Arrangement for transporting a flat substrate in a vacuum chamber
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United States of America Patent
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-
Nov 23, 2010
Grant Date -
Sep 15, 2005
app pub date -
Dec 10, 2003
filing date -
Apr 30, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An arrangement for transporting a flat substrate through a coating installation, wherein the coating installation comprises, e.g., several and different sputter cathodes, to which the flat substrate, for example a glass pane, is transported one after the other in vacuo. So that no abrasion is generated between glass pane and contact, the glass pane is kept spaced apart from the contact by means of gas pressure. The gas pressure is herein built up through relatively few and small holes in a gas channel. Since during flooding of the coating installation to atmospheric pressure or during evacuation, due to the small holes, no fast pressure equalization between gas channel and the remaining coating installation is possible, the gas channel is decoupled in terms of gas from the remaining coating installation and provided with a separate gas line, via which gas can be introduced into the gas channel or pumped out of it.
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