US 7,453,046 B2 · Recording disk drive capable of suppressing vibration of flexible printed circuit board

Abstract

A fixing member is spaced from a head actuator by a predetermined distance. A flexible printed circuit board extends at least from the head actuator to the fixing member. The flexible printed circuit board is superposed on the surface of the fixing member. A viscoelastic layer and a protecting layer are overlaid on the surface of the flexible printed circuit board. A clip clips all the fixing member, the flexible printed circuit board, the viscoelastic layer and the protecting layer together. When a head slider is positioned, the head actuator changes its attitude relative to a recording disk. The inertial force based on the rotation causes the first flexible printed circuit board to vibrate when the actuator block stops rotating. The viscoelastic layer serves to absorb this residual vibration of the first flexible printed circuit board. Vibration of the flexible printed circuit board can be suppressed.

Claims2

Dependent claims

A flexible printed circuit board comprising:

an insulating thin film;
an electrically-conductive film piece located on a surface of the insulating thin film;
an insulating layer overlaid on the surface of the insulating thin film and designed to partly cover over a contour of the electrically-conductive film piece;
an aperture formed in the insulating layer, the aperture exposing the contour of the electrically-conductive film piece along a first reference line on the surface of the insulating thin film by extending across the electrically-conductive film piece along a second reference line perpendicular to the first reference line so that the insulating layer covers over the contour of the electrically-conductive film piece along the second reference line;
and
an elongated opening formed at least through the insulating thin film, said elongated opening extending along the second reference line.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

11/698,034Filed 26 Jan 2007 · division

Priority

JP 2004-05435727 Feb 2004

Published

US 2007/0153426 A15 Jul 2007

Granted

18 Nov 2008

Term ends

Not estimatedThe source records don’t support an estimate.

Classification24 codes

G11B 33/121
Disposition of constructional parts in the apparatus, e.g. of power supply, of modules: the apparatus comprising a single recording/reproducing device
G11B 5/4846
Specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives: constructional details of the…
G11B 33/08
Cabinets; Cases; Stands; Disposition of apparatus therein or thereon: insulation or absorption of undesired vibrations or sounds
G11B 33/122
The apparatus comprising a single recording/reproducing device: arrangements for providing electrical connections, e.g. connectors, cables, switches

Recording disk drive capable of suppressing vibration of flexible printed circuit board

Life of this patent

Recording disk drive capable of suppressing vibration of flexible printed circuit board

Life of this patent

Abstract

Claims2