发明名称 X-ray-generating devices and exposure apparatus comprising same
摘要 Devices are disclosed for generating X-rays, especially in a vacuum chamber from plasma formed by irradiating a target material with laser light, that provide convenient removal from the vacuum chamber of high-frequency-maintenance components without disturbing other components. In one configuration denoted a liquid-jet-type of X-ray generator, a nozzle (for spraying target material) and a mirror are situated in a vacuum chamber. The nozzle has a higher maintenance frequency than the mirror. A flange member is provided on an outer wall of the vacuum chamber to cover an opening in the wall. The nozzle is connected to a conduit having a base mounted to the flange member. The nozzle is removable for maintenance by detaching the flange member and withdrawing the nozzle through the opening. Thus, the highest-frequency-maintenance component, the nozzle, is removed without moving or removing any other component in the chamber, such as the mirror.
申请公布号 US2005207536(A1) 申请公布日期 2005.09.22
申请号 US20050084380 申请日期 2005.03.18
申请人 NIKON CORPORATION 发明人 SHIRAISHI MASAYUKI
分类号 G01T1/18;G03F7/20;G21G4/00;H01J35/00;H01J47/00;H01J47/02;H01J47/06;H05G2/00;H05H1/00;(IPC1-7):H05H1/00 主分类号 G01T1/18
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