Patent ID: 6477017
Filing Date: 2002-11-05
Classification: G11B

Abstract:
A disk drive comprising:a disk which is rotated; a plurality of arm modules, each of which comprises a plurality of plate-shaped arms which lie on top of each other, said plurality of arm modules lining up vertically, and, except the lowest one, having openings through which a laser beam passes, respectively, the sizes of the openings of each pair of adjacent arm modules of said plurality of arm modules being such that the opening of the upper arm module is larger than the opening of the lower arm module, a plurality of head sliders which are supported by the extending end of said arm module and face said disk; said arm modules further comprising suspensions supported by said plurality of plate-shaped arms and supporting said head slider; and an actuator which drives said arm modules, wherein the plurality of arms of each arm module are integrated as a result of extending-end portions thereof being welded together by the laser beam which has passed through the openings of the higher arm modules.