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Class Information
Number: 257/E31.023
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Semiconductor devices responsive or sensitive to electromagnetic radiation (e.g., infrared radiation, adapted for conversion of radiation into electrical energy or for control of electrical energy by such radiation processes, or apparatus peculiar to manufacture or treatment of such devices, or of parts thereof) (epo) > Characterized by semiconductor body (epo) > Characterized by semiconductor body material (epo) > Inorganic materials (epo) > Including, apart from doping material or other impurity, only group iv compound (e.g., sic) (epo)
Description: This subclass is indented under subclass E31.004. This subclass is substantially the same in scope as ECLA classification H01L31/0312.










Sub-classes under this class:

Class Number Class Name Patents
257/E31.025 Characterized by doping material (epo) 1
257/E31.024 For device having potential or surface barrier (epo) 19


Patents under this class:

Patent Number Title Of Patent Date Issued
8390086 Solar cell employing a nanowire Mar. 5, 2013
8338833 Method of producing silicon carbide semiconductor substrate, silicon carbide semiconductor substrate obtained thereby and silicon carbide semiconductor using the same Dec. 25, 2012
8318545 Method of making a mounted gallium nitride device Nov. 27, 2012
8252624 Method of manufacturing thin film solar cells having a high conversion efficiency Aug. 28, 2012
8242585 Semiconductor device and method for manufacturing the same Aug. 14, 2012
8173459 Light emitting device having isolating insulative layer for isolating light emitting cells from each other and method of fabricating the same May. 8, 2012
8134179 Photodiode with a reduced dark current and method for the production thereof Mar. 13, 2012
8101901 Method and apparatus for acquiring physical information, method for manufacturing semiconductor device including array of a plurality of unit components for detecting physical quantity distrib Jan. 24, 2012
8097524 Lightly doped silicon carbide wafer and use thereof in high power devices Jan. 17, 2012
8035186 Low-noise semiconductor photodetectors Oct. 11, 2011
7989926 Semiconductor device including non-stoichiometric silicon carbide layer and method of fabrication thereof Aug. 2, 2011
7851278 Semiconductor device and method for manufacturing the same Dec. 14, 2010
7834412 Low dark current image sensors by substrate engineering Nov. 16, 2010
6713762 Acoustic absorption electromagnetic radiation sensing with SIC Mar. 30, 2004
6362495 Dual-metal-trench silicon carbide Schottky pinch rectifier Mar. 26, 2002
6239432 IR radiation sensing with SIC May. 29, 2001
6204522 Switching device Mar. 20, 2001
6194699 Photoconductive switch with multiple layers Feb. 27, 2001
5360491 .beta.-silicon carbide protective coating and method for fabricating same Nov. 1, 1994
5341000 Thin silicon carbide layer on an insulating layer Aug. 23, 1994
5200805 Silicon carbide:metal carbide alloy semiconductor and method of making the same Apr. 6, 1993
5049950 MIS structure photosensor Sep. 17, 1991











 
 
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