Patents by Inventor Hermann Sigmund

Hermann Sigmund 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).

  • Method for producing a silicate layer in an integrated circuit
    Patent number: 5262358
    Abstract: A silicate layer, which is especially used as an intermediate oxide insulation layer in an integrated circuit for levelling topographic irregularities, is produced by the following method steps: photo-induced polymerization of polysiloxane by means of vapor-phase reaction taking as a basis an SiO-containing or an SiC-containing organic compound together with an O.sub.2 -containing and/or an N.sub.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: November 16, 1993
    Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Hermann Sigmund, Armin Klumpp
  • Process for the production of silicon layers
    Patent number: 4113548
    Abstract: A process for the production of a semi-conducting silicon layer on a foreign substrate by means of melt epitaxy comprises the steps of dissolving silicon in an aluminum-zinc melt and drawing a strip-like oxidized aluminum film or a strip-like oxidized aluminum film provided with a mono-atomic silicon or metal coating across the surface of the melt solution.
    Type: Grant
    Filed: May 11, 1977
    Date of Patent: September 12, 1978
    Inventor: Hermann Sigmund