Patterning device support, lithographic apparatus, and method of controlling patterning device temperature
US9632433B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 21, 2013 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Jan 12, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/70866
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A patterning device support (1100) for controlling a temperature of a patterning device (1102) can include a movable component (1104). The movable component can include a gas inlet (1108) for supplying a gas flow across a surface of the patterning device and a gas outlet (1110) for extracting the gas flow. The patterning device support can also include a gas flow generator (1118) coupled to a duct (1114, 1116) for recirculating the gas flow from the gas outlet to the gas inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.