Laser drilling processes for forming an apertured film
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United States of America Patent
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Jun 29, 1999
Issued Date -
N/A
app pub date -
Dec 18, 1995
filing date -
Sep 13, 1993
priority date (Note) -
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Abstract
A method of forming an apertured support member is accomplished by directing a laser beam at a workpiece, focusing the laser beam at the top surface of the workpiece, moving the laser beam in a series of raster scans over the surface of the workpiece. During each scan, the laser is turned on at predetermined intervals to drill one or more discrete portions of each of the apertures to form apertures surrounded by a plateau on the resulting support member.
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