Patents by Inventor Kristen Scheer

Kristen Scheer 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: 7517814
    Abstract: A method for preparing an oxynitride film on a substrate comprising forming the oxynitride film by exposing a surface of the substrate to oxygen radicals and nitrogen radicals formed by plasma induced dissociation of a process gas comprising nitrogen and oxygen using plasma based on microwave irradiation via a plane antenna member having a plurality of slits.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: April 14, 2009
    Assignees: Tokyo Electron, Ltd., International Business Machines Corporation
    Inventors: Cory S. Wajda, Kristen Scheer, Toshihara Furakawa
  • Patent number: 7501352
    Abstract: The present invention generally provides a method for preparing an oxynitride film on a substrate. A surface of the substrate is exposed to oxygen radicals formed by ultraviolet (UV) radiation induced dissociation of a first process gas comprising at least one molecular composition comprising oxygen to form an oxide film on the surface. The oxide film is exposed to nitrogen radicals formed by plasma induced dissociation of a second process gas comprising at least one molecular composition comprising nitrogen using plasma based on microwave irradiation via a plane antenna member having a plurality of slits to nitridate the oxide film and form the oxynitride film.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: March 10, 2009
    Assignees: Tokyo Electron, Ltd., International Business Machines Corporation (“IBM”)
    Inventors: Masanobu Igeta, Cory Wajda, David L. O'Meara, Kristen Scheer, Toshihara Eurakawa
  • Patent number: 7235440
    Abstract: Ultra-thin oxide layers are formed utilizing low pressure processing to achieve self-limiting oxidation of substrates and provide ultra-thin oxide. The substrates to be processed can contain an initial dielectric layer such as an oxide layer, an oxynitride layer, a nitride layer, a high-k layer, or alternatively can lack an initial dielectric layer. The processing can be carried out using a batch type process chamber or, alternatively, using a single-wafer process chamber. One embodiment of the invention provides self-limiting oxidation of Si-substrates that results in SiO2 layers with a thickness of about 15 A, where the thickness of the SiO2 layers varies less than about 1 A over the substrates.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: June 26, 2007
    Assignees: Tokyo Electron Limited, International Business Machines Corporation
    Inventors: David L O'Meara, Cory Wajda, Anthony Dip, Michael Toeller, Toshihara Furukawa, Kristen Scheer, Alessandro Callegari, Fred Buehrer, Sufi Zafar, Evgeni Gousev, Anthony Chou, Paul Higgins
  • Patent number: 7202186
    Abstract: Ultra-thin oxynitride layers are formed utilizing low-pressure processing to achieve self-limiting oxidation of substrates and provide ultra-thin oxynitride. The substrates to be processed can contain an initial dielectric layer such as an oxide layer, an oxynitride layer, or a nitride layer, or alternatively can lack an initial dielectric layer. The processing can be carried out using a batch type process chamber or a single-wafer process chamber.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: April 10, 2007
    Assignees: Tokyo Electron Limited, International Business Machines Corporation (IBM)
    Inventors: David L O'Meara, Cory Wajda, Anthony Dip, Michael Toeller, Toshihara Furukawa, Kristen Scheer, Alessandro Callegari, Fred Buehrer, Sufi Zafar, Evgeni Gousev, Anthony Chou, Paul Higgins
  • Publication number: 20060228902
    Abstract: The present invention generally provides a method for preparing an oxynitride film on a substrate. A surface of the substrate is exposed to oxygen radicals formed by ultraviolet (UV) radiation induced dissociation of a first process gas comprising at least one molecular composition comprising oxygen to form an oxide film on the surface. The oxide film is exposed to nitrogen radicals formed by plasma induced dissociation of a second process gas comprising at least one molecular composition comprising nitrogen using plasma based on microwave irradiation via a plane antenna member having a plurality of slits to nitridate the oxide film and form the oxynitride film.
    Type: Application
    Filed: March 30, 2005
    Publication date: October 12, 2006
    Inventors: Masanobu Igeta, Cory Wajda, David O'Meara, Kristen Scheer, Toshihara Eurakawa
  • Publication number: 20060228871
    Abstract: A method for preparing an oxynitride film on a substrate comprising forming the oxynitride film by exposing a surface of the substrate to oxygen radicals and nitrogen radicals formed by plasma induced dissociation of a process gas comprising nitrogen and oxygen using plasma based on microwave irradiation via a plane antenna member having a plurality of slits.
    Type: Application
    Filed: March 30, 2005
    Publication date: October 12, 2006
    Inventors: Cory Wajda, Kristen Scheer, Toshihara Furakawa
  • Patent number: 6974779
    Abstract: A method is provided for forming a microstructure with an interfacial oxide layer by using a diffusion filter layer to control the oxidation properties of a substrate associated with formation of a high-k layer into the microstructure. The diffusion filter layer controls the oxidation of the surface. The interfacial oxide layer can be formed during an oxidation process that is carried out following deposition of a high-k layer onto the diffusion filter layer, or during deposition of a high-k layer onto the diffusion filter layer.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: December 13, 2005
    Assignees: Tokyo Electron Limited, International Business Machines Corporation
    Inventors: David L O'Meara, Cory Wajda, Tsuyoshi Takahashi, Alessandro Callegari, Kristen Scheer, Sufi Zafar, Paul Jamison
  • Publication number: 20050118764
    Abstract: Gate oxides having different thicknesses are formed on a semiconductor substrate by forming a first gate oxide on the top surface of the substrate, forming a sacrificial hard mask over a selected area of the first gate oxide; and then forming a second gate oxide. A first poly layer may be formed on the first gate oxide, under the hard mask. After the hard mask is removed, a second poly layer may be formed over the second gate oxide and over the first poly layer. This enables the use of high-k dielectric materials, and the first gate oxide can be thinner than the second gate oxide.
    Type: Application
    Filed: November 28, 2003
    Publication date: June 2, 2005
    Inventors: Anthony Chou, Michael Chudzik, Toshiharu Furukawa, Oleg Gluschenkov, Paul Kirsch, Byoung Lee, Katsunori Onishi, Heemyoung Park, Kristen Scheer, Akihisa Sekiguchi
  • Publication number: 20050059259
    Abstract: A method is provided for forming a microstructure with an interfacial oxide layer by using a diffusion filter layer to control the oxidation properties of a substrate associated with formation of a high-k layer into the microstructure. The diffusion filter layer controls the oxidation of the surface. The interfacial oxide layer can be formed during an oxidation process that is carried out following deposition of a high-k layer onto the diffusion filter layer, or during deposition of a high-k layer onto the diffusion filter layer.
    Type: Application
    Filed: September 16, 2003
    Publication date: March 17, 2005
    Applicants: Tokyo Electron Limited, International Business Machines Corporation
    Inventors: David O'Meara, Cory Wajda, Tsuyoshi Takahashi, Alessandro Callegari, Kristen Scheer, Sufi Zafar, Paul Jamison
  • Publication number: 20050026453
    Abstract: Ultra-thin oxide layers are formed utilizing low pressure processing to achieve self-limiting oxidation of substrates and provide ultra-thin oxide. The substrates to be processed can contain an initial dielectric layer such as an oxide layer, an oxynitride layer, a nitride layer, a high-k layer, or alternatively can lack an initial dielectric layer. The processing can be carried out using a batch type process chamber or, alternatively, using a single-wafer process chamber. One embodiment of the invention provides self-limiting oxidation of Si-substrates that results in SiO2 layers with a thickness of about 15 A, where the thickness of the SiO2 layers varies less than about 1 A over the substrates.
    Type: Application
    Filed: July 31, 2003
    Publication date: February 3, 2005
    Applicants: Tokyo Electron Limited, International Business Machines Corporation
    Inventors: David O'Meara, Cory Wajda, Anthony Dip, Michael Toeller, Toshihara Furukawa, Kristen Scheer, Alessandro Callegari, Fred Buehrer, Sufi Zafar, Evgeni Gousev, Anthony Chou, Paul Higgins
  • Publication number: 20050026459
    Abstract: Ultra-thin oxynitride layers are formed utilizing low-pressure processing to achieve self-limiting oxidation of substrates and provide ultra-thin oxynitride. The substrates to be processed can contain an initial dielectric layer such as an oxide layer, an oxynitride layer, or a nitride layer, or alternatively can lack an initial dielectric layer. The processing can be carried out using a batch type process chamber or a single-wafer process chamber.
    Type: Application
    Filed: July 31, 2003
    Publication date: February 3, 2005
    Applicants: Tokyo Electron Limited, International Business Machines Corporation
    Inventors: David O'Meara, Cory Wajda, Anthony Dip, Michael Toeller, Toshihara Furukawa, Kristen Scheer, Alessandro Callegari, Fred Buehrer, Sufi Zafar, Evgeni Gousev, Anthony Chou, Paul Higgins