Patents by Inventor Sjoerd Herder

Sjoerd Herder 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: 8881087
    Abstract: An integrated circuit chip is disclosed having a semiconductor substrate and a plurality of conduction layers (metalz, metalz+1), disposed on the semiconductor substrate and separated by dielectric layers, for distribution of power and electrical signals on the chip. The integrated circuit chip comprises a power-supply distribution network (200) which comprises, in a first one (metalz) of the conduction layers, a first mesh structure (210) of electrically conductive material for distribution of a first electrical potential (POWER) of the power supply. The power-supply distribution network also comprises, in a second one (metalz+1) of the conduction layers, different from the first one of the conduction layers, a second mesh structure (220) of electrically conductive material for distribution of a second electrical potential (GROUND) of the power supply.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: November 4, 2014
    Assignee: ST-Ericsson SA
    Inventors: Sjoerd Herder, Harro Koning
  • Publication number: 20130181337
    Abstract: An integrated circuit chip is disclosed having a semiconductor substrate and a plurality of conduction layers (metalz, metalz+1), disposed on the semiconductor substrate and separated by dielectric layers, for distribution of power and electrical signals on the chip. The integrated circuit chip comprises a power-supply distribution network (200) which comprises, in a first one (metalz) of the conduction layers, a first mesh structure (210) of electrically conductive material for distribution of a first electrical potential (POWER) of the power supply. The power-supply distribution network also comprises, in a second one (metalz+1) of the conduction layers, different from the first one of the conduction layers, a second mesh structure (220) of electrically conductive material for distribution of a second electrical potential (GROUND) of the power supply.
    Type: Application
    Filed: September 28, 2011
    Publication date: July 18, 2013
    Applicant: ST-ERICSSON SA
    Inventors: Sjoerd Herder, Harro Koning
  • Publication number: 20120081169
    Abstract: A symmetrical, balanced, down-conversion mixer is achieved by the coordinated layout of a balanced Local Oscillator (LO) divider circuit and a balanced Radio Frequency (RF) mixer circuit, such that the LO divider is in the center and the RF mixer is arrayed symmetrically around the LO divider. In particular, the LO divider is partitioned into four portions (e.g., Ip, In, Qp, Qn), which are placed in respective quadrants, defined by orthogonal reference axes through the LO divider center. The RF mixer is similarly partitioned into four corresponding portions, which are placed around the LO divider portions in each quadrant. By integrating the LO divider and RF mixer in the layout of the symmetric, balanced, down-conversion mixer, greater component matching and control of current paths are possible, improving operational quality parameters such as IRR, IP2, and LO feedthrough.
    Type: Application
    Filed: April 15, 2011
    Publication date: April 5, 2012
    Inventors: Sjoerd Herder, Berend Hendrik Essink, Johannes Frambach