Patent ID: 7495866

Claim:
A recording disk drive comprising: an enclosure; a recording disk enclosed in the enclosure; a head actuator designed to change its attitude relative to the recording disk in the enclosure; a fixing member disposed in the enclosure, the fixing member spaced from the head actuator by a predetermined distance; a flexible printed circuit board extending at least from the head actuator to the fixing member and superposed on a surface of the fixing member, the flexible printed circuit board bending between the bead actuator and the fixing member; a viscoelastic layer overlaid on a surface of the flexible printed circuit board; and a holding member separate from said fixing member, the flexible printed circuit board and the viscoelastic layer extending between the fixing member and the holding member, the holding member holding the viscoelestic layer and the flexible printed circuit board against the fixing member, wherein the viscoelastic layer is overlaid on the holding member over a predetermined length in a longitude direction of the flexible printed circuit board the predetermined length being shorter than a length over which the flexible printed circuit board is overlaid on the fixing member.