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Class Information
Number: 257/421
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Responsive to non-electrical signal (e.g., chemical, stress, light, or magnetic field sensors) > Magnetic field
Description: Subject matter wherein the non-electrical signal to which the active solid-state device responds, is a magnetic field.
Sub-classes under this class:
| Class Number |
Class Name |
Patents |
| 257/423 |
Bipolar transistor magnetic field sensor (e.g., lateral bipolar transistor) |
86 |
| 257/426 |
Differential output (e.g., with offset adjustment means or with means to reduce temperature sensitivity) |
58 |
| 257/425 |
Magnetic field detector using compound semiconductor material (e.g., gaas, insb, etc.) |
90 |
| 257/427 |
Magnetic field sensor in integrated circuit (e.g., in bipolar transistor integrated circuit) |
172 |
| 257/424 |
Sensor with region of high carrier recombination (e.g., magnetodiode with carriers deflected to recombination region by magnetic field) |
42 |
| 257/422 |
With magnetic field directing means (e.g., shield, pole piece, etc.) |
194 |
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7622735 |
Wafer for electrically characterizing tunnel junction film stacks with little or no processing |
Nov. 24, 2009 |
| 7622784 |
MRAM device with improved stack structure and offset field for low-power toggle mode writing |
Nov. 24, 2009 |
| 7615836 |
Magnetic self-assembly for integrated circuit packages |
Nov. 10, 2009 |
| 7612424 |
Nanoelectromechanical bistable cantilever device |
Nov. 3, 2009 |
| 7608901 |
Spin transistor using stray magnetic field |
Oct. 27, 2009 |
| 7605437 |
Spin-transfer MRAM structure and methods |
Oct. 20, 2009 |
| 7606063 |
Magnetic memory device |
Oct. 20, 2009 |
| 7602032 |
Memory having cap structure for magnetoresistive junction and method for structuring the same |
Oct. 13, 2009 |
| 7602000 |
Spin-current switched magnetic memory element suitable for circuit integration and method of fabricating the memory element |
Oct. 13, 2009 |
| 7598578 |
Magnetic element and signal processing device |
Oct. 6, 2009 |
| 7598579 |
Magnetic tunnel junction (MTJ) to reduce spin transfer magnetization switching current |
Oct. 6, 2009 |
| 7598577 |
Magnetic memory device |
Oct. 6, 2009 |
| 7595520 |
Capping layer for a magnetic tunnel junction device to enhance dR/R and a method of making the same |
Sep. 29, 2009 |
| 7582942 |
Planar flux concentrator for MRAM devices |
Sep. 1, 2009 |
| 7582941 |
Magnetic memory device and method of fabricating the same |
Sep. 1, 2009 |
| 7582892 |
Optically controlled switching methods based upon the polarization of electromagnetic radiation incident upon carbon nanotubes and electrical-switch systems using such switch devices |
Sep. 1, 2009 |
| 7579196 |
Interconnect connecting a diffusion metal layer and a power plane metal and fabricating method thereof |
Aug. 25, 2009 |
| 7569902 |
Enhanced toggle-MRAM memory device |
Aug. 4, 2009 |
| 7569877 |
System and method based on field-effect transistors for addressing nanometer-scale devices |
Aug. 4, 2009 |
| 7566941 |
Magnetoresistive memory cell and process for producing the same |
Jul. 28, 2009 |
| 7564109 |
MRAM and method of manufacturing the same |
Jul. 21, 2009 |
| 7564110 |
Electrical lapping guides made from tunneling magnetoresistive (TMR) material |
Jul. 21, 2009 |
| 7554145 |
Magnetic memory cells and manufacturing methods |
Jun. 30, 2009 |
| 7554837 |
Magnetic memory device |
Jun. 30, 2009 |
| 7545013 |
Reconfigurable logic circuit using a transistor having spin-dependent transfer characteristics |
Jun. 9, 2009 |
| 7545672 |
Spin injection write type magnetic memory device |
Jun. 9, 2009 |
| 7538402 |
Magnetoresistive device and magnetic memory using the same |
May. 26, 2009 |
| 7539051 |
Memory storage devices comprising different ferromagnetic material layers, and methods of making and using the same |
May. 26, 2009 |
| 7535069 |
Magnetic tunnel junction with enhanced magnetic switching characteristics |
May. 19, 2009 |
| 7535070 |
Spin-wave architectures |
May. 19, 2009 |
| 7531882 |
Spin transfer magnetic element with free layers having high perpendicular anisotropy and in-plane equilibrium magnetization |
May. 12, 2009 |
| 7531883 |
Magneto-resistance transistor and method thereof |
May. 12, 2009 |
| 7532502 |
Spin injection magnetic domain wall displacement device and element thereof |
May. 12, 2009 |
| 7532504 |
Spin injection magnetic domain wall displacement device and element thereof |
May. 12, 2009 |
| 7528457 |
Method to form a nonmagnetic cap for the NiFe(free) MTJ stack to enhance dR/R |
May. 5, 2009 |
| 7527983 |
Ferromagnetic material |
May. 5, 2009 |
| 7528456 |
Nano-scale computational architectures with spin wave bus |
May. 5, 2009 |
| 7525166 |
Memory element and memory |
Apr. 28, 2009 |
| 7521743 |
Nonvolatile magnetic memory device and photomask |
Apr. 21, 2009 |
| 7510883 |
Magnetic tunnel junction temperature sensors and methods |
Mar. 31, 2009 |
| 7511351 |
Semiconductor device and method for fabricating the same |
Mar. 31, 2009 |
| 7508042 |
Spin transfer MRAM device with magnetic biasing |
Mar. 24, 2009 |
| 7508700 |
Method of magnetic tunneling junction pattern layout for magnetic random access memory |
Mar. 24, 2009 |
| 7505308 |
Systems involving spin-transfer magnetic random access memory |
Mar. 17, 2009 |
| 7504898 |
High-frequency oscillator with a stacked film including a magnetization pinned layer |
Mar. 17, 2009 |
| 7501688 |
Spin injection magnetization reversal element |
Mar. 10, 2009 |
| 7495303 |
Magnetic elements with spin engineered insertion layers and MRAM devices using the magnetic elements |
Feb. 24, 2009 |
| 7492022 |
Non-magnetic semiconductor spin transistor |
Feb. 17, 2009 |
| 7485937 |
Tunnel junction device |
Feb. 3, 2009 |
| 7480173 |
Spin transfer MRAM device with novel magnetic free layer |
Jan. 20, 2009 |
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