Photocopying – Projection printing and copying cameras – Step and repeat
Reexamination Certificate
2007-01-09
2007-01-09
Nguyen, Henry Hung (Department: 2851)
Photocopying
Projection printing and copying cameras
Step and repeat
C355S072000, C355S075000, C310S012060
Reexamination Certificate
active
10910797
ABSTRACT:
A lithographic apparatus having a positioning device that facilitates the maintenance of a conditioned environment, is presented. Embodiments of the invention include a combination of a first drive unit and a second drive unit for positioning an object table in a lithographic apparatus. The first drive unit has a first part connected to the object table and a second part connected to a first part of the second drive unit. First and second part of the first drive unit are separated from each other by a wall. Maintaining a conditioned environment surrounding the object is thereby facilitated.
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ASML Netherlands B.V.
Nguyen Henry Hung
Pillsbury Winthrop Shaw & Pittman LLP
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