In-line disk sputtering system
US4749465A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1986 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | Feb 6, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S414/14
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A step-dwell transport apparatus and method for use in an in-line controlled environment processing system is disclosed. The transport apparatus employs a plurality of shuttles arranged in series along two parallel rails. Each shuttle carries one or more planar objects through a process chamber, which contains several in-line processing stations. One of the rails guides a queue of abutting shuttles through the process chamber, while the other rail serves as a return path for another queue of abutting shuttles. The shuttles move along each rail, with locomotion along the rail being provided by a pneumatic cylinder and linkage that periodically pushes forward the trailing shuttle in the queue. Transfer mechanisms are provided at each end of the apparatus to transfer individual shuttles from the end of one rail to the beginning of the other rail. Shuttles are supplied to and withdrawn from the process chamber one at a time through in-line air locks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.