Generation of capacitive servo patterns on magnetic storage disks
US4775608A · kind A · utility
8Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1987 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Oct 5, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/84
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A process for generating a capacitive servo pattern on a magnetic storage disk, comprising the steps of: (1) coating the disk with a solution of noble metal compound to form a film of the compound on the disk, (2) exposing said film to radiation through a mask to generate an image on the film, and (3) plating the disk on the areas exposed to radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.