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    • 7. 发明申请
    • DEVICE FOR APPLYING TO A SUBSTRATE A LIQUID MEDIUM THAT HAS BEEN CHARGED WITH UV RADIATION
    • US20180221919A1
    • 2018-08-09
    • US15751194
    • 2016-08-24
    • SUSS MicroTec Photomask Equipment GmbH & Co. KG
    • Peter DressUwe DietzePeter Grabitz
    • B08B3/10H01L21/67B08B7/00
    • B08B3/10B08B7/0057H01L21/67051H01L21/67115
    • An apparatus for applying a liquid medium irradiated with UV radiation onto a substrate is disclosed, the apparatus comprising: a housing having an elongated chamber, at least one inlet opening, which opens into the chamber, and at least one slit shaped outlet opening opposite the inlet opening, which extends over the length of the chamber, a tube element, which extends in a longitudinal direction through the chamber, the tube element being at least partially transparent to UV radiation, wherein the tube element is arranged in the chamber such that a flow space is formed between the tube element and the wall of the chamber, the flow space being symmetric with respect to a longitudinal centre plane of the chamber, the longitudinal centre plane dissecting the outlet opening in its middle, and such that the tube element extends into the slit shaped outlet opening in the housing and thereby forms two longitudinally extending outlet silts between the tube element and the housing, and at least one UV-radiation source in the tube element, which is arranged to emit UV-radiation in the direction of the flow space and through the outlet opening out of the housing. The apparatus is distinguished by means which are suitable for influencing the radiation which is emitted by the at least one UV radiation source and exits the outlet opening in such a way that a substantially homogeneous spatial distribution of radicals in a region beneath at least 50% of the outlet opening is formed on the surface of the substrate. In the known design, in a region below the center of the outlet opening, a high radical concentration is formed, which rapidly decreases in a direction transverse to the outlet opening.