Patents by Inventor Jan Magras

Jan Magras 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: 20020166503
    Abstract: A crucible susceptor for a crystal growing process for pulling a crystal ingot from a crystal material melt in a crucible, comprises at least one high purity composite component containing a carbon fiber reinforced carbon matrix, said at least one high purity composite component having a total level of metal impurity less than about 10 parts per million; and at least one high purity graphite component, said at least one high purity graphite component having a total level of metal impurity less than about 10 parts per million. A single crystal growing process for pulling a single crystal ingot from a crystal material melt includes providing a crystal material melt in a crucible and intimately supporting the crucible with the crucible susceptor of the present invention. The crucible susceptor disclosed may be used in a Czochralski crystal growing process for pulling a semiconductor ingot from a semiconductor material melt.
    Type: Application
    Filed: March 8, 2001
    Publication date: November 14, 2002
    Applicant: Hitco Carbon Composites, Inc.
    Inventors: Jan Magras, Kim Fjeldsted, Brian Ferguson