Radiant energy – Irradiation of objects or material – Irradiation of semiconductor devices
Reexamination Certificate
2005-12-08
2008-12-16
Berman, Jack I (Department: 2881)
Radiant energy
Irradiation of objects or material
Irradiation of semiconductor devices
C250S503100, C250S50400H, C378S034000
Reexamination Certificate
active
07465943
ABSTRACT:
A lithographic apparatus includes a collector configured to collect radiation from a radiation source, the collector including a plurality of shells forming separate compartments, and a cleaning arrangement including a gas inlet and a gas outlet, the cleaning arrangement being configured to clean surfaces of the plurality of shells by guiding a gas flow from the inlet through the compartments to the outlet. The cleaning arrangement includes a distribution system configured to divide the gas flow into several sub flows, each of the sub flows corresponding to one or more of the compartments, and a control system configured to control the relative amount of the sub flows.
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Banine Vadim Yevgenyevich
Klunder Derk Jan Wilfred
Skelly Sonia Margart
Van Herpen Maarten Marinus Johannes Wilhelmus
ASML Netherlands B.V.
Berman Jack I
Maskell Michael
Pillsbury Winthrop Shaw & Pittman LLP
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