Thin film magnetic head and method of manufacturing the same
US6665142B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2000 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Sep 17, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49052
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An object of the invention is to provide a thin film magnetic head which can exhibit a high-performance head characteristic without complicating the manufacturing procedure, and a method of manufacturing the same. A coil connection is integrated into one body and constituted part of the thin film coil. A connection middle pattern is provided on the coil connection at the time of forming a pole tip so that the position of the upper surface of the connection middle pattern becomes higher than that of the top pole tip. After the whole portion is covered by an insulating film, the connection middle pattern also can be exposed by polishing the surface of the insulating film until the top pole tip is exposed. Therefore, unlike the case where no connection middle pattern is provided, it is not necessary to have a step of forming an opening by partially removing part of the insulating film. As a result, the number of manufacturing steps can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.