Patents by Inventor Erkki Soininen

Erkki Soininen 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: 6248605
    Abstract: The present invention concerns a method of growing a cerium-doped SrS phosphor layer by the Atomic Layer Epitaxy-method. According to the invention an organometallic cerium compound containing at least one cyclopentadienyl type ligand is used as a precursor for the dopant cerium. The cyclopentadienyl type cerium compounds can be used as ALE precursors at about 400° C. substrate temperatures without any observable thermal decomposition during processing.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: June 19, 2001
    Assignee: Planar Systems Inc.
    Inventors: Gitte Härkönen, Tomi Kervinen, Erkki Soininen, Runar Törnqvist, Kirsi Vasama, Mario Glanz, Herbert Schumann
  • Patent number: 5496597
    Abstract: The present publication discloses a method for fabricating a multilayer alkaline-earth sulfide-metal oxide structure particularly suited for use in electroluminescent components. According to the method, a multilayer structure comprising at least one phosphor layer and at least one dielectric layer is formed onto a suitable substrate. The phosphor layer comprises at least one alkaline-earth sulfide and the dielectric layer at least one metal oxide. At least one of the dielectric layers is deposited by means of surface reactions directly onto the alkaline-earth sulfide layer(s). The invention is based on depositing the metal oxide dielectric layer by using as the precursor a organometal complex not involving compounds which could react in a deleterious manner with the alkaline-earth sulfide layer. This approach results in an EL component structure of longer life than those of the prior art.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: March 5, 1996
    Assignee: Planar International Ltd.
    Inventors: Erkki Soininen, Marja Leppa/ nen