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Class Information
Number: 257/E33.032
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) > Including ternary or quaternary compound (e.g., algaas) (epo) > With heterojunction (e.g., algaas/gaas) (epo)
Description: This subclass is indented under subclass E33.031. This subclass is substantially the same in scope as ECLA classification H01L33/00C4D6B.










Patents under this class:

Patent Number Title Of Patent Date Issued
8680509 Nitride semiconductor device and method of producing the same Mar. 25, 2014
8558246 Light emitting diode, method for fabricating phosphor layer, and lighting apparatus Oct. 15, 2013
8546156 High efficiency light-emitting diode and method for manufacturing the same Oct. 1, 2013
8530257 Band offset in alingap based light emitters to improve temperature performance Sep. 10, 2013
8507929 Semiconductor light emitting device including graded region Aug. 13, 2013
8476649 Solid state lighting devices with accessible electrodes and methods of manufacturing Jul. 2, 2013
8441037 Semiconductor device having a thin film stacked structure May. 14, 2013
8373174 III-nitride semiconductor light emitting device Feb. 12, 2013
8354689 Light emitting devices having dopant front loaded tunnel barrier layers Jan. 15, 2013
8323994 Group III nitride semiconductor light-emitting device and method for producing the same Dec. 4, 2012
8299480 Semiconductor light emitting device and method for manufacturing same, and epitaxial wafer Oct. 30, 2012
8294179 Optical device structure using GaN substrates and growth structures for laser applications Oct. 23, 2012
8269236 Light-emitting diode and fabrication method thereof Sep. 18, 2012
8124993 Selective decomposition of nitride semiconductors to enhance LED light extraction Feb. 28, 2012
8076685 Nitride semiconductor device having current confining layer Dec. 13, 2011
8071409 Fabrication method of light emitting diode Dec. 6, 2011
8013323 Nitride semiconductor and method for manufacturing thereof Sep. 6, 2011
7982205 III-V group compound semiconductor light-emitting diode Jul. 19, 2011
7935974 White light emitting device May. 3, 2011
7928448 III-nitride light emitting device including porous semiconductor layer Apr. 19, 2011
7880187 Semiconductor light emitting device having narrow radiation spectrum Feb. 1, 2011
7842531 Gallium nitride-based device and method Nov. 30, 2010
7834343 Nitride semiconductor and method for manufacturing thereof Nov. 16, 2010
7811838 High efficiency light-emitting diode and method for manufacturing the same Oct. 12, 2010
7795631 Light-emitting device Sep. 14, 2010
7781245 Method to fabricate semiconductor optical device Aug. 24, 2010
7709287 Method of forming a multijunction solar cell structure with a GaAs/AIGaAs tunnel diode May. 4, 2010
7678596 Method for manufacturing monolithic semiconductor laser Mar. 16, 2010
7675077 Light-emitting diode and method for manufacturing the same Mar. 9, 2010
7622745 Epitaxial wafer for a semiconductor light emitting device, method for fabricating the same and semiconductor light emitting device Nov. 24, 2009
7601985 Semiconductor light-emitting device Oct. 13, 2009
7579630 Semiconductor optical device Aug. 25, 2009
7553691 Method and apparatus of multiplejunction solar cell structure with high band gap heterojunction middle cell Jun. 30, 2009
7547925 Superlattice strain relief layer for semiconductor devices Jun. 16, 2009
7531440 Semiconductor laser device, semiconductor laser system, optical pickup module and manufacturing for semiconductor laser system May. 12, 2009
7518139 Gallium nitride-based device and method Apr. 14, 2009
7473935 White-light emitting semiconductor device Jan. 6, 2009
7374959 Two-wavelength semiconductor laser device and method of manufacturing the same May. 20, 2008
7348602 Nitride semiconductor device Mar. 25, 2008
7276735 Laminated semiconductor substrate and optical semiconductor element Oct. 2, 2007
7253865 Non rectangular display device Aug. 7, 2007
7217960 Semiconductor device May. 15, 2007
7145180 Method of fabricating a light emitting device, and light emitting device Dec. 5, 2006
6570191 Surface-light-emitting device including AlGalnP and AlGaAs multi-film reflecting layers May. 27, 2003
6236065 Light-emitting diode array and method for fabricating the same May. 22, 2001











 
 
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