Thin-film magnetic head, method of manufacturing the same, head gimbal assembly, and hard disk drive
US8310787B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 27, 2011 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Sep 27, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3163
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thin-film magnetic head is constructed such that a main magnetic pole layer, a write shield layer, a gap layer, and a thin-film coil are laminated on a substrate. The thin-film magnetic head has a shield magnetic layer. The shield magnetic layer is connected to the main magnetic pole layer. The shield magnetic layer has a lower front shield part. A front end angle representing an angle formed between a front end face of the lower front shield part and a lower end face is set at an obtuse angle. The front end face is disposed in the medium-opposing surface. The lower end face is disposed at a position closest to the substrate in the lower front shield part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.