Patents by Inventor Ljubomir Kaludjercic

Ljubomir Kaludjercic 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: 9627244
    Abstract: Apparatuses and methods for supporting a workpiece such as a semiconductor wafer. A support system is configured to support the workpiece while allowing thermally-induced motion of the workpiece, which may include thermal bowing or thermal bending. The system may include a support member having a moveable engagement portion engageable with the workpiece, the engagement portion being moveable to allow the thermally-induced motion of the workpiece while supporting the workpiece. The moveable engagement portion may include a plurality of moveable engagement portions of a plurality of respective support members, which may be resiliently engageable with the workpiece. The support members may include flexible support members each having an unconstrained portion and a constrained portion, and the moveable engagement portions may include the unconstrained portions.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: April 18, 2017
    Assignee: Mattson Technology, Inc.
    Inventors: David Malcolm Camm, Guillaume Sempere, Ljubomir Kaludjercic, Gregory Stuart, Mladen Bumbulovic, Tim Tran, Sergiy Dets, Tony Komasa, Marc Rudolph, Joseph Cibere
  • Patent number: 9482468
    Abstract: A first heat-treating method involves monitoring at least one thermal efficiency parameter associated with an irradiance system configured to produce an irradiance flash incident on a surface of a workpiece, and automatically updating control information used by the irradiance system to produce the irradiance flash, in response to the monitoring of the thermal efficiency parameter. A second method involves predicting a heating effect of an irradiance flash to be incident upon a surface of a workpiece, in response to a measurement of a heating parameter of the surface, and pre-adjusting the irradiance flash, in response to the predicted heating effect. A third method involves measuring a temperature of a surface of a workpiece during an initial portion of an irradiance flash incident on the surface, and controlling a power of a remaining portion of the irradiance flash, in response to the temperature.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: November 1, 2016
    Assignee: Mattson Technology, Inc.
    Inventors: David Malcolm Camm, Sergiy Dets, Kevin McDonnell, Greg Stuart, Tilman Thrum, Igor Rudic, Ljubomir Kaludjercic
  • Patent number: 8434341
    Abstract: An apparatus for supporting a semiconductor workpiece includes a heating system configured to cause thermally-induced motion of the semiconductor workpiece by heating a surface of the workpiece relative to a bulk of the workpiece. The thermally-induced motion includes vertical motion of an outer edge region of the workpiece and a center of the workpiece relative to each other. The apparatus further includes a support system configured to allow the thermally-induced motion including the vertical motion of the outer edge region of the workpiece and the center of the workpiece relative to each other while supporting the workpiece.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: May 7, 2013
    Assignee: Mattson Technology, Inc.
    Inventors: David Malcolm Camm, Guillaume Sempere, Ljubomir Kaludjercic, Gregory Stuart, Mladen Bumbulovic, Tim Tran, Sergiy Dets, Tony Komasa, Marc Rudolph, Joseph Cibere
  • Publication number: 20120118867
    Abstract: An apparatus for supporting a semiconductor workpiece includes a heating system configured to cause thermally-induced motion of the semiconductor workpiece by heating a surface of the workpiece relative to a bulk of the workpiece. The thermally-induced motion includes vertical motion of an outer edge region of the workpiece and a center of the workpiece relative to each other. The apparatus further includes a support system configured to allow the thermally-induced motion including the vertical motion of the outer edge region of the workpiece and the center of the workpiece relative to each other while supporting the workpiece.
    Type: Application
    Filed: January 27, 2012
    Publication date: May 17, 2012
    Applicant: Mattson Technology Canada, Inc.
    Inventors: David Malcolm Camm, Guillaume Sempere, Ljubomir Kaludjercic, Gregory Stuart, Mladen Bumbulovic, Tim Tran, Sergiy Dets, Tony Komasa, Marc Rudolph, Joseph Cibere
  • Publication number: 20070069161
    Abstract: A first heat-treating method involves monitoring at least one thermal efficiency parameter associated with an irradiance system configured to produce an irradiance flash incident on a surface of a workpiece, and automatically updating control information used by the irradiance system to produce the irradiance flash, in response to the monitoring of the thermal efficiency parameter. A second method involves predicting a heating effect of an irradiance flash to be incident upon a surface of a workpiece, in response to a measurement of a heating parameter of the surface, and pre-adjusting the irradiance flash, in response to the predicted heating effect. A third method involves measuring a temperature of a surface of a workpiece during an initial portion of an irradiance flash incident on the surface, and controlling a power of a remaining portion of the irradiance flash, in response to the temperature.
    Type: Application
    Filed: September 14, 2006
    Publication date: March 29, 2007
    Inventors: David Camm, Sergiy Dets, Kevin McDonnell, Greg Stuart, Tilman Thrum, Igor Rudic, Ljubomir Kaludjercic
  • Publication number: 20040178553
    Abstract: Apparatuses and methods for supporting a workpiece such as a semiconductor wafer. A support system is configured to support the workpiece while allowing thermally-induced motion of the workpiece, which may include thermal bowing or thermal bending. The system may include a support member having a moveable engagement portion engageable with the workpiece, the engagement portion being moveable to allow the thermally-induced motion of the workpiece while supporting the workpiece. The moveable engagement portion may include a plurality of moveable engagement portions of a plurality of respective support members, which may be resiliently engageable with the workpiece. The support members may include flexible support members each having an unconstrained portion and a constrained portion, and the moveable engagement portions may include the unconstrained portions.
    Type: Application
    Filed: December 19, 2003
    Publication date: September 16, 2004
    Inventors: David Malcolm Camm, Guillaume Sempere, Ljubomir Kaludjercic, Gregory Stuart, Mladen Bumbulovic, Tim Tran, Sergiy Dets, Tony Komasa, Marc Rudolph, Joseph Cibere