Energy-assisted magnetic recording device having laser driving signal and magnetic write signal sharing same electrical conductor

摘要

A disk drive includes a write head that includes a slider, a write transducer disposed on the slider, and a laser device affixed to the slider. The write transducer is driven by a first electrical signal that is carried on at least one of a plurality of conductive traces of a laminated flexure to which the write head is attached. The laser device is driven by a second electrical signal that is also carried by the same at least one of the plurality of conductive traces. The first signal is characterized by a first frequency, and the second electrical signal is characterized by a second frequency that is different from the first frequency.

主权项

1. A disk drive comprising:
a disk drive base; a disk rotatably attached to the disk drive base; an actuator pivotably attached to the disk drive base, the actuator including an arm; a suspension assembly attached to the arm, the suspension assembly including a laminated flexure having a plurality of conductive traces; a write head attached to the laminated flexure, the write head including
a slider;a write transducer disposed on the slider, the write transducer driven by a first electrical signal that is carried on at least one of the plurality of conductive traces, the first signal being characterized by a first frequency; anda laser device affixed to the slider, the laser device driven by a second electrical signal that is also carried by the same at least one of the plurality of conductive traces, the second electrical signal being characterized by a second frequency that is different from the first frequency.