Suspension assembly and disk drive
View Patent ↗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.
1 . A suspension assembly comprising:
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 including a first insulating layer, a conductive layer provided on the first insulating layer to form wirings and a connection terminal, and a second insulating layer formed to overlap with the conductive layer and the first insulating layer, wherein
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 wirings extending between the distal portion and the connection end portion, and
the connection end portion includes an opening extending in a first direction and penetrating the first insulating layer and the second insulating layer, connection terminals formed by the conductive layer and arranged in the first direction in the opening, and a partition provided at the connection terminal in the opening to protrude toward the side of the second insulating layer from the connection terminal beyond the second insulating layer.
2 . The suspension assembly of claim 1 , wherein
the connection terminals include a pair of side edges extending in a second direction intersecting the first direction, and
the partition is provided along one of the side edges of the connection terminal.
3 . The suspension assembly of claim 2 , wherein at the connection terminals, the partition is provided along the side edge of the same side, of the pair of side edges.
4 . The suspension assembly of claim 1 , wherein
the connection terminals include a pair of side edges extending in a second direction intersecting the first direction, and
the connection end portion includes the partition provided along one of the side edges of the connection terminal, and another partition provided along the other side edge of the connection terminal to protrude from a side of the second insulating layer.
5 . The suspension assembly of claim 1 , wherein the partition extends in a second direction intersecting the first direction and has dimensions within a width of the opening in the second direction.
6 . The suspension assembly of claim 1 , wherein the partition includes insulating layers stacked on the connection terminal.
7 . The suspension assembly of claim 1 , wherein the partition is formed integrally with the second insulating layer by an insulator.
8 . A disk drive comprising:
a disk-shaped recording medium; and
a head actuator comprising a rotatable actuator block, arms extending from the actuator block, the suspension assembly of claim 1 fixed to the respective arms, a wiring board provided on an installation surface of the actuator block and including connection pads arranged side by side, and solders provided on the respective connection pads, wherein
the connection end portion of the wiring member is arranged on the wiring board to overlap with the connection pads and the solders, and the connection terminals are joined to the connection pads by the solders.
9 . The disk drive of claim 8 , wherein the wiring board includes a groove extending in the first direction, the connection pads are arranged in the groove, and the partition of the connection end portion is fitted in the groove.