Patents by Inventor Edward Siivola

Edward Siivola 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: 8623687
    Abstract: A method of forming a thermoelectric device may include forming a first electrically conductive trace, and bonding a thermoelectric element to the first electrically conductive trace. After bonding the thermoelectric element to the first electrically conductive trace, a metal post may be formed on the thermoelectric element so that the thermoelectric element is between the first electrically conductive trace and the metal post. After forming the metal post, the metal post may be bonded to a second electrically conductive trace so that the metal post is between the second electrically conductive trace and the thermoelectric element. Other related methods and structures are also discussed.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: January 7, 2014
    Assignee: Nextreme Thermal Solutions, Inc.
    Inventors: Brooks O'Quinn, Rama Venkatasubramanian, Edward Siivola
  • Patent number: 7342169
    Abstract: A thermoelectric structure and device including at least first and second material systems having different lattice constants and interposed in contact with each other, and a physical interface at which the at least first and second material systems are joined with a lattice mismatch and at which structural integrity of the first and second material systems is substantially maintained. The at least first and second material systems have a charge carrier transport direction normal to the physical interface and preferably periodically arranged in a superlattice structure.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: March 11, 2008
    Assignee: Nextreme Thermal Solutions
    Inventors: Rama Venkatasubramanian, Edward Siivola, Thomas Colpitts, Brooks O'Quinn
  • Publication number: 20070028956
    Abstract: Forming a thermoelectric device may include forming a thermoelectric superlattice including a plurality of alternating layers of different thermoelectric materials wherein a period of the alternating layers varies over a thickness of the superlattice. More particularly, forming the superlattice may include depositing the superlattice on a single crystal substrate using epitaxial deposition. In addition, the single crystal substrate may be removed from the superlattice, and a second thermoelectric superlattice may be provided with the first and second thermoelectric superlattices having opposite conductivity types. Moreover, the first and second thermoelectric superlattices may be thermally coupled in parallel between two thermally conductive plates while electrically coupling the first and second thermoelectric superlattices in series. Related materials and devices and structures are also discussed.
    Type: Application
    Filed: April 12, 2006
    Publication date: February 8, 2007
    Inventors: Rama Venkatasubramanian, Edward Siivola, Brooks O'Quinn, James Caylor, Jonathan Pierce
  • Publication number: 20060289052
    Abstract: A method of forming a thermoelectric device may include forming a first electrically conductive trace, and bonding a thermoelectric element to the first electrically conductive trace. After bonding the thermoelectric element to the first electrically conductive trace, a metal post may be formed on the thermoelectric element so that the thermoelectric element is between the first electrically conductive trace and the metal post. After forming the metal post, the metal post may be bonded to a second electrically conductive trace so that the metal post is between the second electrically conductive trace and the thermoelectric element. Other related methods and structures are also discussed.
    Type: Application
    Filed: June 21, 2006
    Publication date: December 28, 2006
    Inventors: Brooks O'Quinn, Rama Venkatasubramanian, Edward Siivola
  • Publication number: 20060225773
    Abstract: A thermoelectric device having at least one unipolar couple element (22) including two legs (22a) of a same electrical conductivity type. A first-temperature stage (24) is connected to one of the two legs. A second-temperature stage (28) is connected across the legs of the at least one unipolar couple element. A third-temperature stage (30) is connected to the other of the two legs. Methods for cooling an object and for thermoelectric power conversion utilize the at least one unipolar couple element to respectively cool an object and produce electrical power.
    Type: Application
    Filed: November 25, 2003
    Publication date: October 12, 2006
    Inventors: Rama Venkatasubramanian, Kip Coonley, Edward Siivola, Michael Puchan, Randall Alley, Pratima Addepalli, Brooks O'Quinn, Thomas Colpitts, Mary Napier
  • Publication number: 20060086118
    Abstract: A structure, system and method for controlling a temperature of a heat generating device in a solid medium, wherein heat is extracted from the medium into at least one heat extraction device, the heat extraction device dissipates heat into an environment apart from the medium by a heat sink thermally coupled to the heat extraction device; and heat from the medium is dissipated into the heat sink by a first thermal interface material thermally coupling the heat sink to the medium.
    Type: Application
    Filed: October 22, 2004
    Publication date: April 27, 2006
    Applicant: Research Triangle Insitute
    Inventors: Rama Venkatasubramanian, Randall Alley, Pratima Addepalli, Anil Reddy, Edward Siivola, Brooks O'Quinn, Kip Coonley, John Posthill, Thomas Colpitts
  • Publication number: 20030099279
    Abstract: A thermoelectric structure and device including at least first and second material systems having different lattice constants and interposed in contact with each other, and a physical interface at which the at least first and second material systems are joined with a lattice mismatch and at which structural integrity of the first and second material systems is substantially maintained. The at least first and second material systems have a charge carrier transport direction normal to the physical interface and preferably periodically arranged in a superlattice structure.
    Type: Application
    Filed: October 7, 2002
    Publication date: May 29, 2003
    Applicant: Research Triangle Insitute
    Inventors: Rama Venkatasubramanian, Edward Siivola, Thomas Colpitts, Brooks O'Quinn