71results about "Electrical connection between arm and support" patented technology

A head gimbal assembly (HGA) for a hard disk drive includes a carriage arm having a swaging hole, first and second suspensions, and respective first and second swage plates to which the first and second suspensions are respectively coupled. Each swage plate includes a respective series of intermittent swage boss structures extending from a baseplate, where the swage boss structures of each swage plate are relatively positioned, extending from a respective side of the arm into the swaging hole, such each of the one series of swage boss structures interposes with the other series of swage boss structures. With both series of interposed swage boss structures occupying the same swaging hole height, the height of each swage boss can be effectively doubled and a higher retention torque of the swage coupling is enabled even in view of a thinner arm tip and shorter corresponding swaging hole.

According to one embodiment, a suspension assembly includes a support plate, a head supported by the support plate, and a wiring member provided on the support plate, and constituted by a stacked layer body. The wiring member includes a distal portion electrically connected to the head, a connection end portion extending to an outside of the support plate, and a plurality of wirings. The connection end portion includes an opening extending in a first direction, a plurality of connection terminals each formed by a conductive layer and arranged in the first direction in the opening, and a partition provided at the connection terminal to protrude from the side of the second insulating layer.

A flexible printed circuit (FPC) for a hard disk drive includes a first preamplifier electrically connected to first read-write transducers and a second preamplifier electrically connected to second read-write transducers, where all transducers are driven via a single primary actuator, with a top FPC section including electrical traces between a fine actuator corresponding to one of the first transducers and a corresponding controller and a bottom FPC section including traces between a fine actuator corresponding to one of the second transducers and a corresponding controller. To inhibit potential crosstalk between the fine actuator traces and read traces and / or voice coil motor (VCM) traces, the fine actuator traces may be positioned not-adjacent to read traces, such as between write traces adjacent the read traces and serial input / output (SIO) traces adjacent VCM traces, and / or at least five trace-widths away from the VCM traces.

According to one embodiment, a suspension assembly includes a support plate, a wiring member provided on the support plate and including an elastically deformable gimbal portion including a tongue portion on which a magnetic head is mounted and an outrigger connected to the tongue portion, and a viscoelastic material filled into a gap between the outrigger and the support plate and forming a damper.

Disclosed herein is a magnetic storage device that comprises a suspension arm co-movably fixed to a carriage arm. The suspension arm comprises a slider attachment side and at least one first electrical contact pad on the slider attachment side. The suspension arm also comprises a slider co-movably fixed to the suspension arm. The slider comprises a suspension attachment side, a non-head side facing the suspension arm and intersecting the suspension attachment side at a first slider edge of the slider, a head side facing away from the suspension arm, and at least one electrical contact component on the suspension attachment side up to the first slider edge. At least one solder weldment is directly coupled to the at least one first electrical contact pad and the at least one electrical contact component. Additionally, a read-write head is coupled to the head side of the slider.

A first terminal provided on a tail pad portion includes a base portion, a bent portion and an overlapping portion. The base portion includes a first surface fixed to a base insulating layer and a second surface on an opposite side to the first surface. The bent portion is reversed in a thickness direction of the base portion from an end of the base portion towards the second surface. The overlapping portion extends from the bent portion in a direction along the second surface. An anisotropic conductive film (ACF) is disposed between the overlapping portion and the second terminal. The overlapping portion and the second terminal are connected to each other via the ACF.

An embodiment provides a disk device capable of suppressing noise propagation between wirings. The disk device involved in one embodiment comprises a recording medium, a suspension, a magnetic head, an actuator, a circuit substrate, an FPC, a preamplifier, and an actuator driver. The magnetic head and the actuator are mounted on the suspension. The circuit substrate is provided with a control circuit. The FPC is connected to the suspension and the circuit substrate. The preamplifier is mounted on the FPC, outputs a write signal corresponding to the information that the magnetic head is to write to the recording medium to the magnetic head, and receives a read signal corresponding to the information read from the recording medium by the magnetic head from the magnetic head. The actuator driver is mounted on the FPC in a manner away from the preamplifier, and outputs a drive signal to the actuator to drive the actuator.

A disk device according to one embodiment includes a magnetic disk, a magnetic head, an FPC, and a chip. The FPC includes an insulating layer, a first conductive layer on a first face of the insulating layer, and a second conductive layer on a second face of the insulating layer. The chip is mounted on the FPC. The first conductive layer includes pads. The chip includes terminals connected to the plurality of pads via solder. The second conductive layer includes wires. The plurality of wires include at least either one or two or more first wires or one or two or more pairs of second wires. The first wires each include a first part disposed apart from the pads, and a second part having a larger width than the first part, overlapping one of the pads. The second wires overlap one of the pads.

Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.

The embodiment provides a head suspension assembly and a disk device with improved connection reliability. According to the embodiment, the head suspension assembly includes a support plate, a wiring member (40) arranged on the support plate, a head mounted on the wiring member, and a retractable piezoelectric element (50) mounted on the wiring member. The wiring member includes a metal plate (44a) fixed to the support plate and a stacked member having a first insulating layer (44b), a conductive layer (44c) stacked on the first insulating layer, a second insulating layer (44d) stacked on the conductive layer, and at least a pair of connecting pads (70a, 70b) formed by the conductive layer. The connecting pad is overlapped and arranged on a recessed portion (74a) formed on the first insulating layer to form a recessed portion along the recessed portion, and the covering insulating layer has an opening (72a) opposite to the connecting pad. The piezoelectric element is connected to the connecting pad by a conductive adhesive (Ad) filled in the opening and the recessed portion of the connecting pad.

A head gimbal assembly (HGA) for a hard disk drive includes a carriage arm having a swaged bore, first and second suspensions, and respective first and second swaged plates, the first and second suspensions coupled to the first and second swaged plates, respectively. Each swage plate includes a respective respective series of discontinuous swage boss structures extending from the base plate, where the swage boss structures of each swage plate are oppositely positioned and extend from a respective respective side of the arms into the swage holes, and where the swage boss structures of each swage plate are spaced apart from the respective respective side of the arms. And each swaging boss structure in the series of swaging boss structures is inserted into the other series of swaging boss structures. Due to the fact that the two sets of inserted swaging boss structures have the same swaging hole height, the height of each swaging boss can be effectively doubled, and the holding torque of swaging connection can be higher even in view of thinner arm tops and corresponding shorter swaging holes.

The embodiment of the invention relates to a suspension assembly and a disk device. A suspension assembly according to one embodiment is provided with a wiring member. The tail connection portion of the wiring member has a base layer, a cover layer, and a conductive layer disposed between the base layer and the cover layer. The cover layer is provided with a groove. The conductive layer has a first wiring, a second wiring, and a connection terminal extending across the groove between the first wiring and the second wiring. The base layer has a first base portion covering the first wiring, a second base portion covering the second wiring, and a pair of first protruding portions protruding from the first base portion and partially covering the connection terminals. And a pair of second protruding portions that protrude from the second base portion, partially cover the connection terminals, and are separated from the pair of first protruding portions.

To provide a suspension for disk device capable of achieving excellent flexure rigidity while suppressing vibration of a flexure effectively.SOLUTION: A suspension 10 for a disk device includes a load beam 21, a flexure 22 that is superimposed on the load beam and has a tongue 45 on which a slider 11 is mounted and an outrigger 51 connected to the tongue 45, and a first damper material 80 pasted on the load beam 21 and the outrigger 51. The first damper material 80 has a single layer of viscoelastic body.SELECTED DRAWING: Figure 4

A flexible printed circuit (FPC) for a hard disk drive includes a first preamplifier electrically connected to first read-write transducers and a second preamplifier electrically connected to second read-write transducers, where all transducers are driven via a single primary actuator, with a top FPC section including electrical traces between a fine actuator corresponding to one of the first transducers and a corresponding controller and a bottom FPC section including traces between a fine actuator corresponding to one of the second transducers and a corresponding controller. To inhibit potential crosstalk between the fine actuator traces and read traces and / or voice coil motor (VCM) traces, the fine actuator traces may be positioned not-adjacent to read traces, such as between write traces adjacent the read traces and serial input / output (SIO) traces adjacent VCM traces, and / or at least five trace-widths away from the VCM traces.

To provide a suspension assembly which can improve narrow pitching of wiring and bondability of a connection terminal while strength of the connection terminal is maintained, and to provide a disk device including the suspension assembly.SOLUTION: A suspension assembly includes: a support plate; a head supported by the support plate; and a wiring member installed in the support plate. The wiring member includes: a tip part which is electrically connected to the head; a connection end part extended to an outer side of the support plate; and a plurality of wirings extending between the tip part and the connection end part. The connection tip part includes: a cover layer with an opening; 13 or more connection terminals which face the opening, are arranged in a row in a length direction of the opening by leaving intervals and are connected to the wirings; and a base layer which is provided by being overlapped on the cover layer and the connection terminals and includes a plurality of first openings facing a part of the connection terminals and a plurality of second openings facing a space part between the adjacent connection terminals.SELECTED DRAWING: Figure 7

To provide: a suspension assembly capable of stably joining a magnetic head to a wiring member; and a disk device having the same.SOLUTION: According to an embodiment, a suspension assembly includes: a support plate; a wiring member which includes an elastically deformable gimbal portion that has a tongue portion, on which a magnetic head is mounted, and an outrigger connected to the tongue portion, and which is provided on the support plate; and a viscoelastic material filled in the gap between the outrigger and the support plate to form a damper.SELECTED DRAWING: Figure 7

According to one embodiment, a head suspension assembly includes a support plate, a wiring member on the support plate, and a magnetic head mounted on the wiring member. The magnetic head includes a slider, a head element, connection pads, and a laser oscillation element on the slider. The wiring member includes a plurality of first connection terminals each having a bonding surface bonded to a connection pad of the slider and a second connection terminal including a bonding surface bonded to a connection pad of the laser oscillation element and a non-bonding surface opposite to the bonding surface. The wiring member includes a cover layer covering at least a part of the non-bonding surface of the second connection terminal.

According to one embodiment, there is generally provided a disk device capable of suppressing variation of a gap between a recording medium and a head and improving reliability. According to one embodiment, a disk device includes: a disk-shaped recording medium; a magnetic head having a write head, a read head, and a heater for adjusting a gap with the recording medium; a suspension assembly supporting the magnetic head; the micro actuator comprises a piezoelectric element arranged on the suspension assembly; and a controller that sets the driving voltage of the piezoelectric element on the basis of the difference between the landing output when the piezoelectric element is driven and the landing output when the piezoelectric element is not driven.

Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.

To provide a magnetic storage device in which a contact between a suspension arm and a slider for a read / write head assembly is improved.SOLUTION: In a hard disk drive, a suspension arm 140 includes a slider attachment side, at least one first electrical contact pad 144 on the slider attachment side, and a slider 142 co-movably fixed to the suspension arm. The slider includes: a suspension attachment side 162; a non-head side 156 facing the suspension arm and intersecting the suspension attachment side at a first slider edge 160 of the slider; a head side 158 facing away from the suspension arm; and at least one electrical contact component on the suspension attachment side up to the first slider edge. At least one weld portion is directly connected to the at least one first electrical contact pad and the at least one electrical contact component.SELECTED DRAWING: Figure 4B

According to one embodiment, a suspension assembly includes a wiring member. The tail connector of the wiring member includes a base layer, a cover layer, and a conductive layer interposed between the base layer and the cover layer. The cover layer includes a groove. The conductive layer includes a first wire, a second wire, and a connection terminal extending between the first wire and the second wire across the groove. The base layer includes a first base covering the first wire, a second base covering the second wire first protrusion pair protruding from the first base to partially cover the connection terminal, and second protrusion pair protruding from the second base to partially cover the connection terminal.

An embodiment of the present invention provides a disk device capable of suppressing peeling of a flexible printed circuit board. A disk device of one embodiment has a magnetic disk, a magnetic head, a first flexible printed circuit board, and a second flexible printed circuit board. The first flexible printed circuit board has a plurality of first terminals. The second flexible printed circuit board has a surface, a plurality of second terminals provided on the surface and joined to the plurality of first terminals by a joining body, and a first planar ground layer covering at least one of the plurality of second terminals in a direction orthogonal to the surface. The plurality of second terminals include a first read terminal. The first planar ground layer is separated from at least a portion of the first read terminal in a direction along the surface.

To provide a head gimbal assembly (HGA) for hard disk drives.SOLUTION: A HGA includes a carriage arm 132 with a swage processing hole, two lead suspensions 110C, and two swage plates 200 to which the two suspensions are respectively coupled. Each swage plate includes a respective series of intermittent swage bosses 206 extending from a base plate, the swage bosses of each swage plate are respectively positioned relative to each other by extending to the swage processing hole 132a from each side of the carriage arm, and each of the one series of swage bosses interposes with the other series of swage bosses. By having both series of interposed swage bosses occupy the same swage hole height, the height of each swage boss can be effectively doubled, and a higher retention torque of the swage coupling is enabled even if it is considered in a thinner arm tip and shorter corresponding swage holes.SELECTED DRAWING: Figure 2B

According to one embodiment, a suspension assembly capable of improving positioning accuracy of a magnetic head and a disk device provided with the suspension assembly are provided. According to one embodiment, a suspension assembly is provided with: a support plate; a wiring member provided on the support plate and having an elastically deformable universal joint portion having a tongue portion on which a magnetic head is mounted and an overhang bracket connected to the tongue portion; and the viscoelastic material is filled in a gap between the overhanging bracket and the supporting plate to form a damping piece.

A disk device according to an embodiment includes an electronic component, a first adhesive, a plate, and a first bonding layer. The flexible printed circuit board has a first surface facing the electronic component, a second surface located opposite to the first surface, and a pad provided on the first surface and connected to the electronic component by a conductive adhesive. The first adhesive is provided on the second surface. The plate has a third surface facing the second surface. The first bonding layer is provided on the third surface, enters a recess of the third surface, and is fixed to the second surface by the first adhesive.

To provide a disk device capable of suppressing fluctuations in a gap between a recording medium and a head and improving reliability.SOLUTION: According to an embodiment, a disk device includes: a disk-shaped recording medium; a magnetic head having a heater that adjusts a gap between a write head, a read head, and the recording medium; a suspension assembly that supports the magnetic head; a microactuator including a piezoelectric element provided in the suspension assembly; and a controller that sets a driving voltage of the piezoelectric element according to the difference between the piezoelectric element and a touchdown output at driving, and the piezoelectric element and a touchdown output at non-driving.SELECTED DRAWING: Figure 6

The invention provides a suspension assembly capable of preventing poor joint in a joint part and short circuit between terminals, and a disc device provided with the suspension assembly. A suspension assembly according to an embodiment includes: a support plate; a head supported by the support plate; and a wiring member provided on the support plate, the wiring member comprising a laminate including a first insulating layer, a conductive layer, and a second insulating layer. The wiring member includes: a front end portion electrically connected to the head; the connecting end part extends towards the outer side of the supporting plate; and a plurality of wires extending between the front end portion and the connection end portion. The connection end portion includes: an opening extending in the first direction; a plurality of connection terminals each formed of a conductive layer and arranged side by side in the first direction at the opening; and a partition wall provided on the connection terminal and protruding from the second insulating layer side.

A hard disk drive flexure assembly includes an insulative base layer over a metal substrate, a first conductive layer over the base layer, a plurality of electrical pads each comprising a second conductive layer over the first conductive layer, a pre-formed bump of solder material positioned over each pad, and a conductive cover layer over at least a portion of each pre-solder bump. With the conductive cover layer, e.g., gold, solder material from each pre-solder bump is inhibited from transferring to a probe during electrical check of the flexure, the solder material is inhibited from oxidizing, and solder splash is inhibited. These techniques are especially relevant with narrow, high-density, small pitch electrical pads.