Head/suspension design having fewer signal wires and making the same
US5768068A · kind A · utility
Inventors
Key dates
| Filing date | Oct 8, 1996 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Oct 8, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0018
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for reducing the number of wires needed between the read/write elements and the AE module. An inductive coil and a magneto-resistive element are formed on a substrate such that each includes an input signal lead and a ground return lead terminal. The ground return lead terminal of the inductive coil and the magneto-resistive element share a common ground return lead. The common ground return lead may be formed using a distinct wiring construct or by using a conductive substrate. A conductive suspension may also be formed wherein the conductive substrate is coupled to the conductive suspension. The input signal lead of the inductive coil and the magneto-resistive element may also share a common connector pad for providing signal coupling. A current flow element may be used to control the flow of current through the inductive coil and the magneto-resistive element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.