Kabushiki Kaisha Toshiba

Toshiba Electronic Devices & Storage Corporation

Kenichiro Aoki

Takafumi Kikuchi

Yasutaka Sasaki

Masaya Kudo

Hirofumi Nesori

Tomoko Taguchi

Takuma Kido

Toshiyuki Ikai

Toshiyuki Nakada

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.

Head suspension assembly and disk device

According to one embodiment, a disk device includes a magnetic disk, an arm, a base, a flexure, a magnetic head, and damper. The base plate is attached to the arm away from a rotation axis in a first direction. The load beam is attached to the base plate, and has a second surface and a third surface. The flexure is attached to the second surface. The magnetic head is mounted on the flexure. The damper is attached to the third surface, and includes a first constrained layer and a second constrained layer. An end of the second constrained layer is located further away from the rotation axis than an end of the first constrained layer in the first direction, the ends of the first constrained layer and the second constrained layer being in a second direction opposite to the first direction.

Disk device and head gimbal assembly having damper on inclined surface of load beam

According to one embodiment, a suspension assembly includes a support plate, a head supported by the support plate, and a wiring member on the support plate. The wiring member includes a distal-end portion electrically connected to the head, a connection end portion extending outside the support plate. The connection end portion includes a cover layer with an opening having a length, thirteen or more connection terminals opposed to the opening, arranged at intervals in a length direction of the opening and connected to wires, respectively, and a base layer superposed on the cover layer and the connection terminals and having first openings opposed to part of each of the connection terminals and second openings opposed to a space between adjacent connection terminals.

Suspension assembly with wiring member and disk device with the suspension assembly

According to one embodiment, a suspension assembly includes a support plate, a wiring member disposed on the support plate, and a head supported on the support plate through the wiring member. The wiring member includes a distal end portion electrically connected to the head, a connection end portion extending outside the support plate, and a plurality of wirings extending between the distal end portion and the connection end portion. The connection end portion includes an opening with predetermined length and width and thirteen or more connection terminals disposed in the opening and arranged at intervals in a direction of the length. A percentage of an area of the opening occupied by areas of the thirteen or more connection terminals is 40% to 65% inclusive.

Suspension assembly and disk device

According to one embodiment, a head actuator includes a first suspension assembly including a first support plate, a first wiring member with first wiring lines, and a first head, and a second suspension assembly including a second support plate, a second wiring member with second wiring lines, and a second head. The first wiring lines include at least four first read lines and at least four first write lines. The second wiring lines include at least four second read lines and at least four second write lines. At least two of the first read lines and at least two of the first write lines are arranged at a position offset to the second read lines and the second write lines in a width direction of the wiring member.

Head actuator and disk device

According to one embodiment, a suspension assembly includes a support plate, a trace member on the support plate and a drive element mounted on the trace member. The trace member includes a metal plate, and a multilayered member on the metal plate. The multilayered member includes a first insulating layer, a conductive layer stacked on the first insulating layer, a second insulating layer stacked on the conductive layer. The multilayered member includes a mount portion on which the drive element is mounted, and a branching portion arranged along the mount portion with a gap therebetween. At least one portion of the branching portion is formed into a thin portion having a thickness less than other portions of the multilayered member.

Suspension assembly, head suspension assembly and disk device with the same

According to one embodiment, a 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 head slider and connection pads provided at an outflow end of the head slider and electrically connected to the wiring lines. The wiring member includes a head installation region in which the magnetic head is mounted, and an etched region which is at least partly located in the head installation region and is opposed to an end portion of the head slider at the inflow end thereof to form a gap between the end portion and the etched region.

Suspension assembly with etched region and disk drive with the same

According to one embodiment, a suspension assembly includes a support plate having a distal end portion and a base end portion, a wiring member having a gimbal portion and provided on the support plate, and a magnetic head mounted on the gimbal portion. In the gimbal portion, the wiring member includes a head mounting region where the magnetic head is mounted, and an etching region including a recess located and formed at least partially in the head mounting region. The magnetic head is bonded to the head mounting region of the wiring member by an adhesive filled in the head mounting region and the recess.

According to one embodiment, a head suspension assembly includes a support plate having a proximal end and a distal end, a wiring member on the support plate and including a metal plate and a wiring board laid on the metal plate, the metal plate including a first joined portion joined to the support plate close to the distal end and a second joined portion joined to the support plate and located on a proximal end side of the support plate, a head mounted on the wiring member, an extendable piezoelectric element mounted on the wiring member, and a damper including a viscoelastic layer and a constraint layer stacked on the viscoelastic layer and attached to the support plate to cover the first joined portion and the second joined portion.

Head suspension assembly for disk device and including damper

According to one embodiment, a magnetic disk device includes a rotatable disk-shaped recording medium, a head which processes data on the recording medium and a housing including a base accommodating the recording medium and the head and a cover including a welded portion laser-welded to the base. The welded portion includes a first welded portion welded by a first weld width and a second welded portion welded by a second weld width greater than the first weld width.

Magnetic disk device with first and second welded portions

According to one embodiment, a method of manufacturing a lift tab of a suspension assembly, includes: forming a first mask on a first surface of a plate-shaped base material; forming a second mask smaller than the first mask by a width less than or equal to a plate thickness of the base material, on a second surface of the base material, which is on an opposite side to the first surface, to oppose the first mask; etching the base material from both surface sides through the first mask and the second mask, to cut out the base material; and subjecting the cut-out base material to a bending process to form the lift tab.

Growing community of inventors

Machida Tokyo, Japan

Kenichiro Aoki