Lithographic apparatus and device manufacturing method

Details Lithographic apparatus and device manufacturing method Lithographic apparatus and device manufacturing method

2006-06-13

2006-06-13

Nguyen, Henry Hung (Department: 2851)

Photocopying

Projection printing and copying cameras

Step and repeat

C355S072000, C355S075000

Reexamination Certificate

active

07061579

ABSTRACT:
A lithographic apparatus is disclosed. The apparatus includes an illumination system that provides a beam of radiation, and a support structure that supports a patterning structure. The patterning structure is configured to impart the beam of radiation with a pattern in its cross-section. The apparatus also includes a substrate support that supports a substrate, a projection system that projects the patterned beam onto a target portion of the substrate, and a reference frame that provides a reference surface with respect to which a position of at least one of the substrate and the patterning structure is measured. The reference frame includes a material that has a coefficient of thermal expansion of greater than about 2.9×10−6/K.

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