MAMR head with inclined MAMR head body
US9129621B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2015 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Feb 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0024
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microwave-assisted recording head comprises a main pole configured to emit a recording magnetic field for affecting a magnetic medium, the main pole serving as a first electrode and having a front portion at an air bearing surface (ABS) and a rear portion extending from the front portion. A microwave oscillator is positioned on a trailing side surface of the main pole. The trailing-side surface of the main pole forms a flat plane along the front and rear portions and is inclined with respect to a leading side surface at the front portion. The head body is inclined at an acute angle to the ABS, such that an acute angle, between 10 and 30 degrees, is formed between the trailing side surface of the main pole and the ABS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.