Class / Patent application number | Description | Number of patent applications / Date published |
360245800 | Electrical connection detail | 73 |
20080304184 | WRITE TRANSDUCER AND SYSTEM IMPLEMENTING SAME - A magnetic, head in one embodiment includes a substrate; a write transducer; leads coupled to the write transducer; and a resistor coupled between one of the leads and the substrate or a common line. A magnetic storage system in another embodiment includes a cable having a characteristic impedance associated with a pair of conductors; a write signal generator coupled to the pair of conductors; at least one first device coupled to the cable in series with the write signal generator and at least one of the cable conductors, the at least one first device providing a first impedance; at least one second device providing a second impedance and coupled to a second end of the cable in series with at least one of the cable conductors and the first device; and a head having a write transducer coupled to the at least one second device. | 12-11-2008 |
20090021866 | Magnetization state control device and magnetic information recording device - The magnetization state of a ferromagnetic material is controlled by applying a current pulse to it while externally applying a weak magnetic field to it. The magnetic state of a ferromagnetic material can be switched between a uniformly magnetized state and a multiple magnetic domain structure by controlling the direction and intensity of the magnetic field applied to it and the intensity and pulse width of the current pulse. When an external magnetic field is applied, the possibility of occurrence of the reversal of the magnetic state upon application of the current pulse shows a hysteresis, and the reversal of the magnetic state can be controlled reliably. The intensity of the magnetic field to be applied may be as weak as a few gauss. Furthermore, by using such magnetic information recording elements, a magnetic information recording device (memory) that can achieve a high degree of integration can be produced. | 01-22-2009 |
20090097163 | Data storage device - Embodiments of the present invention help to provide a sealed hard disk drive (HDD) with high reliability. According to one embodiment, a HDD is a hermetically sealed HDD. A base has an opening of a through-hole on its bottom; a feedthrough is provided so as to close the opening. A flange of the feedthrough has a larger outline than the opening, and its rim is joined to the base with solder at the solder joint. The solder at the solder joint is mainly composed of Sn and contains 15 atomic percent to 27 atomic percent of indium. This solder reaches the γ phase from −150° C. to 120° C. Accordingly, even if the HDD has been exposed at low temperature for a long time, the solder joint is not broken so that helium gas does not leak. | 04-16-2009 |
20090135524 | Magnetic head driving circuit, magnetic recording/reproducing device and reproducing head protection method - A magnetic recording and reproducing device is a hard disk device which writes information onto a magnetic disk (not shown), or reads information therefrom, and includes: a reproducing head; a recording head; and a magnetic head driving circuit. The magnetic head driving circuit is a circuit, by which driving of the reproducing head and the recording head is controlled, and onto which the reproducing head, a recording head driving circuit, a control unit, and a variable impedance element are integrated. This magnetic head driving circuit is switched on a time division base to a read mode during reproducing operation, and to a write mode during recording operation. The control unit reduces the impedance of the variable impedance element during the write mode. | 05-28-2009 |
20090141404 | Flex cable assembly damper - A flex cable assembly for a head stack assembly of a hard disk drive comprises a flex cable for conducting data signals from the head stack assembly to a connector. The flex cable comprises a dynamic loop section between a termination for the head stack assembly and the connector. A constrained layer damper is attached adjacently to an area of the flex cable that is configured to receive the coupler. The constrained layer damper extends into the dynamic loop section of the flex cable. | 06-04-2009 |
20090190263 | SUBSTRATE FOR SUSPENSION, AND PRODUCTION PROCESS THEREOF - A substrate for suspension which is produced at low costs and can sufficiently attain the prevention of damage by electrostatic discharge and restraint of noises. The substrate for suspension includes: a metallic substrate, an insulating layer formed on the metallic substrate and having an opening from which the metallic substrate is exposed, a grounding-wiring layer formed on the insulating layer and arranged near the opening, and a ground terminal formed in the opening and contacting the metallic substrate and the grounding-wiring layer. The ground terminal is made of a metal having a melting point of 450° C. or lower. | 07-30-2009 |
20090213498 | Disk drive device - Embodiments of the present invention provide a highly reliable hard disk drive (HDD). In an HDD according to an embodiment of the present invention, solder at a solder joint for joining a pad of a head slider and a pad of a transmission wiring comprises the main component of Sn and atomic percent to atomic percent of indium. The solder exhibits they phase within the range of −150° C. to 120° C. Accordingly, even if the HDD is left at a low temperature for a long time, the solder joint is not broken. | 08-27-2009 |
20090244782 | DISK DRIVE - A disk drive has: a disc-shape information recording medium; a swing arm having a base and a pair of arm sections extended along the surface and backside of the information recording medium; and two opposed connecting boards attached to the arm sections and each having an arm-side conductor pattern. The disk drive further has a circuit board with a signal-processing circuit processing a signal; and a relay board relaying the signal between the circuit board and the swing arm and having one end fixed to the circuit board and the other end provided with a fixed section fixed to the swing arm. The fixed section has a connection piece provided on a leading-end side of the fixed section, sandwiched between the connecting boards in a direction intersecting the connecting boards, and having a circuit-side conductor pattern connected to the arm-side conductor pattern at an edge contacting the connecting board. | 10-01-2009 |
20090290261 | CARRIAGE ASSEMBLY AND DISK DRIVE - A carriage block body is coupled to a support shaft for relative rotation. A carriage arm extends from the carriage block body along an imaginary plane perpendicular to the longitudinal axis of the support shaft. A head suspension is attached to the tip end of the carriage arm. A wiring extends outside the contour of the head suspension along the side of the carriage arm. A projection protrudes from the side of the carriage arm. An adhesive is utilized to bond the wiring to the projection. Even though airflow generated along the surface of a rotating disk medium collides against the carriage arm, the wiring is reliably prevented from fluttering outside the contour of the head suspension. The vibration of the wiring is thus significantly suppressed. The carriage arm is prevented from vibrating. | 11-26-2009 |
20090323225 | BASEPLATE INTERCONNECT - An actuator and associated method is provided, the actuator having an arm defining an aperture, an electrical circuit supported by the arm and terminating at a contact, a flexure assembly defining a boss and supporting a second electrical circuit terminating at a second contact, wherein the contacts are resultingly positioned in operable mating engagement with each other placing the electrical circuit in electrical communication with the second electrical circuit when the boss is operably disposed within the aperture and there affixed to the arm. | 12-31-2009 |
20100007993 | INTEGRATED LEAD SUSPENSION WITH MULTIPLE CROSSOVER COPLANAR CONNECTION OF THE ELECTRICALLY CONDUCTIVE TRACES - An integrated lead suspension (ILS) or flexure has a connection scheme that allows for coplanar and interleaved conductive traces between read/write circuitry and a read/write head in a magnetic recording disk drive. The flexure has an electrically conductive substrate and insulator layer with the traces formed on the insulator layer. At each end of the flexure there is an island of substrate material with vias in the insulator layer that permit electrical connection to the islands. The conductive traces are grouped into two sets and extend generally parallel along the length of the flexure, with the traces from one set being interleaved with traces from the other set and each set carrying one of the positive or negative signals. At one of the ends, all of the traces from one set are connected through the vias to the island at that end, and at the other end all of the traces from the other set are connected through the vias to the island at that end. Each signal is distributed among the multiple traces of a set by means of connection through the vias to the island. | 01-14-2010 |
20100020446 | HIGH BANDWIDTH AND MECHANICAL STRENGTH BETWEEN A DISK DRIVE FLEXIBLE CIRCUIT AND A READ WRITE HEAD SUSPENSION - A base layer for a suspension. The base layer includes a structure. The structure has a slider end portion and a tail portion. The structure includes an opening in the tail portion. The opening provides access to a conductive assembly coupleable there with. The structure also includes a strengthening member integrated within said opening. | 01-28-2010 |
20100110591 | MAGNETIC UNIT AND MAGNETIC STORAGE DEVICE - A magnetic unit includes: a magnetic pinned layer, a first function body, and a second function body. The magnetic pinned layer is provided that a magnetization direction is pinned. The first function body is provided in contact with the magnetic pinned layer and performs a function with the magnetic pinned layer. The second function body is provided in contact with the magnetic pinned layer. The second function body is any of a nonmagnetic conductor, a nonmagnetic insulator, and a function body. The magnetic pinned layer includes: a plurality of magnetic substance layers, and a nonmagnetic conductive layer provided between the plurality of magnetic substance layers. The nonmagnetic conductive layer ferromagnetically or antiferromagnetically couples magnetic substance layers on both sides. A total amount of magnetizations of the plurality of magnetic substance layers is approximately zero. Among the plurality of magnetic substance layers, a magnitude of an anisotropic magnetic field of a group of magnetic substance layers directed toward a first direction is different from that of a group of magnetic substance layers directed toward a second direction. | 05-06-2010 |
20100118443 | Suspension board with circuit and producing method thereof - A suspension board with circuit includes a conductive pattern, a board main body portion on which a magnetic head is mounted, and an auxiliary portion capable of being folded back with respect to the board main body portion so as to face a back surface of the board main body portion. The conductive pattern includes a first conductive pattern including a first terminal electrically connected to an external circuit, and a second terminal electrically connected to the magnetic head, and a second conductive pattern including a third terminal electrically connected to the external circuit, and a fourth terminal electrically connected to an electronic element. Both of the first terminal and the second terminal are disposed on the board main body portion. The third terminal is disposed on the board main body portion or on the auxiliary portion, and the fourth terminal is disposed on the auxiliary portion. | 05-13-2010 |
20100142096 | INTEGRATED SLIDER BIAS CONTROL - In a method of biasing a slider, a bias voltage is generated for biasing a slider. The bias voltage is integratedly coupled to a conductive body of the slider via an existing signal path of the slider such that the slider is biased with the bias voltage. The existing signal path is primarily used for conveying another signal to or from the slider but at least sometimes conveys the bias voltage to the conductive body in an integral fashion along with another signal. | 06-10-2010 |
20100142097 | SUSPENSION SUBSTRATE, SUSPENSION, HEAD SUSPENSION AND HARD DISK DRIVE - It is a primary object of the present invention to provide a suspension substrate having reduced strain. The present invention solves the problem by providing a suspension substrate comprising: a fundamental structure in which a metal substrate, a first insulation layer, and a wiring are laminated in this order; a wide wiring laminate structure provided with a wide wiring first insulation part of the first insulation layer, a first wide wiring formed on the wide wiring first insulation part, a second insulation part formed on the first wide wiring, and a second wide wiring formed on the second insulation part; and a narrow wiring-containing structure provided with a narrow wiring first insulation part of the first insulation layer and a first narrow wiring formed on the narrow wiring first insulation part, wherein the narrow wiring-containing structure is provided with a strain-limiting part formed to limit strain generated in relation to the wide wiring laminate structure. | 06-10-2010 |
20100157482 | SUSPENSION SUBSTRATE, SUSPENSION, SUSPENSION WITH HEAD AND HARD DISK DRIVE - A main object of the present invention is to provide a suspension substrate which can decrease the whole thickness thereof and limit the generation of warpage. To attain the object, the present invention provides a suspension substrate comprising: an insulation layer, a pair of wirings consisting of an upper wiring formed on one surface of the insulation layer and a lower wiring formed on the other surface of the insulation layer, and a metal substrate formed on the surface of the insulation layer on the lower wiring side. | 06-24-2010 |
20100182721 | HEAD SUSPENSION - A head suspension has a jumper capable of protecting an insulating cover layer of the jumper from being abraded by an edge of a base plate of the head suspension. The head suspension includes the base plate, a load beam, an actuator element to be deformed in response to applied power and thereby move the load beam relative to the base plate, a flexure arranged along a side of the base plate, and the jumper having a first end electrically connected to the actuator element, an intermediate part extending over a base plate edge of the base plate, and a second end electrically connected to the flexure, to supply power from the flexure to the actuator element. The jumper is composed of the insulating cover layer, a conductor layer, an insulating layer, and a metal layer that are laid one on another from a surface side of the base plate. The conductor layer is diverged in a direction in which the layers of the jumper are laid one on another, to form an escape recess to avoid an edge of the base plate edge. | 07-22-2010 |
20100220414 | HEAD GIMBAL ASSEMBLY WITHOUT BUS TRACES FOR PLATING - Head gimbal assemblies for data storage systems are provided. Some embodiments include a dielectric layer having a first and a second side. A first conductive layer is on the first dielectric layer. The first conductive layer includes a pad and a trace. A second conductive layer is on the second dielectric side. A via extends from the first dielectric layer side to the second dielectric layer side. The via electrically connects the first conductive layer to the second conductive layer. | 09-02-2010 |
20100226047 | DISK DRIVE FLEXURE - 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 the metal base. The metal base comprises ground regions continuous in a longitudinal direction thereof, ladder portions extending transversely relative to the metal base, and band-like portions formed between the openings. The band-like portions are located so as to overlap a gap between the conductors when the metal base is viewed vertically thicknesswise from above. The band-like portions extend longitudinally relative to the metal base along the conductors. Junctions are formed between the ground regions and band-like portions. | 09-09-2010 |
20100290160 | DISK DRIVE FLEXURE - A first conductor member includes an amplifier-side first conductor, a head-side first conductor, and first and second interleaved conductors. A second conductor member includes an amplifier-side second conductor, a head-side second conductor, and third and fourth interleave conductors. The second interleaved conductor is connected to the amplifier-side first conductor through a first jumper conductor. The fourth interleave conductor is connected to the head-side second conductor through a second jumper conductor. The jumper conductors are formed by partially etching a metal base. The jumper conductors are individually inclined at angles of 45° or less to an axis which extends in a wiring direction of each of the interleaved conductors. | 11-18-2010 |
20110026165 | SYSTEM AND APPARATUS FOR VIBRATION DAMPING OF INTEGRATED LEAD SUSPENSIONS IN HIGH DENSITY MAGNETIC STORAGE DEVICES - An integrated lead suspension (ILS) has a constrained layer damper (CLD) that attenuates vibration of the ILS. The CLD may be applied over an already assembled ILS such that the CLD is applied to the cover layer, to the base layer, or to both. Alternatively, the ILS may be encapsulated via a deposition process such that a damping layer is sandwiched between the conductor layer and the cover layer of the ILS, between the conductor layer and the dielectric layer of the ILS, or both. | 02-03-2011 |
20110051292 | DISK DRIVE COMPRISING IMPEDANCE DISCONTINUITY COMPENSATION FOR INTERCONNECT TRANSMISSION LINES - A disk drive comprising a disk, and a head actuated over the disk, the head comprising a read element and a write element. The disk drive further comprises a preamp and an interconnect comprising a first transmission line and a second transmission line coupling the head to the preamp. A compensation network is disclosed operable to compensate for an impedance discontinuity in the first and second transmission lines, the compensation network comprising a first trace and a second trace connected in parallel with the first and second transmission lines, wherein a shape of the first and second traces varies to form at least a first capacitor. | 03-03-2011 |
20110090601 | Suspension with flexure tail and manufacturing method thereof, head stack assembly and disk drive unit with the same - A suspension for a head stack assembly, comprises a flexure with a suspension tongue, a flexure tail and a plurality of conductive traces extending between the suspension tongue and the flexure tail, each of said conductive traces having one end thereof terminated to an electrical pad formed on the suspension tongue for electrical connection to a slider and the other end thereof terminated to a connection pad formed on the flexure tail for both testing and bonding such that the flexure has no additional testing pads. The suspension with a flexure tail able to make the bonding and the dynamic performance testing on the pad area and thus reduce suspension length and increase flexure density for low cost. The invention also discloses a manufacturing method of the suspension and a HSA with such an suspension and a disk drive unit having such an HSA. | 04-21-2011 |
20110134571 | CAPACITIVE COUPLING IN A HARD DISK DRIVE - A hard disk drive including a base plate and a drive cover. The hard disk drive also includes a capacitive coupling feature disposed between the base plate and the drive cover. The capacitive coupling feature is configured to provide grounding between the base plate and the drive cover. | 06-09-2011 |
20110141627 | MAGNETIC DISK DEVICE AND GUIDE MEMBER FOR GUIDING A FLEXIBLE WIRING BOARD - A disk drive comprising a guide member configured to guide a strip-shaped flexible wiring board, wherein the strip-shaped flexible wiring board has one end attached to a side portion of a carriage that is rotatably supported, in such a way that another end thereof is oriented toward a mounting position. A U-shaped component of the guide member which comprises a pair of edge components and is formed into a U-shape, wherein the U-shaped component is inserted between two projecting components comprising a front-side projecting component and a rear-side projecting component which are arranged to a front and a rear portion of the carriage respectively and are provided on a side portion of the carriage, and the pair of edge components come into contact with the two projecting component, respectively, wherein the U-shaped component is elastically deformed in such a way that the pair of edge components come closer together. | 06-16-2011 |
20110149441 | MAGNETIC RECORDING DISK DRIVE WITH WRITE DRIVER TO WRITE HEAD TRANSMISSION LINE HAVING NON-UNIFORM SECTIONS FOR OPTIMAL WRITE CURRENT PULSE OVERSHOOT - An interconnect between the write driver and the write head in a magnetic recording disk drive enables an inherent write current overshoot. The interconnect includes an integrated lead suspension (ILS) and a short flex cable that connects the write driver circuitry to the ILS. The interconnect is a two-segment transmission line, with the first segment connected to the write driver having multiple sub-segments or sections with non-uniform impedance levels. The section of the first segment that connects to the write driver is the short flex cable and has an impedance substantially higher than the source impedance Z | 06-23-2011 |
20110149442 | CONDUCTOR SUSPENSION STRUCTURE FOR HARD DISK DRIVES - An integrated conductor/suspension structure for supporting and electrically connecting a write/read head in a hard disk drive and methods of making the conductor/suspension structure are provided. The integrated conductor/suspension structure may allow for an increased characteristic-impedance range, greater interference shielding and a reduction of signal loss that is contributed by a lossy conductive substrate. The suspension structure includes apertures formed therein that result in a reduction in the lossy material and its effect on the electrical signals. In addition, the conductor/suspension structure of the present invention provides shielding to reduce the interference from external electric fields. | 06-23-2011 |
20110149443 | TUNABLE MICROSTRIP TRANSMISSION PATH IN A HARD DISK DRIVE - A disk pack, comprising at least one hard disk, is rotatably mounted to a housing. The disk pack defines an axis of rotation and a radial direction relative to the axis. At least one actuator mounted to the housing is coupled with a suspension and is movable relative to the disk pack. A slider, comprising a slider body and a head configured to read data from and write data to at least one hard disk, is coupled with the suspension. A first suspension electrical interconnect is configured to electrically couple a first signal conducting pathway with the slider and with a first non-terminated signal pathway. A second suspension electrical interconnect is configured to electrically couple a second signal conducting pathway with the slider and with a second non-terminated signal pathway. The length of the second non-terminated signal pathway is selected to achieve a desired impedance level. | 06-23-2011 |
20110157750 | TOP BOND PAD FOR TRANSDUCING HEAD INTERCONNECT - A slider includes a slider body having a first side and edges defined adjacent to the first side, at least two separate insulators each adjacent to the first side of the slider body and supported by the slider body, and a conductive trace adjacent to each of the at least two separate insulators and opposite the first side of the slider body. The at least two separate insulators each are in physical contact with the slider body along the first side of the slider body such that the at least two separate insulators are physically attached to the slider body to electrically insulate each conductive trace from the slider body. | 06-30-2011 |
20110292549 | WIRING STRUCTURE FOR HEAD SUSPENSION - A wiring structure for a head suspension is provided. The head suspension has a head to write and read information to and from a recording medium, a load beam to apply load onto the head, a device arranged on the head and operating on low-frequency signals to achieve a function other than the information write/read function at the head, and a flexure attached to the load beam and supporting the head, the flexure including a base material made of a conductive thin plate and a base insulating layer formed on the base material. The wiring structure has a write wiring and a read wiring formed on the base insulating layer and connected to the head, a device wiring formed on the base insulating layer and connected to the device, an intermediate insulating layer on the base insulating layer. The device wiring is formed wider than the read wiring and includes positive/negative wires that are laid one on another with the intermediate insulating layer interposed between the positive/negative wires. | 12-01-2011 |
20120081815 | WIRING STRUCTURE OF FLEXURE - A wiring structure of a flexure includes wiring that includes a trace of first polarity and a trace of second polarity and transmits signals to and from a head that is supported with the flexure and writes and reads data to and from a recording medium and an interleaved section formed at least partly in the wiring where the traces are each divided into sub-traces, the sub-traces being alternated in a width direction of the wiring, the sub-traces of each trace being connected to each other on each side of the interleaved section, an outer one of the sub-traces of each trace being narrower than an inner one of the same. The wiring structure reduces partial dips in the frequency characteristic of signal transmission loss (loss-to-frequency characteristic) of the wiring at the interleaved section. | 04-05-2012 |
20120113547 | Suspension board with circuit and producing method thereof - A suspension board with circuit includes a metal supporting board; an insulating layer formed on the metal supporting board having an opening penetrating in the thickness direction formed therein; and a conductive pattern formed on the insulating layer including an external-side terminal electrically connected to an external board. The external-side terminal is filled in the opening of the insulating layer. In the metal supporting board, a support terminal electrically insulated from the surrounding metal supporting board and electrically connected to the external-side terminal is provided. The suspension board with circuit includes a metal plating layer formed below the support terminal and an electrically-conductive layer interposed between the support terminal and the metal plating layer having a thickness of 10 nm or more to 200 nm or less. | 05-10-2012 |
20120140360 | INTEGRATED LEAD SUSPENSION (ILS) FOR USE WITH A DUAL STAGE ACTUATOR (DSA) - Approaches for integrated lead suspension that provides many benefits, such as enabling a dual stage actuator (DSA) to be used with a single layer flex with a reduced amount of crosstalk. An integrated lead suspension comprises a tail end having a plurality of conductive pads positioned thereat. The plurality of conductive pads includes a first and second dual stage actuator (DSA) pad. The first and second DSA pads are electrically coupled to a conductive member by way of conductive vias. The conductive member may be a stainless steel island. The first DSA pad conducts a signal to a first terminal at each of a plurality of dual stage actuators, while a second terminal at each of the plurality of dual stage actuators is connected to ground. | 06-07-2012 |
20120162825 | INTERLEAVED CONDUCTOR STRUCTURE WITH WRAP AROUND TRACES - An interleaved conductor structure for electrically connecting the read/write electronics to a read/write head in a hard disk drive is provided. The interleaved conductor structure may allow for an increased characteristic-impedance range, greater interference shielding and a reduction of signal loss that is contributed by a lossy conductive substrate. The electrical traces may have different widths, be offset, or even wrap around each other at the via connections. | 06-28-2012 |
20120212858 | FLEXURE AND HEAD SUSPENSION WITH FLEXURE - A flexure is capable of securing strength of the flexure while surely preventing from deteriorating electric characteristic thereof. The flexure includes a metal substrate, an insulating layer formed on the metal substrate, and a wiring pattern arranged on the insulating layer and having a first end connected to the head and a second end that is provided with a terminal for external connection. The insulating layer extends a back of the terminal and a surrounding portion of the back. The metal substrate has an isolated portion that is on the back of the terminal through the insulating layer and is separated from the other portion of the metal substrate. | 08-23-2012 |
20120229934 | COPPER RESIDUAL STRESS RELAXATION REDUCTION MEANS FOR HARD DISK DRIVE SLIDER GIMBALS - Disclosed are various techniques for reduction of the magnitude of the residual stress in the HDD gimbal circuits, or more specifically, the residual plastic strain. Various trace structures of the gimbal circuits as well as stress suppressors are utilized to achieve the reduction of the residual stress in the circuit. | 09-13-2012 |
20120307404 | THREE-TERMINAL SPIN-TORQUE OSCILLATOR (STO) - A spin-torque oscillator (STO) has a single free ferromagnetic layer that forms part of both a giant magnetoresistance (GMR) structure with a nonmagnetic conductive spacer layer and a tunneling magnetoresistance (TMR) structure with a tunnel barrier layer. The STO has three electrical terminals that connect to electrical circuitry that provides a spin-torque excitation current through the conductive spacer layer and a lesser sense current through the tunnel barrier layer. When the STO is used as a magnetic field sensor, the excitation current causes the magnetization of the free layer to oscillate at a fixed base frequency in the absence of an external magnetic field. A detector coupled to the sense current detects shifts in the free layer magnetization oscillation frequency from the base frequency in response to external magnetic fields. | 12-06-2012 |
20130003227 | POLYETHERIMIDE RESINS WITH VERY LOW LEVELS OF RESIDUAL CONTAMINATION - Compositions and methods for producing compositions comprising a monoamine-endcapped polyimide component. Based on a gas chromatography mass spectroscopy analysis of a surface rinse of the composition performed at room temperature, the composition can have at least one surface with less than or equal to 5 ppb releasable phosphorous residuals, and less than or equal to 5 ppb releasable volatile organic compound residuals. The composition can also comprise less than or equal to 10 ppb combined releasable residuals. Because of the very low levels of residual contamination, the compositions can be used to produce a variety of articles, including a disk drive. | 01-03-2013 |
20130021699 | SUSPENSION BOARD WITH CIRCUIT - A suspension board with circuit includes an external slider on which a magnetic head is mounted and an external electronic element provided in its vicinity. The suspension board with circuit includes a metal supporting board, a first insulating layer laminated on a top surface thereof, a first conductive pattern including a first terminal and laminated on the top surface side of the first insulating layer, a second insulating layer laminated on a back surface of the metal supporting board, and a second conductive pattern including a second terminal and laminated on the back surface side of the second insulating layer. The suspension board with circuit is formed with a communication space extending therethrough in a top-back direction and respective end edges of the first insulating layer and the second insulating layer protrude into the communication space to positions inner than that of an end edge of the metal supporting board. | 01-24-2013 |
20130088796 | METHOD OF AND APPARATUS FOR MEASURING ATTITUDE ANGLES OF A TONGUE WITH A FITTING FACE INVOLVING A PLURALITY OF ELECTRODES - A method of measuring attitude angles of a tongue of a head suspension, the tongue including a fitting face on which a plurality of electrodes are arranged, emits a single collimated laser beam to an area of a fitting face containing at least two of electrodes, detects a reflected beam from the fitting face, extracts electrode reflective components corresponding to the electrodes from the reflected beam, and according to the electrode reflective components, measures the attitude angles of the tongue. | 04-11-2013 |
20130176645 | INTERLEAVED CIRCUIT OF FLEXURE FOR DISK DRIVE - An interleaved circuit has first branch conductors branching from a first conductor, second branch conductors branching from a second conductor, a metal base having an opening, an insulating layer formed on the metal base, an electrically insulating first cover resin layer, and an electrically insulating second cover resin layer. The first branch conductors are formed on the insulating layer. The first branch conductors are covered by the first cover resin layer. The second branch conductors are formed on the first cover resin layer. The second branch conductors are individually located between the first branch conductors. The second branch conductors are covered by the second cover resin layer. | 07-11-2013 |
20130176646 | INTERLEAVED CIRCUIT OF FLEXURE FOR DISK DRIVE - An interleaved circuit has first branch conductors branching from a first conductor, second branch conductors branching from a second conductor, a metal base, an insulating layer of a dielectric, and a cover resin layer. The metal base comprises an opening. The first branch conductors and the second branch conductors are arranged alternately in a transverse direction of the insulating layer. A slit is formed in the insulating layer and the cover resin layer. The slit comprises a pair of opposite walls and an air gap between the opposite walls. Air introduced into the air gap forms an air layer. The slit extends longitudinally relative to the interleaved circuit along at least a part of the branch conductors. | 07-11-2013 |
20130321958 | ACTUATOR MOUNTING SECTION OF DISK DRIVE SUSPENSION, METHOD OF APPLYING ELECTRICALLY CONDUCTIVE PASTE, AND PASTE APPLICATION DEVICE - Actuator elements are accommodated in openings formed in a conductive plate. These actuator elements are secured to the conductive plate by a resin bonding material. An electrode of each actuator element and the conductive plate are electrically connected to each other by a bridge junction consisting of an conductive paste. A paste application device discharges the conductive paste toward the bridge junction by air. A control unit configured to control the discharge of the conductive paste sets the air pressure according to the elapsed time of use of the conductive paste so that the height of the paste above the resin bonding material is not less than a target height. The target height is maintained by increasing the air pressure with increase of the elapsed time of use of the conductive paste. | 12-05-2013 |
20140063660 | DAMPED DUAL STAGE ACTUATION DISK DRIVE SUSPENSIONS - Various embodiments concern a DSA suspension of a disk drive. The DSA suspension comprises a support configured to attach to the disk drive, the support comprising a proximal portion, a distal portion, and a linkage portion therebetween. The DSA head suspension system further comprises at least one motor mounted on the support, each motor positioned between the proximal portion and the distal portion. The DSA suspension further comprises a damper attached to some or all of the proximal portion, the motor(s), the distal portion, and the linkage portion. The damper can be a single layer or multilayered. The damper can comprise viscoelastic material. The damper can be adhesive. The damper may only be attached to the support and the motors and not to other components of the DSA suspension. | 03-06-2014 |
20140313619 | SUSPENSION BOARD WITH CIRCUIT AND SUSPENSION BOARD ASSEMBLY SHEET WITH CIRCUIT, AND METHOD OF MANUFACTURING THE SAME - First and second laminated structures are respectively formed at one surface and the other surface of an insulating layer. A laminate is formed of the first laminated structure, the insulating layer and the second laminated structure. A heat-assisted wiring trace is included in the first laminated structure, and a support substrate and a connection terminal are included in the second laminated structure. The surface of the connection terminal is exposed at the other surface of the insulating layer. A first portion of the laminate including the connection terminal has a thickness smaller than the thickness of second and third portions of the laminate including portions on both sides of the connection terminal. | 10-23-2014 |
20150109704 | SUSPENSION SUBSTRATE, SUSPENSION, HEAD SUSPENSION, HARD DISK DRIVE, AND METHOD FOR MANUFACTURING SUSPENSION SUBSTRATE - A suspension substrate of the present invention includes an insulating layer, a spring material layer, and a plurality of wirings, wherein one wiring of the plurality of wirings includes a head-side wiring part and a plurality of division wiring parts, respectively bifurcated from the head-side wiring part. The spring material layer includes a spring-material-layer main body, a first spring-material-layer separated body and a second spring-material-layer separated body. The division wiring parts of the one wiring are respectively connected with the first spring-material-layer separated body, via a pair of conductive connection parts, respectively extending through the insulating layer. The first spring-material-layer separated body is located on one side relative to the longitudinal axis, while the second spring-material-layer separated body is located on the other side relative to the longitudinal axis. | 04-23-2015 |
360245900 | Flexible printed circuit type | 26 |
20080239578 | Magnetic disk drive, wiring connection structure and terminal structure
- Terminals of a flexible printed circuit board and terminals of a wiring trace in a head suspension assembly are to be connected with each other by soldering without causing a soldering defect. In an embodiment, a terminal structure of a multi-connector in a wiring trace which includes an insulating layer and a conductor pattern portion formed on a surface of the insulating layer is provided with exposed portions of terminals exposed from apertures formed in part of the insulating layer and is also provided with lining portions adjacent to the exposed portions in a longitudinal direction of the conductor pattern portion and bonded to the insulating layer. Even if terminals of the multi-connector are cracked when soldered, not only conductivity is ensured, but also it is possible to strengthen the terminals, because the lining portions of the terminals are bonded to the insulating layer. | 10-02-2008 |
20080278857 | Flexible circuit board, motor equipped with the flexible circuit board, and hard disc drive apparatus - By providing a flexible circuit board of a laminated structure capable of preventing contamination such as fluff, miniscule pieces of iron, or textile scraps from becoming affixed to an outer peripheral cross-sectional surface of the flexible circuit board. It is possible to prevent contamination from becoming affixed to an outer peripheral cross-sectional surface of a flexible circuit board by setting a pressure-sensitive layer in such a manner that the pressure-sensitive layer does not protrude into the outer periphery of the flexible circuit board while affixing the flexible circuit board comprising of an insulating base film layer having a pressure-sensitive layer, a circuit conduction layer, and a cover film layer to a structure. | 11-13-2008 |
20080278858 | Wired circuit board - The wired circuit board includes a metal supporting board, a metal foil formed on the metal supporting board, a first insulating layer formed on the metal supporting board so as to cover the metal foil, and a conductive pattern formed on the first insulating layer and having a plurality of wires. The metal foil is arranged along a lengthwise direction of each of the wires so as not to be opposed to part of the wires in a thickness direction and so as to be opposed to a remainder of the wires in the thickness direction. | 11-13-2008 |
20080291575 | Flexure, method of manufacturing flexure, and head suspension with flexure - A flexure has a substrate made of a thin conductive metal plate, a base insulating layer made of flexible resin formed on the substrate, wiring patterns formed on the base insulating layer and connected to a slider mount, and a cover insulating layer formed over the wiring patterns. The flexure is substantially coated with a conductive polymer layer having a thickness in the range of 18 to 130 nm. The flexure prevents electrostatic accumulation and ion migration. | 11-27-2008 |
20090116150 | Suspension board with circuit - A suspension board with circuit includes a metal supporting board, an insulating layer formed on the metal supporting board, a conductive layer formed on the insulating layer, and a pedestal for supporting a slider. The pedestal includes a lower pedestal made of the insulating layer, and formed in a continuous frame shape so as to surround a bonding surface of the metal supporting board to the slider, and an upper pedestal made of the conductive layer, and formed in a discontinuous frame shape on the lower pedestal. | 05-07-2009 |
20090207529 | Flexible printed cable, head stack assembly with the same and manufacturing method thereof - A HSA includes a plurality of HGAs and an FPC. The FPC includes a connector for connecting with a control system, a voltage trace and a ground trace. A common voltage end of the voltage trace has a plurality of first voltage pads and a plurality of second voltage pads arranged adjacent to the corresponding first voltage pads respectively and electrically isolated from the respective first voltage pads. Each of the second voltage pads connects with the micro-actuator of the corresponding HGA. A common ground end of the ground trace has a plurality of micro-actuator ground pads, each of which connects with a micro-actuator of the corresponding HGA. The second voltage pads and the corresponding first voltage pads are connected with each other after the micro-actuator are tested. The invention also discloses a manufacturing method of the HSA. | 08-20-2009 |
20090219652 | Actuator for access to strorage media - The invention relates to actuators on pickups for access to moving storage media. An actuator according to the invention comprises a circuit board which, in an edge region, has a metallization on its edge or metallizations adjacent to the edge on two or more inner or outer surfaces, suspension wires for connecting the actuator to a carrier being soldered onto these metallizations. | 09-03-2009 |
20100033877 | ALIGNING DEVICE, ALIGNING METHOD, AND COMPUTER PRODUCT - An aligning device includes a recognizing unit and a determining unit. The recognizing unit recognizes an intersection formed by two straight lines not parallel to each other among a plurality of straight lines of a register mark. The determining unit determines a position based on the recognized intersection. The register mark is used when an FPC terminal and a head terminal are superposed and connected. The FPC terminal is a wiring pattern formed on an FPC in a magnetic disk device. The head terminal is one of wiring patterns that are connected to a magnetic head in the magnetic disk device and is located in a portion that is superposed with the FPC terminal. The determining unit determines a position on the FPC where the head terminal is superposed. | 02-11-2010 |
20100118444 | FLEX CABLE FOR A HARD DISK DRIVE HAVING AN INTERROGATION TRACE - A flex cable for a head stack assembly of a hard disk drive comprises a base film, a first adhesive layer coupled with the base film, and at least one interrogation trace and at least one signal trace coupled with the first adhesive layer. The interrogation trace is configured to be probed to measure a deterioration of electrical conductivity. The flex cable has a second adhesive layer that is coupled with the interrogation trace, the signal trace, and the first adhesive layer. The flex cable comprises a cover film coupled with the second adhesive layer. | 05-13-2010 |
20100128398 | CONNECTING A PREAMPLIFIER TO A PRINTED CIRCUIT BOARD ASSEMBLY ON A HARD DISK DRIVE - Connecting a preamplifier to a printed circuit board assembly on a hard disk drive. The disk includes a housing, a head stack assembly coupled with the housing, a printed circuit board assembly comprising via holes, a preamplifier coupled with the head stack assembly, and at least one deformable pogo pin configured to mechanically and communicatively connect the printed circuit board assembly to the preamplifier upon insertion into the via holes, further configured to comprise a tip and a shaft, and further configured to deform upon insertion into the via holes. | 05-27-2010 |
20100134925 | APPARATUS MINIMIZING IMPEDANCE IN FLEX-TO-PRINTED CIRCUIT BOARD CONNECTION THROUGH THE DISK BASE OF A HARD DISK DRIVE - This application discloses a hard disk drive, a head stack assembly, and a printed circuit board configured to include impedance patches on the flex ground plane, the flex power plane, the printed circuit ground plane and/or the printed circuit power plane over or under a connector site in the disk base that conveys access read and write differential signals for the sliders' access of rotating disk surfaces. These impedance patches minimize impedance discontinuities in the read and/or write differential signals through the connector site, which may improve the ability of the hard disk drive to transmit these signals at higher frequencies. | 06-03-2010 |
20100172058 | FLEXIBLE WIRING UNIT AND ELECTRONIC DEVICE - A reciprocating motion of a head unit produces a change in front-to-back length of the lower face of a flexible substrate opposing a metal base. However, between the lower face of the flexible substrate and the upper face of the metal base opposing each other, a non-conductive substrate spacer of a predetermined plate thickness is constantly interposed. Such structure suppresses fluctuation in impedance of the flexible substrate arising from fluctuation in capacitance between the flexible substrate and the metal base, within a predetermined range. Consequently, with the structure that the moving heat unit is connected to the flexible substrate, a communication error of the flexible substrate, can be prevented. | 07-08-2010 |
20100188778 | Disk Drive Assembly Having Flexible Support for Flexible Printed Circuit Board - A disk drive assembly includes a movable assembly having a mounting arm, a stationary electronics module, a flexible printed circuit board (PCB) electrically connecting the movable assembly to the stationary electronics module, and a flexible support sandwiched between the flexible PCB and the mounting arm. The flexible support is attached to the mounting arm and the flexible PCB, and extends past the mounting arm of the movable assembly. The flexible support is flexible enough to flex with the flexible PCB but has sufficient rigidity so that an exit point and an exit angle of the flexible PCB can vary during movement of the movable assembly. In addition, the flexible PCB is attached to the flexible support through an adhesive layer that damps vibrations in the flexible PCB. | 07-29-2010 |
20100259852 | Hard disc drive assembly with PCB with IO and read/write connectors on the same end - This device and method provide a hard disc assembly (HDA) printed circuit board (PCB) with the input/output connector and read/write connector on the same end. This allows the printed circuit board for a hard disc assembly to be about 70% smaller and cheaper than the prior art. This device allows for higher data rates and less noise by allowing shorter signal lines between the read/write connector, the integrated circuits and the input/output connector. | 10-14-2010 |
20110058281 | DISK DRIVE SUSPENSION - A flexure with conductors is provided with a flexure tail portion. The flexure tail portion includes a metal base, an electrically insulating layer, and a conductive member. The metal base is formed with a plurality of apertures. A damper is attached to the flexure tail portion. The damper includes a viscoelastic member and a metallic constrained plate. The viscoelastic member has first and second surfaces. The first surface of the viscoelastic member is secured to the flexure tail portion. The constrained plate is secured to the second surface of the viscoelastic member. The constrained plate extends longitudinally relative to the metal base along the conductive member. The conductive member and the constrained plate face each other with the viscoelastic member therebetween. | 03-10-2011 |
20120134056 | DISK DRIVE FLEXURE - A flexure includes a metal base and a wiring portion. The wiring portion is constituted of an insulating layer, a conductor group, and others. A tongue portion is formed to a main portion of the metal base. A slider including an attached electronic unit is disposed to the tongue portion. The conductor group includes conductors electrically connected to the slider and conductors electrically connected to the attached electronic unit. Island-shaped electrical circuit portions are formed on the metal base. The electrical circuit portions are electrically independent from the main portion of the metal base. The conductors for the attached electronic unit are electrically conductive with respect to the electrical circuit portions through conductor coupling portions piercing the insulating layer. The electrical circuit portions are connected to terminal portions of the attached electronic unit. | 05-31-2012 |
20120257307 | ELECTRONIC COMPONENT AND ELECTRONIC DEVICE - According to one embodiment, an electronic component includes: an FPC wiring board in which electrical interconnections are formed on a film; a first FPC reinforcement plate which is bonded to a part of the FPC wiring board and has an opening portion; and a second FPC reinforcement plate which is bonded to another part of the FPC wiring board and has a projection which can be engaged with the opening portion of the first FPC reinforcement plate. | 10-11-2012 |
20130010392 | WIRING SUBSTRATE WITH A TORSION RESTRICTOR FOR A TERMINAL - A wiring substrate comprises a conductor pattern embedded in an insulating layer, the insulating layer having an opening to expose top and bottom faces of the conductor pattern and define a terminal of the wiring substrate, a torsion restrictor formed in the conductor pattern at a location passing over an edge of the opening, the torsion restrictor restricting torsion of the terminal, and an easily extensible part formed on at least one of the torsion restrictor and a portion of the terminal adjoining the torsion restrictor, the easily extensible part allowing the conductor pattern to longitudinally extend toward the opening. | 01-10-2013 |
20130141821 | TRACE JUMPERS FOR DISC DRIVE SUSPENSIONS - Jumper constructions for an integrated lead flexure for a disk drive head suspension include a conductive base layer, an insulating layer over the base layer, a plurality of traces arranged on the insulating layer, and an isolated conductor layer arranged under the insulating layer. The plurality of traces include a first trace and a second trace and the isolated conductor layer is electrically isolated from the conductive base layer and electrically connects the first and second traces. | 06-06-2013 |
20140177106 | SUSPENSION BOARD WITH CIRCUITS AND METHOD FOR MANUFACTURING THE SAME - A thick portion having a first thickness and a thin portion having a second thickness on a base insulating layer are formed on a conductive support substrate. The second thickness is smaller than the first thickness. A boundary surface is formed between an upper surface of the thick portion and an upper surface of the thin portion. A boundary line between the upper surface of the thick portion and the boundary surface extends in a first direction. Write wiring traces and read wiring traces are formed to extend on the thick portion and the thin portion of the base insulating layer. The lateral sides of the write wiring traces and the read wiring traces extend in a second direction that intersects with the first direction, and the second direction forms an angle of not less than 60 degrees and not more than 90 degrees with the first direction. | 06-26-2014 |
20140293486 | CIRCUIT INTEGRATED SUSPENSION AND METHOD OF MANUFACTURE THEREOF - An Extended Circuit Integrated Suspension (ECIS) includes: a load beam, including a first plurality of traces disposed on a first side of the load beam and a first connection portion; and a flexure circuit which is disposed on an opposite side of the first side of the load beam and connected to the load beam by the first connection portion, and includes a second plurality of traces and a second connection portion to connect to the first plurality of traces on the load beam. | 10-02-2014 |
20160012837 | FLEXURE OF DISK DRIVE SUSPENSION | 01-14-2016 |
20160012838 | FLEXURE OF DISK DRIVE SUSPENSION | 01-14-2016 |
20160012839 | FLEXURE OF DISK DRIVE SUSPENSION | 01-14-2016 |
20160071533 | INTERLEAVE CIRCUIT OF CONDUCTIVE CIRCUIT PORTION OF DISK DRIVE FLEXURE - An interleave circuit includes a metal base, an insulating layer, a first conductor member having first branch conductors, a second conductor member having second branch conductors, and a jumper conductor, which is a part of the metal base. The jumper conductor includes a branch-side metal portion, a pad-side metal portion, and a bridge portion. The bridge portion is formed between the branch-side metal portion and the pad-side metal portion. The branch-side metal portion electrically conducts to connecting terminals of the first branch conductors via branch-side connecting members. The pad-side metal portion electrically conducts to an electrode pad via a pad-side connecting member. The bridge portion includes a crossover portion which crosses over a third conductor member. | 03-10-2016 |
20160254013 | FLEXURE OF DISK DRIVE SUSPENSION | 09-01-2016 |