Exposure apparatus, exposure method, and method for...

Photocopying – Projection printing and copying cameras – With temperature or foreign particle control

Reexamination Certificate

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C355S053000

Reexamination Certificate

active

07852456

ABSTRACT:
An exposure apparatus fills an optical path space of an exposure light beam with a liquid, and exposes a substrate by irradiating the substrate with the exposure light beam via a projection optical system and the liquid. A first optical element of the projection optical system is provided with a removing device for removing foreign matters in a space inside of the concave surface portion. Immersion exposure is performed by permitting the exposure light beam to excellently reach an image plane via the projection optical system and the liquid.

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