Patents by Inventor Karl-Heinz Froehner

Karl-Heinz Froehner 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: 5986321
    Abstract: A fuse bank for use in the laser break-link programming of an integrated circuit device. The fuse bank uses fuse elements with two ends that contain fusible regions proximate the first end and non-fusible regions proximate the second end. The fuse elements are aligned in alternately oriented parallel rows so that the first end of each fuse element is juxtaposed with the second end of any adjacent fuse element. By sequentially alternating the orientation of the fuse elements in the fuse bank, the fuse elements can be formed in a highly dense matter without bringing any two fusible regions too close to one another. Accordingly, a laser can be used to sever selected fusible regions without adversely effecting other fusible regions within the fuse bank. By alternating the orientations of sequential fuse elements, a fuse bank can be created that is twice as dense as single orientation fuse banks with only a 30% to 50% increase in size.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: November 16, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventor: Karl-Heinz Froehner
  • Patent number: 5933714
    Abstract: A fuse bank for use in the laser break-link programming of an integrated circuit device. The fuse bank uses fuse elements with two ends that contain fusible regions proximate the first end and non-fusible regions proximate the second end. The fuse elements are aligned in alternately oriented parallel rows so that the first end of each fuse element is juxtaposed with the second end of any adjacent fuse element. By sequentially alternating the orientation of the fuse elements in the fuse bank, the fuse elements can be formed in a highly dense matter without bringing any two fusible regions too close to one another. Accordingly, a laser can be used to sever selected fusible regions without adversely effecting other fusible regions within the fuse bank. By alternating the orientations of sequential fuse elements, a fuse bank can be created that is twice as dense as single orientation fuse banks with only a 30% to 50% increase in size.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: August 3, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventor: Karl-Heinz Froehner
  • Patent number: 5827759
    Abstract: A programmable fuse element disposed between integrated circuit elements that may be selectively joined during the manufacture or programming of an integrated circuit. The fuse element is a normally open fuse that electrically isolates the integrated circuit elements. The fuse element is comprised of a central area of conductive material insulated from the integrated circuit elements by areas of dielectric material. The integrated circuit elements and the fuse element are disposed on a thin oxide layer covering a semiconductor substrate to prevent those elements from shorting to the semiconductor substrate or to each other via the semiconductor substrate. A protective dielectric layer may be deposited over both the fuse element and the integrated circuit elements during the manufacture of the overall integrated circuit. A laser beam is used to burn through the protective layer and melts both the conductive material and the dielectric material that form the fuse element.
    Type: Grant
    Filed: January 9, 1997
    Date of Patent: October 27, 1998
    Assignee: Siemens Microelectronics, Inc.
    Inventor: Karl-Heinz Froehner
  • Patent number: 5789794
    Abstract: A programmable fuse element disposed between integrated circuit elements that may be selectively joined during the manufacture or programming of an integrated circuit. The fuse element is a normally open fuse that electrically isolates the integrated circuit elements. The fuse element is comprised of a central area of conductive material insulated from the integrated circuit elements by areas of dielectric material. The integrated circuit elements and the fuse element are disposed on a thin oxide layer covering a semiconductor substrate to prevent those elements from shorting to the semiconductor substrate or to each other via the semiconductor substrate. A protective dielectric layer may be deposited over both the fuse element and the integrated circuit elements during the manufacture of the overall integrated circuit. A laser beam is used to burn through the protective layer and melts both the conductive material and the dielectric material that form the fuse element.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: August 4, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventor: Karl-Heinz Froehner
  • Patent number: 5773869
    Abstract: A fuse bank for use in the laser break-link programming of an integrated circuit device. The fuse bank uses fuse elements with two ends that contain fusible regions proximate the first end and non-fusible regions proximate the second end. The fuse elements are aligned in alternately oriented parallel rows so that the first end of each fuse element is juxtaposed with the second end of any adjacent fuse element. By sequentially alternating the orientation of the fuse elements in the fuse bank, the fuse elements can be formed in a highly dense matter without bringing any two fusible regions too close to one another. Accordingly, a laser can be used to sever selected fusible regions without adversely effecting other fusible regions within the fuse bank. By alternating the orientations of sequential fuse elements, a fuse bank can be created that is twice as dense as single orientation fuse banks with only a 30% to 50% increase in size.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: June 30, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventor: Karl-Heinz Froehner