Droplet and filament target stabilizer for EUV source nozzles

An EUV radiation source that creates a stable solid target filament. The source includes a nozzle assembly having a condenser chamber for cryogenically cooling a gaseous target material into a liquid state. The liquid target material is forced through an orifice of a target filament generator into a...

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Bibliographic Details
Main Authors PETACH MICHAEL B, ORSINI ROCCO A, MCGREGOR ROY D
Format Patent
LanguageEnglish
Published 17.06.2004
Edition7
Subjects
APPARATUS SPECIALLY ADAPTED THEREFOR
CINEMATOGRAPHY
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
ELECTROGRAPHY
HOLOGRAPHY
MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
MATERIALS THEREFOR
MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES
NANOTECHNOLOGY
ORIGINALS THEREFOR
PERFORMING OPERATIONS
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHYSICS
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
TRANSPORTING
X-RAY TECHNIQUE
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Summary:An EUV radiation source that creates a stable solid target filament. The source includes a nozzle assembly having a condenser chamber for cryogenically cooling a gaseous target material into a liquid state. The liquid target material is forced through an orifice of a target filament generator into an evaporation chamber as a liquid target stream. The evaporation chamber has a higher pressure than a vacuum process chamber of the source to allow the liquid target material to freeze into a target filament in a stable manner. The frozen target filament is emitted from the evaporation chamber into the process chamber as a stable target filament towards a target area. The higher pressure in the evaporation chamber can be the result of the evaporative cooling of the target material alone or in combination with a supplemental gas.
Bibliography:Application Number: US20020317402