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Class Information
Number: 257/E33.015
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)
Description: This subclass is indented under subclass E33.013. This subclass is substantially the same in scope as ECLA classification H01L33/00C4B.










Sub-classes under this class:

Class Number Class Name Patents
257/E33.017 Characterized by doping material (epo) 31
257/E33.018 Including porous si (epo) 77
257/E33.016 With heterojunction (epo) 38


Patents under this class:
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Patent Number Title Of Patent Date Issued
8436333 Silicon light emitting diode, silicon optical transistor, silicon laser and its manufacturing method May. 7, 2013
7750352 Light strips for lighting and backlighting applications Jul. 6, 2010
7700936 Fabrication of quantum dots embedded in three-dimensional photonic crystal lattice Apr. 20, 2010
7675079 Diamond coating of silicon-carbide LEDs Mar. 9, 2010
7247885 Carrier confinement in light-emitting group IV semiconductor devices Jul. 24, 2007
7148514 Nitride semiconductor light emitting diode and fabrication method thereof Dec. 12, 2006
7023011 Devices with optical gain in silicon Apr. 4, 2006
7009219 Diamond ultraviolet light-emitting device Mar. 7, 2006
6998643 Silicon-based light emitting diode Feb. 14, 2006
6930330 Silicon optoelectronic device and light emitting apparatus using the same Aug. 16, 2005
6927422 Double heterojunction light emitting diodes and laser diodes having quantum dot silicon light emitters Aug. 9, 2005
6924510 Silicon and silicon/germanium light-emitting device, methods and systems Aug. 2, 2005
6918946 Applications of light-emitting nanoparticles Jul. 19, 2005
6872981 Diamond ultraviolet luminescent element Mar. 29, 2005
6858864 Devices with optical gain in silicon Feb. 22, 2005
6846565 Light-emitting nanoparticles and method of making same Jan. 25, 2005
6815721 Diamond semiconductor and diamond semiconductor light-emitting device that uses the semiconductor Nov. 9, 2004
6770903 Metal-oxide-silicon device including nanometer scaled oxide structure to enhance light-emitting efficiency Aug. 3, 2004
6756086 Method for the fabrication of a diamond semiconductor Jun. 29, 2004
6734453 Devices with optical gain in silicon May. 11, 2004
6727171 Diamond pn junction diode and method for the fabrication thereof Apr. 27, 2004
6632694 Double heterojunction light emitting diodes and laser diodes having quantum dot silicon light emitters Oct. 14, 2003
6340826 Infra-red light emitting Si-MOSFET Jan. 22, 2002
6319427 Fast luminescent silicon Nov. 20, 2001
6288415 Optoelectronic semiconductor devices Sep. 11, 2001
6157047 Light emitting semiconductor device using nanocrystals Dec. 5, 2000
6111271 Optoelectronic device with separately controllable carrier injection means Aug. 29, 2000
6072275 Light emitting element and flat panel display including diamond film Jun. 6, 2000
6027666 Fast luminescent silicon Feb. 22, 2000
5994720 Indirect bandgap semiconductor optoelectronic device Nov. 30, 1999
5920078 Optoelectronic device using indirect-bandgap semiconductor material Jul. 6, 1999
5851904 Method of manufacturing microcrystalline layers and their utilization Dec. 22, 1998
5783498 Method of forming silicon dioxide film containing germanium nanocrystals Jul. 21, 1998
5668382 Ohmic electrode and method for forming it Sep. 16, 1997
5632812 Diamond electronic device and process for producing the same May. 27, 1997
5627386 Silicon nanostructure light-emitting diode May. 6, 1997
5624705 Method of producing a device comprising a luminescent material Apr. 29, 1997
5612548 Diamond light-emitting element Mar. 18, 1997
5578379 Device comprising a luminescent material Nov. 26, 1996
5538911 Manufacturing method for a diamond electric device Jul. 23, 1996
5538911 Manufacturing method for a diamond electric device Jul. 23, 1996
5442191 Isotopically enriched semiconductor devices Aug. 15, 1995
5373172 Semiconducting diamond light-emitting element Dec. 13, 1994
5347147 Light emitting diamond device Sep. 13, 1994
5315272 Light emitting tunnel diode oscillator May. 24, 1994
5144409 Isotopically enriched semiconductor devices Sep. 1, 1992
5139970 Electric device and manufacturing method of the same Aug. 18, 1992
5077143 Silicon electroluminescent device Dec. 31, 1991
5075764 Diamond electric device and manufacturing method for the same Dec. 24, 1991
5055424 Method for fabricating ohmic contacts on semiconducting diamond Oct. 8, 1991

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