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| Number | Title | Issue Date |
| 8189297 | Disk drive flexure having a metal base with a band-like portion overlapping a gap between conductors for data writing A flexure comprises a metal base, an insulating layer, and first and second conductors. First and second openings are formed so as to extend longitudinally relative to the metal base. These openings are formed at predetermined intervals longitudinally relative to th... | 05/29/2012 |
| 7986495 | Printed circuit board having a layered signal line pair, a suspension board A first insulating layer is formed on a suspension body, and a write wiring trace and a read wiring trace are formed on the first insulating layer. A second insulating layer is formed on the first insulating layer so as to cover the wiring traces. A write wiring tra... | 07/26/2011 |
| 7609482 | Magnetic head slider supporting device including conductor for reducing crosstalk between lines A magnetic head slider supporting apparatus comprises: a suspension flexibly supporting a slider; and a flexible wiring board. The suspension incorporates a load beam. The flexible wiring board is disposed along the load beam. The flexible wiring board includes: fir... | 10/27/2009 |
| 7606003 | Electrical device for interconnecting magnetic head and driving circuit which uses adjusted length wires of opposite polarity to reduce crosstalk and storage apparatus including same A storage apparatus and a magnetic head driving device includes a recording/reproducing head including a write element and a magnetoresistive element, a driving circuit for driving the write element and the magnetoresistive element, and write wires and read wires wh... | 10/20/2009 |
| 7433157 | Method and apparatus for reducing solder pad size in an electrical lead suspension (ELS) to decrease signal path capacitive discontinuities An apparatus and method for reducing solder pad size in an electrical lead suspension (ELS) to decrease signal path capacitive discontinuities. The method provides a base-metal layer for the ELS. A dielectric layer above the base-metal layer is also provided. A sign... | 10/07/2008 |
| 7375913 | Suspension having magnetic head assembly mounted thereon and magnetic recording disk drive using the suspension A suspension having a magnetic head assembly 1 mounted thereon is provided, wherein the magnetic head assembly comprises: a write head 1-2; a read head 1-1; and a resistive heating element 1-3 for controlling the flyi... | 05/20/2008 |
| 7359149 | Composite type thin-film magnetic head with reduced capacitance between leads for read and write head elements A composite type thin-film magnetic head is provided, which comprises: a write head element; a pair of terminal pads for the write head element; a pair of lead conductors for the write head element, electrically connecting the write head element to the pair of termi... | 04/15/2008 |
| 7353525 | Reliable disk drive and method A durable, reliable high performance drive and method for digitizing, storing and retrieving data from a disk. In a first embodiment, at least one disk and components for spinning the disk, and digitizing, writing and reading data from the disk are covered with a 0.... | 04/01/2008 |
| 7352535 | Method and apparatus for reducing crosstalk and signal loss in flexing interconnects of an electrical lead suspension A method and apparatus for reducing crosstalk and signal loss in an electrical interconnect is disclosed. The electrical interconnect includes a laminate. A plurality of signal traces and a subsequent plurality of traces are in a first formed layer of the laminate. ... | 04/01/2008 |
| 7349184 | System and apparatus for continuous reference plane for wireless suspension A reference plane is added to the freestanding conductors of a wireless suspension to maintain a continuous reference plane therein. Post processing steps to the flexure are used after the underlying steel has been etched and prior to any forming or welding steps. T... | 03/25/2008 |
| 7342750 | Method for providing electrical crossover in a laminated structure An externally wireless laminated suspension for a hard disk drive are disclosed. In one embodiment, the externally wireless laminated suspension has an insulating layer to electrically isolate a first and second electrical trace from a conductive support layer. The ... | 03/11/2008 |
| 7319573 | Magnetic disk drive having a suspension mounted transmission line including read and write conductors and a lower conductor Embodiments of the invention provide a magnetic disk drive which has improved electrical properties owing to a reduction in the loss of transmission line, improved vibration properties owing to a reduction in the stiffness of wiring around the head, and a flat imped... | 01/15/2008 |
| 7293348 | Method of forming a suspension for use in a disk drive having a media disk A suspension for use in a disk drive is disclosed. The suspension has a hinge and load beam which are separately formed and subsequently joined together. The load beam is formed from a material which has improved damping characteristics. The load beam additionally h... | 11/13/2007 |
| 7271985 | System and method for crosstalk reduction in a flexible trace interconnect array A system for reducing signal crosstalk in a flexible trace interconnect array includes a flexible dielectric material base, and a plurality of conductors longitudinally arranged as pairs in a signal layer array on the base. At least one of the pairs of conductors co... | 09/18/2007 |
| 7225513 | Method for preventing operational and manufacturing imperfections in piezoelectric micro-actuators A method of manufacturing an actuator includes applying at least one layer of electrically-conductive material and at least one layer of electrically-insulative material to an actuator block, and separating the actuator block into a plurality of actuators, each actu... | 06/05/2007 |
| 7206154 | Method and apparatus for balanced shield shunts, leads and pads for electrical noise reduction in read heads A symmetrical read element circuit for reducing electrical and magnetic noise using signal processing, such as a differential preamplifier. The circuits are symmetrically created on both sides of the read element so that the noise is balanced on both leads of the se... | 04/17/2007 |
| 7203036 | Planar extraordinary magnetoresistance sensor An extraordinary magnetoresistance (EMR) sensor has a planar shunt and planar leads formed on top of the sensor and extending downward into the semiconductor active region, resulting. Electrically conductive material, such as Au or AuGe, is first deposited into lith... | 04/10/2007 |
| 7161767 | Wireless suspension design with ground plane structure Methods and devices are described that provide improved electromagnetic interference (EMI) protection for suspension assemblies. In one embodiment, a ground line is provided among the traces that are used in the suspension. Alternatively, a top ground plane is provi... | 01/09/2007 |
| 7142395 | Method for making noble metal conductive leads for suspension assemblies A method of manufacturing an integrated lead head suspension flexure of the type having conductors on a spring metal layer capable of being etched by a first etching process. The method includes forming a patterned layer having gaps one or more flying lead regions o... | 11/28/2006 |
| 7116523 | Interconnect module for use in a suspension assembly A lead routing module for interconnecting two devices in a suspension assembly. The suspension assembly including at least a suspension, a slider/head assembly, and a lead routing module. The suspension assembly may also include a microactuator. The lead routing mod... | 10/03/2006 |
| 7092215 | Disc drive suspension including a wired flexure with conductors arranged to reduce crosstalk A wiring portion has first and second write conductors, first and second read conductors, and an insulating layer. The first write conductor, first and second read conductors, and second write conductor are arranged three-dimensionally at different height levels in ... | 08/15/2006 |
| 7088543 | Suspension having magnetic head assembly mounted thereon and magnetic recording disk drive using the suspension A suspension having a magnetic head assembly 1 mounted thereon is provided, wherein the magnetic head assembly comprises: a write head 1-2; a read head 1-1; and a resistive heating element 1-3 for controlling the flyi... | 08/08/2006 |
| 7041920 | Elongated bridge shunt switch formed by stretching and rupturing a conducting bridge Structure and method for forming a switchable shunt for a suspension assembly having conductive, insulating and metal base layers. The shunt includes a bridge in the conductive layer with either a continuous connection or small gap between ends of the bridge. The co... | 05/09/2006 |
| 7016156 | Disk drive having magnetic head conduction paths with arrangements to control impedance Magnetic disk apparatus includes an electric wiring capable of satisfying an electric condition under which high frequency recording higher than or equal to 200 MHz, a magnetic head having at least a recording device to a magnetic recording medium, and also the elec... | 03/21/2006 |
| 6975488 | Suspension interconnect with controlled noise A disk drive suspension and method has a metal load beam and an electrical interconnect assembly. The interconnect assembly has an insulative layer, a read pair of forward and return path conductive traces, a write pair of forward and return path conductive traces t... | 12/13/2005 |
| 6972932 | High-efficiency single-turn write head for high-speed recording A write element for a magnetoresistive (“MR”) head or a giant magnetoresistive (GMR) head includes a yoke and a coil. The coil made of a microstrip transmission line. The coil is a single turn and is U-shaped. The yoke of the write element includes laminated bot... | 12/06/2005 |
| 6963471 | Wiring member of a disc drive suspension having an insulating layer with thick-walled and thin-walled portions A wired flexure comprises a metallic substrate, a polyimide layer formed on the metallic substrate, and read conductors and write conductors formed on the polyimide layer. The polyimide layer has a thick-walled portion and a thin-walled portion that are different in... | 11/08/2005 |
| 6940697 | Interconnection scheme for head arms of disk drive actuator The invention includes at least one head arm providing head electrical interconnection as essentially parallel traces on at least one face of the head arm using the metallic body of the head arm as a ground plane. This insures that the neighboring pairs of parallel ... | 09/06/2005 |
| 6937442 | Contacting point damping method between flex circuit and pivot housing The present invention for a disk drive is a damping feature applied to the contact area between the flexible circuit and the pivot housing, reducing the resonance energy transferred from the flexible circuit to the pivot housing. This invention reduces the direct en... | 08/30/2005 |
| 6894874 | Disk drive having magnetic head conduction paths with arrangements to control impedance Magnetic disk apparatus includes an electric wiring capable of satisfying an electric condition under which high frequency recording higher than or equal to 200 MHz, a magnetic head having at least a recording device to a magnetic recording medium, and also the elec... | 05/17/2005 |
| 6807029 | Wiring member of suspension for disc drive having electrically conductive substrate with slit between read wire and write wire A wired flexure comprises a substrate formed of an electrically conductive material, a read wire provided on the substrate so as to extend along the substrate, a write wire provided on the substrate so as to extend along the read wire, a slit formed between the read... | 10/19/2004 |
| 6762913 | Method for controlling common mode impedance in disk drive head suspensions A method of adjusting the common mode impedance while enabling maintenance of the differential mode impedance of a pair of traces located with respect to a ground plane formed by a load beam or trace assembly of a disk drive head suspension. The method includes form... | 07/13/2004 |
| 6714385 | Apparatus and method for controlling common mode impedance in disk drive head suspensions Apparatus and method of adjusting the common mode impedance while enabling maintenance of the differential mode impedance of a pair of traces located with respect to a ground plane formed by a load beam or trace assembly of a disk drive head suspension. The ground p... | 03/30/2004 |
| 6704164 | Vibration reducing members for head suspensions An object of the present invention is to provide a head suspension, which can be assembled without damaging the head element. In the head suspension, a rigid section holds a head slider which writes data on and reads data from a disk. The rigid section is... | 03/09/2004 |
| 6608736 | Integrated trace suspension interconnect for high-data-rate single-ended preamplifier for (G)MR elements An interconnect circuit for a readout channel front-end for a disk drive is disclosed that includes a forward line and a return line. Both the forward line and the return line have a first end and a second end. The first end of both the forward line and t... | 08/19/2003 |
| 6529348 | Magnetic disk apparatus having an electric conducting path with a defined characteristic impedance and which interconnects a write element and a read/write integrated circuit The magnetic disk apparatus includes an electric wiring capable of satisfying an electric condition under which high frequency recording higher than or equal to 200 MHz can be accomplished. A magnetic head having at least a recording device for recording ... | 03/04/2003 |
| 6404594 | Magnetic disk drive with integrated electrical conductors for recording element The magnetic disk apparatus includes an electric wiring capable of satisfying an electric condition under which high frequency recording higher than or equal to 200 MHz can be accomplished. A magnetic head having at least a recording device for recording ... | 06/11/2002 |
| 6388834 | Grounding post to reduce EMI noise effects in disc drives An apparatus for reducing transmission of EMI noise effects originating within disc drives by including a grounding member positioned between at least a portion of a flex circuit and an EMI noise source. The grounding member makes electrically conductive ... | 05/14/2002 |
| 6385014 | Wireless disk drive suspension with optimized mechanical and electrical properties Excessive capacitive coupling in a wireless disk drive suspension having minimum dielectric film thickness for better mechanical properties is reduced by removing a portion of the wireless conductor immediately opposite the suspension conductors only to o... | 05/07/2002 |
| 6333837 | Flexible circuit suspension A disk drive suspension comprising a flexible circuit electrical connector and a steel load beam has a second dielectric layer free of conductive traces and not part of the flexible circuit positioned and maintained between the flexible circuit and the lo... | 12/25/2001 |
