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Class Information
Number: 257/E31.004
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)
Description: This subclass is indented under subclass E31.003. This subclass is substantially the same in scope as ECLA classification H01L31/0264.










Sub-classes under this class:

Class Number Class Name Patents
257/E31.005 In different semiconductor regions (e.g., cu 2 x/cdx heterojunction and x being group vi element) (epo) 18
257/E31.026 Including, apart from doping material or other impurity, only compound other than group ii-vi, iii-v, and iv compound (epo) 79
257/E31.015 Including, apart from doping material or other impurity, only group ii-vi compound (e.g., cds, zns, hgcdte) (epo) 37
257/E31.019 Including, apart from doping material or other impurity, only group iii-v compound (epo) 49
257/E31.023 Including, apart from doping material or other impurity, only group iv compound (e.g., sic) (epo) 22
257/E31.011 Including, apart from doping material or other impurity, only group iv element (epo) 31
257/E31.008 Selenium or tellurium (epo) 48


Patents under this class:

Patent Number Title Of Patent Date Issued
8674210 Photoelectric conversion device and manufacturing method of the same Mar. 18, 2014
8633496 Optical device and semiconductor wafer Jan. 21, 2014
8618411 Method of making photovoltaic cell Dec. 31, 2013
8586999 Apparatus pertaining to a core of wide band-gap material having a graphene shell Nov. 19, 2013
8563855 Tandem photovoltaic cell Oct. 22, 2013
8530995 High operating temperature split-off band infrared detector with double and/or graded barrier Sep. 10, 2013
8502065 Photovoltaic device including flexible or inflexibel substrate and method for manufacturing the same Aug. 6, 2013
8470636 Aqueous process for producing crystalline copper chalcogenide nanoparticles, the nanoparticles so-produced, and inks and coated substrates incorporating the nanoparticles Jun. 25, 2013
8471301 Photoelectric conversion device having embedded recess regions arranged in light-receiving surface Jun. 25, 2013
8440905 Copper complex dye sensitized solar cell May. 14, 2013
8436332 Electron emission element and imaging device having the same May. 7, 2013
8426241 Structure and method of fabricating a CZTS photovoltaic device by electrodeposition Apr. 23, 2013
8405097 Optical sensor Mar. 26, 2013
8383930 Solar cell and method for producing solar cell Feb. 26, 2013
8222635 Method for manufacturing an organic light emitting device as well as such a device Jul. 17, 2012
8138567 Materials, fabrication equipment, and methods for stable, sensitive photodetectors and image sensors made therefrom Mar. 20, 2012
8129211 Dye-sensitized solar cell comprising metal oxide nanoball layer and preparation method thereof Mar. 6, 2012
7999178 Solar cell and method of producing the same Aug. 16, 2011
7696593 PIN-type photo detecting element with three semiconductor layers, and window semiconductor layer having controlled thickness Apr. 13, 2010
7687304 Current-driven device using NiMn alloy and method of manufacture Mar. 30, 2010
7274061 Capacitor constructions Sep. 25, 2007
7274059 Capacitor constructions Sep. 25, 2007
7220991 Thin film transistor array panel for liquid crystal display May. 22, 2007
6933503 Imaging X-ray detector based on direct conversion Aug. 23, 2005
6888175 Compound semiconductor structure with lattice and polarity matched heteroepitaxial layers May. 3, 2005
6194769 Sensor devices comprising field-structured composites Feb. 27, 2001
5382787 Photoconductive material Jan. 17, 1995











 
 
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