Patents by Inventor Timothy Clark Reiley

Timothy Clark Reiley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8634168
    Abstract: A structure for preventing Electrostatic Discharge (ESD) damage to a magnetoresistive sensor during manufacture. The structure includes a switching element that can be switched off during testing of the sensor and then switched back on to provide ESD shunting to the sensor. The switch can be a thermally activated mechanical relay built onto the slider. The switch could also be a programmable resistor that includes a solid electrolyte sandwiched between first and second electrodes. One of the electrodes functions as an anode. When voltage is applied in a first direction an ion bridge forms across through the electrolyte across electrodes making the resistor conductive. When a voltage is applied in a second direction, the ion bridge recedes and the programmable resistor becomes essentially non-conductive.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: January 21, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Thomas Robert Albrecht, Robert E. Fontana, Jr., Bruce Alvin Gurney, Timothy Clark Reiley, Xiao Z. Wu
  • Publication number: 20120243125
    Abstract: A structure for preventing Electrostatic Discharge (ESD) damage to a magnetoresistive sensor during manufacture. The structure includes a switching element that can be switched off during testing of the sensor and then switched back on to provide ESD shunting to the sensor. The switch can be a thermally activated mechanical relay built onto the slider. The switch could also be a programmable resistor that includes a solid electrolyte sandwiched between first and second electrodes. One of the electrodes functions as an anode. When voltage is applied in a first direction an ion bridge forms across through the electrolyte across electrodes making the resistor conductive. When a voltage is applied in a second direction, the ion bridge recedes and the programmable resistor becomes essentially non-conductive.
    Type: Application
    Filed: March 28, 2012
    Publication date: September 27, 2012
    Applicant: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Thomas Robert Albrecht, Robert E. Fontana, JR., Bruce Alvin Gurney, Timothy Clark Reiley, Xiao Z. Wu
  • Patent number: 8169751
    Abstract: A structure for preventing Electrostatic Discharge (LSD) damage to a magnetoresistive sensor during manufacture. The structure includes a switching element that can be switched off during testing of the sensor and then switched back on to provide ESD shunting to the sensor. The switch can be a thermally activated mechanical relay built onto the slider. The switch could also be a programmable resistor that includes to solid electrolyte sandwiched between first and second electrodes. One of the electrodes functions as an anode. When voltage is applied in a first direction an ion bridge forms across through the electrolyte across electrodes making the resistor conductive. When a voltage is applied in a second direction, the ion bridge recedes and the programmable resistor becomes essentially non-conductive.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: May 1, 2012
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Thomas Robert Albrecht, Robert E. Fontana, Jr., Bruce Alvin Gurney, Timothy Clark Reiley, Xiao Z. Wu
  • Patent number: 7607214
    Abstract: 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 wafer, and the sliders are parsed into rows by a process that involves forming a mask having a trench or opening between the rows of sliders at the location of the desired cut and parallel to a vertical (111) plane of the wafer. The wafer is then exposed to KOH which removes wafer material in the vertical direction through the wafer without removing wafer material in the horizontal direction. The vertical removal of wafer material is due to the extreme preferential removal of the (110) surface Si over that of the (111) surface Si. This results in a narrow straight trench being formed. The KOH etch removal can form a trench or cut having a width of only 30 to 50 um through a 1 mm thick wafer.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: October 27, 2009
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Timothy Clark Reiley, Barry Cushing Stipe
  • Patent number: 7566483
    Abstract: Modified strain regions are created in correlation to strain reactive structures that are subjected to a predetermined dimensional precision adjustment. The modified strain regions are created by impacting incident particles into exposed regions of the strain reactive structures. The irradiation by the incident particles creates a predetermined material disruption and consequently a change in strain energy. The strain energy, and the associated dimensional adjustment is dependent on the irradiation process and the sum properties of the modified strain regions and the strain reactive structure.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: July 28, 2009
    Assignee: Hitachi Global Storage Technologies Netherlands, B.V.
    Inventors: John Edward Eric Baglin, Richard D. Bunch, Linden James Crawforth, Eric W. Flint, Andrew J. Kellock, Timothy Clark Reiley
  • Patent number: 7554055
    Abstract: An ohmic contact for a silicon slider body is disclosed. A scanned laser beam locally heats a metal film on the slider body to interdiffuse the metal and silicon while minimizing the total thermal load on the slider body. This localized heating avoids thermal damage to the sensitive magnetic head region on the slider. The native oxide layer on the slider is removed by a sputter etch, followed by deposition of a diffusion layer. A capping layer is then deposited to reduce oxidation during subsequent processing. The metal layer is then locally annealed by scanning the laser beam over the target area. Contact resistance of less than 100 ohms is achieved while minimizing the thermal load on the slider body.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: June 30, 2009
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Timothy Clark Reiley, Timothy Carl Strand
  • Patent number: 7396770
    Abstract: To smooth silicon sliders that have been parted from each other on a wafer by DRIE, an isotropic etch using fluorine either in a gas or in an aqueous solution is performed prior to separating the individual sliders from the wafer.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: July 8, 2008
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Timothy Clark Reiley, Nicholas Buchan
  • Publication number: 20080037182
    Abstract: A structure for preventing Electrostatic Discharge (ESD) damage to a magnetoresistive sensor during manufacture. The structure includes a switching element that can be switched off during testing of the sensor and then switched back on to provide ESD shunting to the sensor. The switch can be a thermally activated mechanical relay built onto the slider. The switch could also be a programmable resistor that includes a solid electrolyte sandwiched between first and second electrodes. One of the electrodes functions as an anode. When voltage is applied in a first direction an ion bridge forms across through the electrolyte across electrodes making the resistor conductive. When a voltage is applied in a second direction, the ion bridge recedes and the programmable resistor becomes essentially non-conductive.
    Type: Application
    Filed: June 27, 2006
    Publication date: February 14, 2008
    Inventors: Thomas Robert Albrecht, Robert E. Fontana, Bruce Alvin Gurney, Timothy Clark Reiley, Xiao Z. Wu
  • Patent number: 7191508
    Abstract: A method for manufacturing thin-film magnetic head sliders is disclosed. Initially, an elastic layer, which may be made of poly-dimethyl siloxane (PDMS), is spun on a wafer and is thermally cured. Then, a resist layer is spun on the elastic layer. Both the resist layer and the elastic layer are subsequently peeled off together from the wafer. Next, the peeled resist layer/elastic layer is applied onto a group of magnetic heads with the resist layer in direct contact with the magnetic heads. Finally, the elastic layer is peeled off from the resist layer such that the resist layer remains attaching to the magnetic heads.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: March 20, 2007
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Cherngye Hwang, Kim Y. Lee, Gary McClelland, Dennis Richard McKean, Timothy Clark Reiley
  • Publication number: 20040224092
    Abstract: Modified strain regions are created in correlation to strain reactive structures that are subjected to a predetermined dimensional precision adjustment. The modified strain regions are created by impacting incident particles into exposed regions of the strain reactive structures. The irradiation by the incident particles creates a predetermined material disruption and consequently a change in strain energy. The strain energy, and the associated dimensional adjustment is dependent on the irradiation process and the sum properties of the modified strain regions and the strain reactive structure.
    Type: Application
    Filed: June 4, 2004
    Publication date: November 11, 2004
    Inventors: John Edward Eric Baglin, Richard D. Bunch, Linden James Crawforth, Eric W. Flint, Andrew J. Kellock, Timothy Clark Reiley
  • Patent number: 6793557
    Abstract: An electrical lapping guide is disclosed which is suitable for use with a single slider having a magnetic recording head. The electrical lapping guide provides for monitoring the progression of lapping; does not require additional electrical connection pads; and, is removable after completion of lapping.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: September 21, 2004
    Assignee: International Business Machines Corporation
    Inventors: Richard D. Bunch, Timothy Clark Reiley
  • Patent number: 6747845
    Abstract: At least one modified strain region having a damage depth between 0.1 and 2 microns in a disk drive slider is created by implantation with ions, electrons or neutral atoms. The modified strain region induces a deformation of the disk drive slider. The nature and extent of this deformation is determined by the interaction between the slider and the modified strain region.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: June 8, 2004
    Assignee: International Business Machines Corporation
    Inventors: John Edward Eric Baglin, Richard D. Bunch, Linden James Crawforth, Eric W. Flint, Andrew J. Kellock, Timothy Clark Reiley
  • Patent number: 6699102
    Abstract: A lapping monitor for monitoring the lapping of a lapping surface of a body having at least one transducer which has a height that has to be lapped. The lapping monitor has a lap unit for lapping the lapping surface, at least one lapping indicator mounted close to the transducer to indicate the height of the transducer and a control block in the body at a certain distance from the lapping indicator or indicators. It is also possible to use a property of the transducers themselves, e.g., their resistance, to indicate their height. The control block receives indication of the height of the transducers being lapped from the lapping indicators or from the transducers via an electrical connection. The control block is further equipped with test contacts for establishing an external connection.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: March 2, 2004
    Assignee: International Business Machines Corporation
    Inventors: Timothy Clark Reiley, Thomas Robert Albrecht
  • Publication number: 20030220050
    Abstract: An electrical lapping guide is disclosed which is suitable for use with a single slider having a magnetic recording head. The electrical lapping guide provides for monitoring the progression of lapping; does not require additional electrical connection pads; and, is removable after completion of lapping.
    Type: Application
    Filed: May 24, 2002
    Publication date: November 27, 2003
    Inventors: Richard D. Bunch, Timothy Clark Reiley
  • Publication number: 20020094758
    Abstract: A lapping monitor for monitoring the lapping of a lapping surface of a body having at least one transducer which has a height that has to be lapped. The lapping monitor has a lap unit for lapping the lapping surface, at least one lapping indicator mounted close to the transducer to indicate the height of the transducer and a control block in the body at a certain distance from the lapping indicator or indicators. It is also possible to use a property of the transducers themselves, e.g., their resistance, to indicate their height. The control block receives indication of the height of the transducers being lapped from the lapping indicators or from the transducers via an electrical connection. The control block is further equipped with test contacts for establishing an external connection.
    Type: Application
    Filed: January 12, 2001
    Publication date: July 18, 2002
    Inventors: Timothy Clark Reiley, Thomas Robert Albrecht
  • Patent number: 6344949
    Abstract: Flying height Adjustment for Air Bearing Sliders An air bearing slider for sliding over a medium surface of a recording medium and having an air bearing surface facing the disk surface, a back surface perpendicular to the air bearing surface and a head at the back surface. During operation the head is maintained at a flying height above the disk surface with the aid of a flying height adjustment mechanism consisting of one or more ducts, each having an inlet at the air bearing surface and an outlet at the back surface. A valve mechanism controls an air flow through the duct or ducts by opening and closing the valve or valves together or independently. Alternatively, a deformable surface feature located on the back surface of the slider is used to alter the air flow to thus control the flying height. The mechanism of the invention allows one to achieve accurate flying height control in a range between 5 and 50 nm and between 0 nm and 15 nm as required for near-field or contact disk drives.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: February 5, 2002
    Assignee: International Business Machines Corporation
    Inventors: Thomas Robert Albrecht, Robert Edward Fontana, Jr., Prakash Kasiraj, Erno Hilbrand Klaassen, Robert Nolan Payne, Timothy Clark Reiley
  • Patent number: 6262868
    Abstract: A rotary microactuator includes a stationary structure formed on a substrate, a movable structure, and at least a pair of wires connected to the movable structure that conduct a signal associated with the movable structure. Each wire of the pair of wires has a first end that is connected in a cantilever manner to the substrate and a second end that is connected to the movable structure. The wires each have a serpentine shape between the first end and the second end, a predetermined spring stiffness, and a predetermined electrical characteristic. The microactuator also includes a magnetic head slider that is attached to the movable structure, and at least another pair of wires conducting a signal associated with a magnetic head of the slider. Each of the another pair of wires has a first end that is connected in a cantilever manner to the substrate and a second end that is connected to the movable structure.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: July 17, 2001
    Assignee: International Business Machines Corporation
    Inventors: Satya Prakash Arya, Long-Sheng Fan, Toshiki Hirano, Tzong-Shii Pan, Wing Chun Shum, Timothy Clark Reiley
  • Patent number: 6239685
    Abstract: A bistable micromechanical switch that includes a substrate, at least two anchor points formed on the substrate, and a beam structure that includes a two-material beam attached to at least two anchor points. The two-material beam has a first portion, a second portion and a center portion. The first portion of the two-material beam is formed from a first layer of a first material and a second layer of a second material such that the first layer of the first portion is proximate to the surface of the substrate and the second layer of the first portion is remote from the surface of the substrate. The first material has a first coefficient of thermal expansion and the second material has a second coefficient of thermal expansion such that the second coefficient of thermal expansion is greater than the first coefficient of thermal expansion.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: May 29, 2001
    Assignee: International Business Machines Corporation
    Inventors: Thomas Robert Albrecht, Timothy Clark Reiley
  • Patent number: 6005742
    Abstract: A method and apparatus for controlling a multiple-stage actuator for a disk drive which does not require an additional sensor for measuring the relative position between adjacent actuator stages. In a two-stage actuator system, a position-type secondary actuator (SA) rides piggyback on a primary actuator (PA). The repeatable runout is measured and used as a feedforward signal to the PA. If the PA is a rotary actuator, the feedforward signal is preferably arc corrected for the arc that the head transverses from the inner radius to the outer radius of the disk. Added to the feedforward signal is the moving average of the drive signal applied to the SA. Because the SA is of the position-type having a neutral position, this moving average is proportional to the time cumulative drift present in the two-stage actuator system, and forces the PA in a direction that minimizes deviation of the SA from its neutral position.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: December 21, 1999
    Assignee: International Business Machines Corporation
    Inventors: Earl Albert Cunningham, Long-Sheng Fan, Hal Hjalmar Ottesen, Timothy Clark Reiley
  • Patent number: 5920441
    Abstract: A method and apparatus for controlling a multiple-stage actuator for a disk drive which does not require an additional sensor for measuring the relative position between adjacent actuator stages. In a two-stage actuator system, a position-type secondary actuator (SA) rides piggyback on a primary actuator (PA). The repeatable runout is measured and used as a feedforward signal to the PA. If the PA is a rotary actuator, the feedforward signal is preferably arc corrected for the arc that the head transverses from the inner radius to the outer radius of the disk. Added to the feedforward signal is the moving average of the drive signal applied to the SA. Because the SA is of the position-type having a neutral position, this moving average is proportional to the time cumulative drift present in the two-stage actuator system, and forces the PA in a direction that minimizes deviation of the SA from its neutral position.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: July 6, 1999
    Assignee: International Business Machines Corporation
    Inventors: Earl Albert Cunningham, Long-Sheng Fan, Hal Hjalmar Ottesen, Timothy Clark Reiley