Apparatus and method for writing servo patterns on a computer hard disk
US6522494B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1999 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Sep 30, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59638
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for writing servo patterns on a hard disk drive disk in a hard disk drive assembly. The assembly includes a disk having at least one magnetic surface in which a reference pattern has been written, determining a reference track. Also included is an actuator having a shaft engaged with the disk to provide rotational motion to the disk, an actuator arm, and a micro-actuated read/write head mounted on the actuator arm. The method includes the following steps. First, the read/write head is used to position the actuator arm at a first fixed position over the reference track. The actuator arm is maintained at the first fixed position while the read/write head is used to write a second servo pattern, determining a second track. The read/write head is used to position the actuator arm at a second fixed position over the second track. Then, the actuator arm is maintained at the second fixed position while the read/write head is used to write a third servo pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.