Patent application number | Description | Published |
20100323100 | CONTROLLING THICKNESS UNIFORMITY AND INTERFACES IN STACKS - A method of creating a stack having multiple layers of deposited film onto a substrate is discussed. The method includes depositing a first layer of a first material onto the substrate and depositing a second layer onto the first layer. Depositing the second layer includes depositing a first amount of the second material onto the first layer at a first deposition temperature selected to set the normalized diffusion activation energy of the second material. | 12-23-2010 |
20110241666 | MAGNETIC ELEMENT WITH IMPROVED AREAL RESOLUTION - An apparatus and associated method for a magnetic element capable of detecting changes in magnetic states. Various embodiments of the present invention are generally directed to a free layer that has a first areal extent that is sensitive to a magnetic field and a synthetic antiferromagnetic (SAF) layer adjacent to the free layer and has a second areal extent that is greater than the first areal extent. | 10-06-2011 |
20110268991 | HEAD WITH HIGH READBACK RESOLUTION - An apparatus that includes a first read shield and a second read shield and a reader stack between the first and second read shields. The first and second read shields each include a thin high permeability layer closest to the reader stack and a low permeability layer and/or a geometric feature to control magnetic field flux lines in a free layer of the reader stack. | 11-03-2011 |
20120276415 | Magnetic Element With Reduced Shield-To-Shieldl Spacing - A magnetic element has a magnetically responsive lamination with a ferromagnetic free layer separated from a synthetic antiferromagnetic (SAF) layer by a spacer layer and from a sensed data bit stored in an adjacent medium by an air bearing surface (ABS). The lamination is coupled to at least one antiferromagnetic (AFM) tab a predetermined offset distance from the ABS. | 11-01-2012 |
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 |
20130288076 | STACK WITH WIDE SEED LAYER - A stack having a seed layer structure with a first part having a first cross-track width and a free layer deposited over the seed layer structure and with a second cross-track width, wherein the first cross-track width is greater than the second cross-track width. In one implementation, the seed layer structure further comprises an antiferromagnetic (AFM) layer and a synthetic antiferromagnetic (SAF) layer. In one alternate implementation, the cross-track width of the seed layer structure is substantially equal to the combined cross-track width of the free layer and cross-track width of two permanent magnets. | 10-31-2013 |
20140055884 | MAGNETIC STACK WITH SEPARATED CONTACTS - An apparatus for two dimensional reading may be constructed, in accordance with some embodiments, with a number of magnetic stacks respectively configured to engage adjacent data tracks of a data storage media. Each magnetic stack can be disposed between top and bottom shields while each shield is segmented into a number of contacts different than the number of magnetic stacks. | 02-27-2014 |
20140106183 | MAGNETIC READER WITH TUNED ANISOTROPY - Various embodiments may be generally directed to a stack capable of reading magnetic data bits. Such a stack can have a non-magnetic spacer layer disposed between a magnetically free layer and a synthetic antiferromagnet (SAF) where the SAF is configured with an anisotropy tuned to a non-normal direction with respect to an air bearing surface (ABS). | 04-17-2014 |
20140146418 | SIDE SHIELD BIASING LAYER SEPARATED FROM AN AIR BEARING SURFACE - Various embodiments may configure a data storage device with at least a magnetic element having a magnetic stack that is configured with an air bearing surface (ABS) and is separated from a side shield. The side shield can be biased by a biasing layer that contacts the side shield and is separated from the ABS. | 05-29-2014 |
20140146419 | MAGNETIC ELEMENT WITH CROSSED ANISOTROPIES - A magnetic element may be configured with at least a magnetic stack having first and second magnetically free layers that each has a predetermined stripe height from an air bearing surface (ABS). The first and second magnetically free layers can respectively be configured with first and second uniaxial anisotropies that are crossed in relation to the ABS and angled in response to the predetermined stripe height. | 05-29-2014 |
20140153137 | Magnetic Element with Coupled Side Shield - A magnetic element may be constructed in accordance with various embodiments as a data reader. The magnetic element can have at least a magnetic reader that contacts a top shield and is separated from a side shield on an air bearing surface (ABS). The side shield may be antiferromagnetically coupled to the top shield via a coupling layer disposed between the top and side shields. | 06-05-2014 |
20140160596 | DATA STORAGE DEVICE WITH VARIABLE ANISOTROPY SIDE SHIELD - Various embodiments may be generally directed to a data storage device with at least a magnetic element having a magnetic stack positioned adjacent to and separated from at least one side shield on an air bearing surface (ABS). The side shield can be configured with a predetermined anisotropy variation along a down-track direction. | 06-12-2014 |
20140168818 | READ SENSOR FOR RECORDING HEAD - Implementations described and claimed herein provide a read sensor structure having a synthetic anti-ferromagnetic (SAF) structure with a pinning that is canted with respect to an air bearing surface (ABS) of the read sensor. In an implementation of the read sensor, the angle between the pinning direction of a reference layer (RL) and the pinning direction of a free layer (FL) is obtuse. | 06-19-2014 |
20140218823 | Magnetic Element With A Bi-Layer Side Shield - A magnetic element is generally provided that can be implemented as a data reader. Various embodiments may connect a magnetic stack to a top shield and separate the magnetic stack from a bi-layer side shield. The bi-layer side shield may have a fixed magnetization layer and a soft magnetic layer each magnetically isolated from the top shield. | 08-07-2014 |
20140218825 | SIDE SHIELD PEDESTAL FOR DATA READERS - Various embodiments may be generally directed to a magnetic element capable of reading magnetic data bits. Such a magnetic element may have at least a magnetic stack laterally adjacent a side shield and non-magnetic pedestal on an air bearing surface (ABS). The non-magnetic pedestal can be configured to have a greater stripe height from the ABS than the side shield. | 08-07-2014 |
20140254047 | READER WITH DECOUPLED MAGNETIC SEED LAYER - An apparatus comprising a base shield and a sensor stack, wherein the base shield is separated from the sensor stack via a first soft magnetic layer that is magnetically decoupled form the base shield. | 09-11-2014 |
20140327989 | Side Shield Biasing Layer Separated from an Air Bearing Surface - Various embodiments may configure a data storage device with at least a magnetic element having a magnetic stack that is configured with an air bearing surface (ABS) and is separated from a side shield. The side shield can be biased by a biasing layer that contacts the side shield and is separated from the ABS. | 11-06-2014 |
20140334042 | READER WITH DECOUPLED MAGNETIC SEED LAYER - An apparatus comprising a base shield and a sensor stack, wherein the base shield is separated from the sensor stack via a first soft magnetic layer that is magnetically decoupled form the base shield. | 11-13-2014 |
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 |
20140356648 | STACK WITH WIDE SEED LAYER - A stack having a seed layer structure with a first part having a first cross-track width and a free layer deposited over the seed layer structure and with a second cross-track width, wherein the first cross-track width is greater than the second cross-track width. In one implementation, the seed layer structure further comprises an antiferromagnetic (AFM) layer and a synthetic antiferromagnetic (SAF) layer. In one alternate implementation, the cross-track width of the seed layer structure is substantially equal to the combined cross-track width of the free layer and cross-track width of two permanent magnets. | 12-04-2014 |
20150036245 | MAGNETORESISTIVE SENSOR - An apparatus disclosed herein comprises a magnetically free layer and a bottom shield, wherein a first portion of the bottom shield substantially adjacent the free layer is pinned perpendicular to an air-bearing surface (ABS) of the apparatus and a second portion of the bottom shield not substantially adjacent the free layer is pinned parallel to the ABS of the apparatus. | 02-05-2015 |
20150036246 | MAGNETORESISTIVE SENSOR SHIELD - Implementations disclosed herein allow a signal detected by a magnetoresistive (MR) sensor to be improved by providing for a region of reduced anisotropy within a synthetic antiferromagnetic (SAF) shield. The SAF shield includes first and second layers of ferromagnetic material separated by a coupling spacer layer. A distance between the first and second layers of ferromagnetic material is greater in a region proximal to the sensor stack than in a region away from the sensor stack. | 02-05-2015 |
20150055251 | READER STRUCTURE - An apparatus disclosed herein includes a sensor with a free layer having cross-track easy axis anisotropy. | 02-26-2015 |
20150062735 | DUAL READER STRUCTURE - Implementations described and claimed herein provide a stacked dual reader with a bottom sensor stack and a top sensor stack wherein the bottom sensor stack and the top sensor stack are mirrored along a down-track direction. | 03-05-2015 |
20150062755 | DUAL READER STRUCTURE - Implementations described and claimed herein provide a dual reader wherein a bottom shield is attached to side shields. | 03-05-2015 |