Patents by Inventor Ivo Crössmann

Ivo Crössmann 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: 20240093408
    Abstract: The present invention relates to a method for producing a preferably elongated SiC solid, in particular of polytype 3C. The method according to the invention preferably includes at least the following steps: Introducing at least a first source gas into a process chamber, said first source gas including Si, introducing at least one second source gas into the process chamber, the second source gas including C, electrically energizing at least one separator element disposed in the process chamber to heat the separator element, setting a deposition rate of more than 200 ?m/h, where a pressure in the process chamber of more than 1 bar is generated by the introduction of the first source gas and/or the second source gas, and where the surface of the deposition element is heated to a temperature in the range between 1300° C. and 1800° C.
    Type: Application
    Filed: December 13, 2021
    Publication date: March 21, 2024
    Inventors: Ivo Crössmann, Friedrich Schaaff, Hilmar Richard Tiefel, Kagan Ceran
  • Publication number: 20240060211
    Abstract: The present invention relates to a method for producing a preferably elongated SiC solid, in particular of polytype 3C. The method according to the invention preferably includes at least the following steps: Introducing at least a first source gas into a process chamber, said first source gas including Si, introducing at least one second source gas into the process chamber, the second source gas including C, electrically energizing at least one separator element disposed in the process chamber to heat the separator element, setting a deposition rate of more than 200 ?m/h, where a pressure in the process chamber of more than 1 bar is generated by the introduction of the first source gas and/or the second source gas, and where the surface of the deposition element is heated to a temperature in the range between 1300° C. and 1800° C.
    Type: Application
    Filed: December 13, 2021
    Publication date: February 22, 2024
    Inventors: Ivo Crössmann, Friedrich Schaaff, Hilmar Richard Tiefel, Kagan Ceran
  • Publication number: 20240044045
    Abstract: The present invention relates to a method for producing a preferably elongated SiC solid, in particular of polytype 3C. The method according to the invention preferably includes at least the following steps: introducing at least a first source gas into a process chamber, said first source gas including Si, introducing at least one second source gas into the process chamber, the second source gas including C, electrically energizing at least one separator element disposed in the process chamber to heat the separator element, setting a deposition rate of more than 200 ?m/h, wherein a pressure in the process chamber of more than 1 bar is generated by the introduction of the first source gas and/or the second source gas, and wherein the surface of the deposition element is heated to a temperature in the range between 1300° C. and 1800° C.
    Type: Application
    Filed: December 13, 2021
    Publication date: February 8, 2024
    Inventors: Ivo Crössmann, Friedrich Schaaff, Hilmar Richard Tiefel, Kagan Ceran
  • Publication number: 20240035201
    Abstract: The present invention relates to a method for producing a preferably elongated SiC solid, in particular of polytype 3C. The method according to the invention preferably includes at least the following steps: introducing at least a first source gas into a process chamber, said first source gas comprising Si, introducing at least one second source gas into the process chamber, the second source gas comprising C, electrically energizing at least one separator element disposed in the process chamber to heat the separator element, setting a deposition rate of more than 200 ?m/h, where a pressure in the process chamber of more than 1 bar is generated by the introduction of the first source gas and/or the second source gas, and where the surface of the deposition element is heated to a temperature in the range between 1300° C. and 1800° C.
    Type: Application
    Filed: December 13, 2021
    Publication date: February 1, 2024
    Inventors: Ivo Crössmann, Friedrich Schaaff, Hilmar Richard Tiefel, Kagan Ceran
  • Publication number: 20240034635
    Abstract: The present invention relates to a method for producing a preferably elongated SiC solid, in particular of polytype 3C. The method according to the invention preferably includes at least the following steps: introducing at least a first source gas into a process chamber, said first source gas including Si, introducing at least one second source gas into the process chamber, the second source gas including C, electrically energizing at least one separator element disposed in the process chamber to heat the separator element, setting a deposition rate of more than 200 ?m/h, where a pressure in the process chamber of more than 1 bar is generated by the introduction of the first source gas and/or the second source gas, and where the surface of the deposition element is heated to a temperature in the range between 1300° C. and 1800° C.
    Type: Application
    Filed: December 13, 2021
    Publication date: February 1, 2024
    Inventors: Ivo Crössmann, Friedrich Schaaff, Hilmar Richard Tiefel, Kagan Ceran
  • Publication number: 20240035153
    Abstract: The present invention relates to a method for producing a preferably elongated SiC solid, in particular of polytype 3C. The method according to the invention preferably includes at least the following steps: introducing at least a first source gas into a process chamber, said first source gas including Si, introducing at least one second source gas into the process chamber, the second source gas including C, electrically energizing at least one separator element disposed in the process chamber to heat the separator element, setting a deposition rate of more than 200 ?m/h, where a pressure in the process chamber of more than 1 bar is generated by the introduction of the first source gas and/or the second source gas, and where the surface of the deposition element is heated to a temperature in the range between 1300° C. and 1700° C.g.
    Type: Application
    Filed: December 13, 2021
    Publication date: February 1, 2024
    Inventors: Ivo Crössmann, Friedrich Schaaff, Hilmar Richard Tiefel, Kagan Ceran
  • Publication number: 20240026566
    Abstract: The present invention relates to a method for producing a preferably elongated SiC solid, in particular of polytype 3C. The method according to the invention preferably includes at least the following steps: introducing at least a first source gas into a process chamber, said first source gas including Si, introducing at least one second source gas into the process chamber, the second source gas including C, electrically energizing at least one separator element disposed in the process chamber to heat the separator element, setting a deposition rate of more than 200 ?m/h, where a pressure in the process chamber of more than 1 bar is generated by the introduction of the first source gas and/or the second source gas, and where the surface of the deposition element is heated to a temperature in the range between 1300° C. and 1800° C.
    Type: Application
    Filed: December 13, 2021
    Publication date: January 25, 2024
    Inventors: Ivo Crössmann, Friedrich Schaaff, Hilmar Richard Tiefel, Kagan Ceran
  • Patent number: 7927571
    Abstract: In the batch production of high purity polycrystalline silicon, in which a U-shaped silicon carrier body is fastened in an open deposition reactor, the deposition reactor is hermetically sealed, the U-shaped carrier body is heated electrical current, a silicon-containing reaction gas and hydrogen are introduced into the reactor through a supply line so that silicon from the reaction gas is deposited on the carrier body, the diameter of the carrier body increases and a waste gas formed is removed from the deposition reactor through a discharge line, and, after a desired diameter of the polysilicon rod is reached, deposition is terminated, the carrier body is cooled to room temperature, the reactor is opened, the carrier body is removed from the reactor and a second U-shaped silicon carrier body made of silicon is fastened in the deposition reactor, an inert gas is fed through the supply and discharge lines into the open reactor from at least the time when the reactor is opened to extract the first carrier body
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: April 19, 2011
    Assignee: Wacker Chemie AG
    Inventors: Thomas Altmann, Hans Peter Sendlinger, Ivo Croessmann
  • Patent number: 7708828
    Abstract: A polycrystalline granulated silicon is made of particles which have a density of greater than 99.9% of the theoretical solid density and therefore have a pore content of less than 0.1% and have a surface roughness Ra of less than 150 nm.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: May 4, 2010
    Assignee: Wacker-Chemie GmbH
    Inventors: Dieter Weidhaus, Ivo Crössmann, Franz Schreieder