252results about "Housing manufacture" patented technology

A method and system for providing an energy assisted magnetic recording (EAMR) head are described. The method and system include providing a slider, an EAMR transducer coupled with the slider, and a top layer on the slider. The top layer includes a mirror well therein and has a substantially flat top surface. The method and system further includes providing a laser including a light-emitting surface and providing a mirror optically coupled with the laser. The laser is coupled to the top surface of the top layer external to the mirror well. The mirror has a bottom surface and a reflective surface facing the light-emitting surface of the laser. A portion of the bottom surface of the mirror is affixed to the top surface of the top layer. A portion of the mirror resides in the mirror well.

According to one embodiment, a magnetic head having a head slider which holds a magnetic head unit including a heat-generating element for controlling the flying-height and a high-frequency oscillator for performing high-frequency assisted writing, and on which terminals connected to the magnetic head elements are used in the smallest number required. Terminals are mounted on the head slider and are connected to the magnetic head unit. The terminals include at least one current-supplying terminal that is connected to the heat-generating element serving to control the flying height and to the high-frequency oscillator.

According to one aspect, an exemplary method of manufacturing a magnetic head assembly with a predetermined wrap angle is described. The method includes removing a portion of a magnetic head support surface to create a slot transverse to a direction the media advances and at least partially separating a major support surface having an active device region and a thin support surface. The method further includes removing a portion of the thin support surface such that the height of at least a portion of the thin support surface is reduced relative to the major support surface. The height may be reduced to achieve a predetermined wrap angle between the media and the major support surface of the head assembly.

A method in one embodiment includes exposing a side of a dielectric layer to a beam of charged particles for converting an amorphous component of at least a portion of a dielectric layer to a crystalline state, wherein the side of the dielectric layer of extends between adjacent layers. Another method includes forming a dielectric overcoat on a media facing side of a plurality of thin films, the thin films having at least one transducer formed therein; and exposing at least a portion of the overcoat to a beam of charged particles for converting an amorphous component of the dielectric overcoat of the thin films to a crystalline state. Another method includes forming a thin film dielectric layer above a substrate; and exposing the dielectric layer to a beam of charged particles for converting an amorphous component of at least a portion of the dielectric layer to a crystalline state.

A light-coupling structure in a type of heat-assisted magnetic recording is provided, the structure not needing a separate additional slider or a suspension arm through reduction in variation amounts of coupling due to vibrations, and being realized as a high efficient, low-cost structure with compact size. The light-coupling structure in a type of heat-assisted magnetic recording (HAMR) includes: a waveguide having, at its one end, a mirror part inclined at a certain angle; a slider having one of a groove provided along a width direction of one side thereof contacting the waveguide and a via hole provided along a width direction of one side thereof contacting the waveguide; and a fiber butt-connected to the waveguide by means of a connector provided parallel with the slider.

A method for cutting a ceramic wafer to form individual sliders for use in supporting the read/write heads in magnetic recording disk drives uses multiple parallel scans of a pulsed laser to ablate the ceramic material. After the wafer has been cut into individual rows, a pulsed laser beam is directed to that surface of the row that will become the disk sides of the sliders (i.e., the sides of the sliders that will face the disks in the disk drive). The laser is pulsed as the laser spot is moved along a first scan line across the surface of the wafer row to form a generally V-shaped trench. The laser spot is then moved in a direction generally perpendicular to the first scan line a distance less than the laser beam diameter, and then pulsed while the laser spot is scanned along a second line generally parallel to the first scan line. This slight offset of the laser beam during the second scan blends the edges of the wafer surface at the trench to remove protrusions formed at those edges by the first laser scan. The laser is then moved to the other side of the first scan line a distance less than the laser beam diameter and a third scan is made to blend the other edge. One of more subsequent laser scans can be made along the first scan line to either cut deeper or to cut completely through the wafer row to completely separate the sliders.

A slider according to the present invention includes a slider body, a plurality of insulators, and conductive traces. The slider body has a first side and edges defined substantially perpendicular to the first side. The plurality of insulators are each adjacent to the first side of the slider body. The conductive traces are adjacent to each of the plurality of insulators and opposite the slider body.

A thin-film includes an inductive element and a first and second magneto-resistive effect elements in which the first and second magneto-resistive effect elements are arranged in proximity to each other on a substrate, and one surface of the substrate perpendicular to the surface formed with the first and second magneto-resistive effect elements constitutes a slider surface, thereby providing appropriate hight of the magneto-resistive effect elements.

Provided is a method for manufacturing a heat-assisted magnetic recording head, capable of joining a light source unit and a slider with a sufficiently high alignment accuracy. In the method, the unit including a light source is joined to the slider including a head part. First, at least one marker provided on the head-part end surface is set so that the distance from the waveguide incident center to the marker end is substantially equal to the distance from the light-emission center of the light source to the end surface of the light source. After that, the unit and slider are relatively moved while keeping the unit in surface contact with the slider, and the relative positions are set so that the end of the marker coincides with, or is at a distance within an acceptable range from, the edge of the surface of the light source.

The overcoat of a slider (alumina) is recessed relative to the slider ABS by a non-abrasive CMP process sufficiently to prevent thermal protrusion of the overcoat during subsequent slider use in a hard disk drive. The CMP process involves the oscillatory and rotational compressional contact between the ABS surface of the slider and a polymerically pre-treated compliant pad that is sprayed by an aqueous alkali lubricating solution having a pH between about 9 and 10. The overcoat is thereby also softened by the lubricating solution and removed by the compressional contact and no use of abrasives is required.

The present invention provides a thin-film magnetic head which surely improves the writing and reading characteristic with reducing the flying height and surely handles the contact or collision with the magnetic recording medium.

A thin-film magnetic head is provided, which includes, an substrate with ABS; a read or write head element provided on an element-formed surface of the substrate; at least one protrusion adjustment portion whose end reaches a slider end surface on the ABS side, which provides on an element-formed surface of the substrate; at least one heating portion provided rear at least one protrusion adjustment portion viewed from the slider end surface on the ABS side.

A slider is formed by a three-step ion milling process with an ABS topography that provides aerodynamic stability at sub-nanometer flying heights. The ABS design significantly eliminates the accumulation of lubricant and removes whatever lubricant does accumulate by use of a shallow dam at the trailing edge. In addition, a junction between a down-track channel and a cross-track channel directs airflow towards a center pad in which a transducer is embedded so that the pressure at the pad is enhanced even under high altitude conditions. The slider ABS is divided into two portions by a transverse deep air channel, but the channel is bridged by the cross-track channel which crosses the deep air channel with sides of unequal height. This dual height bridge allows variations in skew angle to be compensated so that pressure variations across the disk tracks are significantly reduced.

A magnetoresistive thin-film magnetic head with high corrosion resistance for recording medium having massive capacity is provided by providing a protective film having a thickness of 40 Å or less. Since the distance between the head and the medium is remarkably reduced, the film is suitable for a recording medium having high-packing density. The magnetoresistive type thin-film magnetic head is provided, wherein the following layers are formed on at least the surface of the head facing a recording medium: (A) a lower layer composed of a thin film having the composition represented by the formula selected from the group consisting of: formula (i): SiCXHYOZNWFTBUPV (where X=0.5-26, Y=0.5-13, Z=0-6, W=0-6, T=0-6, U=0-1 and V=0-1, in terms of atomic ratio), and formula (ii): SiHYOZNWFTBUPV (where Y=0.0001-0.7, Z=0-6, W=0-6, T=0-6, U=0-1 and V=0-1); and (B) an upper layer composed of a diamond-like thin film having the composition represented by the following formula: CHaObNcFdBePf (where a=0-0.7, b=0-1, c=0-1, d=0-1, e=0-1 and f=0-1), and the total thickness of the lower layer and the upper layer is 40 Å or less. Also provided are a method for producing the same, and a magnetic head device using the same.

A multi-channel thin-film magnetic head includes a substrate, a plurality of thin-film magnetic head elements formed on the substrate, a closure fixed onto the plurality of thin-film magnetic head elements, a protection film laminated on a whole area of a TBS of the plurality of thin-film magnetic head elements and the closure, and many micro-grooves formed in a surface of the protection film.

A slider having a magnetic read/write head and including, a base coat, a reader element having a transducer, a writer element, the writer element including at least one conductive coil, the coil being electrically insulated by a composition which has a negative coefficient of thermal expansion, and an overcoat.

A slider having bonding pads opposite an air bearing surface and a method for producing the same is disclosed. Bonding pads are formed on the side of a slider assembly opposite the air bearing surface (ABS) to allow electrical probing devices on the slider while applying pressure to the slider during the lapping process and to allow a flip chip bonding process of the slider to the suspension thereby reducing or eliminating the need to bend wires and attach to the end of the slider body.

A manufacturing process for reducing magnetic spacing loss in a magnetic recording head. The recession of the transducer relative to the substrate at the air bearing surface is decreased by applying a coating of sacrificial material such as diamond-like carbon to the upper surfaces of the substrate, the transducer, and the encapsulation material such as alumina prior to final kiss lapping. The recession due to the alumina being softer than the substrate is greatly reduced since the DLC is kiss-lapped.