Masking method for locally treating surface
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United States of America Patent
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Oct 28, 2014
Grant Date -
Jan 16, 2014
app pub date -
Oct 23, 2012
filing date -
Jul 13, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
This present invention provides a masking method for locally treating surface of a workpiece by masking the workpiece. The workpiece has a targeting treatment area and a non-targeting treatment area. The masking method includes: covering a fixture on the non-targeting treatment area of the workpiece to expose the targeting treatment area of the workpiece; by using an adsorbing force existing between the fixture and the workpiece, getting the fixture to closely contact with the non-targeting treatment area of the workpiece and to make an end edge of the fixture correspond to the edge of the targeting treatment area of the workpiece, wherein the adsorbing force is a vacuum adsorbing force or a static electric adsorbing force. Thereby the surface treatment only effects in an area within the range of the targeting treatment area of the workpiece so as to reduce the treatment defect.
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