Patent application number | Description | Published |
20100102289 | NONVOLATILE RESISTIVE MEMORY DEVICES - Nonvolatile resistive memory devices are disclosed. In some embodiments, the memory devices comprise multilayer structures including electrodes, one or more resistive storage layers, and separation layers. The separation layers insulate the resistive storage layers to prevent charge leakage from the storage layers and allow for the use of thin resistive storage layers. In some embodiments, the nonvolatile resistive memory device includes a metallic multilayer comprising two metallic layers about an interlayer. A dopant at an interface of the interlayer and metallic layers can provide a switchable electric field within the multilayer. | 04-29-2010 |
20100232072 | MAGNETIC SENSOR WITH A RECESSED REFERENCE LAYER ASSEMBLY AND A FRONT SHIELD - A magnetic sensor includes a freelayer, a reference layer and a front shield. The freelayer has a magnetization direction substantially perpendicular to the planar orientation of the layer and extends to the media confronting surface. The reference layer has a magnetization direction substantially in the plane of the layer and substantially perpendicular to the magnetization direction of the freelayer. The reference layer is recessed from the media confronting surface and a front shield is positioned between the reference layer and the media confronting surface thereby reducing the shield-to-shield spacing and increasing the areal density of the reader. | 09-16-2010 |
20110228428 | TRILAYER READER WITH CURRENT CONSTRAINT AT THE ABS - A magnetoresistive read sensor with improved sensitivity and stability is described. The sensor is a trilayer stack positioned between two electrodes. The trilayer stack has two free layers separated by a nonmagnetic layer and a biasing magnet positioned at the rear of the stack and separated from the air bearing surface by the stripe height distance. Current in the sensor is confined to regions close to the air bearing surface by an insulator layer to enhance reader sensitivity. | 09-22-2011 |
20120134057 | Magnetic Element with Improved Stability - A magnetic element capable of detecting changes in magnetic states, such as for use as a read sensor in a data transducing head or as a solid-state non-volatile memory element. In accordance with various embodiments, the magnetic element includes a magnetically responsive stack or lamination with a first areal extent. The stack includes a spacer layer positioned between first and second ferromagnetic free layers. At least one antiferromagnetic (AFM) tab is connected to the first free layer on a surface thereof opposite the spacer layer, the AFM tab having a second areal extent that is less than the first areal extent. | 05-31-2012 |
20120268846 | Magnetic Element With Enhanced Coupling Portion - An apparatus and associated method may be used to produce a magnetic element capable of detecting changes in magnetic states. Various embodiments of the present invention are generally directed to a magnetically responsive lamination of layers with a first portion and a laterally adjacent second portion. The second portion having a predetermined roughness between at least two layers capable of producing orange-peel coupling. | 10-25-2012 |
20130050876 | MAGNETIC SENSORS HAVING PERPENDICULAR ANISOTROPY FREE LAYER - Disclosed herein are magnetic sensors that include: a sensor stack having a front and an opposing back, wherein the front of the sensor stack defines an air bearing surface of the magnetic sensor, and the sensor stack includes: a free layer assembly having a second magnetization direction, that is substantially perpendicular to a plane of each layer of the sensor stack; and a stabilizing structure positioned away from the air bearing surface at the back of the sensor stack. | 02-28-2013 |
20130065084 | Tuned Shunt Ratio For Magnetic Sensors - Various embodiments can have a data read stack positioned on an air bearing surface (ABS). The data read stack may be disposed between first and second buffer layers, where at least one of the buffer layers can be configured to provide a predetermined shunt ratio for the data read stack. | 03-14-2013 |
20130065085 | Tuned Angled Uniaxial Anisotropy in Trilayer Magnetic Sensors - Various embodiments may be constructed with a trilayer stack that is positioned on an air bearing surface (ABS). The trilayer stack can be configured with a stripe height along an axis orthogonal to the ABS and with first and second magnetic free layers that each has an angled uniaxial anisotropy with respect to the ABS. | 03-14-2013 |
20130069642 | Magnetic Sensor With Conducting Bevel - Various embodiments can have a magnetically responsive stack positioned on an air bearing surface (ABS) and disposed between at least first and second magnetic shields. Each magnetic shield may have a beveled portion distal to the ABS. The magnetically responsive stack can have a cross-track magnetization anisotropy proximal to the ABS. | 03-21-2013 |
20140001585 | MAGNETIC STACK WITH ORTHOGONAL BIASING LAYER | 01-02-2014 |
20140002930 | MAGNETIC ELEMENT WITH BIASED SIDE SHIELD LAMINATION | 01-02-2014 |
20140004385 | MAGNETIC ELEMENT WITH TOP SHIELD COUPLED SIDE SHIELD LAMINATION | 01-02-2014 |
20140004386 | Magnetic Element with Biasing Structure Distal the Air Bearing Surface | 01-02-2014 |
20140268428 | COUPLING FEATURE IN A TRILAYER LAMINATION - A data storage device may be generally directed to a data transducing head capable of magnetoresistive data reading. Such a data transducing head may be configured with at least a trilayer reader that contacts and is biased by a coupling feature. The coupling feature may have a smaller extent from an air bearing surface (ABS) than the trilayer reader. | 09-18-2014 |
20140340792 | Magnetic Element with Biasing Structure Distal the Air Bearing Surface - An apparatus can be generally directed to a magnetic stack having a magnetically free layer positioned on an air bearing surface (ABS). The magnetically free layer can be biased to a predetermined magnetization in various embodiments by a biasing structure that is coupled with the magnetically free layer and positioned distal the ABS. | 11-20-2014 |
20140340793 | MAGNETORESISTIVE SENSOR - Implementations disclosed herein allow a signal detected by a magnetoresistive (MR) sensor to be improved by providing for one or more regions of reduced anisotropy proximal to a sensor stack within a shielding structure. | 11-20-2014 |
20150062757 | Magnetic Stack with Different Areal Extents on an Air Bearing Surface - A data reader may be configured at least with a magnetic stack that has a first magnetic layer separated from a second magnetic layer by a non-magnetic spacer layer. The first magnetic layer may have an areal extent on an air bearing surface (ABS) that differs from the second magnetic layer while the second magnetic layer can be configured with a first plurality of linear sidewalls that are each angled with respect to a second plurality of linear sidewalls of the first magnetic layer. | 03-05-2015 |
20150070799 | Depolarizing Layer in a Magnetic Stack - A data reader may be configured at least with a magnetic stack positioned on an air bearing surface (ABS) and contacting a spin depolarizing layer that is a minority spin current carrier. The spin depolarizing layer can have a thickness and spin diffusion length corresponding to a net zero spin polarization at an interface of the magnetic stack and spin depolarizing layer. | 03-12-2015 |
20150070800 | Injector Stack with Diffusive Layer - A data reader may be configured at least with detector and injector stacks that each has a common spin accumulation layer. The detector stack may positioned on an air bearing surface (ABS) while the injector stack is positioned distal the ABS. The injector stack can have a diffusive layer with a larger spin diffusion length than mean free path. | 03-12-2015 |