Patents by Inventor Iris M. Leefken

Iris M. Leefken 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: 9904754
    Abstract: Generating layouts of nets connecting connection terminals of cells in an integrated circuit. Cell layouts of the cells with parameterized locations of the connection terminals, a connection specification of nets specifying electrical connections between the connection terminals, and design rules for the laying out of the nets, are received. A placed layout is generated with the cell layouts placed adjacent to each other in a row. The cell layouts are placed in the row enabling minimization of a selected function. According to the design rules, the nets are laid out as straight interconnects being parallel to a reference straight line using the parameterized locations of the connection terminals in the cell layouts. The laying out includes varying locations of the parameterized locations of the interconnection terminals.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: February 27, 2018
    Assignee: International Business Machines Corporation
    Inventors: Gerhard Hellner, Iris M. Leefken, Silke Penth, Tobias Werner
  • Patent number: 9898571
    Abstract: Generating layouts of nets connecting connection terminals of cells in an integrated circuit. Cell layouts of the cells with parameterized locations of the connection terminals, a connection specification of nets specifying electrical connections between the connection terminals, and design rules for the laying out of the nets, are received. A placed layout is generated with the cell layouts placed adjacent to each other in a row. The cell layouts are placed in the row enabling minimization of a selected function. According to the design rules, the nets are laid out as straight interconnects being parallel to a reference straight line using the parameterized locations of the connection terminals in the cell layouts. The laying out includes varying locations of the parameterized locations of the interconnection terminals.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: February 20, 2018
    Assignee: International Business Machines Corporation
    Inventors: Gerhard Hellner, Iris M. Leefken, Silke Penth, Tobias Werner
  • Publication number: 20170228489
    Abstract: Generating layouts of nets connecting connection terminals of cells in an integrated circuit. Cell layouts of the cells with parameterized locations of the connection terminals, a connection specification of nets specifying electrical connections between the connection terminals, and design rules for the laying out of the nets, are received. A placed layout is generated with the cell layouts placed adjacent to each other in a row. The cell layouts are placed in the row enabling minimization of a selected function. According to the design rules, the nets are laid out as straight interconnects being parallel to a reference straight line using the parameterized locations of the connection terminals in the cell layouts. The laying out includes varying locations of the parameterized locations of the interconnection terminals.
    Type: Application
    Filed: February 5, 2016
    Publication date: August 10, 2017
    Inventors: Gerhard Hellner, Iris M. Leefken, Silke Penth, Tobias Werner
  • Publication number: 20170228487
    Abstract: Generating layouts of nets connecting connection terminals of cells in an integrated circuit. Cell layouts of the cells with parameterized locations of the connection terminals, a connection specification of nets specifying electrical connections between the connection terminals, and design rules for the laying out of the nets, are received. A placed layout is generated with the cell layouts placed adjacent to each other in a row. The cell layouts are placed in the row enabling minimization of a selected function. According to the design rules, the nets are laid out as straight interconnects being parallel to a reference straight line using the parameterized locations of the connection terminals in the cell layouts. The laying out includes varying locations of the parameterized locations of the interconnection terminals.
    Type: Application
    Filed: June 29, 2016
    Publication date: August 10, 2017
    Inventors: Gerhard Hellner, Iris M. Leefken, Silke Penth, Tobias Werner
  • Patent number: 9484073
    Abstract: The invention relates to a current sense amplifier. The current sense amplifier comprises: a first NAND gate comprising an output terminal being connected to a first output terminal, a second NAND gate comprising an output terminal being connected to a second output terminal, a first cross coupled inverter, and a second cross coupled inverter, the first inverter comprising a first n-FET and the second inverter comprising a second n-FET, a transmission gate comprising a first and a second transmission terminal and a transmission control terminal, the transmission control terminal being connected to a sense control line input terminal, a third n-FET having a source connected to a sense current input terminal and a drain connected to a source of the first n-FET, a fourth n-FET having a source connected to a reference current input terminal and a drain connected to a source of the second n-FET.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: November 1, 2016
    Assignee: International Business Machines Corporation
    Inventors: Alexander Fritsch, Gerhard Hellner, Iris M. Leefken, Rolf Sautter