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Matched Legal Cases: ['art 2', 'Application No. 2003303485', 'Application No. 2', 'Application No. 2', 'Application No. 02803675', 'Application No. 02806723', 'Application No. 02806723', 'Application No. 02806723', 'Application No. 02806723', 'Application No. 03808366', 'Application No. 06844804', 'Application No. 2003', 'Application No. 2003', 'Application No. 2003', 'Application No. 2003', 'Application No. 2004', 'Application No. 2004', 'Application No. 91137050', 'Application No. 03808366']

Patent US8123859 - Method and apparatus for producing large, single-crystals of aluminum nitride - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA method and apparatus for producing bulk single crystals of AlN having low dislocation densities of about 10,000 cm−2 or less includes a crystal growth enclosure with Al and N2 source material therein, capable of forming bulk crystals. The apparatus maintains the N2 partial pressure at greater than...http://www.google.com/patents/US8123859?utm_source=gb-gplus-sharePatent US8123859 - Method and apparatus for producing large, single-crystals of aluminum nitrideAdvanced Patent SearchPublication numberUS8123859 B2Publication typeGrantApplication numberUS 12/841,350Publication dateFeb 28, 2012Filing dateJul 22, 2010Priority dateDec 24, 2001Also published asUS7776153, US20060005763, US20080006200, US20110011332Publication number12841350, 841350, US 8123859 B2, US 8123859B2, US-B2-8123859, US8123859 B2, US8123859B2InventorsLeo J. Schowalter, Glen A. Slack, J. Carlos RojoOriginal AssigneeCrystal Is, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (100), Non-Patent Citations (171), Referenced by (1), Classifications (18), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetMethod and apparatus for producing large, single-crystals of aluminum nitrideUS 8123859 B2Abstract A method and apparatus for producing bulk single crystals of AlN having low dislocation densities of about 10,000 cm−2 or less includes a crystal growth enclosure with Al and N2 source material therein, capable of forming bulk crystals. The apparatus maintains the N2 partial pressure at greater than stoichiometric pressure relative to the Al within the crystal growth enclosure, while maintaining the total vapor pressure in the crystal growth enclosure at super-atmospheric pressure. At least one nucleation site is provided in the crystal growth enclosure, and provision is made for cooling the nucleation site relative to other locations in the crystal growth enclosure. The Al and N2 vapor is then deposited to grow single crystalline low dislocation density AlN at the nucleation site. High efficiency ultraviolet light emitting diodes and ultraviolet laser diodes are fabricated on low defect density AlN substrates, which are cut from the low dislocation density AlN crystals. Bulk crystals of ZnO may also be produced using the method.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS3531245Apr 1, 1968Sep 29, 1970Du PontMagnesium-aluminum nitridesUS3600701Mar 14, 1968Aug 17, 1971Gen ElectricSignal generator for producing a set of signals at baseband frequency and with adjustable phase slopeUS3603414Jan 30, 1970Sep 7, 1971Stebley Frank EInsert for drilling unitUS3607014Dec 9, 1968Sep 21, 1971Dow Chemical CoMethod for preparing aluminum nitride and metal fluoride single crystalsUS3634149Oct 25, 1967Jan 11, 1972Philips CorpMethod of manufacturing aluminium nitride crystals for semiconductor devicesUS3768983Nov 3, 1971Oct 30, 1973North American RockwellSingle crystal beryllium oxide growth from calcium oxide-beryllium oxide meltsUS3903357Dec 6, 1971Sep 2, 1975Westinghouse Electric CorpAdaptive gate video gray level measurement and trackerUS3933573Mar 27, 1975Jan 20, 1976The United States Of America As Represented By The Secretary Of The Air ForceAluminum nitride single crystal growth from a molten mixture with calcium nitrideUS4008851Jan 16, 1976Feb 22, 1977Curt G. Joa, Inc.Adhesive tape bag closureUS4088515Apr 4, 1975May 9, 1978International Business Machines CorporationMethod of making semiconductor superlattices free of misfit dislocationsUS4234554Jul 28, 1978Nov 18, 1980Max-Planck-Gesellschaft Zur Forderung Der Wissenschaften E.V.Stable crystalline lithium nitride and process for its preparationUS4547471Nov 18, 1983Oct 15, 1985General Electric CompanyHigh thermal conductivity aluminum nitride ceramic bodyUS5087949Mar 5, 1991Feb 11, 1992Hewlett-Packard CompanyLight-emitting diode with diagonal facesUS5292487Mar 31, 1992Mar 8, 1994Sumitomo Electric Industries, Ltd.Czochralski method using a member for intercepting radiation from raw material molten solution and apparatus thereforUS5494861Oct 25, 1994Feb 27, 1996New Japan Radio Co., Ltd.Method for heat-treating a compound semiconductorUS5520785Jul 25, 1994May 28, 1996Motorola, Inc.Method for enhancing aluminum nitrideUS5525320Jul 11, 1994Jun 11, 1996University Of CincinnatiProcess for aluminum nitride powder productionUS5670798Mar 29, 1995Sep 23, 1997North Carolina State UniversityIntegrated heterostructures of Group III-V nitride semiconductor materials including epitaxial ohmic contact non-nitride buffer layer and methods of fabricating sameUS5858085May 28, 1997Jan 12, 1999Mitsubishi Materials CorporationMethod for growing a semiconductor single-crystalUS5858086Oct 17, 1996Jan 12, 1999Hunter; Charles EricGrowth of bulk single crystals of aluminum nitrideUS5868837Jan 13, 1998Feb 9, 1999Cornell Research Foundation, Inc.Low temperature method of preparing GaN single crystalsUS5909036Jun 24, 1997Jun 1, 1999Sumitomo Electric Industries, Ltd.Group III-V nitride semiconductor deviceUS5924874Jan 28, 1998Jul 20, 1999Ando Electric Co., Ltd.IC socketUS5954874Oct 6, 1997Sep 21, 1999Hunter; Charles EricGrowth of bulk single crystals of aluminum nitride from a meltUS5972109Jul 7, 1998Oct 26, 1999Hunter; Charles EricGrowth of bulk single crystals of aluminum nitrideUS5981980Apr 18, 1997Nov 9, 1999Sony CorporationSemiconductor laminating structureUS6000174Jun 9, 1998Dec 14, 1999Kotobuki CorporationRetractable stairs-like standUS6001748Jun 4, 1997Dec 14, 1999Sumitomo Electric Industries, Ltd.Single crystal of nitride and process for preparing the sameUS6006620Dec 1, 1997Dec 28, 1999Chrysler CorporationAutomated manual transmission controllerUS6045612Jul 7, 1998Apr 4, 2000Cree, Inc.Growth of bulk single crystals of aluminum nitrideUS6048813Oct 9, 1998Apr 11, 2000Cree, Inc.Simulated diamond gemstones formed of aluminum nitride and aluminum nitride: silicon carbide alloysUS6063185Oct 9, 1998May 16, 2000Cree, Inc.Production of bulk single crystals of aluminum nitride, silicon carbide and aluminum nitride: silicon carbide alloyUS6066205Jul 27, 1999May 23, 2000Cree, Inc.Growth of bulk single crystals of aluminum nitride from a meltUS6086672Oct 9, 1998Jul 11, 2000Cree, Inc.Growth of bulk single crystals of aluminum nitride: silicon carbide alloysUS6091085Feb 19, 1998Jul 18, 2000Agilent Technologies, Inc.GaN LEDs with improved output coupling efficiencyUS6187089Feb 5, 1999Feb 13, 2001Memc Electronic Materials, Inc.Tungsten doped crucible and method for preparing sameUS6211089Sep 21, 1999Apr 3, 2001Lg Electronics Inc.Method for fabricating GaN substrateUS6270569Jun 11, 1998Aug 7, 2001Hitachi Cable Ltd.Method of fabricating nitride crystal, mixture, liquid phase growth method, nitride crystal, nitride crystal powders, and vapor phase growth methodUS6296956Jul 27, 1999Oct 2, 2001Cree, Inc.Bulk single crystals of aluminum nitrideUS6398867Oct 6, 1999Jun 4, 2002General Electric CompanyCrystalline gallium nitride and method for forming crystalline gallium nitrideUS6404125Oct 20, 1999Jun 11, 2002Sarnoff CorporationMethod and apparatus for performing wavelength-conversion using phosphors with light emitting diodesUS6447604Jun 28, 2000Sep 10, 2002Advanced Technology Materials, Inc.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 devicesUS6468347Sep 27, 2000Oct 22, 2002Sumitomo Electric Industries Ltd.Method of growing single crystal GaN, method of making single crystal GaN substrate and single crystal GaN substrateUS6515308Dec 21, 2001Feb 4, 2003Xerox CorporationNitride-based VCSEL or light emitting diode with p-n tunnel junction current injectionUS6592663Jun 8, 2000Jul 15, 2003Ricoh Company Ltd.Production of a GaN bulk crystal substrate and a semiconductor device formed on a GaN bulk crystal substrateUS6596079Mar 13, 2000Jul 22, 2003Advanced Technology Materials, Inc.III-V nitride substrate boule and method of making and using the sameUS6719843Sep 20, 2002Apr 13, 2004Crystal Is, Inc.Powder metallurgy tungsten crucible for aluminum nitride crystal growthUS6770135 *Dec 20, 2002Aug 3, 2004Crystal Is, Inc.Method and apparatus for producing large, single-crystals of aluminum nitrideUS6777717Sep 5, 2001Aug 17, 2004Gelcore, LlcLED reflector for improved light extractionUS6791119Jan 25, 2002Sep 14, 2004Cree, Inc.Light emitting diodes including modifications for light extractionUS6831302Nov 26, 2003Dec 14, 2004Luminus Devices, Inc.Light emitting devices with improved extraction efficiencyUS6840431Sep 12, 2000Jan 11, 2005Honeywell International Inc.Methods of bonding two aluminum-comprising masses to one anotherUS6936357Jan 31, 2003Aug 30, 2005Technologies And Devices International, Inc.Bulk GaN and ALGaN single crystalsUS6995402Oct 3, 2003Feb 7, 2006Lumileds Lighting, U.S., LlcIntegrated reflector cup for a light emitting device mountUS7026659Jun 3, 2004Apr 11, 2006Cree, Inc.Light emitting diodes including pedestalsUS7037738Jan 17, 2003May 2, 2006Kabushiki Kaisha ToshibaMethod of manufacturing a semiconductor light-emitting elementUS7037838Nov 20, 2002May 2, 2006Rensselaer Polytechnic InstituteMethod for polishing a substrate surfaceUS7056383Feb 13, 2004Jun 6, 2006The Fox Group, Inc.Tantalum based crucibleUS7063741Mar 27, 2002Jun 20, 2006General Electric CompanyHigh pressure high temperature growth of crystalline group III metal nitridesUS7087112Dec 2, 2003Aug 8, 2006Crystal Is, Inc.Nitride ceramics to mount aluminum nitride seed for sublimation growthUS7125734Mar 9, 2005Oct 24, 2006Gelcore, LlcIncreased light extraction from a nitride LEDUS7186580Jan 11, 2005Mar 6, 2007Semileds CorporationLight emitting diodes (LEDs) with improved light extraction by rougheningUS7211146Apr 12, 2004May 1, 2007Crystal Is, Inc.Powder metallurgy crucible for aluminum nitride crystal growthUS7211831Nov 26, 2003May 1, 2007Luminus Devices, Inc.Light emitting device with patterned surfacesUS7250637Mar 30, 2006Jul 31, 2007Matsushita Electric Industrial Co., Ltd.Card type LED illumination sourceUS7274043Jun 18, 2004Sep 25, 2007Luminus Devices, Inc.Light emitting diode systemsUS7288152Jul 2, 2004Oct 30, 2007Matsushita Electric Industrial Co., Ltd.Method of manufacturing GaN crystals and GaN crystal substrate, GaN crystals and GaN crystal substrate obtained by the method, and semiconductor device including the sameUS7420218Mar 16, 2005Sep 2, 2008Matsushita Electric Industrial Co., Ltd.Nitride based LED with a p-type injection regionUS7420222Aug 21, 2007Sep 2, 2008Cree, Inc.Light emitting diodes including transparent oxide layersUS7439552Jul 25, 2006Oct 21, 2008Matsushita Electric Industrial Co., Ltd.Semiconductor light-emitting device and method for fabricating the sameUS7476910Sep 8, 2005Jan 13, 2009Kabushiki Kaisha ToshibaSemiconductor light emitting device and method for manufacturing the sameUS7518158Nov 12, 2004Apr 14, 2009Cree, Inc.Semiconductor light emitting devices and submountsUS7554128Jun 28, 2005Jun 30, 2009Semiconductor Energy Laboratory Co., Ltd.Light-emitting apparatusUS7631986Oct 31, 2007Dec 15, 2009Koninklijke Philips Electronics, N.V.Lighting device packageUS7638346Aug 14, 2006Dec 29, 2009Crystal Is, Inc.Nitride semiconductor heterostructures and related methodsUS7641735Dec 4, 2006Jan 5, 2010Crystal Is, Inc.Doped aluminum nitride crystals and methods of making themUS7678195Apr 6, 2006Mar 16, 2010North Carolina State UniversitySeeded growth process for preparing aluminum nitride single crystalsUS7776153Nov 3, 2005Aug 17, 2010Crystal Is, Inc.Method and apparatus for producing large, single-crystals of aluminum nitrideUS20010000209Dec 6, 2000Apr 12, 2001Krames Michael R.Led having angled sides for increased side light extractionUS20010024871Jan 31, 2001Sep 27, 2001Fuji Xerox Co.Semiconductor device and method and apparatus for manufacturing semiconductor deviceUS20010051433Nov 4, 1999Dec 13, 2001Francis Alicia F.Use of csoh in a dielectric cmp slurryUS20020170490Feb 4, 2002Nov 21, 2002The Fox Group, Inc.Method and apparatus for growing aluminum nitride monocrystalsUS20030047816Sep 4, 2002Mar 13, 2003Rensselaer Polytechnic InstitutePassivated nanoparticles, method of fabrication thereof, and devices incorporating nanoparticlesUS20030160254Jan 24, 2003Aug 28, 2003Henrichs Joseph ReidFCSEL that frequency doubles its output emissions using sum-frequency generationUS20030168003Dec 20, 2002Sep 11, 2003Schowalter Leo J.Method and apparatus for producing large, single-crystals of aluminum nitrideUS20030213964Dec 6, 2002Nov 20, 2003Flynn Jeffrey S.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 sameUS20030216011Jun 9, 2003Nov 20, 2003Nichia Chemical Industries Ltd.Light-emitting gallium nitride-based compound semiconductor deviceUS20040130002Aug 25, 2003Jul 8, 2004Nitronex CorporationGallium nitride material devices and methods of forming the sameUS20040187766Nov 20, 2003Sep 30, 2004Fabrice LetertreMethod of fabricating monocrystalline crystalsUS20040206978May 5, 2004Oct 21, 2004Saxler Adam WilliamStrain compensated semiconductor structuresUS20040213309Dec 19, 2001Oct 28, 2004Hiroshi AmanoNitride semiconductor layer structure and a nitride semiconductor laser incorporating a portion of sameUS20040224484Nov 14, 2003Nov 11, 2004Ohalid FareedMethods of growing nitride-based film using varying pulsesUS20040226917Apr 25, 2003Nov 18, 2004Saint-Gobain Ceramics & Plastics, Inc.Methods for machining ceramicsUS20040245535Apr 26, 2004Dec 9, 2004General Electric CompanyHomoepitaxial gallium-nitride-based light emitting device and method for producingUS20050062392Jul 27, 2004Mar 24, 2005Tadashi SakaiDischarge electrode, a discharge lamp and a method for manufacturing the discharge electrodeUS20050072986Nov 19, 2004Apr 7, 2005Nec CorporationGroup-III nitride semiconductor deviceUS20050103257Nov 13, 2003May 19, 2005Xueping XuLarge area, uniformly low dislocation density GaN substrate and process for making the sameUS20050142391Feb 13, 2004Jun 30, 2005Technologies And Devices International, Inc.Method and apparatus for fabricating crack-free Group III nitride semiconductor materialsUS20050161697Jan 25, 2005Jul 28, 2005Sumitomo Electric Industries, Ltd.AlxInyGa1-x-yN mixture crystal substrate, method of growing same and method of producing sameUS20050214992May 6, 2005Sep 29, 2005The Regents Of The University Of CaliforniaFabrication of nonpolar indium gallium nitride thin films, heterostructures and devices by metalorganic chemical vapor deposition* Cited by examinerNon-Patent CitationsReference1Arulkumaran et al., "Improved dc characteristics of AIGaN/GaN high-electron-mobility transistors on AIN/sapphire templates," (2002) Applied Physics Letters, vol. 81, No. 6, pp. 1131-1133.2Atobe-JJAP, 29, 150, 1990-F-Type Centers in Neutron-Irradiated AIN.3Atobe�JJAP, 29, 150, 1990�F-Type Centers in Neutron-Irradiated AIN.4Balkas et al., "Sublimation Growth and Characterizations of Bulk Aluminum Nitride Single Crystals," J. Crystal Growth, (1997) 179, p. 363.5Barin, Thermochemical Data of Pure Substances, 2nd Ed., (1993) pp. 42, 1334-1335, 1337, 1381-1382, 1636-1639.6Berzina-RadEFF 157, 1089, 2002-Luminescence mechanisms of O-related defects in AIN.7Berzina-RadEFF 157, 1089, 2002�Luminescence mechanisms of O-related defects in AIN.8Bickerman pssc 0, 1993-1996, 2003-PVT growth of bulk AIN.9Bickerman pssc 0, 1993-1996, 2003�PVT growth of bulk AIN.10Bickerman-APL,103,073522, 2008-Polarization dependent below BG optical absorption of AIN bulk crystals.11Bickermann et al., "Characterization of bulk AIN with low oxygen content," Jrl. of Crys. Growth, vol. 269, Nos. 2-4, pp. 432-442.12Bickermann et al., "Point Defect Content and Optical Transitions in Bulk Aluminum Nitride Crystals," Phys. Stat. Sol. B 246, No. 6, pp. 1181-1183 (2009).13Bockowski et al., "Combustion Synthesis of Aluminum Nitride Under High Pressure of Nitrogen and Nitrogen-Argon Mixtures," 5 J. Mat. Synthesis & Processing 6, (1997) pp. 449-458.14Bolgar et al., "Vaporization of the Nitirides of B, Al, and Ga," in Khim Fiz. Nitrodov, pp. 151-156 (1968) [Chem Abstr. 71, 34003j (1969)].15Bradley-JVacSciTechB 21, 2558, 2003-Deep level defects and doping in high Al mole fraction AIGaN.16Bradley�JVacSciTechB 21, 2558, 2003�Deep level defects and doping in high Al mole fraction AIGaN.17Brunner-JAppPhys 82, 5090, 1997-Optical constants of epitaxial AIGaN films and their temperature dependence.18Brunner-JAppPhys 82, 5090, 1997�Optical constants of epitaxial AIGaN films and their temperature dependence.19Chase et al., J. Phys. Chem. Ref. Data 14, Supplement No. 1 (1985).20Chase, J. Phys. Chem., Ref. Data, Monograph No. 9, NIST-JANAF Thermochemical Tables, 4th Ed. (1998).21Chitnis et al., "Milliwatt Power AIGaN Quantum Well Deep Ultraviolet Light Emitting Diodes," Phys. Sat. Sol. (a), (2003) vol. 200, No. 1, pp. 99-101.22Collins-PRB 158, 833, 1967-Lattice vibration spectra of AIN.23Collins-PRB 158, 833, 1967�Lattice vibration spectra of AIN.24Constantin et al., "Mixing rocksalt and wurtzite structure binary nitrides to form novel ternary alloys: ScGaN and MnGaN," Mat. Res. Soc. Symp. Proc., 799 (2004) Z9.5.1.25Cox et al., "On the Preparation, Optical Properties and Electrical Behaviour of Aluminum Nitride," J. Phys. Chem. Solids, (1967) vol. 28, pp. 543-548.26Dalmau et al., Mat. Res. Soc. Proc., (2004) vol. 798, p. Y2.9.1.27DeVries et al., "Phase equilibria pertinent to the growth of cubic boron nitride," J. Cryst. Growth, 13/14 (1972) 88.28Dryburgh, "The Estimation of Maximum Growth Rate for Aluminum Nitride Crystals by Direct Sublimation," J. Crystal Growth, (1992) 125, pp. 65-68.29Dugger, "The single crystal synthesis and some properties of Aluminum Nitride", Air Force Cambridge Research Laboratories, Physical Science Research Papers, No. 656 (Aug. 1, 1975).30Dugger, The synthesis of Aluminum Nitride single crystals:, Mat. Res. Bulletin, 9 (1974) 331.31Edgar-JCrGrwth 310, 4002, 2008-Native oxide and hydroxides and their implications for bulk AIN crystal growth.32Epelbaum et al., "Sublimation growth of bulk AIN crystals: materials compatibility and crystal quality," Mat. Sci. Forum, (2002) 389-393, 1445.33Evans-APL 88, 06112, 2006�EPR of a donor in AIN crystals.34Freitas-APL 83, 2584,2003�Properties of bulk AIN grown by thermodecomposition of AICI3-H3.35Freitas-JCrGrwth 281, 168, 2005�Optical studies of bulk and homoepitaxial films of III-V nitride semiconductors.36Freitas-pssb 240, 330, 2003-Shallow donors in GaN.37Gorbatov et al., "Electrical Conductivity of Materials from Mixed Aluminum and Silicon Nitrides," Sov. Powd. Met. Met. Ceram., (1970) vol. 9, pp. 917-920.38Gutierrez�Phil.Mag.Let. 79, 147, 1999�The formation of nanopipes caused by donor impurities in GaN; a theoretical study for the case of oxygen.39Hacke et al., "Photoluminescence Intensity and Spectral Distribution of GaN Films on SiC," (1999) Phys. Stat. Sol. (b), 216, 639.40Hermann et al., "Highly Si-doped AIN Grown by Plasma-Assisted Molecular-Beam Epitaxy," Applied Phys. Letters, (2005) vol. 86, pp. 192108-1-192108-3.41Honda- JJAP 29, L652, 1990�Electron paramagnetic center in neutron-irradiated AIN.42Honig, "Vapor Pressure Data for the Solid and Liquid Elements", RCA Review, vol. 23 (1962) 567.43Hossain-SPIE 2877, 42, 1996�Study of CL spectroscopy of AIN.44International Preliminary Report on Patentability and Written Opinion for PCT/US2006/045540, mailed Jun. 12, 2008.45International Preliminary Report on Patentability and Written Opinion for PCT/US2006/046300, mailed Jun. 12, 2006.46International Search Report and Written Opinion for PCT/US2006/022329, mailed Dec. 12, 2006.47International Search Report and Written Opinion for PCT/US2007/011075, mailed Jul. 11, 2008.48International Search Report and Written Opinion for PCT/US2007/07980, mailed Oct. 12, 2007.49International Search Report and Written Opinion for PCT/US2008/000597, mailed May 20, 2008.50International Search Report and Written Opinion for PCT/US2008/001003, mailed Aug. 5, 2008.51International Search Report for PCT/US2006/045540, mailed Jul. 6, 2007.52International Search Report for PCT/US2006/046300, mailed May 30, 2007.53Jahnen et al., "Pinholes, Dislocations and Strain Relaxation in InGaN," MRS Internet J. Nitride Semicond. Res., (1998) 3:39.54Jones-JMR 14, 4344, 1999-Optical properties of AIN from VUS and ellipsometry.55Kanechika et al., "n-type AIN Layer by Si Ion Implantation," Applied Phys. Letters, (2006) vol. 88, p. 202106.56Karel et al., "The luminescence properties of AIN with Manganese and rare earth activators under ultraviolet and cathode-ray excitation", Czech. J. Phys., B20 (1970) 46.57Karpinski et al., "Equilibrium pressure of N2 over GaN and high pressure solution growth of GaN", J. Cryst. Growth, 66 (1984) 1.58Karpov et al., "Sublimation Growth of AIN in Vacuum and in a Gas Atmosphere," Phys. Stat. Sol. (a), (1999) 176, p. 435.59Kasu et al., "Formation of Solid Solution of AI1-xSixN (0<x?12%) Ternary Alloy," Jap. J. Appl. Phys., (2001) vol. 40, Part 2, No. 10A, pp. L1048-L1050.60Katayama-Yoshida et al., "Codoping method for the Fabrication of Low-Resistivity Wide Band-Gap Semiconductors in p-type GaN, p-type AIN and n-type Diamond: Prediction versus Experiment," 13 J. of Physics: Condensed Matter, pp. 8901-8914 (2001).61Kawabe et al., "Electrical and Optical Properties of AIN-a Thermostable Semiconductor," Elec. Engin. In Japan, (1967) vol. 87, pp. 62-70.62Kazan-Diamond15, 1525, 2006�Phonon dynamics in AIN lattice contaminated by O.63Kazan-JAP, 98, 103529,2005�Oxygen behavior in AIN.64Klemens-PhysB, 316-317,413, 2002�Effect of point defects on the decay of the longitudinal optical mode.65Kordis, "The BeO-MgO system", J. Nuc. Mater., 14 (1964) 322.66Kovalenkov-JCrGrwth 28187, 2005-Thick AIN layers grown by HVPE.67Lawson et al., "Preparation of Single Crystals", Academic Press, New York (1958) pp. 18-20.68Liu et al., "A Global Growth Rate Model for Aluminum Nitride Sublimation," J. Electrochemical. Soc., (2002) 149, p. G12.69Liu et al., "Characterization of AIN Crystals Grown by Sublimation," Phys. Stat. Sol. (a), (2001) 188, p. 769.70Liu et al., "Misfit Dislocation Generation in InGaN Epilayers on Free-Standing GaN," Jap. J. Appl. Physics, (2006) 46:22, pp. L549-L551.71Ludwig et al., "Dimers [AI2N4]", Zeitsch. f. Naturforsch., B54 (1999) pp. 461-465.72Mason-PRB 59, 1937, 1999�Optically detected EPR of AIN single crystals.73Matthews et al., "Defects in Epitaxial Multilayers," J. Crystal Growth, (1974) 27, p. 118.74McCluskey-PRL 80 4008 1998�Metastability of oxygen donors in AIGaN.75Meyer-Mat.Scie.EngB71,69,2000�Defects and defect identication in group III-nitrides.76Mokhov et al., "Sublimation growth of AIN bulk crystals in Ta crucibles," Jrl. of Crys. Growth, (Jul. 15, 2005) vol. 281, No. 1, pp. 93-100.77Morita-JJAP 21, 1102, 1982�Optical absorption and CL of epitaxial AIN films.78Naidu et al., Eds. "Phase Diagrams of Binary Tungsten Alloys," Indian Institute of Metals, Calcutta, pp. 7-13 (1991).79Nakahata-JAmCerSoc 80, 1612, 1997�Electron spin resonance analysis of lattice defects in poly AIN.80Nakanishi et al., "Effects of AI Composition on luminescence properties of europim implanted AIxGa1-xN (0&ang;�&ang;1)", Phys. Stat. Sol. (c), 0 (2003) 2623.81Nakanishi et al., "Effects of AI Composition on luminescence properties of europim implanted AIxGa1-xN (0∠�∠1)", Phys. Stat. Sol. (c), 0 (2003) 2623.82Nakarmi�APL 94, 091903, 2009�PL studies of impurity transitions Mg-doped AIGaN alloys.83Nam- APL 86, 222108, 2005�Deep Impurity transitions involving cation vacancies and complexes in AIGaN alloys.84Nassau et al., "The Physics and Chemistry of Color," Wiley-Interscience Publication (New York 1983).85Nepal�APL 84, 1091, 2004-Optical properties of the nitrogen vacancyin AIN epilayers.86Nepal�APL 89, 092107, 2006�Photoluminescene studies of impurity transitions in AIGaN alloys.87Niewa et al., "Li3[ScN2]: The first nitridoscandate (III)-Tetrahedral Sc Coordination and unusual MX2 framework", Chem. Eur. J. 9 (2003) 4255.88Niewa et al., "Recent developments in nitride chemistry", Chem. Mater., 10 (1998) 2733.89Niewa et al., "Li3[ScN2]: The first nitridoscandate (III)�Tetrahedral Sc Coordination and unusual MX2 framework", Chem. Eur. J. 9 (2003) 4255.90Noveski et al., "Growth of AIN Crystals on AIN/SiC Seeds by AIN Powder Sublimation in Nitrogen Atmosphere," MRS Internet J. Nitride Semicond. Res., (2004) 9, 2.91Noveski et al., "Mass Transfer in AIN Crystal Growth at High Temperatures," J. Crystal. Growth, (2004) 264, pp. 369-378.92Office Action in Australian Patent Application No. 2003303485, Oct. 9, 2008, 2 pages.93Office Action in Canadian Patent Application No. 2,467,806, Aug. 13, 2009, 4 pages.94Office Action in Canadian Patent Application No. 2,467,806, Feb. 23, 2010, 2 pages.95Office Action in European Patent Application No. 02803675.4, May 2, 2007, 4 pages.96Office Action in European Patent Application No. 02806723.9, Aug. 8, 2008, 3 pages.97Office Action in European Patent Application No. 02806723.9, dated Feb. 16, 2010 (2 pages).98Office Action in European Patent Application No. 02806723.9, Feb. 7, 2007, 4 pages.99Office Action in European Patent Application No. 02806723.9, Jan. 17, 2008, 4 pages.100Office Action in European Patent Application No. 03808366.3, dated Sep. 28, 2006, 4 pages.101Office Action in European Patent Application No. 06844804.2, Mar. 4, 2009, 3 pages.102Office Action in Japanese Patent Application No. 2003-545445, mailed Nov. 10, 2009, 3 pages (translation).103Office Action in Japanese Patent Application No. 2003-545445, mailed Sep. 30, 2008, 3 pages (translation).104Office Action in Japanese Patent Application No. 2003-579324, May 27, 2008 (English Translation).105Office Action in Japanese Patent Application No. 2003-579324, Sep. 8, 2009, 1 page (translation).106Office Action in Japanese Patent Application No. 2004-564648, Feb. 3, 2010, 2 pages (translation).107Office Action in Japanese Patent Application No. 2004-564648, Jun. 24, 2009, 2 pages (translation).108Office Action in Taiwan Patent Application No. 91137050, Apr. 6, 2004, 1 page (translation).109Pantha�APL 91, 121117, 2007�Correlation between biaxial stress and free exciton transition in AIN.110Parker et al., "Determination of the critical layer thickness in the InGaN/GaN heterostructures," Applied Phys. Letters., (1999) vol. 75, No. 18, pp. 2776-2778.111Partial International Search Report for International Application No. PCT/US07/11075, dated May 7, 2008 (2 pages).112Perry and Rutz�APL 33, p319, 1978�The optical absorption edge of single-crystal AIN prepared by a closed-spaced vapor process.113Proc. of NATO Advanced Study Inst. on Nitrogen Ceramics, University of Kent, Canterbury, U.K. (1976).114Raghothamachar et al., "Synchrotron White Beam Topography Characterization of Physical Vapor Transport Grown AIN and Ammonothermal GaN," J. Crystal Growth, (2002) 246, pp. 271-280.115Raghothamachar et al., "X-ray Characterization of Bulk AIN Single Crystals Grown by the Sublimation Technique," J. Crystal Growth 250(1-2), pp. 244-250 (2003).116Rojo et al., "Growth and Characterization of Epitaxial Layers on Aluminum Nitride Substrates Prepared from Bulk, Single Crystals," J. Crystal Growth, (2002) 240, p. 508.117Rojo et al., "Progress in the Preparation of Aluminum Nitride Substrates from Bulk Cystals," Mat.Res. Soc. Symp. Pro., (2002) vol. 722, pp. 5-13.118Rojo et al., "Report on the Growth of Bulk Aluminum Nitride and Subsequent Substrate Preparation," J. Crystal Growth, (2001) 231, p. 317.119Rojo et al., "Growth and Characterization of Epitaxial Layers on Aluminum Nitride Substrates Prepared from Bulk, Single Crystals," J. Crystal Growth 240, p. 508 (2002).120Salzman�pssc 0, 2541, 2003�Reduction of oxygen contamination in AIN.121Sarua-MRS 798, Y17.1, 2004-Effect of impurities on Raman and PL spectra of AIN bulk crystals.122Schlesser et al., "Growth of AIN Bulk Crystals from the Vapor Phase," Mat. Res. Soc. Symp. Proc., (2002) 693, p. I9.4.1.123Schlesser et al., "Seeded Growth of AIN Bulk Single Srystals by Sublimation " J. Crystal. Growth, 241, pp. 416-420.124Schlesser�JCrGrwth 281, 75, 2005�Crucible materials for growth of aluminum nitride crystals.125Schowalter et al., "Fabrication of Native, Single-Crystal AIN Substrates," Phys. Stat. Sol. (c), (2003) 1-4.126Schweizer-ppsb 219, 171, 2000�Investigation of oxygen-related luminescence centres in AIN ceramic.127Sedhain�APL 93, 014905, 2008�Photoluminescence properties of AIN homeopilayers with different orientations.128Segal et al., "On Mechanisms of Sublimination Growth of AIN bulk Crystals," J. Crystal Gowth, (2000) 211, pp. 68-72.129Shi-APL89, 163127, 2006�Luminescence properties of AIN nanotips.130Shih et al, "High-quality and crack-free A1xGa1-xN (x-0.2) grown on sapphire by a two-step growth method," Jrl. of Crys. Growth, (Apr. 15, 2005) vol. 277, No. 1-4, pp. 44-50.131Silveira et al., "Excitonic Structure of Bulk AIN from Optical Reflectivity and Cathodoluminescense Measurements," Phys. Review B71, 041201� (2006).132Singh et al., "Physical Vapor Transport Growth of Large AIN Crystals," J. Cryst. Growth, (2003) 250, p. 107.133Slack et al., "AIN Single Crystals," J. Crystal Growth, (1977) 42, pp. 560-563.134Slack et al., "Growth of High Purity AIN Crystals," Journal of Crystal Growth, (1976) vol. 34, pp. 263-279.135Slack et al., "Properties of Crucible Materials for Bulk Growth of AIN," Mat. Res. Soc. Proc., (2004) vol. 798, pp. Y10.74.1-Y10.74.4.136Slack et al., "Some Effects of Oxygen Impurities on AIN and GaN," J. Crystal Growth, (2002) 246, pp. 287-298.137Smart et al., "AIGaN/GaN Heterostructures on Insulating AIGaN Nucleation Layers," Appl. Phys. Letters, (1999) 75, p. 388.138Solid State Lighting Report (Dept. of Energy, 2007).139Song, "Strain relaxation due to V-pit formation in InxGa1-xN/GaN epilayers grown on sapphire," J. Applied Phys., (2005) 98: 084906.140Stampfl-PRB 65, 155212, 2002-Theoretical investigation of native defects, impurities and complexes in aluminum nitride.141Strassburg-JAP 96, 5870,2004-Growth and optical properties of large high quality AIN single crystals.142Summons to Attend Oral Proceedings in European Patent Application No. 03808366.3, Dec. 17, 2007, 5 pages.143Sun et al., "Phase relationships in the system Y-AI-O-N", Mater. Letters, 3-4 (1991) 76.144Takeuchi et al., "Optical Properties of Strained AIGaN and GaInN on GaN," Jap. J. Appl. Phys., (1997) vol. 36, pp. L177-L179.145Takeya et al., "Degradation in AIGaInN Lasers," Phys. Stat. Sol. (c), (2003) 0, No. 7, pp. 2292-2295.146Taniyasu et al., "An aluminum nitride light-emitting diode with a wavelength of 210 nanometres", Nature, 441 (2006) 325.147Taniyasu et al., "Intentional control of n-type conduction for Si-doped AIN and AlxGa1-xN (0.42 &ang;�&ang;1)", Applied Physics Letters, 81 (2002) 1255.148Taniyasu et al., "Intentional control of n-type conduction for Si-doped AIN and AlxGa1-xN (0.42 ∠�∠1)", Applied Physics Letters, 81 (2002) 1255.149Tavernier et al., "Chemical Mechanical Polishing of Gallium Nitride," Electrochemical and Solid State Latters, v. 5(8), pp. G61-G64 (2002).150Thomas-J.Eur.Cer.Soc. 1991-Determination of the concentration of oxygen dissolved in the AIN lattice.151Tomiya et al., "Dislocations in GaN-Based Laser Diodes on Epitaxial Lateral Overgrown GaN Layers," Phys. Stat. Sol. (a), (2001) vol. 188, No. 1, pp. 69-72.152Trinkler-JphysCondMatt 13, 8931, 2001�Radiation induced recombination processes in AIN ceramics.153Trinkler-RadiationMeasurements 33, 731, 2001-Stimulated luminescence of AIN ceramics induced by UV radiation.154Trinkler-SPIE 2967, 85, 1997�Spectral properties of AIN ceramics.155Tuomisto-JCrGrwth 2008-Characterization of bulk AIN crystals with position annihilation spectroscopy.156Vail-JPhysCondMat18,21225, 2006�The nitrogen vacancy in AIN.157Van de Walle et al., "Doping of AIGaN Alloys," MRS Internet J. Nitride Semicond. Res., (1999) 4S1, G10.4, pp. 1-12.158Van de Walle et al., "DX-center Formation in Wurtzite and Zinc-blende AlxGa1-xN," Phys. Rev., (1998) B57, R2033.159Van de Walle�AppPhysRev 95,3852 2004-First principles calculations for defects and impurities�Application s to iii-nitrides.160Vendl et al., "The melting points of some rare-earth metal nitrides as function of the nitrogen pressure", High Temperatures-High Pressures, 9 (1977) 313.161Vendl et al., "The melting points of some rare-earth metal nitrides as function of the nitrogen pressure", High Temperatures�High Pressures, 9 (1977) 313.162Venugopal et al., "Comparison of Various Buffer Schemes to Grow GaN on Large-Area Si(111) Substrates Using Metal-Organic Chemical-Vapor Deposition," 32 J. Electronic Mat., vol. 32, No. 5 (2003) pp. 371-374.163Vinogradov et al., "Determination of the Melting Parameters of Aluminum Nitride " High Temperatures-High Pressures, (1991) 23:685.164Vinogradov et al., "Determination of the Melting Parameters of Aluminum Nitride " High Temperatures�High Pressures, (1991) 23:685.165Watanabe-JMR13,2956,1998�Changes in optical transmittance and surface morphology of AIN thin films exposed to atmosphere.166Wentorf Jr., "Synthesis of the cubic form of boron nitride", J. Chem. Phys., 34 (1961) 809.167Wongchotigul et al., "Low Resistivity Aluminum Nitride:Carbon (AIN:C) Films Grown by Metal Organic Chemical Vapor Deposition," 26 Materials Letters, pp. 223-226 (Mar. 1996).168Yamane et al., "Preparation of GaN single crystals using a Na flux", Chem. Mater., 9 (1997).169Yano et al., "Growth of nitride crystals, BN. AIN and GaN by using a Na flux", Diamond and Related Materials, 9 (2000) 512.170Zeisel et al., "DX-behavior of Si in AIN," Phys. Rev., (2000) B61, R16283.171Zhuang et al., "Seeded growth of AIN single crystals by physical vapor transport " Jrl. of Crys. Growth, (Jan. 25, 2006), vol. 287, No. 2, pp. 372-375.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8344409 *Jul 7, 2011Jan 1, 2013Epistar CorporationOptoelectronic device and method for manufacturing the same* Cited by examinerClassifications U.S. Classification117/89, 117/105, 117/108, 117/942, 117/109International ClassificationH01L33/02, C30B29/04, H01L33/00, C30B11/00Cooperative ClassificationC30B11/003, C30B29/403, C30B23/00, H01L33/025, H01L33/0075European ClassificationC30B29/40B, H01L33/00G3C, C30B23/00, C30B11/00FLegal EventsDateCodeEventDescriptionAug 31, 2010ASAssignmentOwner name: CRYSTAL IS, INC., NEW YORKFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHOWALTER, LEO J.;SLACK, GLEN A.;ROJO, J. 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