Shingle magnetic writer having nonconformal shields
US9595273B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2015 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Sep 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6082
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A shingle magnetic write apparatus is described. The shingle magnetic write apparatus includes a pole, a side gap, a write gap, a top shield and side shield(s). The pole has a pole tip region including a top wider than a bottom, and sides. The sides are at a sidewall angle from a down track direction. The write gap is adjacent to the pole top and between the top shield and the pole top. The side shield(s) are magnetically connected with the top shield and extend past the bottom of the pole. The side gap is between the side shield(s) and the pole. The side shield(s) have pole-facing surface(s) not more than a side shield angle from the down track direction. The side shield angle is less than the sidewall angle. The side gap width increases from the top near the gap to the bottom near the bottom of the pole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.