Patents by Inventor Wouter Eyckmans

Wouter Eyckmans 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: 7859349
    Abstract: The present invention is related to a device and corresponding methods for generating an oscillating signal. The device comprises a means for providing a current of spin polarised charge carriers, a magnetic, e.g. ferromagnetic, excitable layer adapted for receiving the generated current of spin polarised charge carriers thus generating an oscillating signal with a frequency Vosc and an integrated means for interacting with said magnetic, e.g. ferromagnetic, excitable layer such that a selection of said oscillation frequency is achieved. No external field needs to be applied to select or tune the frequency. Different types of integrated means can be used, such as e.g. means inducing mechanical stress in the magnetic, e.g. ferromagnetic, excitable layer, means inducing exchange bias interactions and means inducing magnetostatic interactions.
    Type: Grant
    Filed: December 24, 2004
    Date of Patent: December 28, 2010
    Assignee: IMEC
    Inventors: Wouter Eyckmans, Liesbet Lagae
  • Patent number: 7791250
    Abstract: The present invention relates to a device and corresponding method for ultrafast controlling of the magnetization of a magnetic element. A device (100) includes a surface acoustic wave generating means (102), a transport layer (104), which is typically functionally and partially structurally comprised in said SAW generating means (102), and at least one ferromagnetic element (106). A surface acoustic wave is generated and propagates in a transport layer (104) which typically consists of a piezo-electric material. Thus, strain is induced in the transport layer (104) and in the ferromagnetic element (106) in contact with this transport layer (104). Due to magneto elastic coupling this generates an effective magnetic field in the ferromagnetic element (106). If the surface acoustic wave has a frequency substantially close to the ferromagnetic resonance (FMR) frequency ?FMR the ferromagnetic element (106) is absorbed well and the magnetization state of the element can be controlled with this FMR frequency.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: September 7, 2010
    Assignee: IMEC
    Inventors: Wouter Eyckmans, Liesbet Lagae
  • Publication number: 20100164487
    Abstract: The present invention relates to a device and corresponding method for ultrafast controlling of the magnetization of a magnetic element. A device (100) includes a surface acoustic wave generating means (102), a transport layer (104), which is typically functionally and partially structurally comprised in said SAW generating means (102), and at least one ferromagnetic element (106). A surface acoustic wave is generated and propagates in a transport layer (104) which typically consists of a piezo-electric material. Thus, strain is induced in the transport layer (104) and in the ferromagnetic element (106) in contact with this transport layer (104). Due to magneto elastic coupling this generates an effective magnetic field in the ferromagnetic element (106). If the surface acoustic wave has a frequency substantially close to the ferromagnetic resonance (FMR) frequency ?FMR the ferromagnetic element (106) is absorbed well and the magnetization state of the element can be controlled with this FMR frequency.
    Type: Application
    Filed: December 29, 2009
    Publication date: July 1, 2010
    Applicant: INTERUNIVERSITAIR MICROELEKTRONICA CENTRUM (IMEC)
    Inventors: Wouter Eyckmans, Liesbet Lagae
  • Patent number: 7638922
    Abstract: The present invention relates to a device and corresponding method for ultrafast controlling of the magnetization of a magnetic element. A device (100) includes a surface acoustic wave generating means (102), a transport layer (104), which is typically functionally and partially structurally comprised in said SAW generating means (102), and at least one ferromagnetic element (106). A surface acoustic wave is generated and propagates in a transport layer (104) which typically consists of a piezo-electric material. Thus, strain is induced in the transport layer (104) and in the ferromagnetic element (106) in contact with this transport layer (104). Due to magneto elastic coupling this generates an effective magnetic field in the ferromagnetic element (106). If the surface acoustic wave has a frequency substantially close to the ferromagnetic resonance (FMR) frequency ?FMR the ferromagnetic element (106) is absorbed well and the magnetization state of the element can be controlled with this FMR frequency.
    Type: Grant
    Filed: December 24, 2004
    Date of Patent: December 29, 2009
    Assignee: Interuniversitair Microelektronica Centrum (IM
    Inventors: Wouter Eyckmans, Liesbet Lagae
  • Publication number: 20070285184
    Abstract: The present invention is related to a a device and corresponding methods for generating an oscillating signal. The device comprises a means for providing a current of spin polarised charge carriers, a magnetic, e.g. ferromagnetic, excitable layer adapted for receiving the generated current of spin polarised charge carriers thus generating an oscillating signal with a frequency and an integrated means for interacting with said magnetic, e.g. ferromagnetic, excitable layer such that a selection of said oscillation frequency is achieved. No external field needs to be applied to select or tune the frequency. Different types of integrated means can be used, such as e.g. means inducing mechanical stress in the magnetic, e.g. ferromagnetic, excitable layer, means inducing exchange bias interactions and means inducing magnetostatic interactions.
    Type: Application
    Filed: December 24, 2004
    Publication date: December 13, 2007
    Applicant: Interuniversitair Microelektronica Centrum (IMEC)
    Inventors: Wouter Eyckmans, Liesbet Lagae
  • Publication number: 20070183190
    Abstract: The present invention relates to a device and corresponding method for ultrafast controlling of the magnetization of a magnetic element. A device (100) includes a surface acoustic wave generating means (102), a transport layer (104), which is typically functionally and partially structurally comprised in said SAW generating means (102), and at least one ferromagnetic element (106). A surface acoustic wave is generated and propagates in a transport layer (104) which typically consists of a piezo-electric material. Thus, strain is induced in the transport layer (104) and in the ferromagnetic element (106) in contact with this transport layer (104). Due to magneto elastic coupling this generates an effective magnetic field in the ferromagnetic element (106). If the surface acoustic wave has a frequency substantially close to the ferromagnetic resonance (FMR) frequency ?FMR the ferromagnetic element (106) is absorbed well and the magnetisation state of the element can be controlled with this FMR frequency.
    Type: Application
    Filed: December 24, 2004
    Publication date: August 9, 2007
    Inventors: Wouter Eyckmans, Liesbet Lagae