Western Digital Technologies, Inc.

Seungman Chang

Lidu Huang

John Edward Scura

Chen-Chi Lin

Aaron D Little

Sudha Narayanan

Lido Huang

A disk drive has a novel head stack assembly that includes a flex cable having a width, an actuator body, and a clip. A top portion of the clip includes a first top slot and a second top slot, forming a non-zero acute angle. The bottom portion of the clip includes a first bottom slot that is substantially aligned to face and oppose the first top slot, and a second bottom slot that is substantially aligned to face and oppose the second top slot. A first maximum distance between the first top slot and the first bottom slot equals or exceeds the width. A second maximum distance between the second top slot and the second bottom slot equals or exceeds the width. The slots retain the flex cable. The top portion and the bottom portion are a single monolithic piece.

Disk drive head stack assembly with clip for mounting a flex cable

A method and system or mounting a flex cable within a head stack assembly is disclosed. The flex cable has a width. The method and system include providing a top portion and a bottom portion coupled to the top portion. The top portion includes a first top slot and a second top slot therein. The first top slot and the second top slot form a non-zero acute angle. The bottom portion includes a first bottom slot and a second bottom slot therein. The first bottom slot is substantially aligned with the first top slot. The second bottom slot is substantially aligned with the second top slot. A maximum first distance between the first top slot and the first bottom slot equals or exceeds the width. A second maximum distance between the second top slot and the second bottom slot equals or exceeds the width.

Clip for mounting a flex cable within a head stack assembly

A disk drive includes a rotary actuator including a pivot bearing cartridge. The pivot bearing cartridge has a pivot shaft with a shaft body and a shaft threaded end. A disk drive base includes inner and outer sides. The disk drive base includes an actuator support section that has a seal portion including a seal attachment surface disposed along the outer side. The actuator support section includes a raised portion extending from the seal portion towards the inner side. The actuator support section includes a hole portion positioned laterally within the raised portion and extending through the raised portion towards the outer side. The hole portion is engaged with the shaft threaded end. The hole portion includes a distal end that does not extend beyond the seal attachment surface. A seal is disposed upon the attachment surface for sealing the pivot shaft within the disk drive base.

Disk drive including an actuator with a pivot shaft and a disk drive base with an actuator support section for attachment of the pivot shaft and a seal

A disk drive includes a disk and a head stack assembly for reading and writing to the disk. The head stack assembly includes a body portion defining a through bore that defines a pivot axis; an actuator arm cantilevered from the body portion and a head gimbal assembly coupled to the actuator arm. A coil portion is cantilevered from the body portion in an opposite direction from the actuator arm. The coil portion defines first and second actuator fork members and includes a coil supported by the first and second actuator fork members. A bobbin is configured to stiffen the coil portion, and is attached to an inner periphery of the coil. The bobbin may define a first truss and a second truss that crosses the first truss. An adhesive is disposed between the bobbin and the wound coil.

Head stack and actuator arm assemblies including a bobbin to stiffen the coil portion of an actuator of a hard disk drive and disk drives including the same

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San Jose, CA, United States of America

Seungman Chang