Patent classifications
G11B5/1871
Slider gas-bearing surface designs with leading-edge pockets
Disclosed herein are sliders that include at least one leading-edge pocket, data storage devices comprising such sliders, and methods of manufacturing such sliders. The at least one leading-edge pocket increases the amount of gas flowing into the leading edge area of the ABS, which can improve the performance of the slider in low-pressure environments, such as sealed helium data storage devices. The at least one leading-edge pocket can have a variety of shapes, sizes, and features to achieve the desired slider performance (e.g., fly height, stability, etc.) in low-pressure environments.
Filled-gap magnetic recording head and method of making
A magnetic head, according to one embodiment, includes a rowbar substrate having a tape support surface and a gap surface at a substrate edge. A closure is positioned opposite the gap surface of the rowbar substrate, the closure forming a portion of the tape support surface. A recessed gap region is interposed between the gap surface of the rowbar substrate and the closure, the recessed gap region having a recessed gap profile that extends between the gap surface of the rowbar substrate and the closure, the recessed gap region having a transducer row with at least one magnetic sensor on the gap surface of the rowbar substrate. An insulation layer is positioned over the recessed gap profile of the recessed gap region.
Tape head having sensors proximate to an edge
According to one embodiment, a method includes running a magnetic recording tape over an edge of a tape bearing surface of a module, where the edge is proximate to a sensor of the module, detecting magnetic fields from the magnetic recording tape at different wrap angles, and selecting one of the wrap angles of the magnetic recording tape to provide about a predefined height of tenting of the magnetic recording tape above the sensor.
Apparatus having an array of write transducers having a low friction interface
In one general embodiment, an apparatus includes a module having a tape bearing surface and an array of write transducers extending along the tape bearing surface. Each write transducer has a first write pole having a pole tip extending from a media facing side of the first write pole, a second write pole having a pole tip extending from a media facing side of the second write pole, a nonmagnetic write gap between the pole tips of the write poles, and a high moment layer between the pole tips of the write poles. The high moment layer has a higher magnetic moment than a magnetic moment of the pole tip of the second write pole. The tape bearing surface of the module has patterning, and/or a first tape tenting region where each write transducer is positioned in the first tape tenting region.
SLIDER GAS-BEARING SURFACE DESIGNS WITH LEADING-EDGE POCKETS
Disclosed herein are sliders that include at least one leading-edge pocket, data storage devices comprising such sliders, and methods of manufacturing such sliders. The at least one leading-edge pocket increases the amount of gas flowing into the leading edge area of the ABS, which can improve the performance of the slider in low-pressure environments, such as sealed helium data storage devices. The at least one leading-edge pocket can have a variety of shapes, sizes, and features to achieve the desired slider performance (e.g., fly height, stability, etc.) in low-pressure environments.
Tape head having sensors proximate to an edge
An apparatus includes a module having a tape bearing surface, a first edge, and a second edge, where a first tape tenting region of the tape bearing surface extends from the first edge along the tape bearing surface toward the second edge. A guide is positioned relative to the first edge for inducing tenting of a moving magnetic recording tape and to create a point of inflection of the moving magnetic recording tape at a location above the tape bearing surface that is about midway between a peak of the tenting and a point of closest approach of the moving magnetic recording tape to the tape bearing surface. A sensor is located in a thin film region of the module. The sensor has a free layer. The location of the point of inflection of the moving magnetic recording tape is between the free layer and the second edge.
DATA STORAGE TAPE CARTRIDGE
A data storage tape cartridge includes a housing having a reel within and rotatably supported by the housing. Two or more data storage tapes are wound up on the same rotary axis of the reel. Each subsequent winding of a first one of the tapes is separated from the previous winding of the first tape by at least another one of the other tapes. A leader pin is attached to a free end of each of the tapes. The leader pins may be connected to one another. The leader pins may be disconnected from one another as part of process for mounting the cartridge in a tape drive.
Tape head module having recessed portion(s) and air aperture(s) for providing an air bearing between a tape and the module
In one general embodiment, an apparatus includes a module having a tape bearing surface, and an array of transducers extending along the tape bearing surface. The module has an aperture extending therethrough from the tape bearing surface to an opposing side of the module for permitting passage of air therethrough to the tape bearing surface. In another general embodiment, a method includes adhering a closure to a thin film layer formed on a substrate. The thin film layer has an array of transducers extending therealong. The closure has a channel therein which forms an aperture when the closure is coupled to the thin film layer. A tape bearing surface is formed along the substrate, closure and thin film layer. A recessed portion is formed in the tape bearing surface. An opening of the aperture is present in the recessed portion upon forming the recessed portion.
Write transducers having high moment layer
An apparatus, according to one embodiment, includes: an array of write transducers. Each of the write transducer include: a first write pole having a pole tip extending from a media facing side of the first write pole, and a second write pole having a pole tip extending from a media facing side of the second write pole. Each of the write transducers also include a nonmagnetic write gap between the pole tips of the write poles, a first high moment layer between the write gap and the pole tip of the second write pole, and a second high moment layer between the write gap and the pole tip of the first write pole. The first and second high moment layers each have a higher magnetic moment than magnetic moments of the pole tips of the second and first write poles, respectively.
Apparatus having recessed TMR read sensor structures for robust head-tape interface
An apparatus according to one embodiment includes a module having a tape bearing surface and a plurality of tunnel valve read transducers arranged in an array extending along the tape bearing surface of the module. Each of the tunnel valve read transducers includes a sensor structure having a free layer, a tunnel barrier layer, and a reference layer. At least some of the sensor structures are recessed from a plane extending along the tape bearing surface. An at least partially polycrystalline coating is positioned on a media facing side of the recessed sensor structures.