Patents by Inventor Robert Bachrach

Robert Bachrach 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: 7959987
    Abstract: A method and apparatus for depositing a material layer to treat and condition a substrate, such as a fuel cell part, is described. The method includes depositing a hydrophilic material layer on a portion of the surface of the substrate in a process chamber from a mixture of precursors of the hydrophilic material layer. In addition, the method includes reducing a fluid contact angle of the substrate surface. The hydrophilic material layer comprises a wet etch rate of less than about 0.03 ?/min in the presence of about 10 ppm of hydrofluoric acid in water. The material layer can be used to condition various parts of a fuel cell useful in applications to generate electricity.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: June 14, 2011
    Assignee: Applied Materials, Inc.
    Inventors: Tae Kyung Won, Robert Bachrach, John M. White, Wendell T. Blonigan
  • Patent number: 7759158
    Abstract: A method and apparatus for fabricating large scale PV cell and solar module/panel is disclosed. The method includes designing a PV cell wiring scheme for a number of PV cells and patterning a plurality of features on a large size silicon sheet. A number of large scale silicon sheets, having a number of PV cells on each silicon sheet, can be bonded to a wiring plane to directly manufacture into a solar module/panel. Each PV cell on the solar module is then isolated. Methods of the invention greatly cut down the cost of solar module/panel manufacturing and PV cell assembly.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: July 20, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Robert Bachrach, Wendell T. Blonigan
  • Patent number: 7736928
    Abstract: Embodiments of the invention contemplate the formation of a low cost solar cell using a novel electroplating apparatus and method to form a metal contact structure having metal lines formed using an electrochemical plating process. The apparatus and methods described herein remove the need to perform the often costly processing steps of performing a mask preparation and formation steps, such as screen printing, lithographic steps and inkjet printing steps, to form a contact structure. The resistance of interconnects formed in a solar cell device greatly affects the efficiency of the solar cell. It is thus desirable to form a solar cell device that has a low resistance connection that is reliable and cost effective. Therefore, one or more embodiments of the invention described herein are adapted to form a low cost and reliable interconnecting layer using an electrochemical plating process containing a common metal, such as copper.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: June 15, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Sergey Lopatin, John O. Dukovic, David Eaglesham, Nicolay Y. Kovarsky, Robert Bachrach, John Busch, Charles Gay
  • Publication number: 20080132082
    Abstract: Embodiments of the invention contemplate the formation of a low cost solar cell using a novel electroplating apparatus and method to form a metal contact structure having metal lines formed using an electrochemical plating process. The apparatus and methods described herein remove the need to perform the often costly processing steps of performing a mask preparation and formation steps, such as screen printing, lithographic steps and inkjet printing steps, to form a contact structure. The resistance of interconnects formed in a solar cell device greatly affects the efficiency of the solar cell. It is thus desirable to form a solar cell device that has a low resistance connection that is reliable and cost effective. Therefore, one or more embodiments of the invention described herein are adapted to form a low cost and reliable interconnecting layer using an electrochemical plating process containing a common metal, such as copper.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 5, 2008
    Inventors: Sergey Lopatin, John O. Dukovic, David Eaglesham, Nicolay Y. Kovarsky, Robert Bachrach, John Busch, Charles Gay
  • Publication number: 20080057220
    Abstract: A method and apparatus for fabricating a solar cell and forming a p-n junction is disclosed. Solar cell p-n junction is formed by depositing a thin film of n-type phosphorus doped silicon material on a sheet from a mixture of precursors and annealing the sheet to obtain the p-n junction at a desired depth. In one embodiment, a plasma enhanced chemical vapor deposition chambers is used to deposit a phosphorus doped amorphous silicon film on a sheet surface by using precursors including a silicon-containing gas, a hydrogen-containing precursor, and a phosphorus-containing gas. In another embodiment, annealing furnace and/or rapid thermal processing chambers are used to anneal the sheet having the phosphorus doped amorphous silicon film deposited thereon.
    Type: Application
    Filed: January 31, 2006
    Publication date: March 6, 2008
    Inventors: Robert Bachrach, Tae Kyung Won
  • Publication number: 20070243048
    Abstract: An improved apparatus and method is provided for storing semiconductor wafer carriers, and for loading wafers or wafer carriers to a fabrication tool. The apparatus preferably provides an elevated port for receipt of wafer carriers from an overhead factory transport, allows for local interconnection among a plurality of the inventive apparatuses, and enables independent loading of the factory load port and the tool load port. An inventive wafer handling method which divides a lot of wafers into sublots and distributes the sublots among tools configured to perform the same process is also provided.
    Type: Application
    Filed: June 18, 2007
    Publication date: October 18, 2007
    Inventor: Robert Bachrach
  • Publication number: 20070148336
    Abstract: A method and apparatus for fabricating a solar cell and forming metal contact is disclosed. Solar cell contact and wiring is formed by depositing a thin film stack of a first metal material and a second metal material as an initiation layer or seed layer for depositing a bulk metal layer in conjunction with additional sheet processing, photolithography, etching, cleaning, and annealing processes. In one embodiment, the thin film stack for forming metal silicide with reduced contact resistance over the sheet is deposited by sputtering or physical vapor deposition. In another embodiment, the bulk metal layer for forming metal lines and wiring is deposited by sputtering or physical vapor deposition. In an alternative embodiment, electroplating or electroless deposition is used to deposit the bulk metal layer.
    Type: Application
    Filed: November 6, 2006
    Publication date: June 28, 2007
    Inventors: Robert Bachrach, Quanyuan Shang, Yan Ye
  • Publication number: 20070102283
    Abstract: A method for conditioning a surface of a substrate, particularly substrates useful in a fuel cell, is disclosed. In one aspect, a method is disclosed for treating a substrate to increase the substrate's resistance to acid etching. The method includes depositing a layer of etch-resistant material via a PVD process onto a surface of the substrate. The substrate may comprise a carbon composite material or a conductive polymer, among others. In one aspect, the layer of etch-resistant material is about 1000 ? thick or less. In another aspect, the layer of etch-resistant material is a TiN layer. In another embodiment, a method is provided for treating a surface of a substrate decrease the substrate's liquid contact angle. The method includes depositing a layer of hydrophilic material via a PVD process onto a surface of the substrate. In one aspect, the deposited material may be a low resistivity material.
    Type: Application
    Filed: November 10, 2005
    Publication date: May 10, 2007
    Inventors: Tae Won, Robert Bachrach, John White, Wendell Blonigan
  • Publication number: 20070024664
    Abstract: A system for concurrent inkjet printing and defect inspection is provided. The system includes at least one print head adapted to deposit ink on a substrate, at least one imaging device adapted to scan the substrate, and a controller adapted to receive image data scanned by the imaging device during printing, determine if there are any printing defects on the substrate utilizing the processed image data, and transmit a control signal indicating a disposition of the substrate. The imaging device is adapted to scan the substrate during each print pass. Numerous other aspects are also disclosed.
    Type: Application
    Filed: July 25, 2006
    Publication date: February 1, 2007
    Applicant: Applied Materials, Inc.
    Inventors: Quanyuan Shang, Robert Bachrach
  • Publication number: 20060213548
    Abstract: A method and apparatus for fabricating large scale PV cell and solar module/panel is disclosed. The method includes designing a PV cell wiring scheme for a number of PV cells and patterning a plurality of features on a large size silicon sheet. A number of large scale silicon sheets, having a number of PV cells on each silicon sheet, can be bonded to a wiring plane to directly manufacture into a solar module/panel. Each PV cell on the solar module is then isolated. Methods of the invention greatly cut down the cost of solar module/panel manufacturing and PV cell assembly.
    Type: Application
    Filed: March 3, 2006
    Publication date: September 28, 2006
    Inventors: Robert Bachrach, Wendell Blonigan
  • Publication number: 20060134496
    Abstract: A method and apparatus for depositing a material layer to treat and condition a substrate, such as a fuel cell part, is described. The method includes depositing a hydrophilic material layer on a portion of the surface of the substrate in a process chamber from a mixture of precursors of the hydrophilic material layer. In addition, the method includes reducing a fluid contact angle of the substrate surface. The hydrophilic material layer comprises a wet etch rate of less than about 0.03 ?/min in the presence of about 10 ppm of hydrofluoric acid in water. The material layer can be used to condition various parts of a fuel cell useful in applications to generate electricity.
    Type: Application
    Filed: November 30, 2005
    Publication date: June 22, 2006
    Inventors: Tae Won, Robert Bachrach, John White, Wendall Blonigan
  • Patent number: 6818529
    Abstract: A silicon on insulator substrate apparatus for fabricating an active-matrix liquid crystal display is described herein. The silicon on insulator substrate may include a handle substrate and a plurality of crystalline silicon donor portions bonded to the handle substrate. The crystalline silicon donor portions may be bonded to the handle substrate by providing a plurality of donor substrates and forming a separation layer within each donor substrate. The donor substrates may be arranged across a surface of the handle substrate and subsequently bonded to the handle substrate. The donor substrates may then be cleaved at their respective separation layers and removed from the handle substrate, thereby leaving a donor portion of each donor substrate attached the handle substrate.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: November 16, 2004
    Assignee: Applied Materials, Inc.
    Inventors: Robert Bachrach, Kam Law
  • Publication number: 20040056332
    Abstract: A silicon on insulator substrate apparatus for fabricating an active-matrix liquid crystal display is described herein. The silicon on insulator substrate may include a handle substrate and a plurality of crystalline silicon donor portions bonded to the handle substrate. The crystalline silicon donor portions may be bonded to the handle substrate by providing a plurality of donor substrates and forming a separation layer within each donor substrate. The donor substrates may be arranged across a surface of the handle substrate and subsequently bonded to the handle substrate. The donor substrates may then be cleaved at their respective separation layers and removed from the handle substrate, thereby leaving a donor portion of each donor substrate attached the handle substrate.
    Type: Application
    Filed: September 12, 2002
    Publication date: March 25, 2004
    Applicant: Applied Materials, Inc.
    Inventors: Robert Bachrach, Kam Law