GAS LASER APPARATUS, LASER BEAM EMITTING METHOD OF GAS LASER APPARATUS, AND ELECTRONIC DEVICE MANUFACTURING METHOD
A gas laser apparatus includes a chamber; a window provided in the chamber; an optical path tube connected to the chamber; a gas supply port that supplies a purge gas into the optical path tube; an exhaust port that exhausts a gas in the optical path tube; and a control unit, the exhaust port includ...
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| creator | TEI, Daisuke |
| description | A gas laser apparatus includes a chamber; a window provided in the chamber; an optical path tube connected to the chamber; a gas supply port that supplies a purge gas into the optical path tube; an exhaust port that exhausts a gas in the optical path tube; and a control unit, the exhaust port including a main exhaust port provided in the optical path tube, and an auxiliary exhaust port provided in the optical path tube upstream of a flow of the gas in the optical path tube with respect to positions of the window and the main exhaust port, the control unit causing the gas to be exhausted through the main exhaust port before a laser beam is emitted from the chamber and causing the gas to be exhausted through the auxiliary exhaust port in at least a partial period when the laser beam is emitted. |
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a gas supply port that supplies a purge gas into the optical path tube; an exhaust port that exhausts a gas in the optical path tube; and a control unit, the exhaust port including a main exhaust port provided in the optical path tube, and an auxiliary exhaust port provided in the optical path tube upstream of a flow of the gas in the optical path tube with respect to positions of the window and the main exhaust port, the control unit causing the gas to be exhausted through the main exhaust port before a laser beam is emitted from the chamber and causing the gas to be exhausted through the auxiliary exhaust port in at least a partial period when the laser beam is emitted.</description><language>eng</language><subject>APPARATUS SPECIALLY ADAPTED THEREFOR ; BASIC ELECTRIC ELEMENTS ; CINEMATOGRAPHY ; DEVICES USING STIMULATED EMISSION ; ELECTRICITY ; ELECTROGRAPHY ; HOLOGRAPHY ; MATERIALS THEREFOR ; ORIGINALS THEREFOR ; PHOTOGRAPHY ; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES ; 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a window provided in the chamber; an optical path tube connected to the chamber; a gas supply port that supplies a purge gas into the optical path tube; an exhaust port that exhausts a gas in the optical path tube; and a control unit, the exhaust port including a main exhaust port provided in the optical path tube, and an auxiliary exhaust port provided in the optical path tube upstream of a flow of the gas in the optical path tube with respect to positions of the window and the main exhaust port, the control unit causing the gas to be exhausted through the main exhaust port before a laser beam is emitted from the chamber and causing the gas to be exhausted through the auxiliary exhaust port in at least a partial period when the laser beam is emitted.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | APPARATUS SPECIALLY ADAPTED THEREFOR BASIC ELECTRIC ELEMENTS CINEMATOGRAPHY DEVICES USING STIMULATED EMISSION ELECTRICITY ELECTROGRAPHY HOLOGRAPHY MATERIALS THEREFOR ORIGINALS THEREFOR PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS |
| title | GAS LASER APPARATUS, LASER BEAM EMITTING METHOD OF GAS LASER APPARATUS, AND ELECTRONIC DEVICE MANUFACTURING METHOD |
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