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| Number | Title | Issue Date |
| 8136224 | Method and system for providing a perpendicular magnetic recording head utilizing a mask having an undercut line A method and system for providing a PMR pole in a magnetic recording transducer including an intermediate layer are disclosed. The method and system include providing a mask including a line on the intermediate layer. The line has at least one side, a top, and a bot... | 03/20/2012 |
| 8136225 | Method and system for providing a perpendicular magnetic recording head A method and system for providing a PMR pole in a magnetic recording transducer including an intermediate layer are disclosed. The method and system include providing a mask including a line on the intermediate layer. The method further include providing a hard mask... | 03/20/2012 |
| 8087157 | Process to manufacture magnetic tunnel junction read head Using a beam of xenon ions together with a suitable mask, a MTJ stack is ion milled until a part of it, no more than about 0.1 microns thick, has been removed so that a pedestal, having sidewalls comprising a vertical section that includes all of the free layer, has... | 01/03/2012 |
| 8065787 | Method of manufacturing a thermally assisted magnetic head A thermally assisted magnetic head is formed by performing a head forming process, a mounting part forming process and a light source mounting process in that order. In the head forming process, a planned area is secured on a light source placing surface of a slider... | 11/29/2011 |
| 8065786 | Manufacturing method of heat-assisted magnetic head constituted of slider and light source unit Provided is a manufacturing method of heat-assisted magnetic recording head, in which a light source unit can be easily joined to a slider with sufficiently high accuracy, under avoiding the excessive mechanical stress. The manufacturing method comprises the steps o... | 11/29/2011 |
| 7911735 | Perpendicular magnetic recording head utilizing a nonmagnetic underlayer layer The method and system for providing a perpendicular magnetic recording (PMR) head are described. The PMR head includes a base layer, a nonmagnetic metal underlayer on the base layer, and a PMR pole on the nonmagnetic metal underlayer. The PMR pole has a top that is ... | 03/22/2011 |
| 7886423 | Slider with micro-texture and method for forming the same A method for forming micro-texture on ABS of a slider, includes steps of: positioning sliders arranged in arrays on a tray, each slider having a pole tip facing upward; loading the tray into a processing chamber, and evacuating the processing chamber to a preset pre... | 02/15/2011 |
| 7836579 | Method to protect a GMR head from electrostatic damage during the manufacturing process A simple method is provided for protecting slider mounted read/write transducers from electrostatic discharge damage during the manufacture of disk drives. The method involves placing a ball of conducting thermoplastic resin, such as a gold or silver epoxy, between ... | 11/23/2010 |
| 7810226 | Method of manufacturing a thin-film magnetic head having an element having a lower layer with a narrower width A manufacturing method of a thin-film element having a lower layer with a narrower width is provided, which comprises steps of: forming a first film and a second film on the first film; forming a second layer having a width WUP obtained by trimming the se... | 10/12/2010 |
| 7779534 | Thin film magnetic head, method of manufacturing the same, and magnetic recording head The present invention provides a thin film magnetic head capable of suppressing unintentional wiring to a neighboring track and preventing information recorded on a recording medium from being erased. A main magnetic pole layer is constructed so that height of a wid... | 08/24/2010 |
| 7770281 | Method for redefining the trailing shield throat height in a perpendicular magnetic recording write head A method of forming a perpendicular magnetic recording write head having a trailing shield (TS) with a precisely defined throat height (TH) on an air-bearing slider includes depositing an electrical lapping guide (ELG) layer on the substrate adjacent to and spaced f... | 08/10/2010 |
| 7765676 | Method for patterning a magnetoresistive sensor A method for constructing a magnetoresistive sensor using an etch mask that is resistant to the material removal process used to define the sensor width and stripe height. The method may include the use of a Ta etch mask formed under a photoresist mask, and the use ... | 08/03/2010 |
| 7735213 | Method for fabricating magnetic head slider Embodiments of the present invention provide a method of fabricating a magnetic head slider realizing high-recording density at high-yields by preventing formation of a short circuit on the air-bearing surface of a magnetic head slider and preventing formation of an... | 06/15/2010 |
| 7716813 | Method for fabricating magnetic write pole for a magnetic head using an E-beam resist mask A method is disclosed for independently controlling track width and bevel angle of a write pole tip of a magnetic recording head. The method includes establishing the track width in the pole tip layer material utilizing E-beam lithography. A portion of this pole tip... | 05/18/2010 |
| 7716812 | Method of manufacturing a magnetic head A main magnetic pole of a recording head is formed in an inverted trapezoidal shape by ion milling but, the long milling time poses a problem of variations in the inverted trapezoidal shape and the dimensional variations in track width. In one embodiment of the inve... | 05/18/2010 |
| 7712204 | Manufacturing method of a thin-film magnetic head A manufacturing method of a thin-film head includes the steps of, laminating and patterning a soft magnetic layer with iron alloy that contains silicon and aluminum through a base layer on a substrate; laminating an insulating layer on the patterned soft magnetic la... | 05/11/2010 |
| 7707707 | Method for providing a temporary deep shunt on wafer structures for electrostatic discharge protection during processing A method of temporarily protecting an electrically sensitive component from damage due to electrostatic discharge includes defining a shunt having first and second leads electrically connected in parallel with the component and separated by a gap. A portion of a shi... | 05/04/2010 |
| 7698806 | Process for fabricating a slider or head for a data storage device The application discloses processes for fabricating a slider or head for a data storage device. The processes disclosed provide a transducer portion that is separated from a slider body by a gap. In an illustrated embodiment, actuator elements are fabricated in the ... | 04/20/2010 |
| 7681303 | Method for manufacturing a magnetic head slider Embodiments of the present invention provide a method of manufacturing a magnetic head slider, the method being adapted so that throat height of a main magnetic pole piece of a perpendicular recording magnetic head can be controlled with high accuracy. According to ... | 03/23/2010 |
| 7676904 | Method of manufacturing high sensitivity spin valve designs with ion beam treatment A method of manufacturing a GMR, TMR or CPP GMR sensor having a smooth interface between magnetic and non-magnetic layers to improve sensor performance by exposing a layer to a low energy ion beam prior to depositing a subsequent layer. ... | 03/16/2010 |
| 7640650 | Method of making a magnetoresistive reader structure A method of making a magnetoresistive sensor includes defining a track width of a magnetoresistive element stack of the sensor. Further, processes of the method enable depositing of hard magnetic bias material on each side of the stack. These processes may permit bo... | 01/05/2010 |
| 7634850 | Method of manufacturing magnetic head slider Embodiments of the present invention allow control over the element height of read and write heads without damage to a lapping surface table when an air-bearing surface is lapped with a row bar or magnetic head slider tilted. According to one embodiment, the air-bea... | 12/22/2009 |
| 7631416 | Method of making thin film magnetic head using electric lapping guide A reticle having a convex portion and a concave portion is used to form a convex portion and concave portion in the resist pattern for magnetic detection element and conductive layer, respectively. Then, with each resist pattern as a mask, unnecessary portions are r... | 12/15/2009 |
| 7624496 | Method for efficient slider burnishing during drive build A method for creating a disk drive. A slider is installed in a disk drive having at least one unlubricated disk. The slider is designed to be in initial contact. The slider is burnished to the final design point. A vapor phase lubricant reservoir system is installed... | 12/01/2009 |
| 7617589 | Method of manufacturing slider of thin-film magnetic head A method of manufacturing a slider includes forming a slider material containing a portion to be the slider body and a head element. The slider material is processed to form an air bearing surface by lapping a surface to be a medium facing surface of the slider mate... | 11/17/2009 |
| 7617588 | Method for making a device Methods for making devices comprise forming a plurality of transducers on a major surface of a wafer, including forming a plurality of solid layers each having a thickness that is less than one micron; dividing the wafer and the attached transducers into a plurality... | 11/17/2009 |
| 7614137 | Method of manufacturing a magnetic slider head Embodiments of the invention relate to manufacturing method of a magnetic head slider which flies stably even with a reduced peripheral speed resulting from a trend toward a magnetic disk having a smaller diameter. According to one embodiment, a method of manufactur... | 11/10/2009 |
| 7607214 | Method of manufacturing a silicon slider by an alkaline etch A slider for use in a magnetic data recording system that is constructed from a Si wafer by a method that saves valuable wafer real estate by minimizing kerf related to the cutting of the wafer into slider rows. The sliders are produced from a (110) oriented Si wafe... | 10/27/2009 |
| 7607215 | Method of manufacturing magnetic head slider To provide a method of manufacturing magnetic head slider which is capable of improving the product quality, simplifying the manufacturing process, and reducing the manufacturing time. This method of manufacturing a magnetic head slider, formed by cutting out from a... | 10/27/2009 |
| 7603762 | Optical lapping guide for use in the manufacture of perpendicular magnetic write heads An optical lapping guide for determining an amount of lapping performed on a row of sliders in a process for manufacturing sliders for magnetic data recording. The optical lapping guide is constructed with a front edge that is at an angle with respect to an air bear... | 10/20/2009 |
| 7591064 | Method of fabrication for tape medium read head with unitary formation of multiple elements A method is presented for fabrication of a tape medium read head having a unitary formation of multiple elements for reading multi-track data from a magnetic tape. The method includes providing a continuous substrate layer, and forming a sensor material layer on the... | 09/22/2009 |
| 7587809 | Method for forming a MR reader with reduced shield topography and low parasitic resistance A magnetoresistive reader having a sensor, current contacts with low parasitic resistance and a top shield with substantially planar topology is fabricated by first defining a stripe height back edge of the sensor. Next, a reader width of the sensor is defined. The ... | 09/15/2009 |
| 7562435 | Method to improve crown sigma control of the slider in a hard disk drive The sensitivity of the ABS shape of a suspension mounted slider to temperature variations can be greatly reduced if the backside of the slider is lapped to a smooth convex contour that is similar to the ABS shape, rather than to a planar shape, prior to mounting the... | 07/21/2009 |
| 7549213 | Method for independent trackwidth and wall angle control and hexagonal write head A method for independently controlling track width and bevel angle of a write pole tip having a P3 pole tip for perpendicular recording. The method includes establishing the track width in a portion of the P3 layer material. A portion of this portion h... | 06/23/2009 |
| 7549214 | Method for bonding slider row bars for photolithography process Certain example embodiments relate to a method for bonding slider row bars for a photolithography process. A holding device having a sticky surface is formed. A plurality of slider row bars is provided, with each having a first surface for forming an air bearing sur... | 06/23/2009 |
| 7540077 | Method for bonding slider row bars for photolithography process A method for bonding slider row bars for photolithography process, includes steps of: providing a first carrier plate having a sticky surface; providing slider row bars each having a first surface for forming ABS and an opposite second surface, and securing each sli... | 06/02/2009 |
| 7536773 | Method of configuring a sensor for a hard disk drive A nano-sized CPP aperture is precisely positioned to within a few nanometers of a slider ABS surface to maximize a signal from the disk and to prevent lapping damage to the aperture itself. A linear array of apertures is aligned perpendicular to the ABS plane. The h... | 05/26/2009 |
| 7526856 | Method for fabricating a magnetic head using a ferrofluid mask A method for fabricating sliders (magnetic heads) with a recessed surface around a magnetic feature such as the active components of the write head on the air-bearing surface (ABS) is described. An embodiment of the method applies a positive photoresist to the expos... | 05/05/2009 |
| 7506428 | Ion mill process with sacrificial mask layer to fabricate pole tip for perpendicular recording A method of fabrication of the write head of a perpendicular recording head allows for production of P3 pole tips of width less than 200 nm (200×10−9 meters). The method includes fabricating the P2 flux shaping layer, depositing the P3... | 03/24/2009 |
| 7480983 | Method for making magnetic write head Two trim/notch milling steps are used to refine the track width that is defined by the second pole piece tip of a write head. The second milling step uses feedback gained after the first milling step to refine the P2B (pole P2 bottom width) dimension. ... | 01/27/2009 |
