Rohm and Haas Company

Rohm and Haas Electronic Materials Cmp Holdings, Inc.

Dow Global Technolgoies LLC

Aaron Sarafinas

Alan Saikin

Robert L Post

David Kolesar

Randall Wayne Stephens

Stephen Gerard Maroldo

Andrew M Savo

Michael M Cook

John David Finch

John Hiroshi Yamamoto

George McClain

Biwang Jiang

Santhosh K Ramalingam

Won Suh Park

Kathleen Anne Kas

Andrew Savo

A method of making a polishing layer for polishing a substrate selected from at least one of a magnetic substrate, an optical substrate and a semiconductor substrate is provided, comprising: providing a liquid prepolymer material; providing a plurality of hollow microspheres; exposing the plurality of hollow microspheres to a carbon dioxide atmosphere for an exposure period to form a plurality of treated hollow microspheres; combining the liquid prepolymer material with the plurality of treated hollow microspheres to form a curable mixture; allowing the curable mixture to undergo a reaction to form a cured material, wherein the reaction is allowed to begin &#x2266;24 hours after the formation of the plurality of treated hollow microspheres; and, deriving at least one polishing layer from the cured material; wherein the at least one polishing layer has a polishing surface adapted for polishing the substrate.

Method of manufacturing chemical mechanical polishing layers

A method of making a polishing layer for polishing a substrate is provided, comprising: providing a liquid prepolymer material; providing a plurality of hollow microspheres; exposing the plurality of hollow microspheres to a vacuum to form a plurality of exposed hollow microspheres; treating the plurality of exposed hollow microspheres with a carbon dioxide atmosphere to form a plurality of treated hollow microspheres; combining the liquid prepolymer material with the plurality of treated hollow microspheres to form a curable mixture; allowing the curable mixture to undergo a reaction to form a cured material, wherein the reaction is allowed to begin &#x2266;24 hours after the formation of the plurality of treated hollow microspheres; and, deriving at least one polishing layer from the cured material; wherein the at least one polishing layer has a polishing surface adapted for polishing the substrate.

A method for making an emulsion using a rotating membrane device () including:

Swept membrane emulsification

A method for preparing monodisperse crosslinked bead polymers by introducing droplets having a harmonic mean size from 50 to 1500 microns and comprising at least one monomer, at least one crosslinker and a free-radical polymerization initiator into an aqueous medium through orifices to produce an aqueous suspension of droplets having a volume fraction of droplets from 35 to 64%; wherein the droplets are not encapsulated; causing the aqueous suspension of droplets to flow in a downward direction in a pipe in which the temperature is maintained at least 20&#xb0; C. below the temperature at which the polymerization initiator has a half-life of 1 hour; and polymerizing the droplets in a reactor.

Method for producing polymer beads of uniform size

The present invention provides an apparatus for forming a chemical mechanical polishing pad, comprising a tank with polymeric materials, a storage silo with microspheres and a curative storage tank with curing agents. The apparatus further provides a premix prep tank for forming a pre-mixture of the polymeric materials and the microspheres and a recirculation loop in the premix prep tank for recirculating the pre-mixture until a desired bulk density is reached. The apparatus further provides a premix run tank for storing the pre-mixture, a mixer for forming a mixture of the pre-mixture and the curing agents and a mold for molding the mixture.

Apparatus for forming a striation reduced chemical mechanical polishing pad

The present invention relates to a method of making lithium borohydride that gives high yields while maintaining ease of purification.

Method of making lithium borohydride

The present invention relates to a method to prepare 2-pyridyl substituted dihydrothiazoles.

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Ivyland, PA, United States of America

Aaron Sarafinas