Fixed abrasive three-dimensional lapping and polishing plate and methods of making and using the same

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United States of America Patent

PATENT NO 11565374
APP PUB NO 20190255676A1
SERIAL NO

16277827

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Abstract

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A fixed abrasive three-dimensional plate includes micron size diamond beads or a mixture of abrasive particles and metal oxide beads, ranging in size from a few microns to a few tens of microns, incorporated into a matrix of one or more inorganic binders and fillers. The composition is formed into a rigid plate blank, and the abrasive plate is mounted on a substrate forming a lapping/polishing plate. The abrasive plate is capable of delivering high material removal rates coupled with reduced surface roughness when lapping/polishing advanced materials, including sapphire, titanium carbide reinforced alumina, silicon carbide, gallium nitride, aluminum nitride, zinc selenide, and other compound semiconductor materials, as well as, glass, ceramic, metallic, and composite workpieces. The diamond beads incorporated in the fixed abrasive three-dimensional plate include diamond particles ranging in size from a few nanometers to a few tens of microns, bonded with one or more inorganic binders and additives.

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Patent Owner(s)

Patent OwnerAddress
ENGIS CORPORATION105 W HINTZ ROAD WHEELING IL 60090

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Benea, Ion C Prospect Heights, US 2 3
Onyenemezu, Clement N Crest Hill, US 3 44
Rosczyk, Benjamin R Evanston, US 1 1

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