Patents by Inventor Michael Toeller

Michael Toeller 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: 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: 20070037412
    Abstract: An in situ method for forming a HfO2 high-k dielectric layer in a batch wafer processing system. The method comprises first loading a plurality of wafers into a process chamber, and then pre-treating the plurality of wafers in the process chamber with a first oxidizer. After pre-treating the wafers, and without removing the wafers from the process chamber, the method then comprises depositing HfO2 on the plurality of wafers by atomic layer deposition, which comprises a plurality of deposition cycles, each cycle comprising alternating exposure of the plurality of wafers in the process chamber to a second oxidizer and a hafnium precursor. The hafnium precursor is selected from hafnium tert-butoxide (HTB) or hafnium tetra-diethylamide (TDEAH).
    Type: Application
    Filed: August 3, 2006
    Publication date: February 15, 2007
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Anthony Dip, Sadao Sasaki, Michael Toeller, Kimberly Reid
  • Publication number: 20050056219
    Abstract: A method is provided for forming a metal-containing film on a substrate by a sequential gas exposure process in a batch type processing system. A metal-containing film can be formed on a substrate by providing a substrate in a process chamber of a batch type processing system, heating the substrate, sequentially flowing a pulse of a metal-containing precursor gas and a pulse of a reactant gas in the process chamber, and repeating the flowing processes until a metal-containing film with desired film properties is formed on the substrate. The method can form a metal-oxide film, for example HfO2 and ZrO2, a metal-oxynitride film, for example HfxOzNw, and HfxOzNw, a metal-silicate film, for example HfxSiyOz and ZrxSiyOz, and a nitrogen-containing metal-silicate film, for example HfxSiyOzNw and ZrxSiyOzNw. A processing tool containing a batch type processing system for forming a metal-containing film by a sequential gas exposure process is provided.
    Type: Application
    Filed: September 16, 2003
    Publication date: March 17, 2005
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Anthony Dip, Michael Toeller, Kimberly Reid
  • 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