Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 8105133 | Airfoil mask, airfoil and mask system A mask for performing high speed media finishing on airfoils includes a thicker portion and a thinner portion. The thicker portion is spaced further from an edge that will become a leading edge in the final airfoil than the thinner portion. The media is redirected b... | 01/31/2012 |
| 7934979 | Retaining ring with tapered inner surface A retaining ring has a generally annular body with a top surface, a bottom surface, an inner diameter surface, and an outer diameter surface. The outer diameter surface includes an outwardly projecting flange having a lower surface, and the bottom surface includes a... | 05/03/2011 |
| 7901273 | Carrier ring for carrier head A carrier head that has a base assembly, a retaining ring assembly, a carrier ring, and a flexible membrane is described. A carrier ring has an annular upper portion and an annular lower portion having a lower surface with a smaller inner diameter than the upper sur... | 03/08/2011 |
| 7722445 | Insertion tool for an angle grinder An insertion tool (12) for an angle grinder (2) that has a hub (16) with at least a first fastening means for fastening the hub (16) to a driving device (22) of the angle grinder (2). The first fastening means if located on ... | 05/25/2010 |
| 7699688 | Carrier ring for carrier head A carrier head that has a base assembly, a retaining ring assembly, a carrier ring, and a flexible membrane is described. A carrier ring has an annular upper portion and an annular lower portion having a lower surface with a smaller inner diameter than the upper sur... | 04/20/2010 |
| 7686678 | Tool setter for a grinding machine A device or tool setter has the purpose of setting the position of a support bar, adjustably connected to a grinding machine, in relation to a rotatable grindstone of the machine for obtaining a desired edge angle of a tool supported for grinding by the support bar.... | 03/30/2010 |
| 7677958 | Retaining ring with flange for chemical mechanical polishing A retaining ring has a generally annular body with a top surface, a bottom surface, an inner diameter surface, and an outer diameter surface. The outer diameter surface includes an outwardly projecting flange having a lower surface, and the bottom surface includes a... | 03/16/2010 |
| 7278910 | Wheel scraper for a floor sander A wheel scraper for a floor sander attaches to the swivel support wheel of a floor sander and scraper debris from the support wheel in order to prevent debris accumulation on the support wheel. The device includes a frame that attaches to the floor sander and that p... | 10/09/2007 |
| 7198559 | Modular sander-casing architecture A sander-casing may include: a field housing to contain at least a motor, the field housing having an interface connectable to a random orbital sander (ROS) shroud and a quarter sheet sander (QSS) shroud. The ROS shroud can contain an ROS-type power transmission. Th... | 04/03/2007 |
| 7192340 | Polishing pad, method of producing the same, and cushion layer for polishing pad The polishing pad of this invention is a polishing pad effecting stable planarizing processing, at high polishing rate, materials requiring surface flatness at high level, such as a silicon wafer for semiconductor devices, a magnetic disk, an optical lens etc. This ... | 03/20/2007 |
| 7189153 | Retaining rings, planarizing apparatuses including retaining rings, and methods for planarizing micro-device workpieces Retaining rings, planarizing apparatuses including retaining rings, and methods for mechanical and/or chemical-mechanical planarization of micro-device workpieces are disclosed herein. In one embodiment, a carrier head for retaining a micro-device workpiece during m... | 03/13/2007 |
| 7186171 | Composite retaining ring A two part retaining ring is described that has a lower ring and an upper ring. The lower ring contacts a polishing surface during chemical mechanical polishing. The upper surface and the lower surface of the lower ring have matching grooves formed therein to increa... | 03/06/2007 |
| 7169018 | Wafer carrier checker and method of using same A tool and method for assessing whether a disk carrier, and especially a carrier for holding semiconductor disks, is properly dimensioned. The tool has a body that includes a socket in which a portion of the disk carrier will seat fully if the disk carrier is proper... | 01/30/2007 |
| 7160493 | Retaining ring for use on a carrier of a polishing apparatus The invention provides a unitary retaining ring for use in a CMP apparatus. The retaining ring features a pad engaging surface which is designed to be flat and planar when the retaining ring is mounted to a carrier of the CMP apparatus. The pad engaging surface incl... | 01/09/2007 |
| 7153200 | Blade grinding tool A blade grinding tool includes a main base, a sucker mounted on the main base and attached to a surface, and a grinding unit mounted on the main base for grinding a blade of a cutting tool. Thus, the blade grinding tool is attached to a surface, so that a user needs... | 12/26/2006 |
| 7134947 | Chemical mechanical polishing system According to one embodiment of the invention, a chemical mechanical polishing system includes a platen having a first surface adapted to couple a polishing pad thereto. The first surface includes a generally circular center portion and an annular portion surrounding... | 11/14/2006 |
| 7125326 | Apparatus and method for removing a CMP polishing pad from a platen The invention provides a pad removal apparatus and method that enables improved pad removal from a platen. ... | 10/24/2006 |
| 7121936 | Grinding wheel replacement fixture An apparatus to facilitate the replacement of a grinding wheel secured to a mounting plate. The apparatus includes a frame having two spaced-apart uprights. An elongated support bar extends between and is pivotally mounted to the uprights while a mounting plate of a... | 10/17/2006 |
| 7118456 | Polishing head, retaining ring for use therewith and method fo polishing a substrate A polishing apparatus is provided for removing material from a surface of a substrate. The apparatus includes a polishing head for positioning a surface of a substrate against a polishing surface of the apparatus. The polishing head includes a subcarrier adapted to ... | 10/10/2006 |
| 7118468 | Floor sanding vacuum A floor sanding vacuum is designed to be used in conjunction with floor sanding machines to provide a near dust free process for sanding floors. A displacement blower is driven by a gasoline or electric motor which creates a high vacuum that draws air through the sa... | 10/10/2006 |
| 7094139 | Retaining ring with flange for chemical mechanical polishing A retaining ring has a generally annular body with a top surface, a bottom surface, an inner diameter surface, and an outer diameter surface. The outer diameter surface includes an outwardly projecting flange having a lower surface, and the bottom surface includes a... | 08/22/2006 |
| 7044840 | Grinding method and grinding machine In a grinding machine grinding a workpiece W by a grinding wheel G to supply coolant to one of a grinding point P or the workpiece W by way of a relative movement between the grinding wheel W rotatably supported on a wheel slide 11 and the workpiece W support... | 05/16/2006 |
| 7040972 | Power tool A power tool with a housing (12) and a tool (18, 22) located thereon such that it is capable of being driven in a rotating and/or oscillating manner, the tool being operable as directed using vacuum flow, in particular using a vacuum cleaner. The power... | 05/09/2006 |
| 7029386 | Retaining ring assembly for use in chemical mechanical polishing A retaining ring assembly for use in chemical mechanical polishing that includes an annular plastic retaining ring portion defining an annular projection thereon, an annular metal backing defining an annular channel therein for receiving the projection and a pair of... | 04/18/2006 |
| 7029375 | Retaining ring structure for edge control during chemical-mechanical polishing The retaining ring has a plurality of slurry channels wherein each alternate channel is recessed away from the inner circumference of the pad contacting surface forming a recess which extends upward from the bottom surface sufficient to prevent contact of the retain... | 04/18/2006 |
| 7008293 | Positioning jig, spray polishing device using positioning jig and spray polishing method A positioning jig which is applied to a spray polishing device which sprays a polishing liquid to a material to be polished and polishes the material to be polished, determines a relative position of a material to be polished and a polishing liquid spraying nozzle. | 03/07/2006 |
| 7001260 | Carrier head with a compressible film A compressible film that is detachably securable to a surface of a rigid structure in the carrier head. The compressible film has a plurality of apertures positioned to create a non-uniform pressure distribution on a substrate during polishing so as to improve polis... | 02/21/2006 |
| 6979251 | Method and apparatus to add slurry to a polishing system A semiconductor wafer is wetted with slurry by injecting the slurry into at least one channel which is provided in a wear ring, while the wear ring is holding the wafer and is pressed against a polishing pad. Preferably, the channel in the wear ring includes a plura... | 12/27/2005 |
| 6964597 | Retaining ring with trigger for chemical mechanical polishing apparatus A retaining ring for chemical mechanical polishing (CMP) apparatus comprising a body of the retaining ring, and a single trigger cavity, or a plurality of trigger cavities. Each trigger cavity formed inside the body of the retaining ring is filed with gas or fluid, ... | 11/15/2005 |
| 6962520 | Retaining rings, planarizing apparatuses including retaining rings, and methods for planarizing micro-device workpieces Retaining rings, planarizing apparatuses including retaining rings, and methods for mechanical and/or chemical-mechanical planarization of micro-device workpieces are disclosed herein. In one embodiment, a carrier head for retaining a micro-device workpiece during m... | 11/08/2005 |
| 6939212 | Porous material air bearing platen for chemical mechanical planarization A platen for use in chemical mechanical planarization (CMP) systems includes a platen plate that has at least one recess defined therein. The at least one recess has an input port formed therein. A porous material is disposed in the at least one recess. The porous m... | 09/06/2005 |
| 6912941 | Steel rule die with removable cutting units A steel rule die for cutting cloth and synthetic materials. The cutting die includes a primary substrate and a plurality of cutting units that are removably attachable to the substrate in such a manner that they are easy to adjust, remove and replace. The cutting un... | 07/05/2005 |
| 6896604 | Handheld flush-cutting concrete saw having a dust abatement vacuum hood A dust abatement vacuum hood, provided for a flush-cutting concrete saw, includes a rigid shell that is preferably either vacuum formed or injection molded from a tough polymeric material that may be reinforced with structural fibers. Alternatively, the vacuum hood ... | 05/24/2005 |
| 6866563 | Apparatus and method for target polishing intraocular lenses A mask for removably covering an IOL to protect a sharp peripheral edge of the IOL optic during polishing. ... | 03/15/2005 |
| 6793568 | Handle for an orbital sander A handle for an orbital sander (10) of the type having a dust extractor (17) containing an exhaust outlet (18), the handle having: a first part in the form of an elongate tubular member (19) having two open ends, one end being attachable ... | 09/21/2004 |
| 6729939 | Polishing method for intraocular lens A method for removable attachment of a mask to an IOL to protect a sharp peripheral edge of the IOL optic during polishing. ... | 05/04/2004 |
| 6676489 | Sound enhanced lapping apparatus A method of lapping semiconductor wafers includes the step of transmitting sounds generated during the lapping process to a receiver, allowing the operator to use sound to more quickly detect problems associated with starting the lap process.... | 01/13/2004 |
| 6626166 | Waste containment separation system for an abrading or cutting device Abrading and cutting devices such as saws include waste containment systems and methods to improve removal of slurry or other contaminants from a work area during operations, and separation of slurry from a carrying medium such as air. A vacuum bar includ... | 09/30/2003 |
| 6620035 | Grooved rollers for a linear chemical mechanical planarization system In a linear chemical mechanical planarization (CMP) system, a surface of each roller of a pair of rollers is disclosed which includes a first set of grooves covering a first portion of the surface of the roller where the first set of grooves has a first p... | 09/16/2003 |
| 6607429 | Support for temporary fixation of self-sticking abrasive and/or polishing sheet The present invention relates to a support (4-7) for temporary fixation of a self-sticking abrasive and/or polishing sheet (2) comprising an adhesive layer (3), said support (4-7) comprising a surface for receiving the sheet (2), where the surface of the ... | 08/19/2003 |
