Sae Magnetics (h.k.) Limited

Guohong Lu

Yiusing Ho

Canhua Chen

An arm coil assembly includes a drive arm having at least two grounding pins formed on a mounting region thereof and a voice coil fixed on the tailing end of the drive arm for controlling the drive arm. The grounding pins are provided for electrically connecting with a flexible printed cable assembly by extending through at least two mounting holes formed on the flexible printed cable assembly. Each grounding pin has a slot formed thereon to clamp the flexible printed cable assembly. The arm coil assembly of the present invention having grounding pins with slot structure to clamp the flexible printed cable assembly which is mounted on the drive arm to form an arm flexible cable assembly, thus, the flexible printed cable assembly can be pre-mounted onto the arm coil assembly without using any additional fixtures or tools, therefore simplifying the mounting process and reducing the manufacturing cost thereof. The invention also discloses an arm flexible cable assembly and a disk drive unit including the same.

Arm coil assembly, arm flexible cable assembly and disk drive unit with the same

An HSA comprises at least an HGA, a controlling circuit for controlling the HGA, and an actuator coil assembly comprising at least one top surface for mounting the HGA and a side surface for mounting the controlling circuit. The HGA has a first connection region parallel to the top surface, the first connection region has multiple first terminal pads formed thereon; the controlling circuit has a second connection region with multiple second terminal pads formed thereon, the second terminal pads are arranged in at least one row which is parallel to the top surface and the side surface, the first terminal pads are bonding to the corresponding second terminal pads to implement an electrical connection. The HSA has a compact structure as so to save space, and the connection way of the HGA and the controlling circuit is simple and solid.

Head stack assembly and hard disk drive with the same

Certain example embodiments relate to a manufacturing method for a disk drive unit. At least one head gimbal assembly having first terminal pads is provided. A controlling circuit for controlling the at least one head gimbal assembly is provided, with the controlling circuit having second terminal pads to connect with the first terminal pads. The at least one head gimbal assembly is disposed in a motor base. The controlling circuit is disposed in the motor base. The at least one head gimbal assembly and the controlling circuit are tightened to the motor base such that the first and second terminal pads are face-to-face and have an electrical touch contact therebetween.

Manufacturing method of a disk drive unit

Connecting a head gimbal assembly with a controlling circuit, including the steps of facing connecting terminals of the head gimbal assembly and the connecting terminal of the controlling circuit to contact with each other and fastening the head gimbal assembly with the controlling circuit to maintain a touch connection of the terminals thereof.

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Dongguan, China

Guohong Lu