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Class Information
Number: 257/E43.001
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Semiconductor or solid-state devices using galvano-magnetic or similar magnetic effects, processes or apparatus peculiar to manufacture or treatment of such devices, or of parts thereof (epo)
Description: This main group provides for semiconductor or solid state devices which respond to a magnetic field signal, processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof. This subclass is substantially the same in scope as ECLA classification H01L43/00.

Sub-classes under this class:

Class Number Class Name Patents
257/E43.002 Hall-effect devices (epo) 37
257/E43.004 Magnetic-field-controlled resistors (epo) 348
257/E43.006 Processes or apparatus peculiar to manufacture or treatment of these devices or of parts thereof (epo) 165
257/E43.005 Selection of materials (epo) 178

Patents under this class:

Patent Number Title Of Patent Date Issued
8710605 Magnetic memory and method of manufacturing the same Apr. 29, 2014
8680592 Method of forming a magnetic tunnel junction device Mar. 25, 2014
8563966 Nano metal particles based tunneling field effect transistor and nano-switch Oct. 22, 2013
8564079 STT MRAM magnetic tunnel junction architecture and integration Oct. 22, 2013
8541855 Co/Ni multilayers with improved out-of-plane anisotropy for magnetic device applications Sep. 24, 2013
8519495 Single line MRAM Aug. 27, 2013
8466526 Hall sensor for eliminating offset voltage Jun. 18, 2013
8264052 Symmetric STT-MRAM bit cell design Sep. 11, 2012
8254164 Semiconductor device using magnetic domain wall movement Aug. 28, 2012
8199568 Method and apparatus for a disk damper including an enclosing flow chamber wall for a hard disk drive Jun. 12, 2012
8193598 Spin-wave architectures Jun. 5, 2012
8178361 Magnetic sensor and manufacturing method therefor May. 15, 2012
8124952 Programmable resistive memory cell with filament placement structure Feb. 28, 2012
8003497 Diluted magnetic semiconductor nanowires exhibiting magnetoresistance Aug. 23, 2011
8004874 Multi-terminal resistance device Aug. 23, 2011
7999360 Underlayer for high performance magnetic tunneling junction MRAM Aug. 16, 2011
7960186 Method of forming ferromagnetic material, transistor and method of manufacturing the same Jun. 14, 2011
7936044 Non-volatile memory devices and methods of fabricating the same May. 3, 2011
7928524 Magnetoresistive element Apr. 19, 2011
7897955 Programmable resistive memory cell with filament placement structure Mar. 1, 2011
7893511 Integrated circuit, memory module, and method of manufacturing an integrated circuit Feb. 22, 2011
7889533 Semiconductor device using magnetic domain wall movement and method of manufacturing the same Feb. 15, 2011
7759713 Ferroelectric tunneling element and memory applications which utilize the tunneling element Jul. 20, 2010
7719071 Bipolar spin transistors and the applications of the same May. 18, 2010
7714399 Magnetic memory element and magnetic memory apparatus May. 11, 2010
7705340 Inflected magnetoresistive structures and memory cells having inflected magnetoresistive structures Apr. 27, 2010
7687284 Magnetic sensor and manufacturing method therefor Mar. 30, 2010
7683444 Metamaterial structure has resonant and strip line elements comprising a photoconductive semiconductor material formed on substrate to induce negative permeability and negative permittivity in Mar. 23, 2010
7679155 Multiple magneto-resistance devices based on doped magnesium oxide Mar. 16, 2010
7608901 Spin transistor using stray magnetic field Oct. 27, 2009
7598578 Magnetic element and signal processing device Oct. 6, 2009
7535070 Spin-wave architectures May. 19, 2009
7528456 Nano-scale computational architectures with spin wave bus May. 5, 2009
7501302 Electromagnetic micro-generator and method for manufacturing the same Mar. 10, 2009
7494900 Back side wafer dicing Feb. 24, 2009
7470925 Magnetic body, magnetic device using the same, and method of manufacturing the same Dec. 30, 2008
7342244 Spintronic transistor Mar. 11, 2008
7315041 Switching devices based on half-metals Jan. 1, 2008
7309904 Semiconductor device, magnetic sensor, and magnetic sensor unit Dec. 18, 2007
7274080 MgO-based tunnel spin injectors Sep. 25, 2007
7238540 Magnetic random access memory and method of manufacturing the same Jul. 3, 2007
7126202 Spin scattering and heat assisted switching of a magnetic element Oct. 24, 2006
7034374 MRAM layer having domain wall traps Apr. 25, 2006
7026677 Magnetoresistive element, magnetic memory cell, and magnetic memory device, and method for manufacturing the same Apr. 11, 2006
5191223 Device for selective magnetization and method Mar. 2, 1993
4823177 Method and device for magnetizing thin films by the use of injected spin polarized current Apr. 18, 1989
4503394 Magnetoresistive sensor having a closed domain structure and electrode biasing Mar. 5, 1985
4132970 Potentiometer Jan. 2, 1979
4061988 Hall effect linear motion switch Dec. 6, 1977

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