Shield designed for middle shields in a multiple sensor array
US8908333B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2013 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Oct 3, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4976
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system provide a magnetic transducer having an air-bearing surface (ABS) and including first and second read sensors and a shield. The shield is in a down track direction from the first read sensor and between the first and second read sensors. The shield includes a first shield layer, a second shield layer and an insulating layer between the first and second shield layers. The first shield layer is between the first read sensor and the second shield layer. The second shield layer is between the first shield layer and the second read sensor. The first shield layer has a first footprint. The second shield layer has a second footprint. The second shield layer overlaps the first shield layer in the down track direction. The overlap is not more than fifty percent of the first footprint and not more than fifty percent of the second footprint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.