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Class Information
Number: 257/E33.005
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) > Shape or structure (e.g., shape of epitaxial layer) (epo)
Description: This subclass is indented under subclass E33.002. This subclass is substantially the same in scope as ECLA classification H01L33/00C3.










Sub-classes under this class:

Class Number Class Name Patents
257/E33.011 For current confinement (epo) 110
257/E33.012 Multiple active regions between two electrodes (e.g., stacks) (epo) 169
257/E33.008 Multiple quantum well structure (epo) 512
257/E33.007 Shape of potential barrier (epo) 128
257/E33.006 Shape of semiconductor body (epo) 336


Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
8709923 Method of manufacturing III-nitride crystal Apr. 29, 2014
8710486 Optoelectronic semiconductor chip and method for manufacturing a contact structure for such a chip Apr. 29, 2014
8692227 Light-emitting device Apr. 8, 2014
8692265 Lighting device Apr. 8, 2014
8686457 Method for manufacturing substrate for semiconductor light emitting element and semiconductor light emitting element using the same Apr. 1, 2014
8680561 Semiconductor light emitting device and method for manufacturing same Mar. 25, 2014
8680506 Simultaneous modulation of quantum dot photoluminescence using orthogonal fluorescence resonance energy transfer (FRET) and charge transfer quenching (CTQ) Mar. 25, 2014
8674383 Solid state lighting device on a conductive substrate Mar. 18, 2014
8674339 Light-emitting devices and methods of manufacturing the same Mar. 18, 2014
8664682 Semiconductor light emitting device and method of fabricating the same Mar. 4, 2014
8653538 Rod type light emitting device and method for fabricating the same Feb. 18, 2014
8648363 Organic EL display unit, method of manufacturing the same, and solution used in method Feb. 11, 2014
8648357 Radiation-emitting device Feb. 11, 2014
8643059 Substrate structure and method of manufacturing the same Feb. 4, 2014
8633495 Nitride semiconductor light-emitting device and method of manufacturing the same Jan. 21, 2014
8628989 Tri-gate field-effect transistors formed by aspect ration trapping Jan. 14, 2014
8623679 Organic EL display unit, method of manufacturing the same, and solution used in method Jan. 7, 2014
8623685 Method of manufacturing a light emitting diode Jan. 7, 2014
8610104 Nanotube array injection lasers Dec. 17, 2013
8610125 Nanotube array light emitting diodes Dec. 17, 2013
8593590 Lighting apparatus and display device including the same Nov. 26, 2013
8580668 Method of forming ohmic contact layer and method of fabricating light emitting device having ohmic contact layer Nov. 12, 2013
8581274 Integrated semiconductor light-emitting device and its manufacturing method Nov. 12, 2013
8569784 Light emitting device and method for manufacturing the same Oct. 29, 2013
8564008 Light emitting device and light emitting device package Oct. 22, 2013
8558215 Light emitting device, light emitting device package, method of manufacturing light emitting device and lighting system Oct. 15, 2013
8552445 Semiconductor light emitting device and method for manufacturing the same Oct. 8, 2013
8546825 Light emitting device Oct. 1, 2013
8541803 Cadmium-free re-emitting semiconductor construction Sep. 24, 2013
8536594 Solid state lighting devices with reduced dimensions and methods of manufacturing Sep. 17, 2013
8519412 Semiconductor light-emitting device and method for manufacturing thereof Aug. 27, 2013
8519416 Method of fabricating nitride-based semiconductor light-emitting device and nitride-based semiconductor light-emitting device Aug. 27, 2013
8492787 Light-emitting device Jul. 23, 2013
8487325 Light emitting diode with large viewing angle and fabricating method thereof Jul. 16, 2013
8471239 Light-emitting element and a production method therefor Jun. 25, 2013
8461569 Semiconductor device and a method of fabricating a semiconductor device Jun. 11, 2013
8460957 Optical semiconductor device, method for manufacturing optical semiconductor device, and method for manufacturing optical semiconductor apparatus Jun. 11, 2013
8455857 Nanoelectronic structure and method of producing such Jun. 4, 2013
8455322 Silicon germanium heterojunction bipolar transistor structure and method Jun. 4, 2013
8440996 Nitride semiconductor light emitting device and fabrication method thereof May. 14, 2013
8441020 Light emitting diode wafer-level package with self-aligning features May. 14, 2013
8436333 Silicon light emitting diode, silicon optical transistor, silicon laser and its manufacturing method May. 7, 2013
8436368 Methods of forming light emitting devices having current reducing structures May. 7, 2013
8436384 Semiconductor light emitting device and method for manufacturing the same May. 7, 2013
8421104 Light emitting diode apparatus and method for enhancing luminous efficiency thereof Apr. 16, 2013
8415181 Light emitting element with improved light extraction efficiency, light emitting device comprising the same, and fabricating method of the light emitting element and the light emitting device Apr. 9, 2013
8415555 Dimensional silica-based porous silicon structures and methods of fabrication Apr. 9, 2013
8405100 Organic EL display unit, method of manufacturing the same, and solution used in method Mar. 26, 2013
8404042 Group-III nitride crystal composite Mar. 26, 2013
8372670 Light-emitting element assembly and method for manufacturing the same Feb. 12, 2013

1 2 3 4 5 6 7 8 9 10










 
 
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