Laser texturing apparatus with bernoulli holder
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United States of America Patent
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Nov 10, 1998
Issued Date -
N/A
app pub date -
Jun 4, 1997
filing date -
Jun 4, 1997
priority date (Note) -
Expired
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Abstract
An apparatus for laser texturing the inner annular region of a substrate is described. The apparatus includes a Bernoulli holder for supporting the disc at a fixed distance from a support face in the holder, and a laser beam for directing a pulsed laser beam on the substrate's inner annular region. Also included is an optical assembly for varying the position of such a spot on such inner annular surface region of the substrate.
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