Thin film magnetic head having polymer on broken flux guide sections, method of producing and integrated structure incorporating same
US5646804A · kind A · utility
5Cited by
12References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 20, 1991 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Dec 20, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3967
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a thin film magnetic head comprising a magnetoresistive sensing element (MRE) located inwardly from the head face, a first section of a broken flux guide extending inwardly from the head face to overlie one peripheral edge portion of the MRE, and a second section overlying an opposite peripheral edge portion of the MRE, the space overlying the MRE between the flux guide sections is filled with a poller such as a photoresist, providing a smooth surface for a test/bias conductor, reducing shorts due to inadequate step coverage, and providing mechanical stress relief, leading to improved stability of the MRE.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.