Patents by Inventor Nety M. Krishna

Nety M. Krishna 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: 9905723
    Abstract: The present disclosure generally provides a method for forming a photovoltaic device including evaporating a source material to form a large molecule processing gas and flowing the large molecule processing gas through a gas distribution showerhead and into a processing area of a processing chamber having a substrate therein. The method includes generating a small molecule processing gas, and reacting the small molecule processing gas with a film already deposited on a substrate surface to form a semiconductor film. Additionally, apparatuses that may use the methods are also provided to enable continuous inline CIGS type solar cell formation.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: February 27, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Byung-sung Kwak, Kaushal K. Singh, Stefan Bangert, Nety M. Krishna
  • Publication number: 20170005221
    Abstract: The present disclosure generally provides a method for forming a photovoltaic device including evaporating a source material to form a large molecule processing gas and flowing the large molecule processing gas through a gas distribution showerhead and into a processing area of a processing chamber having a substrate therein. The method includes generating a small molecule processing gas, and reacting the small molecule processing gas with a film already deposited on a substrate surface to form a semiconductor film. Additionally, apparatuses that may use the methods are also provided to enable continuous inline CIGS type solar cell formation.
    Type: Application
    Filed: September 16, 2016
    Publication date: January 5, 2017
    Inventors: Byung-sung KWAK, Kaushal K. SINGH, Stefan BANGERT, Nety M. KRISHNA
  • Patent number: 9450135
    Abstract: The present invention generally provides a method for forming a photovoltaic device including evaporating a source material to form a large molecule processing gas and flowing the large molecule processing gas through a gas distribution showerhead and into a processing area of a processing chamber having a substrate therein. The method includes generating a small molecule processing gas, and reacting the small molecule processing gas with a film already deposited on a substrate surface to form a semiconductor film. Additionally, apparatuses that may use the methods are also provided to enable continuous inline CIGS type solar cell formation.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: September 20, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Byung-sung Kwak, Kaushal K. Singh, Stefan Bangert, Nety M. Krishna
  • Patent number: 9263078
    Abstract: A method for patterning a magnetic thin film on a substrate includes: providing a pattern about the magnetic thin film, with selective regions of the pattern permitting penetration of energized ions of one or more elements. Energized ions are generated with sufficient energy to penetrate selective regions and a portion of the magnetic thin film adjacent the selective regions. The substrate is placed to receive the energized ions. The portions of the magnetic thin film are rendered to exhibit a magnetic property different than selective other portions. A method for patterning a magnetic media with a magnetic thin film on both sides of the media is also disclosed.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: February 16, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Steven Verhaverbeke, Omkaram Nalamasu, Majeed A. Foad, Mahalingam Venkatesan, Nety M. Krishna
  • Publication number: 20140287550
    Abstract: The present invention generally provides a method for forming a photovoltaic device including evaporating a source material to form a large molecule processing gas and flowing the large molecule processing gas through a gas distribution showerhead and into a processing area of a processing chamber having a substrate therein. The method includes generating a small molecule processing gas, and reacting the small molecule processing gas with a film already deposited on a substrate surface to form a semiconductor film. Additionally, apparatuses that may use the methods are also provided to enable continuous inline CIGS type solar cell formation.
    Type: Application
    Filed: June 3, 2014
    Publication date: September 25, 2014
    Inventors: Byung-sung KWAK, Kaushal K. SINGH, Stefan BANGERT, Nety M. KRISHNA
  • Publication number: 20140083363
    Abstract: A method for patterning a magnetic thin film on a substrate includes: providing a pattern about the magnetic thin film, with selective regions of the pattern permitting penetration of energized ions of one or more elements. Energized ions are generated with sufficient energy to penetrate selective regions and a portion of the magnetic thin film adjacent the selective regions. The substrate is placed to receive the energized ions. The portion of the magnetic thin film is subjected to thermal excitation. The portions of the magnetic thin film are rendered to exhibit a magnetic property different than selective other portions. A method for patterning a magnetic media with a magnetic thin film on both sides of the media is also disclosed.
    Type: Application
    Filed: October 7, 2013
    Publication date: March 27, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Omkaram NALAMASU, Steven VERHAVERBEKE, Majeed A. FOAD, Mahalingam VENKATESAN, Nety M. KRISHNA
  • Publication number: 20140072699
    Abstract: Thin-film battery methods for complexity reduction are described. Processing equipment arrangements suitable to support thin-film battery methods for complexity reduction are also described. Cluster tools to support thin-film battery methods for complexity reduction are also described.
    Type: Application
    Filed: November 12, 2013
    Publication date: March 13, 2014
    Inventors: Byung Sung Kwak, Nety M. Krishna
  • Publication number: 20140017518
    Abstract: A method for patterning a magnetic thin film on a substrate includes: providing a pattern about the magnetic thin film, with selective regions of the pattern permitting penetration of energized ions of one or more elements. Energized ions are generated with sufficient energy to penetrate selective regions and a portion of the magnetic thin film adjacent the selective regions. The substrate is placed to receive the energized ions. The portions of the magnetic thin film are rendered to exhibit a magnetic property different than selective other portions. A method for patterning a magnetic media with a magnetic thin film on both sides of the media is also disclosed.
    Type: Application
    Filed: September 17, 2013
    Publication date: January 16, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Steven VERHAVERBEKE, Omkaram NALAMASU, Majeed A. FOAD, Mahalingam VENKATESAN, Nety M. KRISHNA
  • Patent number: 8580332
    Abstract: Thin-film battery methods for complexity reduction are described. Processing equipment arrangements suitable to support thin-film battery methods for complexity reduction are also described. Cluster tools to support thin-film battery methods for complexity reduction are also described.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: November 12, 2013
    Assignee: Applied Materials, Inc.
    Inventors: Byung-Sung Kwak, Nety M. Krishna
  • Patent number: 8551578
    Abstract: A method for patterning a magnetic thin film on a substrate includes: providing a pattern about the magnetic thin film, with selective regions of the pattern permitting penetration of energized ions of one or more elements. Energized ions are generated with sufficient energy to penetrate selective regions and a portion of the magnetic thin film adjacent the selective regions. The substrate is placed to receive the energized ions. The portion of the magnetic thin film is subjected to thermal excitation. The portions of the magnetic thin film are rendered to exhibit a magnetic property different than selective other portions. A method for patterning a magnetic media with a magnetic thin film on both sides of the media is also disclosed.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: October 8, 2013
    Assignee: Applied Materials, Inc.
    Inventors: Omkaram Nalamasu, Steven Verhaverbeke, Majeed Foad, Mahalingam Venkatesan, Nety M. Krishna
  • Patent number: 8535766
    Abstract: A method for patterning a magnetic thin film on a substrate includes: providing a pattern about the magnetic thin film, with selective regions of the pattern permitting penetration of energized ions of one or more elements. Energized ions are generated with sufficient energy to penetrate selective regions and a portion of the magnetic thin film adjacent the selective regions. The substrate is placed to receive the energized ions. The portions of the magnetic thin film are rendered to exhibit a magnetic property different than selective other portions. A method for patterning a magnetic media with a magnetic thin film on both sides of the media is also disclosed.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: September 17, 2013
    Assignee: Applied Materials, Inc.
    Inventors: Steven Verhaverbeke, Omkaram Nalamasu, Majeed Foad, Mahalingam Venkatesan, Nety M. Krishna
  • Patent number: 8283199
    Abstract: Embodiments of the present invention generally provide methods for forming conductive structures on the surfaces of a solar cell. In one embodiment, conductive structures are formed on the front surface of a solar cell by depositing a sacrificial polymer layer, forming patterned lines in the sacrificial polymer via a fluid jet, depositing metal layers over the front surface of the solar cell, and performing lift off of the metal layers deposited over the sacrificial polymer by dissolving the sacrificial polymer with a water based solvent.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: October 9, 2012
    Assignee: Applied Materials, Inc.
    Inventors: Virendra V. S. Rana, Chris Eberspacher, Karl J. Armstrong, Nety M. Krishna
  • Publication number: 20120214047
    Abstract: Concepts and methods are provided to reduce the cost and complexity of thin film battery (TFB) high volume manufacturing by eliminating and/or minimizing the use of conventional physical (shadow) masks. Laser scribing and other alternative physical maskless patterning techniques meet certain or all of the patterning requirements. In one embodiment, a method of manufacturing thin film batteries comprises providing a substrate, depositing layers corresponding to a thin film battery structure on the substrate, the layers including, in order of deposition, a cathode, an electrolyte and an anode, wherein at least one of the deposited layers is unpatterned by a physical mask during deposition, depositing a protective coating, and scribing the layers and the protective coating. Further, the edges of the layers may be covered by an encapsulation layer. Furthermore, the layers may be deposited on two substrates and then laminated to form the thin film battery.
    Type: Application
    Filed: May 1, 2012
    Publication date: August 23, 2012
    Applicants: Motorola Mobility, Inc., Applied Materials, Inc.
    Inventors: BYUNG SUNG KWAK, Nety M. Krishna, Kurt Eisenbeiser, William J. Dauksher, Jon Candelaria
  • Patent number: 8218224
    Abstract: A method of manufacturing electrically tintable window glass with a variety of sizes and functionalities is described. The method comprises: (a) providing a large format glass substrate; (b) fabricating a plurality of electrically tintable thin film devices on the large format glass substrate; (c) cutting the large format glass substrate into a plurality of electrically tintable pieces, each electrically tintable piece including one of the plurality of electrically tintable thin film devices; (d) providing a plurality of window glass pieces; (e) matching each one of the plurality of electrically tintable pieces with a corresponding one of the plurality of window glass pieces; and (f) laminating each of the matched electrically tintable pieces and window glass pieces. The lamination may result in the electrically tintable device either being sandwiched between the glass substrate and the window glass piece or on the surface of the laminated pieces. The electrically tintable device is an electrochromic device.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: July 10, 2012
    Assignee: Applied Materials, Inc.
    Inventors: Byung-Sung Leo Kwak, Dieter Haas, Stefan Bangert, Nety M. Krishna, Winfried Hoffmann
  • Patent number: 8168318
    Abstract: Concepts and methods are provided to reduce the cost and complexity of thin film battery (TFB) high volume manufacturing by eliminating and/or minimizing the use of conventional physical (shadow) masks. Laser scribing and other alternative physical maskless patterning techniques meet certain or all of the patterning requirements. In one embodiment, a method of manufacturing thin film batteries comprises providing a substrate, depositing layers corresponding to a thin film battery structure on the substrate, the layers including, in order of deposition, a cathode, an electrolyte and an anode, wherein at least one of the deposited layers is unpatterned by a physical mask during deposition, depositing a protective coating, and scribing the layers and the protective coating. Further, the edges of the layers may be covered by an encapsulation layer. Furthermore, the layers may be deposited on two substrates and then laminated to form the thin film battery.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: May 1, 2012
    Assignees: Applied Materials, Inc., Motorola Mobility, Inc.
    Inventors: Byung Sung Kwak, Nety M. Krishna, Kurt Eisenbeiser, William J. Dauksher, Jon Candelaria
  • Patent number: 8083859
    Abstract: The invention relates to a cleaning method in which from a vacuum coating chamber (3) of a coating installation (1) for the coating of substrates (2) with alkali- or alkaline earth-metals, residues of alkali- or alkaline earth-metals are removed. For this purpose into the chamber (3) a gas from the group of N2, O2 or air is introduced, which reacts with the alkali- or alkaline earth-metals to form the corresponding solid compounds. Water can additionally be introduced into the vacuum coating chamber (3). After the alkali- or alkaline earth-metals have reacted with the gas, the corresponding solid compound is removed from the vacuum coating chamber.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: December 27, 2011
    Assignee: Applied Materials, Inc.
    Inventors: Stefan Bangert, Jose Manuel Dieguez-Campo, Michael Koenig, Nety M. Krishna, Byung-Sung Leo Kwak
  • Publication number: 20110304899
    Abstract: A method of manufacturing electrically tintable window glass with a variety of sizes and functionalities is described. The method comprises: (a) providing a large format glass substrate; (b) fabricating a plurality of electrically tintable thin film devices on the large format glass substrate; (c) cutting the large format glass substrate into a plurality of electrically tintable pieces, each electrically tintable piece including one of the plurality of electrically tintable thin film devices; (d) providing a plurality of window glass pieces; (e) matching each one of the plurality of electrically tintable pieces with a corresponding one of the plurality of window glass pieces; and (f) laminating each of the matched electrically tintable pieces and window glass pieces. The lamination may result in the electrically tintable device either being sandwiched between the glass substrate and the window glass piece or on the surface of the laminated pieces. The electrically tintable device is an electrochromic device.
    Type: Application
    Filed: December 1, 2009
    Publication date: December 15, 2011
    Applicant: Applied Materials, Inc.
    Inventors: Byung-Sung Leo Kwak, Dieter Haas, Stefan Bangert, Nety M. Krishna
  • Publication number: 20110129594
    Abstract: Thin-film battery methods for complexity reduction are described. Processing equipment arrangements suitable to support thin-film battery methods for complexity reduction are also described. Cluster tools to support thin-film battery methods for complexity reduction are also described.
    Type: Application
    Filed: September 14, 2010
    Publication date: June 2, 2011
    Inventors: Byung-Sung Kwak, Nety M. Krishna
  • Publication number: 20100267191
    Abstract: The present invention generally provides a method for forming a photovoltaic device including evaporating a source material to form a large molecule processing gas and flowing the large molecule processing gas through a gas distribution showerhead and into a processing area of a processing chamber having a substrate therein. The method includes generating a small molecule processing gas, and reacting the small molecule processing gas with a film already deposited on a substrate surface to form a semiconductor film. Additionally, apparatuses that may use the methods are also provided to enable continuous inline CIGS type solar cell formation.
    Type: Application
    Filed: April 20, 2010
    Publication date: October 21, 2010
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Byung-Sung Kwak, Kaushal K. Singh, Stefan Bangert, Nety M. Krishna
  • Publication number: 20100261049
    Abstract: A readily manufacturable, high power, high energy, large area energy storage device is described. The energy storage device may use processes compatible with large area processing tools, such as large area coating systems and linear processing systems compatible with flexible thin film substrates. The energy storage devices may include batteries, super-capacitors and ultra-capacitors. An energy storage device may include a multiplicity of thin film cells formed on a single substrate, the multiplicity of cells being electrically connected in series, each one of the multiplicity of cells comprising: a current collector on the surface of the substrate; a first electrode on the current collector; a second electrode over the first electrode; and an electrolyte layer between the first electrode and the second electrode.
    Type: Application
    Filed: April 13, 2009
    Publication date: October 14, 2010
    Applicant: APPLIED MATERIALS, INC.
    Inventors: BYUNG-SUNG LEO KWAK, Nety M. Krishna, Omkaram Nalamasu, Kaushal K. Singh, Steven Verhaverbeke