Method for assembling an actuator device for a hard disk, comprising a read/write transducer, a microactuator, and a suspension, and the actuator device thus obtained
US6501623B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1999 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Jul 20, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microactuator is attached to a first face of a coupling formed on a suspension, so that an R/W transducer projects from an opposite face. A hole in the coupling permits passage of an adhesive mass interposed between a rotor of the microactuator and the R/W transducer. A strip of adhesive material extends between a die accommodating the microactuator and the coupling, and externally surrounds the microactuator. The coupling acts as a protective shield for the microactuator, both mechanically and electrically. The coupling covers the microactuator at the front, and prevents foreign particles from blocking the microactuator. In addition, the coupling electrically insulates the R/W transducer, which is sensitive to magnetic fields, from regions of the microactuator biased to a high voltage. With the coupling, the strip forms a sealing structure, which in practice surrounds the microactuator on all sides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.