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Class Information
Number: 257/E33.001
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
Description: This main group provides for semiconductor devices with at least one potential-jump barrier or surface barrier adapted for light emission, e.g. infra-red emission, and processes or apparatus peculiar to the manufacture or treatment of such devices or of parts thereof. This subclass is substantially the same in scope as ECLA classification H01L33/00.










Sub-classes under this class:

Class Number Class Name Patents
257/E33.055 Detail of nonsemiconductor component other than light-emitting semiconductor device (epo) 137
257/E33.002 Device characterized by semiconductor body (epo) 81
257/E33.044 Device characterized by their operation (epo) 73


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
8710523 Device chip carriers, modules, and methods of forming thereof Apr. 29, 2014
8710614 Light receiving element with offset absorbing layer Apr. 29, 2014
8704267 Light-emitting display device Apr. 22, 2014
8704254 Light emitting device including a filter Apr. 22, 2014
8704208 Semiconductor light emitting device and method for manufacturing the same Apr. 22, 2014
8701592 Mask frame assembly, method of manufacturing the same, and method of manufacturing organic light-emitting display device using the mask frame assembly Apr. 22, 2014
8691674 Method for producing group 3-5 nitride semiconductor and method for producing light-emitting device Apr. 8, 2014
8692278 Light emitting device Apr. 8, 2014
8692716 Nano and micro based antennas and sensors and methods of making same Apr. 8, 2014
8686448 Light emitting device, electronic apparatus, and manufacturing method of light emitting device Apr. 1, 2014
8685764 Method to make low resistance contact Apr. 1, 2014
8686571 Bonding layer structure and method for wafer to wafer bonding Apr. 1, 2014
8679880 Thin film forming method and quantum dot device Mar. 25, 2014
8674351 Semiconductor device and semiconductor memory device Mar. 18, 2014
8674375 Roughened high refractive index layer/LED for high light extraction Mar. 18, 2014
8664672 Light emitting panel having a plurality of light emitting element arrays arranged in descending order of wavelength Mar. 4, 2014
8664682 Semiconductor light emitting device and method of fabricating the same Mar. 4, 2014
8659045 Light emitting device and methods for forming the same Feb. 25, 2014
8658439 Quantum dot phosphor for light emitting diode and method of preparing the same Feb. 25, 2014
8659048 Organic light emitting device Feb. 25, 2014
8653555 Vertical light-emitting diode Feb. 18, 2014
8646406 Mask assembly having a frame with support stick Feb. 11, 2014
8647902 Method of manufacturing array substrate for liquid crystal display device Feb. 11, 2014
8643033 Light emitting device array Feb. 4, 2014
8637329 Method for producing semiconductor optical integrated device Jan. 28, 2014
8637874 White light emitting diode (LED) lighting device driven by pulse current Jan. 28, 2014
8637876 Light emitting device and light emitting device package having the same Jan. 28, 2014
8637897 Semiconductor light emitting device having multi-cell array and method for manufacturing the same Jan. 28, 2014
8629458 Compound semiconductor light-emitting element Jan. 14, 2014
8624289 Optoelectronic component Jan. 7, 2014
8624276 Semiconductor light emitting device, method of manufacturing the same, and semiconductor light emitting device package using the same Jan. 7, 2014
8624274 Methods for forming a pixel of a micro-chip light-emitting diode light source and a plurality of light-emitting diode pixels arranged in a two-dimensional array Jan. 7, 2014
8624247 Organic light emitting diode display and manufacturing method thereof Jan. 7, 2014
8618546 Backplane for flat panel display apparatus, flat panel display apparatus, and method of manufacturing the backplane Dec. 31, 2013
8614450 Luminous devices, packages and systems containing the same, and fabricating methods thereof Dec. 24, 2013
8610135 Substrate for mounting light-emitting elements, light-emitting device, and method for manufacturing same Dec. 17, 2013
8604496 Optical semiconductor device Dec. 10, 2013
8598582 Organic light emitting display device Dec. 3, 2013
8598619 Semiconductor light emitting device having multi-cell array and method for manufacturing the same Dec. 3, 2013
8592842 Vertical light emitting diodes Nov. 26, 2013
8592849 LED light source and chromaticity adjustment method for LED light source Nov. 26, 2013
8587008 Light-emitting device Nov. 19, 2013
8587005 Nitride semiconductor light emitting device array Nov. 19, 2013
8581232 Semiconductor light emitting device and method for manufacturing the same Nov. 12, 2013
8581263 Laser-induced flaw formation in nitride semiconductors Nov. 12, 2013
8581264 Semiconductor body and method of producing a semiconductor body Nov. 12, 2013
8581265 Light-emitting device and electronic device including substrate having flexibility Nov. 12, 2013
8574935 Manufacturing method of solid state light emitting element Nov. 5, 2013
8569736 Light emitting diode Oct. 29, 2013
8569772 Light-emitting element and method of fabricating the same Oct. 29, 2013

1 2 3 4 5 6 7 8 9 10 11 12 13










 
 
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