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Class Information
Number: 257/E33.026
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Light emitting semiconductor devices having a potential or a surface barrier, processes or apparatus peculiar to the manufacture or treatment of such devices, or of parts thereof > Device characterized by semiconductor body (epo) > Material of active region (epo) > Comprising only group iii-v compound (epo) > Ternary or quaternary compound (e.g., algaas) (epo)
Description: This subclass is indented under subclass E33.023. This subclass is substantially the same in scope as ECLA classification H01L33/00C4D3.










Sub-classes under this class:

Class Number Class Name Patents
257/E33.028 Including nitride (e.g., algan) (epo) 711
257/E33.027 With heterojunction (epo) 340


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8680571 Gallium nitride based light emitting diode Mar. 25, 2014
8643059 Substrate structure and method of manufacturing the same Feb. 4, 2014
8557622 Epitaxial growth of in-plane nanowires and nanowire devices Oct. 15, 2013
8502267 Optoelectronic semiconductor component Aug. 6, 2013
8482027 Epitaxial wafer for light emitting diode Jul. 9, 2013
8404506 Single-photon source and method for the production and operation thereof Mar. 26, 2013
8384120 Method of fabricating vertical structure LEDs Feb. 26, 2013
8384100 InGaAIN light-emitting device and manufacturing method thereof Feb. 26, 2013
8354689 Light emitting devices having dopant front loaded tunnel barrier layers Jan. 15, 2013
8304784 Illumination device Nov. 6, 2012
8274161 Flux-free chip to substrate joint serial linear thermal processor arrangement Sep. 25, 2012
8252678 Flux-free chip to wafer joint serial thermal processor arrangement Aug. 28, 2012
8076685 Nitride semiconductor device having current confining layer Dec. 13, 2011
8053793 III-nitride semiconductor light emitting device Nov. 8, 2011
8044416 Method for fabricating high-power light-emitting diode arrays Oct. 25, 2011
7935974 White light emitting device May. 3, 2011
7928465 Method of fabricating vertical structure LEDs Apr. 19, 2011
7928448 III-nitride light emitting device including porous semiconductor layer Apr. 19, 2011
7928449 Light emitting device and manufacturing method thereof Apr. 19, 2011
7897993 GaN based luminescent device on a metal substrate Mar. 1, 2011
7868316 Nitride semiconductor device Jan. 11, 2011
7842531 Gallium nitride-based device and method Nov. 30, 2010
7838890 Optical device and method for manufacturing optical device Nov. 23, 2010
7820463 Nitride-based light emitting device and manufacturing method thereof Oct. 26, 2010
7781785 Light emitting diode with plated substrate and method for producing the same Aug. 24, 2010
7741654 Group III nitride semiconductor optical device Jun. 22, 2010
7723739 Semiconductor light emitting device and illuminating device using it May. 25, 2010
7601985 Semiconductor light-emitting device Oct. 13, 2009
7518139 Gallium nitride-based device and method Apr. 14, 2009
7427785 Nitride-based light emitting device and manufacturing method thereof Sep. 23, 2008
7187007 Nitride semiconductor device and method of manufacturing the same Mar. 6, 2007
7148514 Nitride semiconductor light emitting diode and fabrication method thereof Dec. 12, 2006
7148518 Group-III nitride semiconductor stack, method of manufacturing the same, and group-III nitride semiconductor device Dec. 12, 2006
7129526 White color light emitting device Oct. 31, 2006
7105850 GaN LED structure with p-type contacting layer grown at low-temperature and having low resistivity Sep. 12, 2006
7009221 Light-emitting thyristor and self-scanning light-emitting device Mar. 7, 2006
6876006 Radiation source Apr. 5, 2005
6831293 P-n junction-type compound semiconductor light-emitting device, production method thereof, lamp and light source Dec. 14, 2004
6825500 Light-emitting thyristor and self-scanning light-emitting device Nov. 30, 2004
6541799 Group-III nitride semiconductor light-emitting diode Apr. 1, 2003
6531715 Multilayer contact electrode for compound semiconductors and production method thereof Mar. 11, 2003
6522063 Light emitting diode Feb. 18, 2003
6472687 Light emitting diode with high luminance and method therefor Oct. 29, 2002
6063644 Light-emitting element and array with etched surface, and fabrication method thereof May. 16, 2000
5986288 Epitaxial wafer for a light-emitting diode and a light-emitting diode Nov. 16, 1999
RE36315 Compounds and infrared devices including stoichiometric semiconductor compounds of indium, thallium, and including at least one of arsenic and phosphorus Sep. 28, 1999
5939733 Compound semiconductor device having a group III-V compound semiconductor layer containing therein T1 and As Aug. 17, 1999
5856208 Epitaxial wafer and its fabrication method Jan. 5, 1999
5751026 Epitaxial wafer of gallium arsenide phosphide May. 12, 1998
5665984 Light-emitting diode Sep. 9, 1997

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