G11B5/3106

HEATSINK STRUCTURES FOR HEAT-ASSISTED MAGNETIC RECORDING HEADS

A recording head comprises a write pole extending to an air-bearing surface. A near-field transducer is positioned proximate a first side of the write pole in a down-track direction. A heatsink structure is proximate the near-field transducer and positioned between the near-field transducer and the write pole. The heatsink structure extends beyond the near-field transducer in a cross-track direction and extends in a direction normal to the air-bearing surface.

Tape head module having recessed portion to provide an air bearing between a tape medium and a tape bearing surface of the module

Provided are a tape head module, tape drive, and method for moving a tape medium over a tape head having a recessed portion to provide air bearing between a tape medium and a tape bearing surface of the module. The tape head includes a tape bearing surface, an array of transducers, including read and/or write transducers, on the tape bearing surface, and a recessed portion formed on the tape bearing surface, wherein the array of transducers is located on the tape bearing surface between the recessed portion and an end of the module to perform read and/or write operations with respect to the tape medium.

Differential recessed topography of a media-facing surface

An apparatus comprising a slider is configured for heat-assisted magnetic recording. The slider comprises a media-facing surface. One or more reader elements are positioned in a reader region of the slider, and the one or more reader elements have an average first elevation at the media-facing surface. One or more writer elements are positioned in a writer region of the slider, and the one or more writer elements have an average second elevation at the media-facing surface. The average second elevation is less than the average first elevation.

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.

MICROWAVE-ASSISTED MAGNETIC RECORDING (MAMR) HEAD SLIDER, HEAD GIMBAL ASSEMBLY, AND DISK DRIVE UNIT
20240013804 · 2024-01-11 ·

The present disclosure discloses a device with a protective layer, including a substrate, a seed layer formed on the substrate, and a diamond-like carbon layer formed on the seed layer, where the seed layer is a silicon nitride layer, and a content of nitrogen in the silicon nitride layer is 9%-17%. The present disclosure further discloses a microwave-assisted magnetic recording (MAMR) head slider, a head gimbal assembly, and a disk drive unit. The device has good thermal stability, oxidation resistance and corrosion resistance, thereby improving reliability and prolonging service life of an MAMR head.

Magnetic recording disk drive with a contact pad for protection of the write head and process for making the pad

A magnetic recording disk drive head carrier or slider has a contact pad that protects the disk drive's write pole during touchdown of the slider with the disk. The contact pad is located in a window region of the slider's disk-facing surface that includes the write pole end. The contact pad includes a layer of silicon that surrounds the write pole end but does not cover it. The silicon does not cover the write pole end because it has diffused into the ferromagnetic material of the write pole end. This removes the silicon over the write pole end. The contact pad includes a protective overcoat on the silicon-containing write pole end and surrounding silicon layer. The protective overcoat thus has a recess over the write pole due to the absence of silicon, so that the protective overcoat surrounding the recess provides protection to the recessed write pole end during touchdown.

Slider having angled or curvilinear sidewalls

The present disclosure includes methods of forming air bearing surfaces having multi-tier structures using nanoimprint technology and/or 3D printing technology. In some embodiments, a single stage of milling can be used to transfer a multi-tier photoresist pattern into a substrate (e.g., an AlTiC substrate).

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.

MATERIALS FOR NEAR FIELD TRANSDUCERS AND NEAR FIELD TRANSDUCERS CONTAINING SAME

A device including a near field transducer, the near field transducer including gold (Au) and at least one other secondary atom, the at least one other secondary atom selected from: boron (B), bismuth (Bi), indium (In), sulfur (S), silicon (Si), tin (Sn), hafnium (Hf), niobium (Nb), manganese (Mn), antimony (Sb), tellurium (Te), carbon (C), nitrogen (N), and oxygen (O), and combinations thereof; erbium (Er), holmium (Ho), lutetium (Lu), praseodymium (Pr), scandium (Sc), uranium (U), zinc (Zn), and combinations thereof; and barium (Ba), chlorine (Cl), cesium (Cs), dysprosium (Dy), europium (Eu), fluorine (F), gadolinium (Gd), germanium (Ge), hydrogen (H), iodine (I), osmium (Os), phosphorus (P), rubidium (Rb), rhenium (Re), selenium (Se), samarium (Sm), terbium (Tb), thallium (Th), and combinations thereof.

Devices including a diffusion barrier layer

Devices that include a write pole; a near field transducer (NFT) that includes a peg and a disk, wherein the peg is at the ABS of the device; and a diffusion barrier layer positioned between the write pole and the peg of the NFT, the diffusion barrier layer including metals, nitrides, oxides, carbides, silicides, or amorphous material.