Near field transducer having notch diffusion barrier
US9099112B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2014 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Jan 31, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus according to one embodiment includes a near field transducer comprising a conductive metal film having a main body, a notch extending from the main body, and a notch diffusion barrier layer interposed between the notch and the main body. An apparatus according to another embodiment includes a write pole, and a near field transducer adjacent the write pole. The near field transducer includes a conductive metal film having a main body, a notch extending from the main body, and a notch diffusion barrier layer interposed between the notch and the main body. The notch diffusion barrier layer includes a metal selected from a group consisting of Rh, W, Mo, Ru, Ir, Co, Ni, Pt, B, and alloys thereof. Additional systems and methods are also presented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.