Patents by Inventor Wesley J. Bruxvoort
Wesley J. Bruxvoort has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6848986Abstract: The present invention is directed to a method of making a three-dimensional fixed abrasive article, and a three dimensional fixed abrasive made thereby. The method comprises providing an abrasive composition comprising a plurality of abrasive particles and a binder precursor. The binder precursor comprises a polymerizable material consisting essentially of an ethylenically unsaturated material having one or more terminal functional groups of the same type of reactive functionality, a photoinitiator, and a thermal initiator. The abrasive composition is then applied onto a backing. The method then comprises at least partially curing the binder precursor by activating the photoinitiator, and further curing the binder precursor by activating the thermal initiator to provide a three-dimensional fixed abrasive.Type: GrantFiled: April 30, 2003Date of Patent: February 1, 2005Assignee: 3M Innovative Properties CompanyInventors: Philip E. Kendall, Soon C. Park, Wesley J. Bruxvoort, Scott R. Culler, Jerry W. Williams
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Patent number: 6786810Abstract: A process for planarizing, polishing, or providing other modification of a wafer surface or other workpiece. The process includes using an abrasive article having a textured abrasive coating affixed to a backing. The abrasive article includes a monitoring element, such as a window, to allow transmission of radiation therethrough. The radiation level is monitored throughout the planarization process to determine the approach of the desired endpoint. The window in the abrasive coating can be an area devoid of abrasive coating or having minimal or a thinned abrasive coating.Type: GrantFiled: September 24, 2002Date of Patent: September 7, 2004Assignee: 3M Innovative Properties CompanyInventors: Michael J. Muilenburg, Chong-Yong J. Kim, Jerry J. Fizel, Richard J. Webb, John J. Gagliardi, Daniel B. Pendergrass, Jr., Robert J. Streifel, Wesley J. Bruxvoort
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Publication number: 20030194961Abstract: The present invention is directed to a method of making a three-dimensional fixed abrasive article, and a three dimensional fixed abrasive made thereby. The method comprises providing an abrasive composition comprising a plurality of abrasive particles and a binder precursor. The binder precursor comprises a polymerizable material consisting essentially of an ethylenically unsaturated material having one or more terminal functional groups of the same type of reactive functionality, a photoinitiator, and a thermal initiator. The abrasive composition is then applied onto a backing. The method then comprises at least partially curing the binder precursor by activating the photoinitiator, and further curing the binder precursor by activating the thermal initiator to provide a three-dimensional fixed abrasive.Type: ApplicationFiled: April 30, 2003Publication date: October 16, 2003Applicant: 3M Innovative Properties CompanyInventors: Philip E. Kendall, Soon C. Park, Wesley J. Bruxvoort, Scott R. Culler, Jerry W. Williams
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Patent number: 6612917Abstract: An abrasive article includes a fixed abrasive element, a resilient element, a rigid element disposed between the resilient element and the fixed abrasive element, and a plurality of microstructures disposed between the rigid element and the fixed abrasive element.Type: GrantFiled: February 7, 2001Date of Patent: September 2, 2003Assignee: 3M Innovative Properties CompanyInventor: Wesley J. Bruxvoort
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Patent number: 6604985Abstract: A process for planarizing, polishing, or providing other modification of a wafer surface or other workpiece. The process includes using an abrasive article having a textured abrasive coating affixed to a backing. The abrasive article includes a monitoring element, such as a window, to allow transmission of radiation therethrough. The radiation level is monitored throughout the planarization process to determine the approach of the desired endpoint. The window in the abrasive coating can be an area devoid of abrasive coating or having minimal or a thinned abrasive coating.Type: GrantFiled: November 7, 2002Date of Patent: August 12, 2003Assignee: 3M Innovative Properties CompanyInventors: Michael J. Muilenburg, Chong-Yong J. Kim, Jerry J. Fizel, Richard J. Webb, John J. Gagliardi, Daniel B. Pendergrass, Jr., Robert J. Streifel, Wesley J. Bruxvoort
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Publication number: 20030064663Abstract: A process for planarizing, polishing, or providing other modification of a wafer surface or other workpiece. The process includes using an abrasive article having a textured abrasive coating affixed to a backing. The abrasive article includes a monitoring element, such as a window, to allow transmission of radiation therethrough. The radiation level is monitored throughout the planarization process to determine the approach of the desired endpoint. The window in the abrasive coating can be an area devoid of abrasive coating or having minimal or a thinned abrasive coating.Type: ApplicationFiled: November 7, 2002Publication date: April 3, 2003Applicant: 3M Innovative Properties CompanyInventors: Michael J. Muilenburg, Chong-Yong J. Kim, Jerry L. Fizel, Richard J. Webb, John J. Gagliardi, Daniel B. Pendergrass, Robert J. Streifel, Wesley J. Bruxvoort
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Publication number: 20030024169Abstract: The present invention is directed to a method of abrading a surface of a workpiece. The method of the invention comprises bringing a surface of a workpiece and an abrasive article into frictional contact in the presence of an aqueous fluid. The abrasive article comprises a backing comprising a surface, and an abrasive layer bonded to the surface of the backing, the abrasive layer comprising a binder, a plurality of abrasive particles, and a plurality of organic water soluble particles, the abrasive layer comprising a plurality of three-dimensional abrasive composites. The invention is also directed to the abrasive article for use in the method.Type: ApplicationFiled: March 28, 2001Publication date: February 6, 2003Inventors: Philip E. Kendall, Soon C. Park, Wesley J. Bruxvoort
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Publication number: 20030022598Abstract: A process for planarizing, polishing, or providing other modification of a wafer surface or other workpiece. The process includes using an abrasive article having a textured abrasive coating affixed to a backing. The abrasive article includes a monitoring element, such as a window, to allow transmission of radiation therethrough. The radiation level is monitored throughout the planarization process to determine the approach of the desired endpoint. The window in the abrasive coating can be an area devoid of abrasive coating or having minimal or a thinned abrasive coating.Type: ApplicationFiled: September 24, 2002Publication date: January 30, 2003Applicant: 3M Innovative Properties CompanyInventors: Michael J. Muilenburg, Chong-Yong J. Kim, Jerry J. Fizel, Richard J. Webb, John J. Gagliardi, Daniel B. Pendergrass, Robert J. Streifel, Wesley J. Bruxvoort
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Publication number: 20030017797Abstract: The present invention is directed to a method of making a three-dimensional fixed abrasive article, and a three dimensional fixed abrasive made thereby. The method comprises providing an abrasive composition comprising a plurality of abrasive particles and a binder precursor. The binder precursor comprises a polymerizable material consisting essentially of an ethylenically unsaturated material having one or more terminal functional groups of the same type of reactive functionality, a photoinitiator, and a thermal initiator. The abrasive composition is then applied onto a backing. The method then comprises at least partially curing the binder precursor by activating the photoinitiator, and further curing the binder precursor by activating the thermal initiator to provide a three-dimensional fixed abrasive.Type: ApplicationFiled: March 28, 2001Publication date: January 23, 2003Inventors: Philip E. Kendall, Soon C. Park, Wesley J. Bruxvoort, Scott R. Culler, Jerry W. Williams
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Publication number: 20020106980Abstract: An abrasive article includes a fixed abrasive element, a resilient element, a rigid element disposed between the resilient element and the fixed abrasive element, and a plurality of microstructures disposed between the rigid element and the fixed abrasive element.Type: ApplicationFiled: February 7, 2001Publication date: August 8, 2002Applicant: 3M Innovative Properties CompanyInventor: Wesley J. Bruxvoort
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Publication number: 20020072296Abstract: A process for planarizing, polishing, or providing other modification of a wafer surface or other workpiece. The process includes using an abrasive article having a textured abrasive coating affixed to a backing. The abrasive article includes a monitoring element, such as a window, to allow transmission of radiation therethrough. The radiation level is monitored throughout the planarization process to determine the approach of the desired endpoint. The window in the abrasive coating can be an area devoid of abrasive coating or having minimal or a thinned abrasive coating.Type: ApplicationFiled: November 29, 2000Publication date: June 13, 2002Inventors: Michael J. Muilenburg, Chong-Yong J. Kim, Jerry J. Fizel, Richard J. Webb, John J. Gagliardi, Daniel B. Pendergrass, Robert J. Streifel, Wesley J. Bruxvoort
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Patent number: 6217984Abstract: An energy sensitive composition comprising a monomeric organometallic complex essentially free of nucleophilic groups and which, upon exposure to energy, bonds to basic reactive sites on a substrate via the metal center, leaving the polymerizable group of the complex unreacted and unrestricted; an energy sensitive composition at least one energy sensitive organometallic group is incorporated in or appended to the backbone of a polymer, such that the resulting coordinatively unsaturated organometallic group or groups bond to basic reactive sites on a substrate, thus forming permanent bonds, and further, the adherent compositions are useful in applications such as adhesion of polymers to substrates, protective coatings, printing plates, durable release coatings, primers, binders, and paints.Type: GrantFiled: May 21, 1992Date of Patent: April 17, 2001Assignee: 3M Innovative Properties CompanyInventors: Wesley J. Bruxvoort, Steven J. Keipert, Fred B. McCormick, Jerry W. Williams, Bradford B. Wright
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Patent number: 6132860Abstract: An energy sensitive composition comprising a monomeric organometallic complex essentially free of nucleophilic groups and which, upon exposure to energy, bonds to basic reactive sites on a substrate via the metal center, leaving the polymerizable group of the complex unreacted and unrestricted; an energy sensitive composition at least one energy sensitive organometallic group is incorporated in or appended to the backbone of a polymer, such that the resulting coordinatively unsaturated organometallic group or groups bond to basic reactive sites on a substrate, thus forming permanent bonds, and further, the adherent compositions are useful in applications such as adhesion of polymers to substrates, protective coatings, printing plates, durable release coatings, primers, binders, and paints.Type: GrantFiled: July 1, 1997Date of Patent: October 17, 2000Assignee: 3M Innovative Properties CompanyInventors: Wesley J. Bruxvoort, Steven J. Keipert, Fred B. McCormick, Jerry W. Williams, Bradford B. Wright
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Patent number: 6007407Abstract: An abrasive construction for modifying a surface of a workpiece, such as a semiconductor wafer. The abrasive construction comprises: a three-dimensional, textured, fixed abrasive element; at least one resilient element generally coextensive with the fixed abrasive element; and at least one rigid element generally coextensive with and interposed between the resilient element and the fixed abrasive element, wherein the rigid element has a Young's Modulus greater than that of the resilient element.Type: GrantFiled: August 20, 1997Date of Patent: December 28, 1999Assignees: Minnesota Mining and Manufacturing Company, Exclusive Design Company, Inc.Inventors: Denise R. Rutherford, Douglas P. Goetz, Cristina U. Thomas, Richard J. Webb, Wesley J. Bruxvoort, James D. Buhler, William J. Hollywood
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Patent number: 5958794Abstract: A method of modifying an exposed surface of a semiconductor wafer that includes the steps of:(a) contacting the surface with a fixed abrasive article having a three-dimensional textured abrasive surface that includes a plurality of abrasive particles and a binder in the form of a pre-determined pattern; and(b) relatively moving the wafer and the fixed abrasive article to modify said surface of the wafer.Type: GrantFiled: August 8, 1996Date of Patent: September 28, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: Wesley J. Bruxvoort, Scott R. Culler, Kwok-Lun Ho, David A. Kaisaki, Carl R. Kessel, Thomas P. Klun, Heather K. Kranz, Robert P. Messner, Richard J. Webb, Julia P. Williams
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Patent number: 5692950Abstract: An abrasive construction for modifying a surface of a workpiece, such as a semiconductor wafer. The abrasive construction comprises: a three-dimensional, textured, fixed abrasive element; at least one resilient element generally coextensive with the fixed abrasive element; and at least one rigid element generally coextensive with and interposed between the resilient element and the fixed abrasive element, wherein the rigid element has a Young's Modulus greater than that of the resilient element.Type: GrantFiled: August 8, 1996Date of Patent: December 2, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Denise R. Rutherford, Douglas P. Goetz, Cristina U. Thomas, Richard J. Webb, Wesley J. Bruxvoort, James D. Buhler, William J. Hollywood
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Patent number: 5549961Abstract: An abrasive article having a sheet-like structure having at least one major surface having deployed thereon a plurality of individual abrasive composites, each abrasive composite comprising a plasticizer and a plurality of abrasive particles dispersed in a binder, wherein said binder is formed by polymerizing a binder precursor and said plasticizer being combined with said binder precursor prior to said polymerizing in an amount of 30 to 70 parts plasticizer per 100 parts by weight of the combined binder precursor and plasticizer. There is also a method of using such as abrasive article to reduce the surface finish of a workpiece and a process of making the abrasive article.Type: GrantFiled: May 15, 1995Date of Patent: August 27, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: John D. Haas, Todd J. Christianson, Wesley J. Bruxvoort
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Patent number: 5453312Abstract: An abrasive article having a sheet-like structure having at least one major surface having deployed thereon a plurality of individual abrasive composites, each abrasive composite comprising a plasticizer and a plurality of abrasive particles dispersed in a binder, wherein said binder is formed by polymerizing a binder precursor and said plasticizer being combined with said binder precursor prior to said polymerizing in an amount of 30 to 70 parts plasticizer per 100 parts by weight of the combined binder precursor and plasticizer. There is also a method of using such as abrasive article to reduce the surface finish of a workpiece and a process of making the abrasive article.Type: GrantFiled: October 29, 1993Date of Patent: September 26, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: John D. Haas, Todd J. Christianson, Wesley J. Bruxvoort
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Patent number: 5251802Abstract: An abrasive article comprising a coated abrasive bonded to a substrate by means of a metallic adhesive and a method for producing the abrasive article by heating.Type: GrantFiled: June 12, 1992Date of Patent: October 12, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Wesley J. Bruxvoort, Robert N. Howard
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Patent number: 5219462Abstract: The present invention provides an abrasive article that has abrasive composite members secured firmly in recesses in a backing sheet in a precise pattern whereby there is desired lateral spacing between each abrasive composite member. The present invention also provides a method for preparing the abrasive article comprising the steps of providing an embossed backing sheet having a plurality of recesses in the front surface of the backing sheet. The recesses are filled with an abrasive slurry that includes a plurality of abrasive grains dispersed in a binder precursor. An expanding agent is also provided in the recesses, either separate from the slurry or dispersed in the slurry. The expanding agent, when activated, expands the abrasive slurry outward and above the front surface of the embossed backing sheet. After the binder precursor of the abrasive slurry is hardened, individual abrasive composite members extend above the front surface of the embossed backing sheet.Type: GrantFiled: January 13, 1992Date of Patent: June 15, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Wesley J. Bruxvoort, Clyde D. Calhoun, Richard J. Webb