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US 7,453,666 B2Granted
Magnetic disk drive device and method of manufacturing the same
AssigneeSAE Magnetics (H.K.) Ltd.
InventorSatoshi Yamaguchi
Life of this patent
Estimating the term…
Abstract
A magnetic disk and spindle motor are mounted in a housing member. A support arm is freely rotatably mounted on a cover member. A suspension has a dimple (first mark) indicating the mount position of the magnetic head slider and a through hole (second mark) formed at any different position form the dimple. The cover member has measuring holes, through which the respective marks are observed from the opposite side to the support arm mount surface.
Claims13
Magnetic disk drive device comprising:
- a housing member having an opening on the front surface thereof;
- a cover member for covering the opening portion of the front surface of the housing member;
- a head gimbal assembly containing a magnetic head slider and a suspension for supporting the magnetic head slider;
- a support arm for supporting the head gimbal assembly;
- a magnetic disk provided so as to face the magnetic head slider;
- and
- a motor for rotating the magnetic disk;
- wherein
- the magnetic disk and the motor are mounted in the housing member;
- the support arm is freely rotatably mounted in the housing member;
- the suspension has a first mark indicating the mount position of the magnetic head slider, and a second mark set at any different position from the first mark;
- and
- the cover member has a measuring hole through which the first and the second marks are observed from the opposite side to the support arm mount surface.
10 more elements
A method of manufacturing a magnetic disk drive, comprising:
- a housing member side assembly step of mounting a magnetic disk and a motor to a housing member;
- a cover member side assembly step of mounting on a cover member a support arm to which a head gimbal assembly in which a magnetic head slider is not mounted is secured;
- a slider mount step of mounting the magnetic head slider in the head gimbal assembly mounted on the cover member;
- and
- a sealing step of fabricating the cover member to the housing member so that the cover member covers an opening portion of the front surface of the housing member, wherein the slider mount step contains the following first to fourth steps:
- first, the support arm to which the head gimbal assembly in which the magnetic head slider is not mounted is secured is fixed at any position preset on the cover member;
- secondly, the first and the second marks set in the suspension are measured through the measuring hole from the opposite side to the support arm mount surface on the cover member;
- thirdly, the orientation of the suspension and the mount position of the magnetic head slider on the suspension concerned are recognized on the basis of the measurement result of the first and second marks;
- and
- fourthly, the magnetic head slider is mounted on the suspension on the basis of the mount position of the magnetic head slider on the orientation of the suspension and the mount position of the magnetic head slider on the suspension.
7 more elements
Dependencies are inferred from the claim text.