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USRE42849E1 Lithographic apparatus and device manufacturing method 失效
平版印刷设备和器件制造方法

Lithographic apparatus and device manufacturing method
摘要:
An immersion lithographic apparatus includes a voltage generator or power source that applies a potential difference to an object in contact with the immersion liquid such that bubbles and/or particles in the immersion liquid are either attracted or repelled from that object due to the electrokinetic potential of the surface of the bubble in the immersion liquid.
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