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Class Information
Number: 257/E33.016
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 iv element (epo) > With heterojunction (epo)
Description: This subclass is indented under subclass E33.015. This subclass is substantially the same in scope as ECLA classification H01L33/00C4B2.










Patents under this class:

Patent Number Title Of Patent Date Issued
8659041 Nitride semiconductor light emitting diode Feb. 25, 2014
8643003 Light emitting device Feb. 4, 2014
8552461 Light emitting diode without leads Oct. 8, 2013
8502263 Light-emitter-based devices with lattice-mismatched semiconductor structures Aug. 6, 2013
8222657 Light emitting apparatus Jul. 17, 2012
8143650 Semiconductor device having resistance layer formed on side surface of semiconductor layer Mar. 27, 2012
8129733 Gallium nitride light emitting devices on diamond Mar. 6, 2012
8110849 Light emitting device and method of manufacturing the same Feb. 7, 2012
8017953 Luminescence diode chip with current spreading layer and method for producing the same Sep. 13, 2011
7973325 Reflective electrode and compound semiconductor light emitting device including the same Jul. 5, 2011
7935956 Optoelectronic device based on compound semiconductor quantum dots in SiGe cladding layers May. 3, 2011
7910425 Multiple doping level bipolar junctions transistors and method for forming Mar. 22, 2011
7888692 Single photon source Feb. 15, 2011
7884381 Light emitting device and method for fabricating the same including a back surface electrode with an Au alloy Feb. 8, 2011
7781796 Nitride semiconductor laser element Aug. 24, 2010
7737453 Light emitting diode structure Jun. 15, 2010
7713811 Multiple doping level bipolar junctions transistors and method for forming May. 11, 2010
7700936 Fabrication of quantum dots embedded in three-dimensional photonic crystal lattice Apr. 20, 2010
7683366 Organic thin film transistor providing smoother movement of holes between electrodes and semiconductor layer and flat panel display device including the same Mar. 23, 2010
7671383 Semiconductor device and method of producing the same Mar. 2, 2010
7652282 Semiconductor wafer, devices made therefrom, and method of fabrication Jan. 26, 2010
7626209 Light emitting diode having active region of multi quantum well structure Dec. 1, 2009
7582891 Materials and optical devices based on group IV quantum wells grown on Si-Ge-Sn buffered silicon Sep. 1, 2009
7470934 Radiation-emitting optoelectronic semiconductor chip with a diffusion barrier Dec. 30, 2008
7449727 Overvoltage-protected light-emitting semiconductor device Nov. 11, 2008
6815721 Diamond semiconductor and diamond semiconductor light-emitting device that uses the semiconductor Nov. 9, 2004
6787810 Image input/output device for displaying an image on a single panel Sep. 7, 2004
6740904 Silicon light-emitting device and display apparatus employing the same May. 25, 2004
6569534 Optical material and optical element using the same May. 27, 2003
6399502 Process for fabricating a planar heterostructure Jun. 4, 2002
6399225 Silicon-and-nitrogen-containing luminescent substance, method for forming the same, and light emitting device using the same Jun. 4, 2002
5500539 Method of depositing diamond and diamond light emitting device Mar. 19, 1996
5476812 Semiconductor heterojunction structure Dec. 19, 1995
5117267 Semiconductor heterojunction structure May. 26, 1992
5106452 Method of depositing diamond and diamond light emitting device Apr. 21, 1992
5034784 Diamond electric device on silicon Jul. 23, 1991
4180825 Heteroepitaxial deposition of GaP on silicon substrates Dec. 25, 1979
3985590 Process for forming heteroepitaxial structure Oct. 12, 1976











 
 
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