Method and apparatus for loading a magnetic head onto a magnetic disk
US6212045A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | May 14, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/038
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A spinstand head-loading mechanism of a magnetic tester includes a protector bar and a lift arm which control the loading and unloading operations of a magnetic head, as part of a head-gimbal assembly, with respect to a magnetic disk. A series of actuators control the engagement and disengagement of protector bar and lift arm with a head-gimbal assembly that includes read/write elements as part of a slider. The protector bar is driven in a Y-axis direction by an actuator, while the head-gimbal assembly is disposed in an X-axis direction, orthogonally to the Y-axis. The lift arm is also driven in the Y-axis direction by an actuator, but is also driven in a Z-axis direction by a different actuator. Before testing, the head of the head-gimbal assembly is loaded onto a magnetic disk. To accomplish this, the head-gimbal assembly is initially installed on the head-loading mechanism. During this process and when the head-gimbal assembly is outside of the magnetic disk area, the protector bar is used to support a suspension member of the head-gimbal assembly. To prevent damage to the head-gimbal assembly, the protector bar is formed from a plastic material having a low coefficient of frict…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.