Patents by Inventor Leena Buchwalter

Leena Buchwalter 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).

  • Publication number: 20080036084
    Abstract: A laser release and glass chip removal process for a integrated circuit module avoiding carrier edge cracking is provided.
    Type: Application
    Filed: January 30, 2006
    Publication date: February 14, 2008
    Applicant: International Business Machines Corporation
    Inventors: Leena Buchwalter, Paul Andry, Matthew Farinelli, Sherif Goma, Raymond Horton, Edmund Sprogis
  • Publication number: 20080029889
    Abstract: A method of producing flexible interconnections for integrated circuits, and, in particular, the forming of flexible or compliant interconnections preferably by a laser-assisted chemical vapor deposition process in semiconductor or glass substrate-based carriers which are employed for mounting and packaging multiple integrated circuit chips and selectively, other devices in the technology.
    Type: Application
    Filed: October 15, 2007
    Publication date: February 7, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Leena Buchwalter, Russell Budd, Chirag Patel
  • Publication number: 20070222065
    Abstract: An electronic dive and method of fabricating an electronic device. The method including placing a placement guide over a top surface of a module substrate, the placement guide having a guide opening, the guide opening extending from a top surface of the placement guide to a bottom surface of the placement guide; aligning the placement guide to an integrated circuit chip position on the module substrate; fixing the placement guide to the module substrate; placing an integrated circuit chip in the guide opening, sidewalls of the placement guide opening constraining electrically conductive bonding structures on bottom surface of the integrated circuit chip to self-align to an electrically conductive module substrate contact pad on the top surface of the module substrate in the integrated circuit chip position; and bonding the bonding structures to the module substrate contact pads, the bonding structures and the module substrate contact pads in direct physical and electrical contact after the bonding.
    Type: Application
    Filed: March 21, 2006
    Publication date: September 27, 2007
    Applicant: International Business Machines Corporation
    Inventors: Paul Andry, Leena Buchwalter, Raymond Horton, John Knickerbocker, Cornelia Tsang, Steven Wright
  • Publication number: 20060255480
    Abstract: Sealing a via using a soventless, low viscosity, high temperature stable polymer or a high solids content polymer solution of low viscosity, where the polymeric material is impregnated within the via at an elevated temperature. A supply chamber is introduced to administer the polymeric material at an elevated temperature, typically at a temperature high enough to liquefy the polymeric material. The polymeric material is introduced through heated supply lines under force from a pump, piston, or a vacuum held within said supply chamber.
    Type: Application
    Filed: May 13, 2005
    Publication date: November 16, 2006
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jon Casey, Michael Berger, Leena Buchwalter, Donald Canaperi, Raymond Horton, Anurag Jain, Eric Perfecto, James Tornello
  • Publication number: 20060186540
    Abstract: A method of producing flexible interconnections for integrated circuits, and, in particular, the forming of flexible or compliant interconnections preferably by a laser-assisted chemical vapor deposition process in semiconductor or glass substrate-based carriers which are employed for mounting and packaging multiple integrated circuit chips and selectively, other devices in the technology.
    Type: Application
    Filed: February 23, 2005
    Publication date: August 24, 2006
    Applicant: International Business Machines Corporation
    Inventors: Leena Buchwalter, Russell Budd, Chirag Patel
  • Publication number: 20060177568
    Abstract: The present disclosure relates generally to semiconductor, integrated circuits, and particularly, but not by way of limitation, to centrifugal methods of filling high-aspect ratio vias and trenches with powders, pastes, suspensions of materials to act as any of a conducting, structural support, or protective member of an electronic component.
    Type: Application
    Filed: February 4, 2005
    Publication date: August 10, 2006
    Applicant: International Business Machines Corporation
    Inventors: Gareth Hougham, Leena Buchwalter, Stephen Buchwalter, Jon Casey, Claudius Feger, Matteo Flotta, Jeffrey Gelorme, Kathleen Hinge, Anurag Jain, Sung Kang, John Knickerbocker
  • Publication number: 20060027934
    Abstract: A carrier structure and method for fabricating a carrier structure with through-vias each having a conductive structure with an effective coefficient of thermal expansion which is less than or closely matched to that of the substrate, and having an effective elastic modulus value which is less than or closely matches that of the substrate. The conductive structure may include concentric via fill areas having differing materials disposed concentrically therein, a core of the substrate material surrounded by an annular ring of conductive material, a core of CTE-matched non-conductive material surrounded by an annular ring of conductive material, a conductive via having an inner void with low CTE, or a full fill of a conductive composite material such as a metal-ceramic paste which has been sintered or fused.
    Type: Application
    Filed: October 3, 2005
    Publication date: February 9, 2006
    Inventors: Daniel Edelstein, Paul Andry, Leena Buchwalter, Jon Casey, Sherif Goma, Raymond Horton, Gareth Hougham, Michael Lane, Xiao Liu, Chirag Patel, Edmund Sprogis, Michelle Steen, Brian Sundlof, Cornelia Tsang, George Walker, Yu-Ting Cheng, Kenneth Ocheltree, Robert Montoye
  • Publication number: 20050168947
    Abstract: The invention is directed to structure and methods of improving the cooling capacity of chip packaging modules. The chip packaging module has a substrate with thin-film wiring on one side and grooves or channels etched on one or both sides where coolant pumps are embedded. The coolant pumps are used to enhance the liquid flowing inside the module. The coolant flows through the chips within the vias in the chips or around the chips when the chips do not have vias. Both cooling modes, single or two-phase modes can be adopted in the module.
    Type: Application
    Filed: December 11, 2003
    Publication date: August 4, 2005
    Inventors: Lawrence Mok, Leena Buchwalter, Stephen Buchwalter
  • Publication number: 20050121768
    Abstract: A carrier structure and method for fabricating a carrier structure with through-vias each having a conductive structure with an effective coefficient of thermal expansion which is less than or closely matched to that of the substrate, and having an effective elastic modulus value which is less than or closely matches that of the substrate. The conductive structure may include concentric via fill areas having differing materials disposed concentrically therein, a core of the substrate material surrounded by an annular ring of conductive material, a core of CTE-matched non-conductive material surrounded by an annular ring of conductive material, a conductive via having an inner void with low CTE, or a full fill of a conductive composite material such as a metal-ceramic paste which has been sintered or fused.
    Type: Application
    Filed: December 5, 2003
    Publication date: June 9, 2005
    Applicant: International Business Machines Corporation
    Inventors: Daniel Edelstein, Paul Andry, Leena Buchwalter, Jon Casey, Sherif Goma, Raymond Horton, Gareth Hougham, Michael Lane, Xiao Liu, Chirag Patel, Edmund Sprogis, Michelle Steen, Brian Sundlof, Cornelia Tsang, George Walker
  • Publication number: 20050082676
    Abstract: This disclosure teaches a method of filling deep vias or capping deep conducting paste filled vias in silicon or glass substrate using laser assisted chemical vapor deposition of metals. This method uses a continuous wave or pulsed laser to heat the via bottom and the growing metal fill selectively by selecting the laser wavelength such that silicon and/or glass do not absorb the energy of the laser in any appreciable manner to cause deposition in the field. Alternatively holographic mask or an array of micro lenses may be used to focus the laser beams to the vias to fill them with metal. The substrate is moved in a controlled manner in the z-direction away from the laser at about the rate of deposition thus causing the laser heating to be focused on the surface region of the growing metal fill.
    Type: Application
    Filed: October 17, 2003
    Publication date: April 21, 2005
    Applicant: International Business Machines Corporation
    Inventors: Paul Andry, Leena Buchwalter, Russell Budd, Thomas Wassick