Sputtering apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 8, 2000
Grant Date -
N/A
app pub date -
Oct 23, 1996
filing date -
Nov 13, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A long distance sputtering apparatus is provided in which a target and a substrate are disposed so as to oppose each other in a vacuum vessel provided with an exhaust system, wherein the target and substrate are separated by a distance of 150 mm or more. The long distance sputtering apparatus includes a gas-introducing tube, a cylindrical shield, and an exhaust hole. The gas-introducing tube introduces gas from a location closer to the target than halfway between the target and the substrate. The shield is disposed so as to surround the space between the target and the substrate. The exhaust hole is formed closer to the substrate than the gas-introducing tube. The pressure distribution of the sputtering gas between the target and the substrate is characterized by a higher pressure toward the target and a lower pressure toward the substrate.
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