摘要:
Cathode structures are disclosed for use with pulsed cathodic arc deposition systems for forming diamond-like carbon (DLC) films on devices, such as on the sliders of hard disk drives. In illustrative examples, a base layer composed of an electrically- and thermally-conducting material is provided between the ceramic substrate of the cathode and a graphitic paint outer coating, where the base layer is a silver-filled coating that adheres to the ceramic rod and the graphitic paint. The base layer is provided, in some examples, to achieve and maintain a relatively low resistance (and hence a relatively high conductivity) within the cathode structure during pulsed arc deposition to avoid issues that can result from a loss of conductivity within the graphitic paint over time as deposition proceeds. Examples of suitable base material compounds are described herein where, e.g., the base layer can withstand temperatures of 1700° F. (927° C.).
摘要:
Methods of forming a layer of magnetic material on a substrate, the method including: configuring a substrate in a chamber; controlling the temperature of the substrate at a substrate temperature, the substrate temperature being at or below about 250° C.; and introducing one or more precursors into the chamber, the one or more precursors including: cobalt (Co), nickel (Ni), iron (Fe), or combinations thereof, wherein the precursors chemically decompose at the substrate temperature, and wherein a layer of magnetic material is formed on the substrate, the magnetic material including at least a portion of the one or more precursors, and the magnetic material having a magnetic flux density of at least about 1 Tesla (T).
摘要:
Devices that include a near field transducer (NFT), the NFT having a disc and a peg, and the peg having five surfaces thereof; and at least one adhesion layer positioned on at least one of the five surfaces of the peg, the adhesion layer including one or more of the following: yttrium (Y), tin (Sn), iron (Fe), copper (Cu), carbon (C), holmium (Ho), gallium (Ga), silver (Ag), ytterbium (Yb), chromium (Cr), tantalum (Ta), iridium (Ir), zirconium (Zr), yttrium (Y), scandium (Sc), cobalt (Co), silicon (Si), nickel (Ni), molybdenum (Mo), niobium (Nb), palladium (Pd), titanium (Ti), rhenium (Re), osmium (Os), platinum (Pt), aluminum (Al), ruthenium (Ru), rhodium (Rh), vanadium (V), germanium (Ge), tin (Sn), magnesium (Mg), iron (Fe), copper (Cu), tungsten (W), hafnium (Hf), carbon (C), boron (B), holmium (Ho), antimony (Sb), gallium (Ga), manganese (Mn), silver (Ag), indium (In), bismuth (Bi), zinc (Zn), ytterbium (Yb), and combinations thereof.
摘要:
A treatment apparatus includes two can rolls provided on a transfer path through which a long resin film is transferred in a roll-to-roll manner in a vacuum chamber; and surface treatment means facing an outer circumference of each of the can rolls to treat a surface of the long resin film cooled by being wound around the outer circumference. The downstream can roll is provided with upper and lower two sets of feeding and sending systems, and one surface of the long resin film in contact with the outer circumference of the downstream can roll at a time when the long resin film travels through the lower one of the two sets of feeding and sending systems is opposite to the other surface of the resin film in contact with the outer circumference of the downstream can roll at a time when the resin film travels through the upper one.
摘要:
A method and apparatus for forming magnetic media substrates is provided. A patterned resist layer is formed on a substrate having a magnetically susceptible layer. A conformal protective layer is formed over the patterned resist layer to prevent degradation of the pattern during subsequent processing. The substrate is subjected to an energy treatment wherein energetic species penetrate portions of the patterned resist and conformal protective layer according to the pattern formed in the patterned resist, impacting the magnetically susceptible layer and modifying a magnetic property thereof. The patterned resist and conformal protective layers are then removed, leaving a magnetic substrate having a pattern of magnetic properties with a topography that is substantially unchanged.
摘要:
A method of fabricating a magnetic recording medium sequentially forms a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body. The lubricant layer is formed by vapor-phase lubrication without exposing the stacked body to atmosphere after forming the protection layer on the stacked body. A region having a gas pressure P3 is provided in a transport path of the stacked body after the formation of the protection layer and before the formation of the lubricant layer, satisfying relationships P3>P1 and P3>P2, where P1 denotes a process gas pressure at a time of forming the protection layer, and P2 denotes a process gas pressure at a time of forming the lubricant layer.
摘要:
An apparatus for depositing a ta-C thin film for a magnetic recording medium includes a film deposition chamber; a plasma beam formation portion for supplying a plasma beam to the film deposition chamber to form the ta-C thin film on a substrate with a magnetic recording layer thereon; a substrate holder rotatably arranged in the film deposition chamber; a tilting member for continuously changing an inclination angle of the plasma beam to a surface of the magnetic recording layer; and a rotating member for rotating the substrate about a rotation axis of the substrate holder. A control member rotates the substrate holder with the substrate thereon and operates the tilting member to continuously change the inclination angle from a minimum inclination angle to a maximum inclination angle according to an increase in film thickness of the ta-C thin film being formed by the plasma beam formation portion.
摘要:
A magnetic recording medium, a manufacturing method thereof, and a magnetic recording/reproducing apparatus are provided, capable, with a configuration having a magnetic recording film only on one side, of suppressing warp occurrence, and obtaining a high quality and thin-type magnetic recording medium. When forming a recording layer having at least a magnetic recording film on one main surface of a substrate by means of a vapor-phase film forming method, a thin film is formed on the other main surface of the substrate using a vapor-phase film forming method. When the recording layer is formed as a multiple layer structure, the thin film is also formed as a multiple layer structure with the same number of laminations as for the recording layer 5, and layer pairs of the same lamination order as the recording layer and the thin film are preferably formed concurrently in the same chamber.
摘要:
A magnetic recording medium and a method of manufacturing a magnetic recording medium are provided, in which degradation of wear resistance against a magnetic head and performances of the medium is restrained, and metal dissolving out of the magnetic recording layer and degradation of corrosion resistance due to low coverage of a protective layer are suppressed. The method of manufacturing provides a magnetic recording medium having a convex portion of a magnetic recording layer for recording information and a concave portion without a recording function on a disk substrate. An ALD protective layer is formed on the magnetic recording medium using an ALD method. The magnetic recording medium has a convex portion of a magnetic recording layer for recording information and a concave portion without a recording function on a disk substrate, and has a protective layer formed by an ALD method on the concavo-convex pattern.
摘要:
A magnetic recording medium is disclosed that includes a substrate; an anodic alumina film formed on the substrate; a pore formed in the anodic alumina film; a carbon layer covering the surface of the anodic alumina film and the inner wall of the pore; a magnetic particle formed on the carbon layer inside the pore; and a lubrication layer covering the carbon layer and the magnetic particle.