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7828634 |
Interconnected-multi-element-lattice polishing pad
The polishing pad (104) is useful for polishing at least one of magnetic, optical and semiconductor substrates (112) in the presence of a polishing medium (120). The polishing pad (104) includes a...
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7744447 |
Abrasive disc
An abrasive disc comprises a disc substrate having a peripheral portion, plural abrasive chips each having an abrasive layer on a metal piece and being arranged in the peripheral portion of the...
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7736215 |
Polishing tool and polishing method and apparatus using same
A polishing tool comprising a support member, and polishing means fixed to the support member. The polishing means is composed of felt having a density of 0.20 g/cm3 or more and a hardness of 30 or...
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7727056 |
Sanding element
The invention concerns a sanding element with a succession of overlapping lamellas (3, 4) containing sanding grains (9), characterized in that these lamellas (3, 4) are alternately formed of...
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7628829 |
Abrasive article and method of making and using the same
An abrasive article comprises a porous abrasive member, a nonwoven filter medium, and a porous attachment fabric. A plurality of openings in the porous abrasive member cooperates with the nonwoven...
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7364501 |
Sanding block and method of making same
A sanding block includes a compressible core having at least one pair of sides characterized such that an abrasive material is adhered to said sides substantially along the surface thereof and...
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7264641 |
Polishing pad comprising biodegradable polymer
The invention is directed to a polishing pad for use in chemical-mechanical polishing comprising a biodegradable polymer. The biodegradable polymer comprises a repeat unit selected from the group...
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6986706 |
Polishing pad and method of producing the same
A polishing pad has a working layer provided with an abrasive powder, an attaching layer for attaching a pad to a polishing head of a power tool, and a connection layer which connects the working...
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6949018 |
Apparatus for finishing surfaces
A method is described for surface finishing complex and simple surface shapes by abrasion of selected zones of surface, leaving contiguous zones unfinished.
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6929539 |
Flexible abrasive product and method of making and using the same
The present invention provides a flexible abrasive product comprised of an open cell foam backing, a foraminous barrier coating and a shaped foraminous abrasive coating. The flexible abrasive...
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6843711 |
Chemical mechanical polishing pad having a process-dependent groove configuration
A polishing body, e.g., pad (200, 230, 260, 300) or belt (400, 500) having a polishing layer (214, 404) that includes a backmixing region (202, 232, 262, 308, 416, 508) wherein backmixing can occur...
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6780096 |
Spiral wound abrasive belt and method
A spiral wound abrasive belt is formed from an abrasive media including a plurality of webs. The webs of the abrasive media may include coated abrasives joined by splicing media or other suitable...
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6699104 |
Elimination of trapped air under polishing pads
A polishing pad includes a polishing layer and an adhesive layer. An adhesive bottom surface of the adhesive layer has an air transmitting pathway to collect air that is expelled from under the...
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6666752 |
Wafer retainer and method for attaching/detaching the wafer retainer to/from polishing machine base plate
A wafer retainer includes: a foam layer capable of adsorbing a wafer on a surface thereof in a detachable manner; a first pressure-sensitive adhesive layer formed on a back face of the foam layer;...
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6620036 |
Stacked polishing pad having sealed edge
A stacked polishing pad includes an upper polishing layer and a lower sub-layer having major faces which are in contact with each other. The polishing layer is substantially impermeable to liquid...
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6616520 |
Polishing cloth and method for attaching/detaching the polishing cloth to/from polishing machine base plate
A polishing cloth includes: a polishing cloth substrate; a first-pressure adhesive layer formed on a back face of the polishing cloth substrate; as support formed on a back face of the first...
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6595842 |
Abrasive pad and method of making same
An abrasive pad removably attachable to a driven rotatable shaft and including a plurality of angularly offset abrasive members. Each abrasive member includes an outwardly facing surface having an...
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6517426 |
Composite polishing pad for chemical-mechanical polishing
A composite polishing pad for use in a linear chemical-mechanical polishing apparatus is provided. The pad comprises a hard polishing pad having a polishing surface and an attachment surface...
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6506277 |
Abrasive sheet dispenser and method of use
A dispenser and method for attaching abrasive sheets to a backup pad. The dispenser conveniently centers on the backup pad an abrasive sheet that is larger than the backup pad. In a preferred...
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6458023 |
Multi characterized chemical mechanical polishing pad and method for fabricating the same
A multi characterized CMP (Chemical Mechanical Polishing) pad structure includes a lower pad and an upper pad. The lower pad includes a lower central soft pad region and a lower peripheral soft pad...
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6379238 |
Finishing and abrasive tool
A finishing star or spinner abrasive tool is formed of inner and outer packs of square sheets of abrasive cloth or sandpaper with the inner packs angularly offset from the outer packs on the...
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6315645 |
Patterned polishing pad for use in chemical mechanical polishing of semiconductor wafers
A patterned polishing pad adapted for use in a wafer polishing machine. The patterned polishing pad has a polishing surface adapted to contact frictionally a semiconductor wafer being polished in a...
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6254456 |
Modifying contact areas of a polishing pad to promote uniform removal rates
A polishing pad surface having a surface designed for chemical mechanical polishing of a substrate surface is described. The polishing pad surface includes a first area on the surface exposed to...
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6231427 |
Linear polisher and method for semiconductor wafer planarization
A wafer polisher and method for the chemical mechanical planarization of semiconductor wafers. The polisher includes a wafer holder for supporting the semiconductor wafer and a linear polishing...
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6068540 |
Polishing device and polishing cloth for semiconductor substrates
The polishing device grinds or polishes semiconductor substrates. The device includes a polishing table, into which a measuring device is integrated and a through opening. A polishing cloth covers...
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5752876 |
Flap disc abrasive tool
A flap disc for use with a rotary surface finishing tool, the flap disc includes a backing plate which attaches to and is rotated by the finishing tool. The backing plate has a mounting flange on...
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5554068 |
Abrasive flap brush and method and apparatus for making same
An abrasive flap brush including a central core, a layer of adhesive disposed on the peripheral surface of the core by a coater, and a plurality of abrasive flaps adhered to the core by the...
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5489233 |
Polishing pads and methods for their use
An improved polishing pad is provided comprising a solid uniform polymer sheet having no intrinsic ability to absorb or transport slurry particles having during use a surface texture or pattern...
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5369916 |
Polishing element
The invention relates to a polishing element for use in a system and apparatus and a method for finishing and polishing a dental composite restorative material in a tooth. The system of the...
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5142829 |
Abrasive article
The present invention relates to an abrasive article comprising an aligned row of connected abrasive sheet members each having a main portion, an aperture formed in the main portion, and a...
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4962618 |
Lens lapping pad
A lens lapping pad comprising a zinc alloy foil having a thickness of about 0.1 mm, and a backing of cloth impregnated with a pressure sensitive adhesive, to give an overall pad thickness of about...
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4631220 |
Coated abrasive back-up pad with metal reinforcing plate
A coated abrasive back up pad comprising a layer of resiliently compressible foam, a generally rigid fiber reinformced polymeric backing plate, a circular array of openings in the backing plate...
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4255164 |
Fining sheet and method of making and using the same
A glass fining sheet particularly suited for finishing rough ground vitreous surfaces to provide a surface finish which may be readily polished comprises a flexible, conformable backing sheet...
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4086068 |
Lens grinding and polishing lap cover and method of making same
A lap cover for a curved surface lens grinding tool or lap comprises an elongate body portion having a leading end and a terminal end and a plurality of spaced integral elongate appendage portions...
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3991527 |
Coated abrasive disc
A coated abrasive disc is prepared for use in power driven abrading, grinding, buffing tools and the like, by coating a substrate disc or sheet of fibrous paperboard, or like material, as by means...
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3844072 |
REPLACEABLE RESILIENT PAD ASSEMBLY FOR ABRASIVE FINISHING ARTICLES
A throwaway resilient pad assembly formed of a body of resilient material having first and second side faces. The side faces are such that a plurality of abrasive finishing members can be adhered...
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3119208 |
Abrasive disc units
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2946163 |
Grinders
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2918762 |
Abrasive devices
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2807918 |
Sanding disc
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