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Class Information
Number: 257/E33.074
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 > Detail of nonsemiconductor component other than light-emitting semiconductor device (epo) > Means for light extraction or guiding (epo) > Scattering means (e.g., surface roughening) (epo)
Description: This subclass is indented under subclass E33.067. This subclass is substantially the same in scope as ECLA classification H01L33/00B6D.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8691606 Method for manufacturing a light emitting diode with smooth surface for reflective electrode Apr. 8, 2014
8692277 Light emitting diodes including optically matched substrates Apr. 8, 2014
8685768 Organic light emitting diodes and methods of manufacturing the same Apr. 1, 2014
8679874 Light-emitting device having a roughened surface with different topographies Mar. 25, 2014
8673662 Light-emitting diode cutting method and product thereof Mar. 18, 2014
8674384 Light emitting element Mar. 18, 2014
8669563 Light emitting devices having roughened/reflective contacts and methods of fabricating same Mar. 11, 2014
8664019 Vertical group III-nitride light emitting device and method for manufacturing the same Mar. 4, 2014
8664687 Nitride semiconductor light-emitting device and process for producing the same Mar. 4, 2014
8647901 Method for forming a nitride semiconductor layer and method for separating the nitride semiconductor layer from the substrate Feb. 11, 2014
8643043 LED lighting device Feb. 4, 2014
8637334 High brightness light emitting diode covered by zinc oxide layers on multiple surfaces grown in low temperature aqueous solution Jan. 28, 2014
8633042 Light emitting diode Jan. 21, 2014
8629474 Light emitting device and method of manufacturing the same Jan. 14, 2014
8624283 Light emitting device, manufacturing method thereof, light emitting device package, and lighting system Jan. 7, 2014
8624285 Light emitting diode with three-dimensional nano-structures Jan. 7, 2014
8618563 Light emitting device with vertically adjustable light emitting pattern Dec. 31, 2013
8617909 LED with substrate modifications for enhanced light extraction and method of making same Dec. 31, 2013
8598599 Group III nitride semiconductor light-emitting device Dec. 3, 2013
8598613 Light emitting device comprising an electrode with perforation pattern Dec. 3, 2013
8563999 Light emitting device, light emitting device package and illumination system for reducing dislocation in semiconductor layer Oct. 22, 2013
8564005 Light-emitting device package Oct. 22, 2013
8557617 Method of manufacturing light emitting diode package Oct. 15, 2013
8558263 Nitride semiconductor light-emitting device having high light efficiency and method of manufacturing the same Oct. 15, 2013
8552451 Light-emitting diode with increased light extraction Oct. 8, 2013
8541788 LED with current confinement structure and surface roughening Sep. 24, 2013
8525202 LED package, method for manufacturing LED package, and packing member for LED package Sep. 3, 2013
8519385 Organic light emitting diode display Aug. 27, 2013
8513685 Electrically pixelated luminescent device incorporating optical elements Aug. 20, 2013
8507924 Light emitting diode with high aspect ratio submicron roughness for light extraction and methods of forming Aug. 13, 2013
8476655 Electromagnetic-radiation-emitting optoelectronic component and method for producing an optoelectronic component Jul. 2, 2013
8461611 Semiconductor light emitting device and method for manufacturing the same Jun. 11, 2013
8455282 Method of manufacturing vertical light emitting diode with dual surface pattern to improve light extraction Jun. 4, 2013
8450762 Light emitting device May. 28, 2013
8436384 Semiconductor light emitting device and method for manufacturing the same May. 7, 2013
8431943 Light transmitting substrate, method for manufacturing light transmitting substrate, organic LED element and method for manufacturing organic LED element Apr. 30, 2013
8420436 Method for manufacturing solar cell, etching device, and CVD device Apr. 16, 2013
8421098 Semiconductor light emitting device having a roughness on a channel layer Apr. 16, 2013
8421107 Group-III nitride semiconductor light emitting device and production method thereof, and lamp Apr. 16, 2013
8421108 Semiconductor light emitting device and method for manufacturing the same Apr. 16, 2013
8415709 Organic light-emitting display device Apr. 9, 2013
8415697 Light emitting element, method for manufacturing same, and light emitting device Apr. 9, 2013
8415692 LED packages with scattering particle regions Apr. 9, 2013
8410490 LED with current confinement structure and surface roughening Apr. 2, 2013
8410499 LED with a current confinement structure aligned with a contact Apr. 2, 2013
8405106 Light-emitting device Mar. 26, 2013
8405113 Semiconductor light-emitting device Mar. 26, 2013
8399944 Light emitting diode and method for fabricating the same Mar. 19, 2013
8395173 Semiconductor light-emitting element, method of manufacturing same, and light-emitting device Mar. 12, 2013
8384104 Light emitting device, light emitting device package and lighting system including the same Feb. 26, 2013

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