Disk alignment apparatus and method for patterned media production
US6939120B1 · kind B1 · utility
87Cited by
17References
37Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 12, 2002 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Aug 26, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/81
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for aligning a disk with an imprinting surface are described. In one embodiment, the apparatus has a die which includes an air-bearing mandrel having a tapered nose to engage an ID of the disk, a circular imprinting surface having a centerline concentric with the air-bearing mandrel, and an air-bearing cavity to position the disk. The axial movement of the top die towards the bottom die guides the ID of the disk into coincident alignment with the centerline of the top die.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.