniform phosphor chip coating and LED package fabricated using method
patent, May 2011
- Loh, Ban P.; Medendorp, Jr., Nicholas W.; Andrews, Peter Scott
- US Patent Document 7,943,952
Light emitting device
patent, June 2011
- Kamada, Kazuo; Nishioka, Yasushi; Urano, Youji
- US Patent Document 7,956,372
Power surface mount light emitting die package
patent, July 2011
- Loh, Ban P.
- US Patent Document 7,976,186
Methods for controllable doping of aluminum nitride bulk crystals
patent, September 2011
- Morgan, Kenneth E.; Schowalter, Leo J.; Slack, Glen A.
- US Patent Document 8,012,257
Thick pseudomorphic nitride epitaxial layers
patent, December 2011
- Grandusky, James R.; Schowalter, Leo J.; Gibb, Shawn R.
- US Patent Document 8,080,833
Deep-eutectic melt growth of nitride crystals
patent, January 2012
- Slack, Glen A.; Schujman, Sandra B.
- US Patent Document 8,088,220
Method and apparatus for producing large, single-crystals of aluminum nitride
patent, February 2012
- Schowalter, Leo J.; Slack, Glen A.; Rojo, J. Carlos
- US Patent Document 8,123,859
Nitride semiconductor heterostructures and related methods
patent, July 2012
- Schowalter, Leo J.; Smart, Joseph A.; Liu, Shiwen
- US Patent Document 8,222,650
Defect reduction in seeded aluminum nitride crystal growth
patent, December 2012
- Bondokov, Robert T.; Morgan, Kenneth E.; Schowalter, Leo J.
- US Patent Document 8,323,406
Large aluminum nitride crystals with reduced defects and methods of making them
patent, January 2013
- Bondokov, Robert T.; Morgan, Kenneth E.; Slack, Glen A.
- US Patent Document 8,349,077
Method and apparatus for producing large, single-crystals of aluminum nitride
patent, October 2013
- Schowalter, Leo J.; Slack, Glen A.; Rojo, J. Carlos
- US Patent Document 8,545,629
Large aluminum nitride crystals with reduced defects and methods of making them
patent, November 2013
- Bondokov, Robert T.; Morgan, Kenneth E.; Slack, Glen A.
- US Patent Document 8,580,035
Doped aluminum nitride crystals and methods of making them
patent, June 2014
- Slack, Glen A.; Schowalter, Leo J.
- US Patent Document 8,747,552
Defect reduction in seeded aluminum nitride crystal growth
patent, September 2014
- Bondokov, Robert T.; Morgan, Kenneth E.; Schowalter, Leo J.
- US Patent Document 8,834,630
Method and apparatus for producing large, single-crystals of aluminum nitride
patent, November 2014
- Schowalter, Leo J.; Slack, Glen A.; Rojo, Juan Carlos
- US Patent Document 8,896,020
Photon extraction from nitride ultraviolet light-emitting devices
patent, February 2015
- Schowalter, Leo J.; Chen, Jianfeng; Grandusky, James R.
- US Patent Document 8,962,359
Led having angled sides for increased side light extraction
patent-application, April 2001
- Krames, Michael R.; Kish Jr., Fred A.; Tan, Tun S.
- US Patent Application 09/732326; 20010000209
Method for growing nitride semiconductor crystals, nitride semiconductor device, and method for fabricating the same
patent-application, June 2001
- Itoh, Kunio; Ishida, Masahiro
- US Patent Application 09/758287; 20010005023
Semiconductor device and method and apparatus for manufacturing semiconductor device
patent-application, September 2001
- Yagi, Shigeru
- US Patent Application 09/772863; 20010024871
Use of CSOH in a Dielectric CMP Slurry
patent-application, December 2001
- Francis, Alicia F.; Mueller, Brian L.; Dirksen, James A.
- US Patent Application 09/428965; 20010051433
Light emitting diodes with improved light extraction efficiency
patent-application, March 2002
- Camras, Michael D.; Krames, Michael R.; Snyder, Wayne L.
- US Patent Application 09/880204; 20020030194
Method and apparatus for growing aluminum nitride monocrystals
patent-application, November 2002
- Vodakov, Yury Alexandrovich; Karpov, Sergei Yurievich; Makarov, Yury Nikolaevich
- US Patent Application 10/067631; 20020170490
Passivated nanoparticles, method of fabrication thereof, and devices incorporating nanoparticles
patent-application, March 2003
- Dutta, Partha
- US Patent Application 10/233587; 20030047816
FCSEL that frequency doubles its output emissions using sum-frequency generation
patent-application, August 2003
- Henrichs, Joseph Reid
- US Patent Application 10/350512; 20030160254
Method and apparatus for producing large, single-crystals of aluminum nitride
patent-application, September 2003
- Schowalter, Leo J.; Slack, Glen A.; Rojo, J. Carlos
- US Patent Application 10/324998; 20030168003
III-V Nitride homoepitaxial material of improved MOVPE epitaxial quality (surface texture and defect density) formed on free-standing (Al,In,Ga)N substrates, and opto-electronic and electronic devices comprising same
patent-application, November 2003
- Flynn, Jeffrey S.; Brandes, George R.; Vaudo, Robert P.
- US Patent Application 10/313561; 20030213964
Light-emitting gallium nitride-based compound semiconductor device
patent-application, November 2003
- Nakamura, Shuji; Mukai, Takashi; Iwasa, Naruhito
- US Patent Application 10/456475; 20030216011
Method for polishing a substrate surface
patent-application, February 2004
- Schowalter, Leo J.; Lopez, Javier Martinez; Rojo, Juan Carlos
- US Patent Application 10/300481; 20040033690
Drain/source extension structure of a field effect transistor including doped high-k sidewall spacers
patent-application, June 2004
- Feudel, Thomas; Horstmann, Manfred; Wieczorek, Karsten
- US Patent Application 10/442745; 20040104442
Gallium nitride material devices and methods of forming the same
patent-application, July 2004
- Weeks, T. Warren; Linthicum, Kevin J.
- US Patent Application 10/650122; 20040130002
Method of fabricating monocrystalline crystals
patent-application, September 2004
- Letertre, Fabrice
- US Patent Application 10/716451; 20040187766
Strain compensated semiconductor structures
patent-application, October 2004
- Saxler, Adam William
- US Patent Application 10/839593; 20040206978
Nitride Semiconductor Layer Structure and a Nitride Semiconductor Laser Incorporating a Portion of Same
patent-application, October 2004
- Amano, Hiroshi; Akasaki, Isamu; Kaneko, Yawara
- US Patent Application 10/040328; 20040213309
Methods of growing nitride-based film using varying pulses
patent-application, November 2004
- Fareed, Ohalid; Gaska, Remigijus; Shur, Michael
- US Patent Application 10/713326; 20040224484
Methods for machining ceramics
patent-application, November 2004
- Laconto, Ronald W.; Ward, Douglas E.
- US Patent Application 10/423283; 20040226917
Homoepitaxial gallium-nitride-based light emitting device and method for producing
patent-application, December 2004
- D'Evelyn, Mark Philip; Evers, Nicole Andrea; LeBoeuf, Steven Francis
- US Patent Application 10/831865; 20040245535
Light emitting element structure using nitride bulk single crystal layer
patent-application, December 2004
- Dwilinski, Robert; Doradzinski, Roman; Garczynski, Jerzy
- US Patent Application 10/493594; 20040251471
Discharge electrode, a discharge lamp and a method for manufacturing the discharge electrode
patent-application, March 2005
- Sakai, Tadashi; Ono, Tomio; Sakuma, Naoshi
- US Patent Application 10/899153; 20050062392
Group-III nitride semiconductor device
patent-application, April 2005
- Sasaoka, Chiaki
- US Patent Application 10/991544; 20050072986
Large area, uniformly low dislocation density GaN substrate and process for making the same
patent-application, May 2005
- Xu, Xueping; Vaudo, Robert P.
- US Patent Application 10/712351; 20050103257
Method and apparatus for fabricating crack-free Group III nitride semiconductor materials
patent-application, June 2005
- Dmitriev, Vladimir A.; Melnik, Yuri V.
- US Patent Application 10/778633; 20050142391
AlxInyGa1-x-yN mixture crystal substrate, method of growing same and method of producing same
patent-application, July 2005
- Nakahata, Seiji; Hirota, Ryu; Motoki, Kensaku
- US Patent Application 11/041202; 20050161697
Bulk GaN and AlGaN single crystals
patent-application, July 2005
- Melnik, Yuri V.; Soukhoveev, Vitali; Ivantsov, Vladimir
- US Patent Application 11/083609; 20050164044
Fabrication of nonpolar indium gallium nitride thin films, heterostructures and devices by metalorganic chemical vapor deposition
patent-application, September 2005
- Chakraborty, Arpan; Haskell, Benjamin A.; Keller, Stacia
- US Patent Application 11/123805; 20050214992
Surface treatment method and surface treatment device
patent-application, December 2005
- Ueda, Tetsuzo; Ueda, Daisuke
- US Patent Application 11/146036; 20050269577
Nitride single crystal and producing method thereof
patent-application, December 2005
- Uematsu, Koji; Nakahata, Seiji
- US Patent Application 10/866007; 20050277214
Gallium nitride materials and methods associated with the same
patent-application, December 2005
- Piner, Edwin Lanier; Roberts, John C.; Rajagopal, Pradeep
- US Patent Application 10/879703; 20050285141
Method and apparatus for producing large, single-crystals of aluminum nitride
patent-application, January 2006
- Schowalter, Leo J.; Slack, Glen A.; Rojo, J. Carlos
- US Patent Application 10/910162; 20060005763
High surface quality GaN wafer and method of fabricating same
patent-application, February 2006
- Xu, Xueping; Vaudo, Robert P.
- US Patent Application 11/213535; 20060029832
Substrate for epitaxy and method of preparing the same
patent-application, March 2006
- Dwilinski, Robert; Doradzinski, Roman; Garczynski, Jerzy
- US Patent Application 10/538407; 20060054075
Nitride-based light emitting heterostructure
patent-application, June 2006
- Gaska, Remigijus; Zhang, Jianping; Shur, Michael
- US Patent Application 11/292519; 20060118820
Compensating liquid delivery system and method
patent-application, August 2006
- Sage Jr., Burton H.
- US Patent Application 11/055643; 20060181695
Binary group III-nitride based high electron mobility transistors and methods of fabricating same
patent-application, November 2006
- Saxler, Adam William
- US Patent Application 11/118675; 20060244011
Bonded intermediate substrate and method of making same
patent-application, November 2006
- Pinnington, Thomas Henry; Zahler, James M.; Park, Young-Bae
- US Patent Application 11/408239; 20060255341
Method for manufacturing nitride-based semiconductor device
patent-application, December 2006
- Park, Hee Seok
- US Patent Application 11/448866; 20060281205
Polar surface preparation of nitride substrates
patent-application, December 2006
- Slack, Glen A.; Schujman, Sandra B.; Meyer, Nicholas R.
- US Patent Application 11/448595; 20060288929
Light emitting diodes with high light extraction and high reflectivity
patent-application, January 2007
- Beeson, Karl W.; Zimmerman, Scott M.; Livesay, William R.
- US Patent Application 11/389201; 20070018184
Photocrosslinked hydrogel surface coatings
patent-application, April 2007
- Huang, Wenxi; Agroskin, Yury; Boschetti, Egisto
- US Patent Application 10/546173; 20070082019
Method and apparatus for producing large, single-crystals of aluminum nitride
patent-application, May 2007
- Schowalter, Leo J.; Slack, Glen A.; Rojo, J. Carlos
- US Patent Application 11/431090; 20070101932
High light extraction efficiency light emitting diode (LED)
patent-application, May 2007
- DenBaars, Steven P.; Nakamura, Shuji; Masui, Hisashi
- US Patent Application 11/593268; 20070102721
Doped aluminum nitride crystals and methods of making them
patent-application, June 2007
- Slack, Glen A.; Schowalter, Leo J.
- US Patent Application 11/633667; 2007013116
Large aluminum nitride crystals with reduced defects and methods of making them
patent-application, June 2007
- Bondokov, Robert T.; Morgan, Kenneth; Slack, Glen A.
- US Patent Application 11/605192; 20070134827
Water purifier
patent-application, July 2007
- Wang, Shun-Chung; Lee, Ren-Guey
- US Patent Application 11/319457; 20070151905
Method of Fabricating Light Emitting Device and Thus-Fabricated Light Emitting Device
patent-application, September 2007
- Ikeda, Hitoshi; Suzuki, Kingo; Nakamura, Akio
- US Patent Application 11/587632; 20070224714
Methods for controllable doping of aluminum nitride bulk crystals
patent-application, October 2007
- Morgan, Kenneth E.; Schowalter, Leo J.; Slack, Glen A.
- US Patent Application 11/731790; 20070243653
Seeded growth process for preparing aluminum nitride single crystals
patent-application, November 2007
- Schlesser, Raoul; Noveski, Vladimir; Sitar, Zlatko
- US Patent Application 11/399713; 20070257333
Method and apparatus for producing large, single-crystals of aluminum nitride
patent-application, January 2008
- Schowalter, Leo J.; Slack, Glen A.; Rojo, J. Carlos
- US Patent Application 11/265909; 20080006200
LED PACKAGE WITH CONVERGING EXTRACTOR
patent-application, January 2008
- Thielen, James A.; Leatherdale, Catherine A.; Ouderkirk, Andrew J.
- US Patent Application 11/778385; 20080012034
Light Emitting Devices with Improved Light Extraction Efficiency
patent-application, January 2008
- Camras, Michael D.; Krames, Michael R.; Snyder, Wayne L.
- US Patent Application 11/868903; 20080023719
PULSED GROWTH OF CATALYST-FREE GROWITH OF GaN NANOWIRES AND APPLICATION IN GROUP III NITRIDE SEMICONDUCTOR BULK MATERIAL
patent-application, February 2008
- Hersee, Stephen D.; Wang, Xin; Sun, Xinyu
- US Patent Application 11/684264; 20080036038
Light emitting packages and methods of making same
patent-application, March 2008
- Reginelli, James; Aanegola, Srinath K.; Radkov, Emil
- US Patent Application 11/516533; 20080054280
Compound semiconductor modified surface by use of pulsed electron beam and ion implantation through a deposited metal layer
patent-application, April 2008
- Melas, Andreas A.
- US Patent Application 11/998961; 20080087984
Semiconductor Devices Having Low Threading Dislocations and Improved Light Extraction and Methods of Making the Same
patent-application, May 2008
- Bergmann, Michael John; Hansen, Jason; Emerson, David Todd
- US Patent Application 11/563712; 20080121910
Nitride light-emitting device
patent-application, May 2008
- Chua, Christopher L.; Yang, Zhihong; Johnson, Noble M.
- US Patent Application 11/516333; 20080123711
Spatial localization of light-generating portions in LEDs
patent-application, June 2008
- Pokrovskiy, Alexander L.; Lim, Michael; Nemchuk, Nikolay I.
- US Patent Application 11/636380; 20080135861
CHIP-SCALE METHODS FOR PACKAGING LIGHT EMITTING DEVICES AND CHIP-SCALE PACKAGED LIGHT EMITTING DEVICES
patent-application, June 2008
- Ibbetson, James; Keller, Bernd; Parikh, Primit
- US Patent Application 12/027313; 20080142817
LIGHT EMITTING DEVICES WITH AN ELECTRICALLY ACTIVE TOP REFLECTOR CONTACT
patent-application, June 2008
- Chua, Christopher L.; Teepe, Mark R.; Knollenberg, Clifford
- US Patent Application 11/962861; 20080144688
SEMICONDUCTOR LIGHT EMITTING DEVICE, LIGHT EMITTING MODULE, LIGHTING APPARATUS, DISPLAY ELEMENT AND MANUFACTURING METHOD OF SEMICONDUCTOR LIGHT EMITTING DEVICE
patent-application, June 2008
- Nagai, Hideo
- US Patent Application 11/969102; 20080149945
LIGHT-EMITTING APPARATUS AND METHOD OF PRODUCING THE SAME
patent-application, June 2008
- Amo, Takahiro; Nishijima, Shinji; Okada, Satoshi
- US Patent Application 11/963250; 20080149960
LIGHT-EMITTING DEVICES
patent-application, July 2008
- Erchak, Alexei A.; Lidorikis, Elefterios; Luo, Chiyan
- US Patent Application 11/944815; 20080157111
Self-luminous device
patent-application, July 2008
- Baba, Toshihiko; Morito, Kosuke
- US Patent Application 11/906074; 20080173887
DEFECT REDUCTION IN SEEDED ALUMINUM NITRIDE CRYSTAL GROWTH
patent-application, July 2008
- Bondokov, Robert T.; Morgan, Kenneth E.; Schowalter, Leo J.
- US Patent Application 12/015957; 20080182092
Thick Pseudomorphic Nitride Epitaxial Layers
patent-application, August 2008
- Schowalter, Leo J.; Smart, Joseph A.; Grandusky, James R.
- US Patent Application 12/020006; 20080187016
Methods of forming packaged semiconductor light emitting devices having front contacts by compression molding
patent-application, August 2008
- Medendorp, Nicholas W.
- US Patent Application 11/705233; 20080191225
SEMICONDUCTOR LIGHT-EMITTING DEVICE
patent-application, October 2008
- Hsu, Chih Peng; Ma, Chih Pang; Chan, Shih Hsiung
- US Patent Application 12/031473; 20080246047
Semiconductor light-emitting device, method for manufacturing the same, and light-emitting apparatus including the same
patent-application, October 2008
- Kususe, Takeshi; Sakamoto, Takahiko
- US Patent Application 12/155841; 20080251808
Light emitting diode chip
patent-application, October 2008
- Zimmerman, Scott M.; Beeson, Karl W.; Livesay, William R.
- US Patent Application 12/148888; 20080258165
Semiconductor Light Emitting Device, Illumination Module, Illumination Apparatus, Method For Manufacturing Semiconductor Light Emitting Device, and Method For Manufacturing Semiconductor Light Emitting Element
patent-application, January 2009
- Nagai, Hideo
- US Patent Application 11/720258; 20090008654
PATTERNED LIGHT EMITTING DEVICES
patent-application, January 2009
- Erchak, Alexei A.
- US Patent Application 12/173293; 20090014742
Group III nitride-based compound semiconductor light emitting device
patent-application, February 2009
- Saito, Yoshiki; Yajima, Takayoshi; Ushida, Yasuhisa
- US Patent Application 12/219455; 20090039373
DEEP-EUTECTIC MELT GROWTH OF NITRIDE CRYSTALS
patent-application, February 2009
- Slack, Glen A.; Schujman, Sandra B.
- US Patent Application 12/126334; 20090050050
WHITE LIGHT LED WITH MULTIPLE ENCAPSULATION LAYERS
patent-application, March 2009
- Yen, Jui-Kang; Chen, Yung-Wei; Liu, Tien-Min
- US Patent Application 11/851216; 20090065791
METHOD OF MAKING AN LED DEVICE HAVING A DOME LENS
patent-application, March 2009
- Thompson, D. Scott; Kecman, Fedja
- US Patent Application 11/851604; 20090065792
LIGHT EMITTING DEVICE
patent-application, March 2009
- Hoshina, Takaharu
- US Patent Application 12/278320; 20090078957
NITRIDE SEMICONDUCTOR ULTRAVIOLET LEDS WITH TUNNEL JUNCTIONS AND REFLECTIVE CONTACT
patent-application, April 2009
- Bour, David P.; Chua, Christopher L.
- US Patent Application 12/337475; 20090090932
LED with current confinement structure and surface roughening
patent-application, May 2009
- Denbaars, Steven P.; Nakamura, Shuji; Batres, Max
- US Patent Application 12/079486; 20090121246
HIGH LIGHT EXTRACTION EFFICIENCY LIGHT EMITTING DIODE (LED) USING GLASS PACKAGING
patent-application, May 2009
- DenBaars, Steven P.; Nakamura, Shuji; Masui, Hisashi
- US Patent Application 12/275136; 20090121250
Substrate-free light emitting diode chip
patent-application, June 2009
- Zimmerman, Scott M.; Beeson, Karl W.; Livesay, William R.
- US Patent Application 12/221304; 20090140279
LIGHT OUTPUT ENHANCED GALLIUM NITRIDE BASED THIN LIGHT EMITTING DIODE
patent-application, June 2009
- Sonoda, Junichi; Nakamura, Shuji; Iso, Kenji
- US Patent Application 12/325939; 20090141502
PROTECTION OF SIGE DURING ETCH AND CLEAN OPERATIONS
patent-application, June 2009
- Chakravarti, Ashima B.; Luo, Zhijiong; Mo, Renee
- US Patent Application 11/954802; 20090155969
NITRIDE SEMICONDUCTOR SUBSTRATE AND METHOD OF PRODUCING SAME
patent-application, June 2009
- Uematsu, Koji; Hirota, Ryu; Nakahata, Seiji
- US Patent Application 12/388983; 20090155989
LIGHT EMITTING DIODE STRUCTURE AND METHOD FOR FABRICATING THE SAME
patent-application, June 2009
- Lin, Hung-Cheng; Lee, Chia-Ming; Chyi, Jen-Inn
- US Patent Application 11/963558; 20090159910
LIGHT EMITTING DEVICE
patent-application, July 2009
- Yamada, Motokazu; Inobe, Mototaka; Izuno, Kunihiro
- US Patent Application 12/341189; 20090166657
LIGHT EMITTING DEVICES WITH HIGH EFFICIENCY PHOSPOR STRUCTURES
patent-application, July 2009
- Chakraborty, Arpan; Keller, Bernd
- US Patent Application 11/969508; 20090173958
Led with substrate modifications for enhanced light extraction and method of making same
patent-application, September 2009
- Batres, Max; Ibbetson, James; Li, Ting
- US Patent Application 12/384277; 20090233394
AlGaN SUBSTRATE AND PRODUCTION METHOD THEREOF
patent-application, September 2009
- Amano, Hiroshi; Bando, Akira
- US Patent Application 12/434916; 20090239357
LEDs using single crystalline phosphor and methods of fabricating same
patent-application, October 2009
- Chakraborty, Arpan
- US Patent Application 12/082444; 20090256163
SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR FABRICATING THE SAME
patent-application, October 2009
- Ueda, Tetsuzo
- US Patent Application 12/490200; 20090261372
SEMICONDUCTOR LIGHT EMITTING DEVICE
patent-application, October 2009
- Choi, Sung Min
- US Patent Application 12/428868; 20090267098
LIGHT-EMITTING DIODE AND METHOD FOR FABRICATION THEREOF
patent-application, November 2009
- Nabekura, Wataru; Takeuchi, Ryouichi
- US Patent Application 12/158914; 20090278148
NITRIDE SEMICONDUCTOR HETEROSTRUCTURES AND RELATED METHODS
patent-application, November 2009
- Schowalter, Leo J.; Smart, Joseph A.; Liu, Shiwen
- US Patent Application 11/503660; 20090283028
Light emitting elements, light emitting devices including light emitting elements and methods of manufacturing such light emitting elements and/or devices
patent-application, December 2009
- Kim, Yu-Sik; Lee, Seung-Jae
- US Patent Application 12/457177; 20090315054
LED WITH IMPROVED EXTERNAL LIGHT EXTRACTION EFFICIENCY
patent-application, December 2009
- LIU, WEN-HUANG; Dan, Chung-Che
- US Patent Application 12/146142; 20090321758
SEMICONDUCTOR LIGHT-EMITTING DEVICE
patent-application, December 2009
- Hattori, Yasushi; Saito, Shinji; Hiramatsu, Ryosuke
- US Patent Application 12/493585; 20090321771
LIGHT EMITTING DEVICE
patent-application, January 2010
- Lee, Jong Lam; Lee, Jae Ho; Yoon, Yeo Jin
- US Patent Application 12/568630; 20100006870
Diode having high brightness and method thereof
patent-application, January 2010
- Yoo, Myung Cheol
- US Patent Application 12/461681; 20100012956
HIGHLY EFFICIENT GALLIUM NITRIDE BASED LIGHT EMITTING DIODES VIA SURFACE ROUGHENING
patent-application, February 2010
- Fujii, Tetsuo; Gao, Yan; Hu, Evelyn L.
- US Patent Application 12/576122; 20100025717
BOND PAD DESIGN FOR ENHANCING LIGHT EXTRACTION FROM LED CHIPS
patent-application, February 2010
- Li, Ting
- US Patent Application 12/185031; 20100025719
NITRIDE SEMICONDUCTOR HETEROSTRUCTURES AND RELATED METHODS
patent-application, June 2010
- Schowalter, Leo J.; Smart, Joseph A.; Liu, Shiwen
- US Patent Application 12/617150; 20100135349
Doped Aluminum Nitride Crystals and Methods of Making Them
patent-application, July 2010
- Slack, Glen A.; Schowalter, Leo J.
- US Patent Application 12/642182; 20100187541
THICK PSEUDOMORPHIC NITRIDE EPITAXIAL LAYERS
patent-application, October 2010
- Grandusky, James R.; Schowalter, Leo J.; Gibb, Shawn R.
- US Patent Application 12/764584; 20100264460
In-line Fluid Treatment by UV Radiation
patent-application, December 2010
- Bettles, Timothy J.; Berger, Steven; Schujman, Sandra B.
- US Patent Application 12/813293; 20100314551
ALUMINUM NITRIDE BULK CRYSTALS HAVING HIGH TRANSPARENCY TO ULTRAVIOLET LIGHT AND METHODS OF FORMING THEM
patent-application, January 2011
- Schujman, Sandra B.; Rao, Shailaja P.; Bondokov, Robert T.
- US Patent Application 12/827507; 20110008621
LIGHT EMITTING DIODES WITH SMOOTH SURFACE FOR REFLECTIVE ELECTRODE
patent-application, January 2011
- Lin, Chao-Kun; Liu, Heng
- US Patent Application 12/834747; 20110008923
METHOD AND APPARATUS FOR PRODUCING LARGE, SINGLE-CRYSTALS OF ALUMINUM NITRIDE
patent-application, January 2011
- Schowalter, Leo J.; Slack, Glen A.; Rojo, J. Carlos
- US Patent Application 12/841350; 20110011332
GROWTH OF LARGE ALUMINUM NITRIDE SINGLE CRYSTALS WITH THERMAL-GRADIENT CONTROL
patent-application, January 2012
- Bondokov, Robert T.; Rao, Shailaja P.; Gibb, Shawn Robert
- US Patent Application 13/173213; 20120000414
POLYCRYSTALLINE ALUMINUM NITRIDE MATERIAL AND METHOD OF PRODUCTION THEREOF
patent-application, January 2012
- Moody, Baxter; Dalmau, Rafael; Henshall, David
- US Patent Application 13/185544; 20120021175
THICK PSEUDOMORPHIC NITRIDE EPITAXIAL LAYERS
patent-application, May 2012
- Grandusky, James R.; Schowalter, Leo J.; Gibb, Shawn R.
- US Patent Application 13/298570; 20120104355
P-CONTACT AND LIGHT-EMITTING DIODE FOR THE ULTRAVIOLET SPECTRAL RANGE
patent-application, June 2012
- Kneissl, Michael; Weyers, Markus; Einfeldt, Sven
- US Patent Application 13/384208; 20120146047
LIGHT EMITTING DEVICES, SYSTEMS, AND METHODS OF MANUFACTURING
patent-application, January 2013
- Chen, Wenxin; Zhong, Zhibai; Leung, Charles Siu Huen
- US Patent Application 13/624937; 20130026525
ULTRAVIOLET LIGHT EMITTING DEVICES HAVING ENHANCED LIGHT EXTRACTION
patent-application, April 2013
- Northrup, John E.; Chua, Christopher L.; Kneissl, Michael
- US Patent Application 13/328783; 20130082237
ULTRAVIOLET LIGHT EMITTING DEVICE INCORPORTING OPTICALLY ABSORBING LAYERS
patent-application, April 2013
- Chua, Christopher L.
- US Patent Application 13/096988; 20130099141
LARGE ALUMINUM NITRIDE CRYSTALS WITH REDUCED DEFECTS AND METHODS OF MAKING THEM
patent-application, June 2013
- Bondokov, Robert T.; Morgan, Kenneth E.; Slack, Glen A.
- US Patent Application 13/706966; 20130152852
DEFECT REDUCTION IN SEEDED ALUMINUM NITRIDE CRYSTAL GROWTH
patent-application, June 2013
- Bondokov, Robert T.; Morgan, Kenneth E.; Schowalter, Leo
- US Patent Application 13/669630; 20130157442
METHOD AND APPARATUS FOR PRODUCING LARGE, SINGLE-CRYSTALS OF ALUMINUM NITRIDE
patent-application, March 2014
- Schowalter, Leo; Slack, Glen A.; Rojo, Juan Carlos
- US Patent Application 13/974710; 20140061666
LARGE ALUMINUM NITRIDE CRYSTALS WITH REDUCED DEFECTS AND METHODS OF MAKING THEM
patent-application, April 2014
- Bondokov, Robert; Morgan, Kenneth E.; Slack, Glen A.
- US Patent Application 14/051566; 20140093671
PHOTON EXTRACTION FROM NITRIDE ULTRAVIOLET LIGHT-EMITTING DEVICES
patent-application, July 2014
- Schowalter, Leo J.; Chen, Jianfeng; Grandusky, James R.
- US Patent Application 13/553093; 20140203311
DOPED ALUMINUM NITRIDE CRYSTALS AND METHODS OF MAKING THEM
patent-application, August 2014
- Slack, Glen A.; Schowalter, Leo J.
- US Patent Application 14/225999; 20140231725
PSEUDOMORPHIC ELECTRONIC AND OPTOELECTRONIC DEVICES HAVING PLANAR CONTACTS
patent-application, September 2014
- Grandusky, James R.; Schowalter, Leo J.; Jamil, Muhammad
- US Patent Application 14/208379; 20140264263
DEFECT REDUCTION IN SEEDED ALUMINUM NITRIDE CRYSTAL GROWTH
patent-application, January 2015
- Bondokov, Robert T.; Morgan, Kenneth E.; Schowalter, Leo J.
- US Patent Application 14/458861; 20150020731
METHOD AND APPARATUS FOR PRODUCING LARGE, SINGLE-CRYSTALS OF ALUMINUM NITRIDE
patent-application, March 2015
- Schowalter, Leo; Slack, Glen A.; Rojo, Juan Carlos
- US Patent Application 14/520615; 20150079329
Growth of flat p-GaN contact layer by pulse flow method for high light-extraction AlGaN deep-UV LEDs with Al-based electrode
journal, February 2012
- Akiba, Masahiro; Hirayama, Hideki; Tomita, Yuji
- physica status solidi (c), Vol. 9, Issue 3-4, p. 806-809
Ir/Ag reflector for high-performance GaN-based near UV light emitting diodes
journal, August 2006
- Ban, Keun-Yong; Hong, Hyun-Gi; Noh, Do-Young
- Materials Science and Engineering: B, Vol. 133, Issue 1-3, p. 26-29
Structural and optical properties of near-UV LEDs grown on V-grooved sapphire substrates fabricated by wet etching
journal, January 2007
- Cheong, H. S.; Na, M. G.; Choi, Y. J.
- Journal of Crystal Growth, Vol. 298, p. 699-702
Efficiency enhancement of UV/blue light emitting diodes via nanoscaled epitaxial lateral overgrowth of GaN on a SiO2 nanorod-array patterned sapphire substrate
journal, November 2008
- Chiu, C. H.; Li, Zhen-Yu; Chao, C. L.
- Journal of Crystal Growth, Vol. 310, Issue 23, p. 5170-5174
Ultraviolet electroluminescence from ordered ZnO nanorod array/p-GaN light emitting diodes
journal, April 2012
- Dong, J. J.; Zhang, X. W.; Yin, Z. G.
- Applied Physics Letters, Vol. 100, Issue 17, Article No. 171109
Fabrication of moth-eye structure on p-GaN layer of GaN-based LEDs for improvement of light extraction
journal, July 2009
- Hong, Eun-Ju; Byeon, Kyeong-Jae; Park, Hyoungwon
- Materials Science and Engineering: B, Vol. 163, Issue 3, p. 170-173
Optimizing textured structures possessing both optical gradient and diffraction properties to increase the extraction efficiency of light-emitting diodes
journal, October 2012
- Hsu, Chan-Wei; Lee, Yang-Chun; Chen, Hsuen-Li
- Photonics and Nanostructures - Fundamentals and Applications, Vol. 10, Issue 4, p. 523-533
Improvement of light extraction efficiency of UV-LED grown on low-dislocation-density AlGaN
journal, November 2003
- Iwaya, M.; Takanami, S.; Miyazaki, A.
- physica status solidi (a), Vol. 200, Issue 1, p. 110-113
Enhancement of light extraction efficiency of ultraviolet light emitting diodes by patterning of SiO2 nanosphere arrays
journal, February 2009
- Kim, B. J.; Jung, H.; Shin, J.
- Thin Solid Films, Vol. 517, Issue 8, p. 2742-2744
Light extraction analysis of GaN-based light-emitting diodes with surface texture and/or patterned substrate
journal, January 2007
- Lee, Tsung-Xian; Gao, Ko-Fon; Chien, Wei-Ting
- Optics Express, Vol. 15, Issue 11
Enhancement of light extraction in ultraviolet light-emitting diodes using nanopixel contact design with Al reflector
journal, February 2010
- Lobo, N.; Rodriguez, H.; Knauer, A.
- Applied Physics Letters, Vol. 96, Issue 8
Enhancement of (AlGaIn)N near-UV LED efficiency using freestanding GaN substrate
journal, May 2008
- Maier, M.; Köhler, K.; Kunzer, M.
- physica status solidi (c), Vol. 5, Issue 6, p. 2133-2135
Recent Developments in Nitride Chemistry
journal, October 1998
- Niewa, R.; DiSalvo, F. J.
- Chemistry of Materials, Vol. 10, Issue 10, p. 2733-2752
340–350 nm GaN-free UV-LEDs
journal, November 2003
- Nishida, T.; Ban, T.; Kobayashi, N.
- physica status solidi (a), Vol. 200, Issue 1, p. 106-109
AlGaN-based ultraviolet light-emitting diodes grown on bulk AlN substrates
journal, February 2004
- Nishida, Toshio; Makimoto, Toshiki; Saito, Hisao
- Applied Physics Letters, Vol. 84, Issue 6
Study on photoluminescence of GaN-based UV-LEDs with refractive index gradient polymeric nanopatterns
journal, July 2011
- Park, Manshik; Guiduk, Yu; Shin, Kyusoon
- Journal of Crystal Growth, Vol. 326, Issue 1, p. 28-32
Very low dislocation density AlN substrates for device applications
conference, February 2006
- Schujman, Sandra B.; Schowalter, Leo J.; Liu, Wayne
- Gallium Nitride Materials and Devices, Vol. 6121
Enhanced light output power of near UV light emitting diodes with graphene / indium tin oxide nanodot nodes for transparent and current spreading electrode
journal, January 2011
- Seo, Tae Hoon; Lee, Kang Jea; Park, Ah Hyun
- Optics Express, Vol. 19, Issue 23
III-nitride blue and UV photonic-crystal light-emitting diodes
conference, October 2004
- Shakya, Jagat B.; Kim, Kyoung Hoon; Oder, Tom N.
- Fourth International Conference on Solid State Lighting, Vol. 5530
Light Extraction Methods in Light-Emitting Diodes
conference, January 2011
- Wierer, Jonathan J.
- CLEO: Science and Innovations, CLEO:2011 - Laser Applications to Photonic Applications
Growth of nitride crystals, BN, AlN and GaN by using a Na flux
journal, April 2000
- Yano, M.; Okamoto, M.; Yap, Y. K.
- Diamond and Related Materials, Vol. 9, Issue 3-6, p. 512-515
Enhancement of light extraction from light emitting diodes
journal, February 2011
- Zhmakin, A. I.
- Physics Reports, Vol. 498, Issue 4-5, p. 189-241
Growth and design of deep-UV (240–290nm) light emitting diodes using AlGaN alloys
journal, December 2004
- Allerman, A. A.; Crawford, M. H.; Fischer, A. J.
- Journal of Crystal Growth, Vol. 272, Issue 1-4, p. 227-241
Improved dc characteristics of AlGaN/GaN high-electron-mobility transistors on AlN/sapphire templates
journal, August 2002
- Arulkumaran, S.; Sakai, M.; Egawa, T.
- Applied Physics Letters, Vol. 81, Issue 6
Sublimation growth and characterization of bulk aluminum nitride single crystals
journal, August 1997
- Balkaş, Cengiz M.; Sitar, Zlatko; Zheleva, Tsvetanka
- Journal of Crystal Growth, Vol. 179, Issue 3-4, p. 363-370
Characterization of bulk AlN with low oxygen content
journal, September 2004
- Bickermann, M.; Epelbaum, B. M.; Winnacker, A.
- Journal of Crystal Growth, Vol. 269, Issue 2-4, p. 432-442
Milliwatt power AlGaN quantum well deep ultraviolet light emitting diodes
journal, November 2003
- Chitnis, A.; Adivarahan, V.; Zhang, J. P.
- physica status solidi (a), Vol. 200, Issue 1, p. 99-101
Mixing Rocksalt and Wurtzite Structure Binary Nitrides to Form Novel Ternary Alloys: ScGaN and MnGaN
journal, January 2003
- Constantin, Costel; Al-Brithen, Hamad; Haider, Muhammad B.
- MRS Proceedings, Vol. 799
On the preparation, optical properties and electrical behaviour of aluminium nitride
journal, April 1967
- Cox, G. A.; Cummins, D. O.; Kawabe, K.
- Journal of Physics and Chemistry of Solids, Vol. 28, Issue 4, p. 543-548
Phase equilibria pertinent to the growth of cubic boron nitride
journal, May 1972
- DeVries, R. C.; Fleischer, J. F.
- Journal of Crystal Growth, Vol. 13-14, p. 88-92
The estimation of maximum growth rate for aluminium nitride crystals grown by direct sublimation
journal, November 1992
- Dryburgh, P. M.
- Journal of Crystal Growth, Vol. 125, Issue 1-2, p. 65-68
Sublimation Growth of Bulk AlN Crystals: Materials Compatibility and Crystal Quality
journal, January 2002
- Epelbaum, Boris M.; Hofmann, Dieter; Bickermann, Matthias
- Materials Science Forum, Vol. 389-393, p. 1445-1448
Electrical conductivity of materials from mixed aluminum and silicon nitrides
journal, November 1970
- Gorbatov, A. G.; Kamyshov, V. M.
- Soviet Powder Metallurgy and Metal Ceramics, Vol. 9, Issue 11, p. 917-920
Photoluminescence Intensity and Spectral Distribution of GaN Films on SiC Substrates — The Dependence on Dislocation Density and Structure
journal, November 1999
- Hacke, P.; Kuramata, A.; Domen, K.
- physica status solidi (b), Vol. 216, Issue 1, p. 639-644
Highly Si-doped AlN grown by plasma-assisted molecular-beam epitaxy
journal, May 2005
- Hermann, M.; Furtmayr, F.; Bergmaier, A.
- Applied Physics Letters, Vol. 86, Issue 19, Article No. 192108
The luminescence properties of AlN with manganese and rare earth activators under ultraviolet and cathode-ray excitation
journal, January 1970
- Karel, F.; Pastrňák, J.
- Czechoslovak Journal of Physics B, Vol. 20, Issue 1, p. 46-55
Sublimation Growth of AlN in Vacuum and in a Gas Atmosphere
journal, November 1999
- Karpov, S. Yu.; Zimina, D. V.; Makarov, Yu. N.
- physica status solidi (a), Vol. 176, Issue 1, p. 435-438
The BeO — MgO system
journal, January 1964
- Kordis, J.
- Journal of Nuclear Materials, Vol. 14, p. 322-325
A Global Growth Rate Model for Aluminum Nitride Sublimation
journal, January 2002
- Liu, Lianghong; Edgar, J. H.
- Journal of The Electrochemical Society, Vol. 149, Issue 1, p. G12-G15
Characterization of Aluminum Nitride Crystals Grown by Sublimation
journal, December 2001
- Liu, L.; Zhuang, D.; Liu, B.
- physica status solidi (a), Vol. 188, Issue 2, p. 769-774
Sublimation growth of AlN bulk crystals in Ta crucibles
journal, July 2005
- Mokhov, E. N.; Avdeev, O. V.; Barash, I. S.
- Journal of Crystal Growth, Vol. 281, Issue 1, p. 93-100
Effects of Al composition on luminescence properties of europium implanted AlxGa1−xN (0 ≤ x ≤ 1)
journal, December 2003
- Nakanishi, Y.; Wakahara, A.; Okada, H.
- physica status solidi (c), Vol. 0, Issue 7, p. 2623-2626
Mass transfer in AlN crystal growth at high temperatures
journal, March 2004
- Noveski, V.; Schlesser, R.; Mahajan, S.
- Journal of Crystal Growth, Vol. 264, Issue 1-3, p. 369-378
Determination of the critical layer thickness in the InGaN/GaN heterostructures
journal, November 1999
- Parker, C. A.; Roberts, J. C.; Bedair, S. M.
- Applied Physics Letters, Vol. 75, Issue 18
Synchrotron white beam topography characterization of physical vapor transport grown AlN and ammonothermal GaN
journal, December 2002
- Raghothamachar, Balaji; Vetter, William M.; Dudley, Michael
- Journal of Crystal Growth, Vol. 246, Issue 3-4, p. 271-280
X-ray characterization of bulk AIN single crystals grown by the sublimation technique
journal, March 2003
- Raghothamachar, B.; Dudley, M.; Rojo, J. C.
- Journal of Crystal Growth, Vol. 250, Issue 1-2, p. 244-250
Growth and characterization of epitaxial layers on aluminum nitride substrates prepared from bulk, single crystals
journal, May 2002
- Carlos Rojo, J.; Schowalter, Leo J.; Gaska, Remis
- Journal of Crystal Growth, Vol. 240, Issue 3-4, p. 508-512
Progress in the Preparation of Aluminum Nitride Substrates from Bulk Crystals
journal, January 2002
- Rojo, J. C.; Schowalter, L. J.; Slack, Glen
- MRS Proceedings, Vol. 722
Report on the growth of bulk aluminum nitride and subsequent substrate preparation
journal, October 2001
- Carlos Rojo, J.; Slack, Glen A.; Morgan, Kenneth
- Journal of Crystal Growth, Vol. 231, Issue 3, p. 317-321
Growth of AlN bulk crystals from the vapor phase
journal, January 2001
- Schlesser, Raoul; Dalmau, Rafael; Yakimova, Rositza
- MRS Proceedings, Vol. 693
Seeded growth of AlN bulk single crystals by sublimation
journal, June 2002
- Schlesser, R.; Dalmau, R.; Sitar, Z.
- Journal of Crystal Growth, Vol. 241, Issue 4, p. 416-420
Fabrication of native, single-crystal AlN substrates
journal, December 2003
- Schowalter, L. J.; Slack, G. A.; Whitlock, J. B.
- physica status solidi (c), Vol. 0, Issue 7, p. 1997-2000
On mechanisms of sublimation growth of AlN bulk crystals
journal, April 2000
- Segal, A. S.; Karpov, S. Yu.; Makarov, Yu. N.
- Journal of Crystal Growth, Vol. 211, Issue 1-4, p. 68-72
Excitonic structure of bulk AlN from optical reflectivity and cathodoluminescence measurements
journal, January 2005
- Silveira, E.; Freitas, J. A.; Glembocki, O. J.
- Physical Review B, Vol. 71, Issue 4
Physical vapor transport growth of large AlN crystals
journal, March 2003
- Singh, N. B.; Berghmans, A.; Zhang, H.
- Journal of Crystal Growth, Vol. 250, Issue 1-2, p. 107-112
Chemical Mechanical Polishing of Gallium Nitride
journal, January 2002
- Tavernier, P. R.; Margalith, T.; Coldren, L. A.
- Electrochemical and Solid-State Letters, Vol. 5, Issue 8, p. G61-G64
Dislocations in GaN-Based Laser Diodes on Epitaxial Lateral Overgrown GaN Layers
journal, November 2001
- Tomiya, S.; Nakajima, H.; Funato, K.
- physica status solidi (a), Vol. 188, Issue 1, p. 69-72
-center formation in wurtzite and zinc-blende
journal, January 1998
- Van de Walle, Chris G.
- Physical Review B, Vol. 57, Issue 4
Comparison of various buffer schemes to grow GaN on large-area Si(111) substrates using metal-organic chemical-vapor deposition
journal, May 2003
- Venugopal, R.; Wan, J.; Melloch, M.
- Journal of Electronic Materials, Vol. 32, Issue 5, p. 371-374
Synthesis of the Cubic Form of Boron Nitride
journal, March 1961
- Wentorf, R. H.
- The Journal of Chemical Physics, Vol. 34, Issue 3, p. 809-812
Preparation of GaN Single Crystals Using a Na Flux
journal, February 1997
- Yamane, Hisanori; Shimada, Masahiko; Clarke, Simon J.
- Chemistry of Materials, Vol. 9, Issue 2, p. 413-416
-behavior of Si in AlN
journal, June 2000
- Zeisel, R.; Bayerl, M. W.; Goennenwein, S. T. B.
- Physical Review B, Vol. 61, Issue 24
Seeded growth of AlN single crystals by physical vapor transport
journal, January 2006
- Zhuang, D.; Herro, Z. G.; Schlesser, R.
- Journal of Crystal Growth, Vol. 287, Issue 2, p. 372-375
Crucible materials for growth of aluminum nitride crystals
journal, July 2005
- Schlesser, R.; Dalmau, R.; Zhuang, D.
- Journal of Crystal Growth, Vol. 281, Issue 1, p. 75-80
Native oxide and hydroxides and their implications for bulk AlN crystal growth
journal, August 2008
- Edgar, J. H.; Du, L.; Nyakiti, L.
- Journal of Crystal Growth, Vol. 310, Issue 17, p. 4002-4006
Properties of Bulk AlN grown by thermodecomposition of AlCl3⋅NH3
journal, September 2003
- Freitas, J. A.; Braga, G. C. B.; Silveira, E.
- Applied Physics Letters, Vol. 83, Issue 13, p. 2584-2586