Treatment apparatus
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United States of America Patent
Stats
-
Mar 17, 1998
Grant Date -
N/A
app pub date -
Aug 21, 1995
filing date -
Aug 23, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a treatment apparatus, a collimator is insulated electrically from the other equipment to be rendered electrically floating, and also the potential of the collimator is variably controllable by a variable DC power source. Therefore, the thickness in plane of the layer to be produced can be uniformalized by controlling the voltage applied to the collimator, without changing both layout and figure of the hardware, e.g., permanent magnet, without process, and further without both beginning and end of a target.
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