Process of producing master carrier for magnetic transfer
US7294251B2 · kind B2 · utility
1Cited by
1References
4Claims
0Family size
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Key dates
| Filing date | Aug 12, 2004 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Sep 16, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A process for producing a master carrier contains steps of: forming a desired pattern on a support to form a resist pattern support; forming a first ferromagnetic thin film on the resist pattern support by a vacuum film forming method; forming a third ferromagnetic thick film on the first ferromagnetic thin film by an electroplating; and peeling the support from the resist pattern support provided with the first ferromagnetic thin film and the third ferromagnetic thick film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.