Patents by Inventor Michael W. Wiemer

Michael W. Wiemer 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).

  • Contact lens battery management
    Patent number: 11681160
    Abstract: A contact lens battery management system (BMS) monitors battery health in an electronic contact lens. A battery made with high-internal-resistance cells is coupled on a cell-by-cell basis to input switches of a power management integrated circuit (PMIC) that monitors, detects, and isolates faulty circuit components.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: June 20, 2023
    Assignee: Tectus Corporation
    Inventors: Mohammad Hekmat, Ashkan Olyaei, Michael W Wiemer
  • CONTACT LENS BATTERY MANAGEMENT
    Publication number: 20210096398
    Abstract: A contact lens battery management system (BMS) monitors battery health in an electronic contact lens. A battery made with high-internal-resistance cells is coupled on a cell-by-cell basis to input switches of a power management integrated circuit (PMIC) that monitors, detects, and isolates faulty circuit components.
    Type: Application
    Filed: August 26, 2020
    Publication date: April 1, 2021
    Applicant: Tectus Corporation
    Inventors: Mohammad HEKMAT, Ashkan Olyaei, Michael W WIEMER
  • Non-alloyed contacts for III-V based solar cells
    Patent number: 9337360
    Abstract: A multi junction solar cell is provided with a non-alloyed ohmic contact metallization stack by inversion of the top semiconductor layer from n-type to p-type and including the utilization of a tunnel junction. Alternatively, the non-alloyed ohmic contact can be achieved by changing the top semiconductor layer from a higher bandgap material to a lower bandgap material.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: May 10, 2016
    Assignee: Solar Junction Corporation
    Inventors: Michael W. Wiemer, Homan B. Yuen, Vijit A. Sabnis, Ting Liu, Pranob Misra, Michael J. Sheldon, Onur Fidaner
  • Methods and apparatus for identifying and reducing semiconductor failures
    Patent number: 9142615
    Abstract: The present disclosure provides multi-junction solar cell structures and fabrication methods thereof that improve electrical testing capability and reduce chip failure rates. In the present invention a special masking pattern is used in the layout such that all or some of the epitaxial layers are etched away in the corner areas of each solar cell. Consequently, the semiconductor substrate or one or more of the interconnections between junctions become accessible from the top (the side facing the sun) to make electrical connections.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: September 22, 2015
    Assignee: Solar Junction Corporation
    Inventors: Onur Fidaner, Daniel Derkacs, Paul F. Lamarche, Michael W. Wiemer
  • Method for making semiconductor light detection devices
    Patent number: 8912617
    Abstract: A semiconductor light detection device fabrication technique is provided in which the cap etch and anti-reflection coating steps are performed in a single, self-aligned lithography module.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: December 16, 2014
    Assignee: Solar Junction Corporation
    Inventors: Lan Zhang, Ewelina N. Lucow, Onur Fidaner, Michael W. Wiemer
  • METHODS AND APPARATUS FOR IDENTIFYING AND REDUCING SEMICONDUCTOR FAILURES
    Publication number: 20140097522
    Abstract: The present disclosure provides multi-junction solar cell structures and fabrication methods thereof that improve electrical testing capability and reduce chip failure rates. In the present invention a special masking pattern is used in the layout such that all or some of the epitaxial layers are etched away in the corner areas of each solar cell. Consequently, the semiconductor substrate or one or more of the interconnections between junctions become accessible from the top (the side facing the sun) to make electrical connections.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 10, 2014
    Applicant: Solar Junction Corporation
    Inventors: ONUR FIDANER, DANIEL DERKACS, PAUL F. LAMARCHE, MICHAEL W. WIEMER
  • METHOD FOR MAKING SEMICONDUCTOR LIGHT DETECTION DEVICES
    Publication number: 20130105930
    Abstract: A semiconductor light detection device fabrication technique is provided in which the cap etch and anti-reflection coating steps are performed in a single, self-aligned lithography module.
    Type: Application
    Filed: October 27, 2011
    Publication date: May 2, 2013
    Applicant: Solar Junction Corporation
    Inventors: Lan Zhang, Ewelina N. Lucow, Onur Fidaner, Michael W. Wiemer
  • MULTIJUNCTION SOLAR CELLS FORMED ON N-DOPED SUBSTRATES
    Publication number: 20110114163
    Abstract: An “n-on-p” type multijunction solar cell structure is disclosed using an n-type substrate for the epitaxial growth of III-V semiconductor material, wherein a “p-on-n” tunnel junction diode is disposed between the substrate and one or more heteroepitaxial layers of III-V semiconductor materials.
    Type: Application
    Filed: November 11, 2010
    Publication date: May 19, 2011
    Applicant: Solar Junction Corporation
    Inventors: Michael W. Wiemer, Homan B. Yuen, Vijit A. Sabnis, Michael J. Sheldon
  • Functional Integration Of Dilute Nitrides Into High Efficiency III-V Solar Cells
    Publication number: 20100319764
    Abstract: Tunnel junctions are improved by providing a rare earth-Group V interlayer such as erbium arsenide (ErAs) to yield a mid-gap state-assisted tunnel diode structure. Such tunnel junctions survive thermal energy conditions (time/temperature) in the range required for dilute nitride material integration into III-V multi-junction solar cells.
    Type: Application
    Filed: June 21, 2010
    Publication date: December 23, 2010
    Applicant: Solar Junction Corp.
    Inventors: Michael W. Wiemer, Homan B. Yuen, Vijit A. Sabnis, Michael J. Sheldon, Ilya Fushman