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Class Information
Number: 257/E21.09
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Processes or apparatus adapted for manufacture or treatment of semiconductor or solid-state devices or of parts thereof (epo) > Manufacture or treatment of semiconductor device (epo) > Device having at least one potential-jump barrier or surface barrier, e.g., pn junction, depletion layer, carrier concentration layer (epo) > Device having semiconductor body comprising group iv elements or group iii-v compounds with or without impurities, e.g., doping materials (epo) > Deposition of semiconductor material on substrate, e.g., epitaxial growth, solid phase epitaxy (epo)
Description: This subclass is indented under subclass E21.085. This subclass is substantially the same in scope as ECLA classification H01L21/20.










Sub-classes under this class:

Class Number Class Name Patents
257/E21.119 Characterized by the substrate (epo) 164
257/E21.133 Epitaxial re-growth of non-monocrystalline semiconductor material, e.g., lateral epitaxy by seeded solidific ation, solid-state crystallization, solid-state graphoepitaxy, explosive crystallization, grain growth in polycrystalline material (epo) 803
257/E21.131 Selective epilaxial growth, e.g., simultaneous deposition of mono- and non-mono semiconductor material (epo) 682
257/E21.114 Using liquid deposition (epo) 78
257/E21.091 Using physical deposition, e.g., vacuum deposition, sputtering (epo) 93
257/E21.101 Using reduction or decomposition of gaseous compound yielding solid condensate, i.e., chemical deposition (epo) 536


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number Title Of Patent Date Issued
8710511 AIN buffer N-polar GaN HEMT profile Apr. 29, 2014
8709922 Semiconductor device Apr. 29, 2014
8703587 Method of manufacturing of a semi-conductor element and semi-conductor element Apr. 22, 2014
8691612 Method of creating micro-scale silver telluride grains covered with bismuth nanoparticles Apr. 8, 2014
8691668 Dihalide germanium(II) precursors for germanium-containing film depositions Apr. 8, 2014
8691670 Methods of forming a semiconductor device Apr. 8, 2014
8685816 Methods of forming semiconductor devices by forming semiconductor channel region materials prior to forming isolation structures Apr. 1, 2014
8686408 Photoelectric conversion device, imaging device and production methods thereof Apr. 1, 2014
8685844 Sub-10 nm graphene nanoribbon lattices Apr. 1, 2014
8685842 Method of manufacturing semiconductor device Apr. 1, 2014
8680581 Method for producing group III nitride semiconductor and template substrate Mar. 25, 2014
8680576 CMOS device and method of forming the same Mar. 25, 2014
8680510 Method of forming compound semiconductor Mar. 25, 2014
8680509 Nitride semiconductor device and method of producing the same Mar. 25, 2014
8679951 Graphene-layered structure, method of preparing the same, and transparent electrode and transistor including graphene-layered structure Mar. 25, 2014
8679949 Silicon nanowire comprising high density metal nanoclusters and method of preparing the same Mar. 25, 2014
8679942 Strain engineered composite semiconductor substrates and methods of forming same Mar. 25, 2014
8679953 Crystalline REO template on silicon substrate Mar. 25, 2014
8673749 Semiconductor device manufacturing method Mar. 18, 2014
8674374 Silicon carbide semiconductor device and method for manufacturing same Mar. 18, 2014
8673750 Single crystal silicon TFTs made by lateral crystallization from a nanowire seed Mar. 18, 2014
8673401 Gallium ink and methods of making and using same Mar. 18, 2014
8673747 Method of fabricating semiconductor device Mar. 18, 2014
8673678 Process of making a thin-film photovoltaic device and thin-film photovoltaic device Mar. 18, 2014
8669122 Method for producing a magnetic tunnel junction and magnetic tunnel junction thus obtained Mar. 11, 2014
8669168 Method for reducing the concentration of oxygen, carbon, and silicon impurities on nitrogen-polar surfaces of gallium nitride Mar. 11, 2014
8669544 High efficiency broadband semiconductor nanowire devices and methods of fabricating without foreign catalysis Mar. 11, 2014
8664636 Nanostructured device Mar. 4, 2014
8664092 Method for cleaning silicon wafer, and method for producing epitaxial wafer using the cleaning method Mar. 4, 2014
8658492 Semiconductor power device integrated with ESD protection diodes Feb. 25, 2014
8658518 Techniques for metal gate work function engineering to enable multiple threshold voltage nanowire FET devices Feb. 25, 2014
8658520 Method of manufacturing semiconductor device Feb. 25, 2014
8653586 Superjunction device and method for manufacturing the same Feb. 18, 2014
8652918 Nitride semiconductor structure Feb. 18, 2014
8652945 Epitaxy of high tensile silicon alloy for tensile strain applications Feb. 18, 2014
8648351 Epitaxial substrate and method for manufacturing epitaxial substrate Feb. 11, 2014
8647904 Method for manufacturing nitride semiconductor device, nitride semiconductor light-emitting device, and light-emitting apparatus Feb. 11, 2014
8647929 Semiconductor devices and methods of manufacturing thereof Feb. 11, 2014
8647968 Method for producing a semiconductor layer Feb. 11, 2014
8643024 In-situ defect reduction techniques for nonpolar and semipolar (Al, Ga, In)N Feb. 4, 2014
8642996 Graphene nanoribbons and carbon nanotubes fabricated from SiC fins or nanowire templates Feb. 4, 2014
8642451 Active region patterning in double patterning processes Feb. 4, 2014
8643058 Electro-optical device including nanocrystals Feb. 4, 2014
8637931 finFET with merged fins and vertical silicide Jan. 28, 2014
8637383 Strain relaxation using metal materials and related structures Jan. 28, 2014
8637345 Methods of fabricating devices by low pressure cold welding Jan. 28, 2014
8633068 Vertical transistor actuation Jan. 21, 2014
8633092 Quantum well device Jan. 21, 2014
8633466 Compound semiconductor device, method for producing the same, and power supply Jan. 21, 2014
8633569 AlN inter-layers in III-N material grown on REO/silicon substrate Jan. 21, 2014

1 2 3 4 5 6 7 8 9 10 11 12 13 14










 
 
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