Patents by Inventor Stefan Uhlenbrock

Stefan Uhlenbrock 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: 20040048451
    Abstract: A method for the formation of rhodium films with good step coverage is disclosed. Rhodium films are formed by a low temperature atomic layer deposition technique using a first gas of rhodium group metal precursor followed by an oxygen exposure. The invention provides, therefore, a method for forming smooth and continuous rhodium films which also have good step coverage and a reduced carbon content.
    Type: Application
    Filed: September 9, 2003
    Publication date: March 11, 2004
    Inventors: Eugene P. Marsh, Stefan Uhlenbrock
  • Publication number: 20040040853
    Abstract: The present invention provides methods and systems for the electrolytic removal of platinum and/or other of the Group 8-11 metals from substrates.
    Type: Application
    Filed: August 29, 2002
    Publication date: March 4, 2004
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Eugene P. Marsh, Stefan Uhlenbrock, Donald L. Westmoreland
  • Publication number: 20040040494
    Abstract: A method of forming (and apparatus for forming) a layer, such as a strontium titanate, barium titanate, or barium-strontium titanate layer, on a substrate by employing a vapor deposition method, particularly a multi-cycle atomic layer deposition process.
    Type: Application
    Filed: August 28, 2002
    Publication date: March 4, 2004
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Brian A. Vaartstra, Stefan Uhlenbrock
  • Patent number: 6690055
    Abstract: A method of forming a rhodium-containing layer on a substrate, such as a semiconductor wafer, using complexes of the formula LyRhYz is provided. Also provided is a chemical vapor co-deposited platinum-rhodium alloy barriers and electrodes for cell dielectrics for integrated circuits, particularly for DRAM cell capacitors. The alloy barriers protect surrounding materials from oxidation during oxidative recrystallization steps and protect cell dielectrics from loss of oxygen during high temperature processing steps. Also provided are methods for CVD co-deposition of platinum-rhodium alloy diffusion barriers.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: February 10, 2004
    Assignee: Micron Technology, Inc.
    Inventors: Stefan Uhlenbrock, Eugene P. Marsh
  • Publication number: 20030233976
    Abstract: The present invention provides methods of performing atomic layer deposition to form conductive, oxidation-resistant rhodium oxide films and films comprising metals, such as platinum, alloyed with rhodium oxide. The present invention also provides memory devices and processors comprising films deposited by the above methods.
    Type: Application
    Filed: June 25, 2002
    Publication date: December 25, 2003
    Inventors: Eugene P. Marsh, Stefan Uhlenbrock
  • Patent number: 6656839
    Abstract: In one aspect, the invention encompasses a semiconductor processing method of forming a metal-comprising layer over a substrate. A substrate is provided within a reaction chamber, and a source of a metal-comprising precursor is provided external to the reaction chamber. The metal-comprising precursor comprises a metal coordinated with at least one Lewis base to form a complex having a stoichiometric ratio of the at least one Lewis base to the metal. An amount of the at least one Lewis base is distributed within the source to an amount that is in excess of the stoichiometric ratio. At least some of the metal-comprising precursor is transported from the source to the reaction chamber. A metal is deposited from the metal-comprising precursor and onto the substrate within the reaction chamber. In another aspect, the invention encompasses a method of storing a metal-comprising material. A metal-comprising material is dispersed within a solution.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: December 2, 2003
    Assignee: Micron Technology, Inc.
    Inventors: Stefan Uhlenbrock, Brian A. Vaartstra
  • Patent number: 6656835
    Abstract: A method for the formation of rhodium films with good step coverage is disclosed. Rhodium films are formed by a low temperature atomic layer deposition technique using a first gas of rhodium group metal precursor followed by an oxygen exposure. The invention provides, therefore, a method for forming smooth and continuous rhodium films which also have good step coverage and a reduced carbon content.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: December 2, 2003
    Assignee: Micron Technology, Inc.
    Inventors: Eugene P. Marsh, Stefan Uhlenbrock
  • Publication number: 20030212285
    Abstract: The present invention provides methods for the preparation of compounds of the formula (Formula I):
    Type: Application
    Filed: April 21, 2003
    Publication date: November 13, 2003
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Stefan Uhlenbrock, Brian A. Vaartstra
  • Publication number: 20030192350
    Abstract: Systems and methods for large scale synthesis of germanium selenide glass and germanium selenide glass compounds are provided. Up to about 750 grams of a germanium selenide glass or a glass compound can be synthesized at a time in about eight hours or less. Stoichiometrically proportional amounts of germanium and selenium are placed in an ampoule. A variable may also be placed in the ampoule. The ampoule is heated to above the softening temperature of the glass or glass compound being synthesized. The ampoule is then rocked for a period of time while the temperature is held constant. The temperature of the ampoule is then brought down to above the softening temperature of the glass or glass compound being synthesized and then quenched.
    Type: Application
    Filed: April 12, 2002
    Publication date: October 16, 2003
    Inventor: Stefan Uhlenbrock
  • Publication number: 20030154880
    Abstract: A method is provided for forming a film of ruthenium or ruthenium oxide to the surface of a substrate by employing the techniques of chemical vapor deposition to decompose ruthenium precursor formulations. The ruthenium precursor formulations of the present invention include a ruthenium precursor compound and a solvent capable of solubilizing the ruthenium precursor compound. A method is further provided for making a vaporized ruthenium precursor for use in the chemical vapor deposition of ruthenium and ruthenium-containing materials onto substrates, wherein a ruthenium precursor formulation having a ruthenium-containing precursor compound and a solvent capable of solubilizing the ruthenium-containing precursor compound is vaporized.
    Type: Application
    Filed: February 11, 2003
    Publication date: August 21, 2003
    Inventors: Eugene P. Marsh, Stefan Uhlenbrock
  • Publication number: 20030134465
    Abstract: In one aspect, the invention encompasses a semiconductor processing method of forming a metal-comprising layer over a substrate. A substrate is provided within a reaction chamber, and a source of a metal-comprising precursor is provided external to the reaction chamber. The metal-comprising precursor comprises a metal coordinated with at least one Lewis base to form a complex having a stoichiometric ratio of the at least one Lewis base to the metal. An amount of the at least one Lewis base is distributed within the source to an amount that is in excess of the stoichiometric ratio.. At least some of the metal-comprising precursor is transported from the source to the reaction chamber. A metal is deposited from the metal-comprising precursor and onto the substrate within the reaction chamber. In another aspect, the invention encompasses a method of storing a metal-comprising material. A metal-comprising material is dispersed within a solution.
    Type: Application
    Filed: January 3, 2003
    Publication date: July 17, 2003
    Inventors: Stefan Uhlenbrock, Brian A. Vaartstra
  • Publication number: 20030119316
    Abstract: A planarization method includes providing a second and/or third row Group VIII metal-containing surface (preferably, a platinum-containing surface) and positioning it for contact with a polishing surface in the presence of a planarization composition that includes an oxidizing agent.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 26, 2003
    Applicant: Micron Technology, Inc.
    Inventors: Rita J. Klein, Nishant Sinha, Gundu Sabde, Stefan Uhlenbrock, Don Westmoreland
  • Publication number: 20030119321
    Abstract: A planarization method includes providing a second and/or third Group VIII metal-containing surface (preferably, a platinum-containing surface) and positioning it for contact with a polishing surface in the presence of a planarization composition that includes an oxidizing gas.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 26, 2003
    Applicant: Micron Technology, Inc.
    Inventors: Stefan Uhlenbrock, Don Westmoreland
  • Patent number: 6576778
    Abstract: The present invention provides methods for the preparation of compounds of the formula (Formula I): LyM(CO)z wherein M is Ru or Os, each L is independently a neutral ligand, y=1-4, and z=1-5. These methods involve the reaction of Ru3(CO)12 or Os3(CO)12 with a neutral ligand in a solvent system having a boiling point higher than that of benzene at atmospheric pressure.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: June 10, 2003
    Assignee: Micron Technology, Inc.
    Inventors: Stefan Uhlenbrock, Brian A. Vaartstra
  • Publication number: 20030092262
    Abstract: A method is provided for forming a film of ruthenium or ruthenium oxide to the surface of a substrate by employing the techniques of chemical vapor deposition to decompose ruthenium precursor formulations. The ruthenium precursor formulations of the present invention include a ruthenium precursor compound and a solvent capable of solubilizing the ruthenium precursor compound. A method is further provided for making a vaporized ruthenium precursor for use in the chemical vapor deposition of ruthenium and ruthenium-containing materials onto substrates, wherein a ruthenium precursor formulation having a ruthenium-containing precursor compound and a solvent capable of solubilizing the ruthenium-containing precursor compound is vaporized.
    Type: Application
    Filed: December 17, 2002
    Publication date: May 15, 2003
    Inventors: Eugene P. Marsh, Stefan Uhlenbrock
  • Patent number: 6541067
    Abstract: A method is provided for forming a film of ruthenium or ruthenium oxide to the surface of a substrate by employing the techniques of chemical vapor deposition to decompose ruthenium precursor formulations. The ruthenium precursor formulations of the present invention include a ruthenium precursor compound and a solvent capable of solubilizing the ruthenium precursor compound. A method is further provided for making a vaporized ruthenium precursor for use in the chemical vapor deposition of ruthenium and ruthenium-containing materials onto substrates, wherein a ruthenium precursor formulation having a ruthenium-containing precursor compound and a solvent capable of solubilizing the ruthenium-containing precursor compound is vaporized.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: April 1, 2003
    Assignee: Micron Technology, Inc.
    Inventors: Eugene P. Marsh, Stefan Uhlenbrock
  • Publication number: 20030054606
    Abstract: A method for the formation of rhodium films with good step coverage is disclosed. Rhodium films are formed by a low temperature atomic layer deposition technique using a first gas of rhodium group metal precursor followed by an oxygen exposure. The invention provides, therefore, a method for forming smooth and continuous rhodium films which also have good step coverage and a reduced carbon content.
    Type: Application
    Filed: October 30, 2002
    Publication date: March 20, 2003
    Inventors: Eugene P. Marsh, Stefan Uhlenbrock
  • Patent number: 6517616
    Abstract: A method is provided for forming a film of ruthenium or ruthenium oxide to the surface of a substrate by employing the techniques of chemical vapor deposition to decompose ruthenium precursor formulations. The ruthenium precursor formulations of the present invention include a ruthenium precursor compound and a solvent capable of solubilizing the ruthenium precursor compound. A method is further provided for making a vaporized ruthenium precursor for use in the chemical vapor deposition of ruthenium and ruthenium-containing materials onto substrates, wherein a ruthenium precursor formulation having a ruthenium-containing precursor compound and a solvent capable of solubilizing the ruthenium-containing precursor compound is vaporized.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: February 11, 2003
    Assignee: Micron Technology, Inc.
    Inventors: Eugene P. Marsh, Stefan Uhlenbrock
  • Publication number: 20020197814
    Abstract: A method for the formation of rhodium films with good step coverage is disclosed. Rhodium films are formed by a low temperature atomic layer deposition technique using a first gas of rhodium group metal precursor followed by an oxygen exposure. The invention provides, therefore, a method for forming smooth and continuous rhodium films which also have good step coverage and a reduced carbon content.
    Type: Application
    Filed: June 21, 2001
    Publication date: December 26, 2002
    Inventors: Eugene P. Marsh, Stefan Uhlenbrock
  • Patent number: 6495459
    Abstract: In one aspect, the invention encompasses a semiconductor processing method of forming a metal-comprising layer over a substrate. A substrate is provided within a reaction chamber, and a source of a metal-comprising precursor is provided external to the reaction chamber. The metal-comprising precursor comprises a metal coordinated with at least one Lewis base to form a complex having a stoichiometric ratio of the at least one Lewis base to the metal. An amount of the at least one Lewis base is distributed within the source to an amount that is in excess of the stoichiometric ratio. At least some of the metal-comprising precursor is transported from the source to the reaction chamber. A metal is deposited from the metal-comprising precursor and onto the substrate within the reaction chamber. In another aspect, the invention encompasses a method of storing a metal-comprising material. A metal-comprising material is dispersed within a solution.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: December 17, 2002
    Assignee: Micron Technology, Inc.
    Inventors: Stefan Uhlenbrock, Brian A. Vaartstra