26results about "Electrical connection between head and arm" patented technology

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.

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

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.

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.

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 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.

A suspension of an embodiment includes a first actuator including a piezoelectric element, a second actuator including a piezoelectric element, and a third actuator including a piezoelectric element. A first conductor supplies a first alternating current to the first actuator. A second conductor supplies a second alternating current to the second actuator. A third conductor supplies a third alternating current with a phase opposite to the second alternating current to the third actuator. The first conductor includes a first and a second proximity portions. The first proximity portion extends along the second conductor in the longitudinal direction of the wiring unit. The second proximity portion extends along the third conductor in the longitudinal direction of the wiring unit.

A flexure of a suspension for a disk drive includes a metal base and a wiring portion provided along the metal base and including a base insulation layer, a conductor layer overlaid on the base insulation layer, and a cover insulation layer overlaid on the conductor layer. The flexure includes a first area on which an electronic component is mounted and a second area aligned alongside the first area, and the first area includes a thin-walled portion which overlaps the electronic component and having a thickness less than a thickness of the second area.

The present invention provides a method for reducing the spacing between disks while maintaining separation between the flexure of a suspension assembly and magnetic storage disks, and a method for manufacturing a suspension assembly for a magnetic storage system and a magnetic storage device. [Solution] In the head stack assembly 107, the carriage 103 includes a plurality of carriage arms 105 and at least one head gimbal assembly 109 coupled to their distal ends. Each head gimbal assembly includes a suspension assembly 135 and a slider 142. The suspension assembly includes a load beam 196 and a flexure 140. The load beam includes a flexure side, a base plate side 192 facing the flexure side, and a recess 111 formed within the flexure side. The flexure is attached to the flexure side of the load beam at least partially within the recess.

According to one embodiment, a suspension includes a load beam having a dimple portion and a flexure including a slider-mounted portion. A convex surface of the dimple portion is in contact with the slider-mounted portion. A radius of curvature of the convex surface is less than 0.10 mm, and a gain defined in the following equation is 0.9 or more. In the following equation, a is an input amplitude, A is amplitude, R is a radius of curvature of the convex surface, and Fpr is a flexure pitching resistance. k1 is a pitching stiffness of air bearing, and k2 is a pitching stiffness of the slider-mounted portion.Gain=A-RFprk1+k2a

Examples disclosed herein include a suspension assembly for a magnetic storage device. The suspension assembly comprises a load carrier and a bending element. The load carrier comprises a bending side and a base plate side opposite the bending side. The load carrier also has a recess formed in the bending side. The bending element is attached to the bending side of the load carrier, at least partially within the recess.

Provided are a head suspension assembly and a disc device in which the reliability of electrical connection is improved while short-circuiting of an electrode is suppressed. According to an embodiment, the head suspension assembly includes a support plate, a wiring member (40) disposed on the support plate, a head mounted on the wiring member, and a piezoelectric element (50) mounted on the wiring member. The wiring member includes a metal plate (44a) fixed to the support plate, a base insulating layer (44b), a conductive layer (44c) in which a first connection pad, a second connection pad (70b), and a plurality of wirings are formed on the base insulating layer, and a cover insulating layer (44d) laminated on the conductive layer. The base insulating layer has a first recess (HE2) formed in a region opposite to an end portion of the piezoelectric element in the vicinity of the second connection pad, and the cover insulating layer has a recess recessed along the first recess and an opening portion (OPl) provided in the recess. The piezoelectric element is connected to the second connection pad by a conductive adhesive (Ad), and a portion of the conductive adhesive is filled in the recess and the opening portion of the cover insulating layer.

Provided are a suspension assembly capable of maintaining the strength of connection terminals and seeking to narrow the pitch of wiring and improve the jointability of the connection terminals, and a disc device provided with the same. According to an embodiment, the suspension assembly is provided with a support plate, a head supported by the support plate, and a wiring member provided to the support plate. The wiring member has a front end portion electrically connected to the head, a connection end portion extending out to the outside of the support plate, and a plurality of wirings extending between the front end portion and the connection end portion. The connection end portion is provided with a cover layer provided with an opening, 13 or more connection terminals arranged in alignment with the opening leaving a space in the length direction of the opening and connected to the wirings, respectively, and a base layer provided in overlapping relation to the cover layer and the connection terminals and having a plurality of first openings facing a portion of the connection terminals, respectively, and a plurality of second openings facing the space between adjacent connection terminals, respectively.

To provide a suspension for a disk drive that can reduce crosstalk in the wiring section. [Solution] The suspension 10A has a first actuator (piezoelectric elements 30R, 30L), a second actuator (piezoelectric element 40R), and a third actuator (piezoelectric element 40L). The first conductor 33 supplies a first alternating current to the first actuator. The second conductor 41 supplies a second alternating current to the second actuator. The third conductor 42 supplies a third alternating current to the third actuator that is in the opposite phase to the second alternating current. The first conductor 33 has a first proximity portion 45 and a second proximity portion 46. The first proximity portion 45 extends along the second conductor 41 in the longitudinal direction of the wiring portion 21. The second proximity portion 46 extends along the third conductor 42 in the longitudinal direction of the wiring portion 21.

To provide a suspension assembly that improves connection reliability of connection terminals.SOLUTION: In a hard disk drive, a head gimbal assembly, which is a suspension assembly, includes a wiring member 56. A tail connection portion 66 of the wiring member has a base layer 91, a cover layer 92, and a conductive layer 93 arranged between the base layer and the cover layer. A cover groove 105 is provided on the cover layer. The conductive layer 93 has first wiring 111, second wiring 112, and a connection terminal 67 extending between the first wiring and the second wiring across the cover groove. A base has a first base 121 covering the first wiring 1, a second base 122 covering the second wiring 112, a pair of first protrusions 127 protruding from the first base 121 and partially covering the connection terminal 67, and a pair of second protrusions 128 protruding from the second base 122, partially covering the connection terminal 67, and spaced apart from the pair of first protrusions 127.SELECTED DRAWING: Figure 5

A disk apparatus includes a carriage, a magnetic disk, a base plate, a load beam, a flexure, and a magnetic head. The carriage rotates around a first rotation axis. The base plate includes a first surface facing the magnetic disk and is attached to the carriage. The load beam is attached to the base plate. The flexure includes a plurality of wirings and is attached to the base plate and the load beam. The magnetic head is attached to the flexure and electrically connected to at least one of the plurality of wirings. The flexure includes a thin portion that is thinner than other portions of the flexure. The thin portion includes a first portion which covers the first surface and at which the plurality of wirings extends in non-parallel directions with respect to each other.

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 suspension (10A) according to an embodiment includes a first actuator (AC1) including piezoelectric elements (30R, 30L), a second actuator (AC2) including a piezoelectric element (40R), and a third actuator (AC3) including a piezoelectric element (40L). A first conductor (33) supplies a first alternating current to the first actuator (AC1). A second conductor (41) supplies a second alternating current to the second actuator (AC2). A third conductor (42) supplies a third alternating current having a phase opposite to that of the second alternating current to the third actuator (AC3). The first conductor (33) includes a first adjacent portion (45) and a second adjacent portion (46). The first adjacent portion (45) extends longitudinally along the second conductor (41) with the wiring unit (21). The second adjacent portion (46) extends longitudinally along the third conductor (42) with the wiring unit (21).

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.

To provide a flexure of a suspension for a disk device and a suspension for a disk device that can be made thinner.SOLUTION: A flexure of a suspension for a disk device according to one embodiment includes a metal base and a wiring section that is provided along the metal base and has a base insulating layer, a conductor layer overlaid on the base insulating layer, and a cover insulating layer overlaid on the conductor layer. The flexure has a first region on which an electronic component is mounted and a second region that is arranged with the first region, and the first region includes a thin portion that overlaps the electronic component and has a thickness smaller than that of the second region.SELECTED DRAWING: Figure 5

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.