Patents by Inventor Sumit Majumder

Sumit Majumder 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: 20240087828
    Abstract: Microelectromechanical systems (MEMS) switches are disclosed. Parallel configurations of back-to-back MEMS switches are disclosed in some embodiments. An isolation connection of constant electrical potential may be made to a midpoint of the back-to-back switches. In some embodiments, a separate MEMS switch is provided as a shunt switch for the main MEMS switch. MEMS switch device configurations having multiple switchable signal paths each coupling a common input electrode to a respective output electrode are also disclosed. The MEMS switch device includes shunt switches each coupling a respective output electrode to a reference potential. The presence of a shunt switch coupled to an output electrode enhances the isolation of the signal path corresponding to that output electrode when the path is open.
    Type: Application
    Filed: November 17, 2023
    Publication date: March 14, 2024
    Applicant: Analog Devices International Unlimited Company
    Inventors: Padraig Fitzgerald, Philip James Brennan, Jiawen Bai, Michael James Twohig, Bernard Patrick Stenson, Raymond C. Goggin, Mark Schirmer, Paul Lambkin, Donal P. McAuliffe, David Aherne, Cillian Burke, James Lee Lampen, Sumit Majumder
  • Publication number: 20130001054
    Abstract: An improved micro-machined relay is disclosed. The relay includes a micro-machined beam capable of carrying an electric signal and having a contact point on a closure side of the beam. The beam is electrically coupled to a first electrical transmission path and suspended above a second electrical transmission path. An insulation layer resides on a portion of the closure side of the beam and an electrical conductor is coupled to a least a portion of the insulation layer. A potential creator creates a potential between the electrical conductor and the potential creator that is capable of deflecting the beam, so that the contact point comes into contact with the second electrical transmission path. In such an embodiment, the potential creator need not account for the possible signal in the transmission path because the potential creator, which may be a voltage source, is decoupled from the transmission path.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 3, 2013
    Applicant: ANALOG DEVICES, INC.
    Inventors: Sumit Majumder, Kenneth Skrobis, Richard H. Morrison, Geoffrey Haigh
  • Patent number: 8279026
    Abstract: An improved micro-machined relay is disclosed. The relay includes a micro-machined beam capable of carrying an electric signal and having a contact point on a closure side of the beam. The beam is electrically coupled to a first electrical transmission path and suspended above a second electrical transmission path. An insulation layer resides on a portion of the closure side of the beam and an electrical conductor is coupled to a least a portion of the insulation layer. A potential creator creates a potential between the electrical conductor and the potential creator that is capable of deflecting the beam, so that the contact point comes into contact with the second electrical transmission path. In such an embodiment, the potential creator need not account for the possible signal in the transmission path because the potential creator, which may be a voltage source, is decoupled from the transmission path.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: October 2, 2012
    Assignee: Analog Devices, Inc.
    Inventors: Sumit Majumder, Kenneth Skrobis, Richard H. Morrison, Geoffrey Haigh
  • Publication number: 20100012471
    Abstract: An improved micro-machined relay is disclosed. The relay includes a micro-machined beam capable of carrying an electric signal and having a contact point on a closure side of the beam. The beam is electrically coupled to a first electrical transmission path and suspended above a second electrical transmission path. An insulation layer resides on a portion of the closure side of the beam and an electrical conductor is coupled to a least a portion of the insulation layer. A potential creator creates a potential between the electrical conductor and the potential creator that is capable of deflecting the beam, so that the contact point comes into contact with the second electrical transmission path. In such an embodiment, the potential creator need not account for the possible signal in the transmission path because the potential creator, which may be a voltage source, is decoupled from the transmission path.
    Type: Application
    Filed: September 18, 2009
    Publication date: January 21, 2010
    Applicant: ANALOG DEVICES, INC.
    Inventors: Sumit Majumder, Kenneth Skrobis, Richard H. Morrison, Geoffrey Haigh
  • Publication number: 20060232365
    Abstract: An improved micro-machined relay is disclosed. The relay includes a micro-machined beam capable of carrying an electric signal and having a contact point on a closure side of the beam. The beam is electrically coupled to a first electrical transmission path and suspended above a second electrical transmission path. An insulation layer resides on a portion of the closure side of the beam and an electrical conductor is coupled to a least a portion of the insulation layer. A potential creator creates a potential between the electrical conductor and the potential creator that is capable of deflecting the beam, so that the contact point comes into contact with the second electrical transmission path. In such an embodiment, the potential creator need not account for the possible signal in the transmission path because the potential creator, which may be a voltage source, is decoupled from the transmission path.
    Type: Application
    Filed: January 26, 2006
    Publication date: October 19, 2006
    Inventors: Sumit Majumder, Kenneth Skrobis, Richard Morrison, Geoffrey Haigh
  • Patent number: 7075393
    Abstract: A micromechanical relay is made by surface micromachining techniques. It includes a metallic cantilever beam deflectable by an electrostatic field and a beam contact connected to the beam and electrically insulated from the beam by an insulating segment. During operation, the beam deflects, and the beam contact establishes an electrical contact between two drain electrodes.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: July 11, 2006
    Assignee: Analog Devices, Inc.
    Inventors: Sumit Majumder, Kenneth Skrobis, Richard H. Morrison
  • Publication number: 20040196124
    Abstract: A micromechanical relay is made by surface micromachining techniques. It includes a metallic cantilever beam deflectable by an electrostatic field and a beam contact connected to the beam and electrically insulated from the beam by an insulating segment. During operation, the beam deflects, and the beam contact establishes an electrical contact between two drain electrodes.
    Type: Application
    Filed: October 27, 2003
    Publication date: October 7, 2004
    Inventors: Sumit Majumder, Kenneth Skrobis, Richard H. Morrison