Patent ID: 6937444

Claim:
A rotary actuator assembly for a disk drive comprising: an actuator body having a bore defining a pivot axis; an actuator arm cantilevered from the actuator body; a coil portion cantilevered from the actuator body in a direction opposite from the actuator arm; the coil portion including: a coil support; a flat coil supported by the coil support, the flat coil including a coil surface generally perpendicular to the pivot axis; a constrained layer damper attached to the coil surface and the coil support; the constrained layer damper including: a stiffening layer having a coil-facing planar surface generally perpendicular to the pivot axis; and an adhesive layer positioned between the coil facing planar surface and the coil surface, the adhesive layer abutting the coil surface and the coil support; wherein the constrained layer damper includes an aperture.