Patents by Inventor Alexander G. M. Jonkers

Alexander G. M. Jonkers 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: 5366928
    Abstract: A method of manufacturing a semiconductor device is set forth comprising a semiconductor body (1) having a surface (2) adjoined by a semiconductor region (3) and a field oxide region (4) surrounding this region, on which surface (2) is provided a metal layer (13), in which a conductor track (17, 18) is formed, after which an isolating layer of silicon oxide (19) is deposited over the conductor track (17, 18) on the surface (2). According to the invention, before the layer of silicon oxide (19) is provided over the conductor track (17, 18), this track is provided with a top layer (16) of an oxidation-preventing material. By providing this top layer (16), it is avoided that the conductor track (17, 18) covered by silicon oxide (19) has a high electrical resistance or even an electrical interruption.
    Type: Grant
    Filed: June 4, 1993
    Date of Patent: November 22, 1994
    Assignee: U.S. Philips Corporation
    Inventors: Robertus A. M. Wolters, Alexander G. M. Jonkers
  • Patent number: 5081065
    Abstract: Disclosed is a method of contacting a metal silicide pattern on an integrated semiconductor circuit which is provided with a planarized dielectric layer. A silicide-forming metal layer (9), preferably a titanium layer, is provided on the surface of a silicon substrate having a field oxide patter (2) which is provided with a conductor pattern (4) of silicon. A layer (10) of amorphous (a-) silicon is provided locally on this metal layer to form "straps". The entire device is heated in a nitrogen-containing atmosphere, by which the metal layer (9) is converted at least partly into metal silicide (12). A dielectric layer (13), for example of silicon oxide, is provided over the entire surface. The layer (13) is planarized and provided with contact windows (15) on the metal silicide by etching, after which a metallization (16) is provided.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: January 14, 1992
    Assignee: U.S. Philips Corporation
    Inventors: Alexander G. M. Jonkers, Christopher A. Seams, Harald Godon, Andre Stolmeijer