Patents by Inventor Jan-Olov Fornell

Jan-Olov Fornell 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: 5695567
    Abstract: A susceptor for a device for epitaxially growing objects made of one of SiC, a Group 3B-nitride and alloys thereof on a substrate to be received in the susceptor, includes plurality of separate susceptor wall pieces defining a top wall, a bottom wall and lateral walls. The wall pieces are made of a material which may be heated by induction and are secured to each other to form the susceptor. A channel is defined by susceptor walls adapted to receive the substrate and through which a source material for the growth is to be fed. At least one SiC-plate is inserted to cover at least one of the top and bottom walls and to extend between and separate the lateral walls and the at least one of the top and bottom walls.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: December 9, 1997
    Assignee: ABB Research Ltd.
    Inventors: Olle Kordina, Jan-Olov Fornell, Rune Berge, Roger Nilsson
  • Patent number: 5674320
    Abstract: A susceptor for a device for epitaxially growing objects of a material on a substrate. The material is selected from the group consisting of SiC, a Group 3B-nitride, and alloys of SiC and a Group 3B-nitride. The susceptor includes at least two channels each adapted to receive at least one substrate for growth of at least one of the objects and each adapted to receive a flow of the material to be fed to the susceptor for the growth of the objects. Walls surround the at least two channels including a central part between the channels. Heat is applied surrounding the susceptor, including the walls and the central part. A higher electrical resistance for induction currents generated by the heating is provided over at least one cross-sectional area of the susceptor. The higher electrical resistance is created by a physical division of the susceptor walls and a thin plate of SiC.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: October 7, 1997
    Assignee: ABB Research Ltd.
    Inventors: Olle Kordina, Jan-Olov Fornell, Rune Berge, Roger Nilsson