Patent application number | Description | Published |
20110286127 | NEAR FIELD TRANSDUCER WITH SHAPED ENERGY RADIATING END - A magnetic recording head consists of a write pole and a near field transducer close to the write pole that focuses light energy to a focal point. A near field transducer is positioned to receive light energy from a waveguide. The near field transducer comprises an energy-receiving end and an energy-radiating end. The energy-receiving end is located near the focal point of the waveguide and the energy-radiating end is shaped such that it is narrower closer to the write pole and wider farther from the write pole. | 11-24-2011 |
20120044967 | Capping Method For Laser Diode Protection - A method includes: positioning a laser in the cavity in an end of a slider, wherein the laser has an output facet positioned adjacent to a first wall of the cavity to define a first gap between the output facet and the first wall of the cavity, and filling at least a portion of the first gap adjacent to the output facet. An apparatus including a slider including a cavity in a trailing end of the slider, a laser positioned in the cavity and having an output facet positioned adjacent to a first wall of the cavity to define a first gap between the output facet and the first wall of the cavity, and a sealing material filling at least a portion of the first gap adjacent to the output facet is also provided. | 02-23-2012 |
20120099407 | METHOD AND APPARATUS FOR COUPLING A LASER DIODE TO A MAGNETIC WRITER - A write head includes a cavity configured to couple a laser diode to the write head. A bottom of the cavity includes a heat conductive element configured to contact the laser diode, a plurality of thermal studs disposed below the heat conductive element, and a substrate disposed below the thermal studs. The heat conductive element, thermal studs, and substrate are thermally coupled to draw heat from the laser diode. | 04-26-2012 |
20120201107 | Laser-In-Slider Light Delivery For Heat Assisted Magnetic Recording - An apparatus includes a light source for producing a beam of light, a coupler for coupling the light into a slider waveguide, a beam expander for expanding the beam of light from the waveguide to produce an expanded beam, a collimator for collimating the expanded beam, and a focusing device for concentrating the collimated beam to a focal point. A method of delivering light to a focal point is also described. | 08-09-2012 |
20130028060 | Laser Recess Head Gimbal Assembly - A slider may have a first surface on an air bearing surface (ABS) and a laser recess formed in a second surface of the slider, opposite the first surface. A laser can then be positioned in the laser recess with the laser extending from the slider to a top plane. A stud may be formed adjacent to and separated from the laser on the second surface of the slider with the stud extending from the second surface of the slider to the top plane. | 01-31-2013 |
20130064502 | Plasmonic Transducer Having Two Metal Elements with a Gap Disposed Therebetween - A plasmonic transducer includes at least two metal elements with a gap therebetween. The metal elements are elongated along a plasmon-enhanced, near-field radiation delivery axis. Cross sections of the metal elements in a plane normal to the delivery axis vary in shape along the delivery axis. A waveguide is disposed along an elongated side of the plasmonic transducer. The waveguide is optically coupled to the plasmonic transducer along the elongated side. | 03-14-2013 |
20130071062 | PLASMONIC TRANSDUCER WITH REDUCED CROSS SECTION AT MEDIA-READING SURFACE - A plasmonic transducer includes at least two metal elements with a gap therebetween. The metal elements are placed along a plasmon-enhanced, near-field radiation delivery axis. Cross sections of the metal elements in a plane normal to the delivery axis vary in shape along the delivery axis. The metal elements have a reduced cross section portion at a media-facing surface oriented normal to the delivery axis. A dielectric material surrounds the reduced cross section portion of the plasmonic transducer at the media-facing surface, and reduces deformation of the metal elements proximate the media-facing surface at elevated temperatures. | 03-21-2013 |
20130084441 | OPTICAL ARTICLES AND METHODS OF MAKING SAME - Disclosed herein is a method for fabricating an optical device that includes depositing an etch stop material to form an etch stop layer, wherein the etch stop material has a refractive index in the infrared wavelength range, n | 04-04-2013 |
20130170332 | NEAR FIELD TRANSDUCER WITH SHAPED ENERGY RADIATING END - A magnetic recording head consists of a write pole and a near field transducer close to the write pole that focuses light energy to a focal point. A near field transducer is positioned to receive light energy from a waveguide. The near field transducer comprises an energy-receiving end and an energy-radiating end. The energy-receiving end is located near the focal point of the waveguide and the energy-radiating end is shaped such that it is narrower closer to the write pole and wider farther from the write pole. | 07-04-2013 |
20140004384 | INTERLAYER FOR DEVICE INCLUDING NFT AND CLADDING LAYERS | 01-02-2014 |
20140036646 | NEAR-FIELD TRANSDUCER - An apparatus includes a waveguide core having an elongated edge parallel to a substrate plane of the apparatus. An output end of the waveguide core faces a media-facing surface of the apparatus. A plate-like portion of a plasmonic material has a major surface facing the elongated edge of the waveguide core, and the major surface has a narrowed output end facing the media-facing surface. An elongated ridge of the plasmonic material is disposed on at least part of the plate-like portion between an input end and the narrowed output end. | 02-06-2014 |
20140091130 | METHOD AND APPARATUS FOR COUPLING A LASER DIODE TO A MAGNETIC WRITER - A write head includes a cavity configured to couple a laser diode to the write head. A bottom of the cavity includes a heat conductive element configured to contact the laser diode, a plurality of thermal studs disposed below the heat conductive element, and a substrate disposed below the thermal studs. The heat conductive element, thermal studs, and substrate are thermally coupled to draw heat from the laser diode. | 04-03-2014 |
20140153861 | POLARIZATION ROTATOR - A polarization rotator comprises a first waveguide configured to be coupled to an input coupler at a first end and a second waveguide, wherein the first waveguide is offset from the second waveguide and a second end of the first waveguide is coupled to a second end of the second waveguide. | 06-05-2014 |
20140251948 | METHODS OF MAKING A NEAR FIELD TRANSDUCER WITH A FLARE PEG - The disclosed methods enable the production of plasmonic near-field transducers that are useful in heat-assisted magnetic recording. The plasmonic near-field transducers have an enlarged region and a peg region. The peg region includes a peg region in proximity to an air-bearing surface above a recording medium and also includes a flared region between and in contact with the enlarged region and the peg region. The flared region can act as a heat sink and can lower the thermal resistance of the peg portion of the near-field transducer, thus reducing its temperature. | 09-11-2014 |
20140254339 | ETCH STOP CONFIGURATION - A method of making a transducer head disclosed herein includes depositing a spacer layer on an NFT layer of the transducer head, forming an etch stop layer on a spacer layer of a transducer, depositing a cladding layer on the etch stop layer, and milling the cladding layer at a sloped angle such that the milling stops at the etch stop layer. | 09-11-2014 |
20140307534 | APPARATUSES AND METHODS FOR CONTROLLING NEAR-FIELD TRANSDUCER TO WRITE POLE SPACING - An apparatus is provided that includes a waveguide adjacent an air bearing surface, a near-field transducer comprising a peg having a side orthogonal to the air bearing surface and a write pole adjacent to the waveguide. The write pole includes a first portion extending towards the air bearing surface at a non-orthogonal angle with respect to the air bearing surface, and a second portion in contact with the first portion comprising a side that extends towards and orthogonally contacts the air bearing surface. The second portion or the write pole defines a gap between the side of the peg orthogonal to the air bearing surface and the side of the second portion of the write pole that extends towards and orthogonally contacts the air bearing surface. A method of making a magnetic recording head that includes the provided apparatus is also disclosed. | 10-16-2014 |
20140376345 | NEAR FIELD TRANSDUCER WITH ISOLATED PEG - A method fabricating a near field transducer for a heat assisted magnetic recording head including forming a peg region of a near field transducer along a first portion of a substrate of a heat assisted magnetic recording head, removing a first portion of the peg region, fabricating a barrier material along a surface of the peg region created by the removal of the first portion of the peg region; and forming an enlarged region adjacent the surface such that the barrier material is disposed at least between the surface of the peg region and the enlarged region. | 12-25-2014 |
20150071045 | APPARATUSES AND METHODS FOR CONTROLLING NEAR-FIELD TRANSDUCER TO WRITE POLE SPACING - An apparatus includes a waveguide and a near-field transducer adjacent the waveguide. The near-field transducer includes an enlarged region and a peg region extending from the enlarged region towards an air bearing surface. A write pole is adjacent the near-field transducer and include a first portion having an edge extending towards the air bearing surface at a non-orthogonal angle with respect to the air bearing surface. A second portion of the write pole extends orthogonally to the air bearing surface and is in contact with the first portion. The apparatus includes an insulator-filled gap at the air bearing surface between the second portion of the write pole and the peg region of the near-field transducer. The gap is bounded away from the air bearing surface by the enlarged region of the near-field transducer. | 03-12-2015 |
20150072593 | APPARATUS INCLUDING ELECTRICAL LAPPING GUIDE AND METHODS OF USING THE SAME - An electrical lapping guide has a body with a thickness along a wafer axis, the body comprising a layer of conductive material having a resistivity. The conductive material layer comprises a first contact region and a second contact region, the first and second contact regions configured to electrically connect the electrical lapping guide to electrical leads. A lapping edge comprises an air-bearing plane axis perpendicular to a lapping axis, and a back edge opposite the lapping edge, the back edge comprising a plurality of notches. | 03-12-2015 |
20150083601 | NEAR FIELD TRANSDUCERS INCLUDING ELECTRODEPOSITED PLASMONIC MATERIALS AND METHODS OF FORMING - Methods of forming near field transducers (NFTs) including electrodepositing a plasmonic material. | 03-26-2015 |