Apparatus and method for depopulating a disk drive head stack assembly by utilizing an overmolded actuator
US6661615B2 · kind B2 · utility
6Cited by
4References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 2, 2001 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Mar 20, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4813
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A head stack assembly for a hard disk drive has an actuator comb body, a coil yoke, at least one actuator arm, and a prosthesis. The prosthesis is an artificial or replacement arm and is preferably identical in profile and thickness as the actuator arm, except for some or all of the balance holes in the actuator arm. This configuration eliminates the need to provide the prosthesis with a real or dummy head in order to balance the actuator, thereby reducing cost. A common stamping die and a common molding die are used for both the arm and the prosthesis, which further reduces the cost of manufacturing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.