Electrical interconnect from disk drive suspension flexure to PZT motor
US8810972B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2013 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Dec 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4873
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electrical interconnect from a suspension electrical circuit to a PZT microactuator motor includes copper plated onto a first side of a stainless steel support layer and gold plated onto a second and opposite side of the stainless steel support layer, with the gold plated stainless steel surface bonded to the PZT motor surface by conductive epoxy. The stainless steel may have a via etched into it to the copper surface before the gold plating step which then plates both the stainless steel and the copper with gold, so that the conductive epoxy is in physical and electrical contact with both the gold plated stainless steel and thus in electrical contact with the copper, and also in direct physical and electrical contact with the gold plated copper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.