Patents by Inventor Leif Steen Johansen

Leif Steen Johansen 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: 9980052
    Abstract: A MEMS microphone with reduced parasitic capacitance is provided. A microphone includes a protection film covering a rim-sided area of the backplate.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: May 22, 2018
    Assignee: TDK CORPORATION
    Inventors: Leif Steen Johansen, Jan Tue Ravnkilde, Pirmin Hermann Otto Rombach, Kurt Rasmussen
  • Patent number: 9382109
    Abstract: A MEMS microphone has reduced parasitic capacitance. The microphone includes a trench electrically separating an acoustically active section of a backplate from an acoustically inactive section of the backplate.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: July 5, 2016
    Assignee: EPCOS AG
    Inventors: Leif Steen Johansen, Jan Tue Ravnkilde, Pirmin Hermann Otto Rombach, Kurt Rasmussen
  • Patent number: 9369066
    Abstract: The present invention concerns a MEMS device comprising an under bump metallization (4)—UBM—to contact the device via flip-chip bonding with a substrate. The UBM (4) is placed on the surface of the MEMS device and close to the corners of the surface. Further, the shape of the UBM (4) is adapted to the shape of the corners.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: June 14, 2016
    Assignee: EPCOS AG
    Inventors: Leif Steen Johansen, Jan Tue Ravnkilde
  • Patent number: 9266713
    Abstract: A MEMS backplate enables MEMS microphones with reduced parasitic capacitance. The MEMS backplate includes a central area and a perforation in the central area. A suspension area surrounds the central area at least partially. An aperture is disposed in the suspension area.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: February 23, 2016
    Assignee: EPCOS AG
    Inventors: Leif Steen Johansen, Jan Tue Ravnkilde, Pirmin Hermann Otto Rombach, Kurt Rasmussen, Dennis Mortensen
  • Publication number: 20150076627
    Abstract: A MEMS microphone with reduced parasitic capacitance is provided. A microphone includes a protection film covering a rim-sided area of the backplate.
    Type: Application
    Filed: November 14, 2011
    Publication date: March 19, 2015
    Inventors: Leif Steen Johansen, Jan Tue Ravnkilde, Pirmin Hermann Otto Rombach, Kurt Rasmussen
  • Publication number: 20140346621
    Abstract: A MEMS backplate enables MEMS microphones with reduced parasitic capacitance. A MEMS backplate includes a central area and a perforation in the central area. A suspension area surrounds the central area at least partially. An aperture is disposed in the suspension area.
    Type: Application
    Filed: November 14, 2011
    Publication date: November 27, 2014
    Applicant: EPCOS AG
    Inventors: Leif Steen Johansen, Jan Tue Ravnkilde, Pirmin Hermann Otto Rombach, Kurt Rasmussen, Dennis Mortensen
  • Publication number: 20140346620
    Abstract: A MEMS microphone has reduced parasitic capacitance. The microphone includes a trench electrically separating an acoustically active section of the backplate from an acoustically inactive section of the backplate.
    Type: Application
    Filed: November 14, 2011
    Publication date: November 27, 2014
    Inventors: Leif Steen Johansen, Jan Tue Ravnkilde, Pirmin Hermann Otto Rombach, Kurt Rasmussen
  • Publication number: 20140035434
    Abstract: The present invention concerns a MEMS device comprising an under bump metallization (4)—UBM—to contact the device via flip-chip bonding with a substrate. The UBM (4) is placed on the surface of the MEMS device and close to the corners of the surface. Further, the shape of the UBM (4) is adapted to the shape of the corners.
    Type: Application
    Filed: February 10, 2011
    Publication date: February 6, 2014
    Applicant: EPCOS AG
    Inventors: Leif Steen Johansen, Jan Tue Ravnkilde
  • Patent number: 8542850
    Abstract: A miniature microphone assembly comprises a capacitive-microphone transducer, a microphone carrier, and an integrated circuit die. The capacitive-microphone transducer includes a microphone-electrical contact or terminal. The microphone carrier comprises a carrier electrical contact or terminal formed on a first surface of the microphone carrier. An integrated circuit die includes a die electrical terminal operatively coupled to signal amplification or signal conditioning circuitry of the integrated circuit die. The first surface of the microphone carrier comprises a hydrophobic layer or coating. The side surfaces of the integrated circuit die and/or the capacitive-microphone transducer may also include the hydrophobic layer or coating.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: September 24, 2013
    Assignee: Epcos Pte Ltd
    Inventors: Christian Wang, Jörg Rehder, Leif Steen Johansen, Peter Ulrik Scheel
  • Patent number: 8406437
    Abstract: The present invention relates to a miniature microphone assembly comprising a capacitive microphone transducer comprising a microphone electrical contact or terminal, a microphone carrier comprising a carrier electrical contact or terminal formed on a first surface thereof, and an integrated circuit die comprising a die electrical terminal operatively coupled to signal amplification or signal conditioning circuitry of the integrated circuit die. The first surface of the microphone carrier comprises a first electrically conductive path surrounding the carrier electrical contact or terminal.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: March 26, 2013
    Assignee: Epcos Pte Ltd
    Inventors: Leif Steen Johansen, Per F. Høvesten, Gino Rocca
  • Publication number: 20090214061
    Abstract: The present invention relates to a miniature microphone assembly comprising a capacitive microphone transducer comprising a microphone electrical contact or terminal, a microphone carrier comprising a carrier electrical contact or terminal formed on a first surface thereof, and an integrated circuit die comprising a die electrical terminal operatively coupled to signal amplification or signal conditioning circuitry of the integrated circuit die. The first surface of the microphone carrier comprises a first electrically conductive path surrounding the carrier electrical contact or terminal.
    Type: Application
    Filed: February 19, 2009
    Publication date: August 27, 2009
    Applicant: Pulse MEMS ApS.
    Inventors: Leif Steen Johansen, Per F. Høvesten, Gino Rocca
  • Publication number: 20090067659
    Abstract: A miniature microphone assembly comprises a capacitive-microphone transducer, a microphone carrier, and an integrated circuit die. The capacitive-microphone transducer includes a microphone-electrical contact or terminal. The microphone carrier comprises a carrier electrical contact or terminal formed on a first surface of the microphone carrier. An integrated circuit die includes a die electrical terminal operatively coupled to signal amplification or signal conditioning circuitry of the integrated circuit die. The first surface of the microphone carrier comprises a hydrophobic layer or coating. The side surfaces of the integrated circuit die and/or the capacitive-microphone transducer may also include the hydrophobic layer or coating.
    Type: Application
    Filed: September 2, 2008
    Publication date: March 12, 2009
    Inventors: Christian Wang, Jorg Rehder, Leif Steen Johansen, Peter Ulrik Scheel