Lithographic apparatus and device manufacturing method

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

2007-12-11

2007-12-11

Nguyen, Henry Hung (Department: 2851)

Photocopying

Projection printing and copying cameras

Detailed holder for photosensitive paper

C355S075000

Reexamination Certificate

active

10980833

ABSTRACT:
A lithographic apparatus includes an illumination system for conditioning a beam of radiation, and an article support for supporting a substantially flat article to be placed in a beam path of the beam of radiation. The article support includes a plurality of supporting protrusions that define a support zone for providing a substantially flat plane of support. The apparatus also includes a backfill gas feed for providing an improved thermal conduction between the article and the article support. The backfill gas feed includes a backfill gas discharge zone for feeding backfill gas to a backside of the article when supported by the article support. The backfill gas discharge zone substantially encloses the support zone.

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