Write head with reduced side to trailing shield spacing
US10699733B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2018 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Oct 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3163
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A write head including a bearing surface and a write pole having a front surface that forms a portion of the bearing surface. The front surface has a leading edge, a trailing edge and side edges connecting the leading and trailing edges. The write head also includes side shields proximate to the side edges of the write pole, and a trailing shield over the write pole and the side shields. A trailing shield-write pole gap is present between the trailing edge and the trailing shield, and a trailing shield-side shield gap is present between the trailing shield and the side shields. The trailing shield-shield shield gap is substantially less than the trailing shield-write pole gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.