Method and apparatus for laser texturing a magnetic recording disk substrate
US6013894A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1998 |
| Grant date | Jan 11, 2000 |
| Priority date | — |
| Expiry date | Feb 9, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S414/138
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Method and apparatus for laser texturing a magnetic recording disk substrate, including a disk-loading and unloading conveyer, a pair of disk-carrying spindles and associated laser systems disposed in spaced-apart relationship, and a disk-handling mechanism disposed between the conveyer and the set of spindles and operative to obtain a first disk rom the conveyer, place it on a first spindle for texturing on one side, remove the partially textured first disk from the first spindle, flip it upside down and place it on a second spindle for texturing on the other side, while at the same time obtaining a second disk from the conveyor and loading it onto the first spindle for texturing on one side. A third disk is then removed from the conveyor and loaded onto the first spindle as the second disk is removed therefrom, flipped over and placed on the second spindle as the first disk is removed therefrom and returned to the conveyor. After the first disk is returned to the conveyor, one fully textured disk is returned to the conveyor following each texturing cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.