| 摘要 |
<p>A hard disk drive 10 includes a disk 15 for storing data, a read/write head 18 for recording data on or reproducing data from the disk 15, an actuator 17 for moving the read write head across the disk 15, a printed circuit board, motors for rotating the disk 15 and pivoting the actuator 17, a magnetic field shielding material 19, and a cover 20. The disk 15 is mounted on a spin shaft 12 formed on the PCB 11. The read/write head 18 is attached to one end of the actuator 17, the other end of which is pivotally mounted on a shaft 13 formed on the PCB 11. The printed circuit board 11, which forms the base of the hard disk, is a multi-layer type PCB. The motor for rotating the disk 15 comprises a permanent magnet 15a attached to the disk 15 and multi-layer pattern coil 14a formed on the PCB 11 around the shaft 12. Similarly, the actuator motor comprises a permanent magnet 17a fixed to the actuator 17 and a multi-layer pattern coil 14b printed on the PCB 11 around the shaft 13. This makes for a slimmer device.</p> |
