DRESSING BAR FOR EMBEDDING ABRASIVE PARTICLES INTO SUBSTRATES
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United States of America Patent
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Issued Date -
May 5, 2011
app pub date -
Apr 23, 2010
filing date -
Apr 30, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
One or more individually gimballed dressing bars for embedding abrasive particles into a substrate at a substantially uniform height. A hydrostatic and/or hydrodynamic fluid bearing (air is the typical fluid) is maintained between the dressing bar and the substrate. The fluid bearing permits the dressing bar to follow micrometer-scale and/or millimeter-scale wavelengths of waviness on the substrate, while maintaining a constant clearance, to uniformly embed the abrasive particle into the substrate.
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