Writer core structures having improved thermal dissipation properties
US6989963B2 · kind B2 · utility
9Cited by
19References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2003 |
| Grant date | Jan 24, 2006 |
| Priority date | — |
| Expiry date | Sep 2, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/3996
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data transducer is used for writing data to a disc and has an air bearing surface. The data transducer also includes a bottom pole and a top pole separated from the bottom pole at the air bearing surface by a write gap. A core is formed between the bottom pole and the top pole and a conductive coil is positioned within the core. The data transducer further includes an insulator conformed to turns of the conductive coil and a core fill deposited within the entire core wherein the core fill is a high-thermal conductivity material. The insulator and core fill dissipate thermal energy away from the conductive coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.