Method of making a thin film insulator
US4512862A · kind A · utility
8Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 8, 1983 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | Aug 8, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/344
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In magnetic heads it is often necessary to place conductive films on a ferrite substrate. If the ferrite is conductive, an insulative film is required between the ferrite substrate and the conductive film. A thin insulative film can be formed on a surface of the ferrite substrate by alternately dipping the substrate in solutions containing particles of silica and alumina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.