Patent application number | Description | Published |
20090214896 | PERPENDICULAR RECORDING MAGNETIC MEDIA HAVING A GRANULAR MAGNETIC RECORDING LAYER AND AN AMORPHOUS SOFT UNDERLAYER - A perpendicular magnetic recording medium having a substrate, an amorphous soft underlayer of thickness 30 nm or greater, and a granular magnetic recording layer for perpendicular recording is disclosed. The granular magnetic recording layer includes a non-magnetic region between magnetic grains, wherein the non-magnetic region includes metal nitride or metal carbide and provides exchange decoupling between the magnetic grains. The perpendicular recording medium of this invention reduces DC noise and increases media signal-to-noise ratio; it reduces surface roughness, which in turn reduces the head-to-media spacing and the head-to-amorphous soft underlayer spacing. | 08-27-2009 |
20100081012 | PERPENDICULAR MEDIA WITH Cr-DOPED Fe-ALLOY-CONTAINING SOFT UNDERLAYER (SUL) FOR IMPROVED CORROSION PERFORMANCE - A perpendicular magnetic recording medium having a substrate, a Cr-doped Fe-alloy-containing underlayer containing about 8 to 18 at % Cr and a perpendicular recording magnetic layer, and a process for improving corrosion resistance of the recording medium and for manufacturing the recording medium are disclosed. | 04-01-2010 |
20100177439 | PERPENDICULAR MEDIA WITH REDUCED SIDE TRACK ERASURE - A media for perpendicular recording and a method of creating the media is provided. The media includes a hard recording layer and a soft underlayer (SUL). The SUL is composed of at least two anti-ferromagnetically coupled (AFC) sub-underlayers. The sub-underlayers respond to a magnetic field established during dynamic reversal with respective magnetic fields. The sub-underlayers are formed and disposed to differ in one or more magnetic moment, anisotropy, and thickness, so that their respective magnetic fields constructively interfere in one or more points in the hard recording layer, thereby reducing a total SUL magnetic field response to the dynamic reversal field approximately to zero at one or more points in the hard recording layer, which reduces side track erasure. | 07-15-2010 |
20100209737 | MAGNETIC RECORDING MEDIA WITH ENHANCED WRITABILITY AND THERMAL STABILITY - Aspects are directed to recording media with enhanced magnetic properties for improved writability. Examples can be included or related to methods, systems and components that allow for improved writability while reducing defects so as to obtain uniform magnetic properties such as uniformly high anisotropy and narrow switching field distribution. Some examples include a recording medium with an exchange tuning layer inserted between the hard layer and the soft, semi-soft or thin semi-hard layer so as to maximize the writability improvement of the media. Preferably, the exchange tuning layer is granular and reduces or optimizes the vertical coupling between the hard layer and the soft, semi-soft or semi-hard layer of a magnetic recording or storing device. | 08-19-2010 |
20100282413 | MULTICHAMBER PROCESSING WITH SIMULTANEAOUS WORKPIECE TRANSPORT AND GAS DELIVERY - A method for treating/processing substrates/workpieces in a multi-chamber treatment/processing apparatus, comprising:
| 11-11-2010 |
20110129692 | MAGNETIC ALLOY MATERIALS WITH HCP STABILIZED MICROSTRUCTURE, MAGNETIC RECORDING MEDIA COMPRISING SAME, AND FABRICATION METHOD THEREFOR - A magnetic recording medium comprises:
| 06-02-2011 |
20110143167 | Tilted Recording Media with L10 Magnetic Layer - Magnetic recording media having a magnetic layer with an easy magnetization axis lying about 35° out of plane of the magnetic layer is disclosed. This media has a reduced total magnetic layer thickness and higher signal, while improving the media signal-to-noise ratio (SNR). | 06-16-2011 |
20110223445 | METHOD & APPARATUS FOR MULTI-STAGE SPUTTER DEPOSITION OF UNIFORM THICKNESS LAYERS - A method of forming a uniform thickness layer of a selected material on a surface of a substrate comprises steps of:
| 09-15-2011 |
20120026626 | APPARATUS INCLUDING A PERPENDICULAR MAGNETIC RECORDING LAYER HAVING A CONVEX MAGNETIC ANISOTROPY PROFILE - An apparatus may include a first magnetic layer, a first exchange break layer formed on the first magnetic layer, a second magnetic layer formed on the first exchange break layer, a second exchange break layer formed on the second magnetic layer, and a third magnetic layer formed on the second exchange break layer. The first magnetic layer has a first magnetic anisotropy energy, H | 02-02-2012 |
20120070694 | Perpendicular Media with Cr-Doped Fe-Alloy Containing Soft Underlayer (SUL) - A perpendicular magnetic recording medium having a substrate, a Cr-doped Fe-alloy-containing underlayer containing about 8 to 18 at % Cr and a perpendicular recording magnetic layer, and a process for improving corrosion resistance of the recording medium and for manufacturing the recording medium are disclosed. | 03-22-2012 |
20130004796 | RECORDING LAYER FOR HEAT ASSISTED MAGNETIC RECORDING - A magnetic stack includes multiple granular layers, at least one of the multiple granular layers is a magnetic layer that includes exchange coupled magnetic grains separated by a segregant having Ms greater than 100 emu/cc. Each of the multiple granular layers have anisotropic thermal conductivity. | 01-03-2013 |