83results about "Electrical connection between head and arm" 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.

According to one embodiment, a disk device includes a magnetic disk, a magnetic head, a flexure, a piezoelectric element, a first bonding material, a second bonding material, and a protrusion. The flexure includes a first outer surface, a first pad, and a second pad. The first pad and the second pad are on the first outer surface. The piezoelectric element includes a second outer surface, a first electrode, and a second outer surface. The first electrode and the second electrode are on the second outer surface. The first bonding material, which is conductive, bonds the first pad and the first electrode. The second bonding material, which is conductive, bonds the second pad and the second electrode. The protrusion is provided on the flexure, is located at least partially between the first bonding material and the second bonding material, and protrudes from the first outer surface.

A flexure includes a body portion including a first metal base, a terminal portion electrically connected to an actuator, and a connection portion connecting the body portion with the terminal portion and not including the first metal base. The wiring portion includes a base insulating layer, a conductor layer provided on the base insulating layer, and a cover insulating layer covering the conductor layer. The cover insulating layer includes a first cover portion provided on the connection portion, and the base insulating layer includes a first base portion provided on the connection portion and having a thickness smaller than a thickness of the first cover portion.

According to one embodiment, a disk device includes a magnetic disk, a magnetic head, a flexure, a piezoelectric element, a first bonding material, a second bonding material, and a protrusion. The flexure includes a first outer surface, a first pad, and a second pad. The first pad and the second pad are on the first outer surface. The piezoelectric element includes a second outer surface, a first electrode, and a second outer surface. The first electrode and the second electrode are on the second outer surface. The first bonding material, which is conductive, bonds the first pad and the first electrode. The second bonding material, which is conductive, bonds the second pad and the second electrode. The protrusion is provided on the flexure, is located at least partially between the first bonding material and the second bonding material, and protrudes from the first outer surface.

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.

Embodiments of the present invention relate to a disk device and an electronic device. The disk device includes a housing, a disk-shaped recording medium, a magnetic head, an internal wireless communication device, and internal components. The housing has a storage space provided therein. The recording medium is stored in the storage space and has a recording layer. The magnetic head is stored in the storage space and is configured to read and write information with respect to the recording medium. The internal wireless communication device performs at least one of the following operations: generating an electrical signal of information written by the magnetic head to the recording medium corresponding to light, a magnetic field, or an electric field generated by an external wireless communication device; and generating light, a magnetic field, or an electric field corresponding to the electrical signal of information read by the magnetic head from the recording medium toward the external wireless communication device. The internal components are stored in the storage space, are electrically connected to the magnetic head, and communicate with external components outside the housing through the internal wireless communication device and the external wireless communication device.

According to one embodiment, a disk device includes a magnetic disk, a magnetic head, a flexure, a piezoelectric element, a first bonding material, a second bonding material, and a protrusion. The flexure includes a first outer surface, a first pad, and a second pad. The first pad and the second pad are on the first outer surface. The piezoelectric element includes a second outer surface, a first electrode, and a second outer surface. The first electrode and the second electrode are on the second outer surface. The first bonding material, which is conductive, bonds the first pad and the first electrode. The second bonding material, which is conductive, bonds the second pad and the second electrode. The protrusion is provided on the flexure, is located at least partially between the first bonding material and the second bonding material, and protrudes from the first outer surface.

To provide a suspension capable of suppressing interference between a disk and a slider.SOLUTION: The suspension 10 is provided with a load beam 20 having a dimple part 50 and a flexure 21 having a slider mounting part 30. The convex surface 51 of the dimple portion 50 contacts the slider mounting portion 30. The curvature radius R of the convex surface 51 is less than 0. 10mm, and the gain defined by the following equation is 0.9 or more. Where a is the input amplitude, A is the amplitude, R is the radius of curvature of the convex surface 51, and Fpr is the flexure pitching resistance. k1 is the pitching rigidity of the air bearing, and k2 is the pitching rigidity of the slider mounting portion 30.SELECTED DRAWING: Figure 9

Examples of the present disclosure include a suspension assembly for a magnetic storage device. The suspension assembly includes a load beam and a flexure. The load beam includes a flexure side and a substrate side opposite the flexure side. The load beam also includes a recess formed in the flexure side. The flexure is attached to the flexure side of the load beam at least partially within the recess.

A flexible member (22) of a suspension (1) includes a metal base (40), a circuit portion (41), and a slider arrangement portion (50). The slider arrangement portion (50) includes a hole portion (70) formed in the metal base (40) and a slider support portion (90) provided on the metal base (40). The hole portion (70) is provided at a position on which the slider (51) is provided. The embedded circuit portion (41a) is provided within the hole portion (70). The embedded circuit portion (41a) constitutes a part of the circuit portion (41) in the longitudinal direction. A slider support portion (90) supports the slider (51), and an embedded circuit portion (41a) is provided in the hole portion (70). The embedded circuit portion (41a) has a contact portion (91) in contact with the protruding portion (30a) of the load beam (21).

An embodiment provides a disk device capable of improving durability against thermal stress. The disk device involved in one embodiment includes a recording medium, a first magnetic head, a first wiring member, a flexible printed wiring board, and wiring. The first wiring member is electrically connected to the first magnetic head. The flexible printed wiring board has a surface, a first fixing portion fixed to a first component, and a second fixing portion fixed to a second component, and is electrically connected to the first magnetic head via the first wiring member. The wiring is arranged on the flexible printed wiring board, extends along the surface, and extends between the first fixing portion and the second fixing portion in a direction intersecting at an angle greater than 45° and less than 90° relative to the direction in which an imaginary line extends, and the imaginary line is an imaginary line connecting the first fixing portion and the second fixing portion with the shortest distance along the surface.

Examples of the present disclosure include a suspension assembly for a magnetic storage device. The suspension assembly includes a load beam and a flexure. The load beam includes a flexure side and a base-plate side opposite to the flexure side. The load beam also includes a recess formed in the flexure side. The flexure is attached to the flexure side of the load beam at least partially within the recess.

To provide a suspension for a disk device capable of optimizing a profile of an outrigger part.SOLUTION: A sag bent part 55 bent in a thickness direction of a load beam 12 is formed in a part in a length direction of the load beam 12. The load beam 12 includes a first part 12A and a second part 12B with the sag bent part 55 as a boundary. The load beam 12 and a flexure 13 are fixed to each other by a welding part 41 as a fixing part. A slit part 60 is formed around the fixing part. An outrigger supporting part 70 for supporting outrigger parts 33 and 34 is formed inside the slit part 60.SELECTED DRAWING: Figure 1

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.

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 disk drive suspension includes a slider arrangement portion (50) formed on a flexible member (22) of the suspension (1), a slider (51) being arranged on the slider arrangement portion. The slider arrangement portion (50) includes a hole portion (70). A hole portion (70) is formed on the metal base (40) of the flexible member (22). The hole portion (70) is provided at a position on which the slider (51) is provided. The hole portion (70) opens in the thickness direction of the metal base (40). The conductor portion (80) is embedded in the resin member (71) filling the hole portion (70). The slider support portion (90) is formed on a first surface (71a) of the resin member (71). The abutting portion (91) is formed on the second surface (71b) of the resin member (71). The abutting portion (91) contacts the protruding portion (30a) of the pit portion (30).

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 capable of arranging a slider on a slider arrangement portion in a stable posture.SOLUTION: A flexure 22 of a suspension 1 includes a metal base 40, a circuit portion 41, and a slider arrangement portion 50. The slider arrangement portion 50 has an aperture portion 70 formed in the metal base 40 and a slider support portion 90 provided on the metal base 40. The aperture portion 70 is formed at a position where the slider 51 is arranged. An embedding circuit portion 41a is arranged inside the aperture portion 70. The embedding circuit portion 41a is a part of a length direction of the circuit portion 41. The slider support portion 90 supports the slider 51 in a state where the embedding circuit portion 41a is arranged in the aperture portion 70. The embedding circuit portion 41a has an abutting portion 91 contacting a protrusion portion 30a of a load beam 21.SELECTED DRAWING: Figure 4

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

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.

A flexure of a suspension includes a metal base, a circuit portion, and a slider arrangement portion. The slider arrangement portion includes an aperture portion formed in the metal base and a slider support portion provided on the metal base. The aperture portion is provided at a position on which the slider is provided. An embedding circuit portion is provided inside the aperture portion. The embedding circuit portion constitutes a part of a length direction of the circuit portion. The slider support portion supports the slider with the embedding circuit portion being provided in the aperture portion. The embedding circuit portion has an abutting portion contacting a protrusion portion of a load beam.

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 (10) includes a load beam (20) having a recessed portion (50) and a flexible member (21) including a slider mounting portion (30). The convex surface (51) of the recessed portion (50) is in contact with the slider attachment portion (30). The curvature radius (R) of the convex surface (51) is less than 0.10 mm, and the gain defined by the following formula is 0.9 or more. A is the input amplitude, A is the amplitude, R is the curvature radius of the convex surface (51), and Fpr is the pitching resistance of the bending piece. K1 is the pitching rigidity of the air cushion bearing, and k2 is the pitching rigidity of the sliding block mounting part (30).

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.

The present disclosure provides a disk device capable of suppressing contact between a flexible member and a magnetic disk. A disk device according to an embodiment includes a carriage, a magnetic disk, a base plate, a load beam, a flexible member, and a magnetic head. The carriage rotates around a first rotating shaft. The base plate has a first surface facing the magnetic disk, and is attached to the carriage. The load beam is installed on the base body plate. The flexible member has a plurality of wires and is mounted on the base plate and the load beam. The magnetic head is attached to the flexible member and is electrically connected to at least one of the plurality of wirings. The flexible member has a thin portion that is thinner than another portion of the flexible member. The thin portion has a first portion covering the first surface and extending non-parallel to the plurality of wirings.

A sliding block assembly and a switching valve are provided. The sliding block assembly includes a slider body (1) and an inner shell (2). The slider body (1) is provided with an internal cavity (11), the inner shell (2) is located in the internal cavity (11), an outer flow channel (21) is enclosed between an outer surface of the inner shell (2) and a cavity wall of the internal cavity (11). An inner flow channel (22) is enclosed by an inner surface of the inner shell (2), the inner shell (2) is fixed to the cavity wall of the internal cavity (11) by welding.