Patents by Inventor James Aloysius Hagan

James Aloysius Hagan 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).

  • Patent number: 7510463
    Abstract: The present invention is an apparatus and method for extending the life of abrasive disks used in the conditioning of polishing pads used in chemical mechanical planarization (CMP) of polishing pads used to polish and/or planarize the surfaces of semiconductor wafers during the production of integrated circuits. The invention consists of the a disk comprising a plurality of abrasive segments, each of which is fixed in tangential and radial relationship to one another about the common axis of rotation of the conditioning disk. Means are provided for movement of the abrasive segments, individually or in sets, into or out of the plane of the active abrasive surface of the conditioning disk according to the present invention.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: March 31, 2009
    Assignee: International Business Machines Corporation
    Inventors: Ben Kim, Manoj Balachandran, James Aloysius Hagan, Deoram Persaud, Adam Daniel Ticknor, Wei-tsu Tseng
  • Publication number: 20070287367
    Abstract: The present invention is an apparatus and method for extending the life of abrasive disks used in the conditioning of polishing pads used in chemical mechanical planarization (CMP) of polishing pads used to polish and/or planarize the surfaces of semiconductor wafers during the production of integrated circuits. The invention consists of the a disk comprising a plurality of abrasive segments, each of which is fixed in tangential and radial relationship to one another about the common axis of rotation of the conditioning disk. Means are provided for movement of the abrasive segments, individually or in sets, into or out of the plane of the active abrasive surface of the conditioning disk according to the present invention.
    Type: Application
    Filed: June 7, 2006
    Publication date: December 13, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ben Kim, Manoj Balachandran, James Aloysius Hagan, Deoram Persaud, Adam Daniel Ticknor, Wei-tsu Tseng
  • Patent number: 6801396
    Abstract: The present invention utilizes a combination of chemical and mechanical finishing processes to polish a disk substrate surface to near atomic smoothness. Broadly speaking, the surface of a disk substrate that has been machined (i.e., rough ground) to a predetermined surface roughness is subjected to attack by a chemical formulation (called an attacking agent). The chemical formulation is used to soften the substrate material. Then, the softened material is “wiped away” via mechanical action.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: October 5, 2004
    Assignee: Hitachi Global Storage Technologies Netherlands B.B.
    Inventors: Brent Ray Den Hartog, Dennis Leonard Fox, James Aloysius Hagan, John Chen Shen, Kannimangalam Venkatasubramanyam Viswanathan
  • Patent number: 6236542
    Abstract: The present invention utilizes a combination of chemical and mechanical finishing processes to polish a disk substrate surface to near atomic smoothness. Broadly speaking, the surface of a disk substrate that has been machined (i.e., rough ground) to a predetermined surface roughness is subjected to attack by a chemical formulation (called an attacking agent). The chemical formulation is used to soften the substrate material. Then, the softened material is “wiped away” via mechanical action.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: May 22, 2001
    Assignee: International Business Machines Corporation
    Inventors: Brent Ray Den Hartog, Dennis Leonard Fox, James Aloysius Hagan, John Chen Shen, Kannimangalam Venkatasubramanyam Viswanathan
  • Patent number: 6183828
    Abstract: The invention is a method of plating a nonmetallic substrate comprising the steps of depositing an adhesion enhancing film on the substrate, treating the adhesion enhancing film to make the film catalytic, and forming an outer coating and passivating plate on the adhesion enhancing film. The resulting plated, nonmetallic substrates may comprise any number of materials used as an inner substrate such as compounds of oxide, nitride, phosphide, carbide, glass, ceramic, and mixtures thereof. In use, the resulting substrate may find application in any number of data storage and retrieval application.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: February 6, 2001
    Assignee: International Business Machines Corporation
    Inventors: Steven Francis Starcke, John David Amundson, Douglas Howard Piltingsrud, James Aloysius Hagan
  • Patent number: 5871810
    Abstract: The invention is a method of plating a nonmetallic substrate comprising the steps of depositing an adhesion enhancing film on the substrate, treating the adhesion enhancing film to make the film catalytic, and forming an outer coating and passivating plate on the adhesion enhancing film. The resulting plated, nonmetallic substrates may comprise any number of materials used as an inner substrate such as compounds of oxide, nitride, phosphide, carbide, glass, ceramic, and mixtures thereof. In use, the resulting substrate may find application in any number of data storage and retrieval application.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 16, 1999
    Assignee: International Business Machines Corporation
    Inventors: Steven Francis Starcke, John David Amundson, Douglas Howard Piltingsrud, James Aloysius Hagan