Head gimbal assembly and disk device with the same

摘要

According to an embodiment, a head gimbal assembly includes a support plate, a wiring member, a magnetic head and drive members. A gimbal portion of the wiring member includes a thin metallic plate including a tongue portion mounted with a magnetic head, a proximal end portion fixed to the support plate, support projections, and link portions, an insulating layer including first bridge portions extending from the proximal end portion to the tongue portion, and second bridge portions extending from the proximal end portion to middle portions of the first bridges, and a conducive layer including signal wirings extending to the tongue portion through the second and first bridge portions, and reinforcement wiring portions. The drive members are provided at the first bridge portions.

主权项

1. A wiring assembly comprising:
a wiring member comprising a metallic plate, an insulating layer on the metallic plate, and a conductive layer on the insulating layer, wherein the metallic plate comprises a proximal end portion, a tongue portion located apart from the proximal end portion; the insulating layer comprises a distal end portion on the tongue portion, a pair of first bridge portions extending from the proximal end portion to the distal end portion along both sides of the tongue portion, and a pair of second bridge portions extending from the proximal end portion to middle portions of the first bridge portions to join the first bridge portions; and the conductive layer comprises a plurality of wirings being through the first bridge portions and the second bridge portions; and a drive member fixed to each of the first bridge portions in a position between the proximal end portion and the middle portion, connected to at least one of the wirings, and configured to expand and contract between the proximal end portion and the middle portion.