Patents by Inventor Stefan Cosemans

Stefan Cosemans 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).

  • Publication number: 20190080735
    Abstract: There is provided a multiple data rate memory comprising a clock splitting circuit and a multiplexing address latch. The clock splitting circuit is configured to generate first and second internal clock pulses from a rising edge of an external clock signal and to provide the first and second internal clock signals to the multiplexing address latch. The multiplexing address latch is configured to output a first address signal in response to the first internal clock pulse and a second address signal in response to the second internal clock pulse.
    Type: Application
    Filed: February 27, 2017
    Publication date: March 14, 2019
    Inventor: Stefan COSEMANS
  • Patent number: 10102908
    Abstract: A microcomputer comprising a microprocessor unit and a first memory unit is disclosed. In one aspect, the microprocessor unit comprises at least one functional unit and at least one register. Further, the at least one register is a wide register comprising a plurality of second memory units which are capable to each contain one word, the wide register being adapted so that the second memory units are simultaneously accessible by the first memory unit, and at least part of the second memory units are separately accessible by the at least one functional unit. Further, the first memory unit is an embedded non-volatile memory unit.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: October 16, 2018
    Assignee: IMEC
    Inventors: Francky Catthoor, Komalan Manu Perumkunnil, Stefan Cosemans
  • Patent number: 10043798
    Abstract: A semiconductor circuit comprises a Front End of Line (FEOL) comprising a plurality of transistors, each of which having a source region, a drain region and a gate region arranged between the source region and the drain region and comprising a gate electrode. The semiconductor circuit also comprises a buried interconnect that is arranged in the FEOL and electrically connected to the gate region from below through a bottom contact portion of the gate electrode. By using a buried interconnect the routing of the circuit may be facilitated.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: August 7, 2018
    Assignee: IMEC VZW
    Inventors: Stefan Cosemans, Praveen Raghavan, Steven Demuynck, Julien Ryckaert
  • Publication number: 20180174653
    Abstract: A microcomputer comprising a microprocessor unit and a first memory unit is disclosed. In one aspect, the microprocessor unit comprises at least one functional unit and at least one register. Further, the at least one register is a wide register comprising a plurality of second memory units which are capable to each contain one word, the wide register being adapted so that the second memory units are simultaneously accessible by the first memory unit, and at least part of the second memory units are separately accessible by the at least one functional unit. Further, the first memory unit is an embedded non-volatile memory unit.
    Type: Application
    Filed: February 15, 2018
    Publication date: June 21, 2018
    Inventors: Francky Catthoor, Komalan Manu Perumkunnil, Stefan Cosemans
  • Patent number: 9911504
    Abstract: A data storage cell for storing data is disclosed. In one aspect, the data storage cell comprises a first nano electromechanical switch comprising a first moveable beam fixed to a first anchor, a first control gate and a second control gate, a first output node against which the first moveable beam can be positioned. The data storage cell also comprises a second nano electromechanical switch comprising a second moveable beam fixed to a second anchor, a third control gate and a fourth control gate. The second moveable beam can be positioned against the first output node. Further, the first nano electromechanical switch and the second nano electromechanical switch are configured for selecting a first or a second state of the data storage cell and are configured for having their moveable beam complementary positioned to the first output node.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: March 6, 2018
    Assignee: IMEC vzw
    Inventor: Stefan Cosemans
  • Patent number: 9899086
    Abstract: A microcomputer comprising a microprocessor unit and a first memory unit is disclosed. In one aspect, the microprocessor unit comprises at least one functional unit and at least one register. Further, the at least one register is a wide register comprising a plurality of second memory units which are capable to each contain one word, the wide register being adapted so that the second memory units are simultaneously accessible by the first memory unit, and at least part of the second memory units are separately accessible by the at least one functional unit. Further, the first memory unit is an embedded non-volatile memory unit.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: February 20, 2018
    Assignee: IMEC
    Inventors: Francky Catthoor, Komalan Manu Perumkunnil, Stefan Cosemans
  • Publication number: 20170062421
    Abstract: A semiconductor circuit comprises a Front End of Line (FEOL) comprising a plurality of transistors, each of which having a source region, a drain region and a gate region arranged between the source region and the drain region and comprising a gate electrode. The semiconductor circuit also comprises a buried interconnect that is arranged in the FEOL and electrically connected to the gate region from below through a bottom contact portion of the gate electrode. By using a buried interconnect the routing of the circuit may be facilitated.
    Type: Application
    Filed: August 25, 2016
    Publication date: March 2, 2017
    Inventors: Stefan Cosemans, Praveen Raghavan, Steven Demuynck, Julien Ryckaert
  • Patent number: 9278848
    Abstract: The disclosed technology relates generally to electromechanical devices, and relates more specifically to a nanoelectromechanical switch device and a method for manufacturing the same. In one aspect, an electromechanical device includes a first electrode stack and a second electrode stack, both electrode stacks extending in a vertical direction relative to a substrate surface and being spaced apart by a gap.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: March 8, 2016
    Assignees: IMEC, Katholieke Universiteit Leuven
    Inventors: Ann Witvrouw, Maliheh Ramezani, Stefan Cosemans
  • Patent number: 9224448
    Abstract: A non-volatile memory arrangement comprising a plurality of cells is disclosed. In one aspect, each cell comprises a memory element and a read selector in series. Further, the memory element is a nano-electro-mechanical switch comprising an anchor, a beam fixed to the anchor, a first and second control gate, for controlling the position of the beam, a first output node against which the beam can be positioned. The cell also comprises a read selector comprising a first selector terminal, a second selector terminal, the first selector terminal connected to the first output node. The first respectively second control gates of switches of a same word are connected together by a first respectively second write word line serving as control gate.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: December 29, 2015
    Assignees: IMEC vzw, Katholieke Universiteit Leuven
    Inventors: Stefan Cosemans, Ann Witvrouw, Maliheh Ramezani
  • Patent number: 9159415
    Abstract: The disclosed technology relates to a non-volatile resistive memory device and a method of using the same. In one aspect, the memory device comprises a plurality of memory cells interconnected by a plurality of bit lines, a plurality of word lines, a plurality of source lines and a plurality of form lines. The memory device further comprises a memory controller connected to and configured to apply voltages to the bit lines, the word lines, the source lines and the form lines. In addition, each of the memory cells comprises a cell selecting transistor and a resistive memory element serially connected to a drain-source path of the cell selecting transistor. Furthermore, each of the memory cells comprises a boosting capacitor configured to provide a boosting a voltage to an internal node formed at a connection point between the resistive memory element and the cell selecting transistor.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: October 13, 2015
    Assignee: IMEC
    Inventor: Stefan Cosemans
  • Publication number: 20150179246
    Abstract: A non-volatile memory arrangement comprising a plurality of cells is disclosed. In one aspect, each cell comprises a memory element and a read selector in series. Further, the memory element is a nano-electro-mechanical switch comprising an anchor, a beam fixed to the anchor, a first and second control gate, for controlling the position of the beam, a first output node against which the beam can be positioned. The cell also comprises a read selector comprising a first selector terminal, a second selector terminal, the first selector terminal connected to the first output node. The first respectively second control gates of switches of a same word are connected together by a first respectively second write word line serving as control gate.
    Type: Application
    Filed: December 2, 2014
    Publication date: June 25, 2015
    Inventors: Stefan Cosemans, Ann Witvrouw, Maliheh Ramezani
  • Publication number: 20150179278
    Abstract: A data storage cell for storing data is disclosed. In one aspect, the data storage cell comprises a first nano electromechanical switch comprising a first moveable beam fixed to a first anchor, a first control gate and a second control gate, a first output node against which the first moveable beam can be positioned. The data storage cell also comprises a second nano electromechanical switch comprising a second moveable beam fixed to a second anchor, a third control gate and a fourth control gate. The second moveable beam can be positioned against the first output node. Further, the first nano electromechanical switch and the second nano electromechanical switch are configured for selecting a first or a second state of the data storage cell and are configured for having their moveable beam complementary positioned to the first output node.
    Type: Application
    Filed: December 2, 2014
    Publication date: June 25, 2015
    Inventor: Stefan Cosemans
  • Patent number: 8958238
    Abstract: A memory device having complementary global and local bit-lines, the complementary local bit-lines being connectable to the complementary global bit-lines by means of a local write receiver which is configured for creating a full voltage swing on the complementary local bit lines from a reduced voltage swing on the complementary global bit lines. The local write receiver comprises a connection mechanism for connecting the local to the global bit-lines and a pair of cross-coupled inverters directly connected to the complementary local bit lines for converting the reduced voltage swing to the full voltage swing on the complementary local bit lines.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: February 17, 2015
    Assignees: Stichting IMEC Nederland, Kathoieke Universiteit Leuven
    Inventors: Vibhu Sharma, Stefan Cosemans, Wim Dehaene, Francky Catthoor, Maryam Ashouei, Jos Huisken
  • Publication number: 20140289457
    Abstract: A microcomputer comprising a microprocessor unit and a first memory unit is disclosed. In one aspect, the microprocessor unit comprises at least one functional unit and at least one register. Further, the at least one register is a wide register comprising a plurality of second memory units which are capable to each contain one word, the wide register being adapted so that the second memory units are simultaneously accessible by the first memory unit, and at least part of the second memory units are separately accessible by the at least one functional unit. Further, the first memory unit is an embedded non-volatile memory unit.
    Type: Application
    Filed: January 24, 2014
    Publication date: September 25, 2014
    Applicant: IMEC
    Inventors: Francky Catthoor, Komalan Manu Perumkunnil, Stefan Cosemans
  • Publication number: 20140225167
    Abstract: The disclosed technology relates generally to electromechanical devices, and relates more specifically to a nanoelectromechanical switch device and a method for manufacturing the same. In one aspect, an electromechanical device includes a first electrode stack and a second electrode stack, both electrode stacks extending in a vertical direction relative to a substrate surface and being spaced apart by a gap.
    Type: Application
    Filed: December 18, 2013
    Publication date: August 14, 2014
    Applicants: Katholieke Universiteit Leuven, IMEC
    Inventors: Ann Witvrouw, Maliheh Ramezani, Stefan Cosemans
  • Publication number: 20140092670
    Abstract: The disclosed technology relates to a non-volatile resistive memory device and a method of using the same. In one aspect, the memory device comprises a plurality of memory cells interconnected by a plurality of bit lines, a plurality of word lines, a plurality of source lines and a plurality of form lines. The memory device further comprises a memory controller connected to and configured to apply voltages to the bit lines, the word lines, the source lines and the form lines. In addition, each of the memory cells comprises a cell selecting transistor and a resistive memory element serially connected to a drain-source path of the cell selecting transistor. Furthermore, each of the memory cells comprises a boosting capacitor configured to provide a boosting a voltage to an internal node formed at a connection point between the resistive memory element and the cell selecting transistor.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 3, 2014
    Applicant: IMEC
    Inventor: Stefan Cosemans
  • Publication number: 20140071737
    Abstract: A memory device having complementary global and local bit-lines, the complementary local bit-lines being connectable to the complementary global bit-lines by means of a local write receiver which is configured for creating a full voltage swing on the complementary local bit lines from a reduced voltage swing on the complementary global bit lines. The local write receiver comprises a connection mechanism for connecting the local to the global bit-lines and a pair of cross-coupled inverters directly connected to the complementary local bit lines for converting the reduced voltage swing to the full voltage swing on the complementary local bit lines.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 13, 2014
    Applicants: Katholieke Universiteit Leuven, Stichting IMEC Nederland
    Inventors: Vibhu Sharma, Stefan Cosemans, Wim Dehaene, Francky Catthoor, Maryam Ashouei, Jos Huisken
  • Patent number: 8625187
    Abstract: A DND chip is disclosed. In one aspect, the chip includes a 2D DND array of DND elements logically arranged in rows and columns, and a DND driver architecture for actuating the DND elements. The DND driver has a set of first drive lines along the rows and a set of second drive lines along the columns, a set of first line drivers for each biasing one line from the set of first drive lines and a set of second line drivers for each biasing a line from the set of second drive lines. A plurality of second line drivers are spatially grouped together to serve a block of DND elements, and that plurality of second line drivers are spatially covered substantially completely by at least some DND elements of the block of DND elements. A holographic visualization system including the DND chip is provided.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: January 7, 2014
    Assignee: IMEC
    Inventors: Geert Van Der Plas, Stefan Cosemans
  • Patent number: 8462572
    Abstract: An ultra low power sense amplifier circuit for amplifying a low swing input signal to a full swing output signal is disclosed. In one aspect, the amplifier circuit includes a first amplifier stage for pre-amplifying the input signal to an intermediate signal on its internal nodes, a second amplifier stage for amplifying the intermediate signal to the output signal, and a control circuit for sequentially activating the first and second amplifier. The first amplifier has a capacitor for limiting energy consumption and two upsized PMOS transistors without NMOS transistors.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: June 11, 2013
    Assignees: Stichting IMEC Nederland, Katholieke Universiteit Leuven
    Inventors: Vibhu Sharma, Stefan Cosemans, Wim Dehaene, Francky Catthoor, Maryam Ashouei, Jos Huisken
  • Publication number: 20120127559
    Abstract: A DND chip is disclosed. In one aspect, the chip includes a 2D DND array of DND elements logically arranged in rows and columns, and a DND driver architecture for actuating the DND elements. The DND driver has a set of first drive lines along the rows and a set of second drive lines along the columns, a set of first line drivers for each biasing one line from the set of first drive lines and a set of second line drivers for each biasing a line from the set of second drive lines. A plurality of second line drivers are spatially grouped together to serve a block of DND elements, and that plurality of second line drivers are spatially covered substantially completely by at least some DND elements of the block of DND elements. A holographic visualization system including the DND chip is provided.
    Type: Application
    Filed: November 16, 2011
    Publication date: May 24, 2012
    Applicant: IMEC
    Inventors: Geert VAN DER PLAS, Stefan Cosemans