Force sensing slider
US6269687A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1998 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | May 5, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disc drive test slider apparatus for measuring contact force with a surface of a rotating disc media includes a slider body positioned proximate the surface of the rotating disc. The slider body includes an air-bearing surface substantially parallel to the surface of the disc and separated from the surface of the disc by a glide height. A cavity is formed in the slider body having a side wall substantially normal to the surface of the disc and a wall substantially parallel to the surface of the disc. A beam flexure is attached to the side wall of the cavity. A plate is attached to the beam flexure in the cavity, the beam flexure having a spring resiliency to permit movement of the plate in the cavity substantially normal to the surface of the disc. A contact rod is attached to the plate, and extends through the cavity and a via in the slider body. The contact rod has a distal tip projecting from the air-bearing surface. A force applied to the contact rod perpendicular to the surface of the rotating disc media causes displacement of the plate normal to the surface of the disc. Metal films may be formed on the plate and on the wall substantially parallel to the surface of the disc,…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.