Disc drive actuation system having an injection molded magnetic micro-actuator with metal beam inserts and its method of fabrication
US6198606A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2000 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Mar 30, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/483
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of fabricating a disc drive actuation system having a head level magnetic micro-actuation assembly utilizing flexible beam inserts and the disc drive actuation system thereby produced are provided. The method comprises the steps of: (a) forming a mold with a first cavity for a micro-actuator body and a second cavity for a slider body; (b) placing a plurality of magnets in a magnet keeper; (c) placing the magnet keeper in the second cavity of the mold; (d) etching a flexible beam insert from a flexible material such as sheet stainless steel; (e) placing the flexible beam insert into the mold, (f) filling the mold with a fluid; (g) solidifying the fluid to form the micro-actuator body and the slider body; (h) removing the micro-actuator body and slider body from the mold; and (i) inserting a slider into the slider body, thereby forming the magnetic micro-actuator assembly; and (j) installing the magnetic micro-actuator assembly into a disc drive assembly, and thereby producing the disc drive actuation system having a head level magnetic micro-actuator assembly utilizing flexible beam inserts. This fabrication process involves a single injection-molding step, a tremendous cos…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.