Patents by Inventor Carl Arft

Carl Arft 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: 11909354
    Abstract: One or more heating elements are provided to heat a MEMS component (such as a resonator) to a temperature higher than an ambient temperature range in which the MEMS component is intended to operate—in effect, heating the MEMS component and optionally related circuitry to a steady-state “oven” temperature above that which would occur naturally during component operation and thereby avoiding temperature-dependent performance variance/instability (frequency, voltage, propagation delay, etc.). In a number of embodiments, an IC package is implemented with distinct temperature-isolated and temperature-interfaced regions, the former bearing or housing the MEMS component and subject to heating (i.e., to oven temperature) by the one or more heating elements while the latter is provided with (e.g., disposed adjacent) one or more heat dissipation paths to discharge heat generated by transistor circuitry (i.e., expel heat from the integrated circuit package).
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: February 20, 2024
    Assignee: SiTime Corporation
    Inventors: Carl Arft, Aaron Partridge, Markus Lutz, Charles I. Grosjean
  • Patent number: 11543301
    Abstract: A micromachined apparatus includes micromachined thermistor having first and second ends physically and thermally coupled to a substrate via first and second anchor structures to enable a temperature-dependent resistance of the micromachined thermistor to vary according to a time-varying temperature of the substrate. The micromachined thermistor has a length, from the first end to the second end, greater than a linear distance between the first and second anchor structures.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: January 3, 2023
    Assignee: SiTime Corporation
    Inventors: Carl Arft, Aaron Partridge, Paul M. Hagelin
  • Publication number: 20220360218
    Abstract: One or more heating elements are provided to heat a MEMS component (such as a resonator) to a temperature higher than an ambient temperature range in which the MEMS component is intended to operate—in effect, heating the MEMS component and optionally related circuitry to a steady-state “oven” temperature above that which would occur naturally during component operation and thereby avoiding temperature-dependent performance variance/instability (frequency, voltage, propagation delay, etc.). In a number of embodiments, an IC package is implemented with distinct temperature-isolated and temperature-interfaced regions, the former bearing or housing the MEMS component and subject to heating (i.e., to oven temperature) by the one or more heating elements while the latter is provided with (e.g., disposed adjacent) one or more heat dissipation paths to discharge heat generated by transistor circuitry (i.e., expel heat from the integrated circuit package).
    Type: Application
    Filed: May 25, 2022
    Publication date: November 10, 2022
    Inventors: Carl Arft, Aaron Partridge, Markus Lutz, Charles I. Grosjean
  • Patent number: 11374535
    Abstract: One or more heating elements are provided to heat a MEMS component (such as a resonator) to a temperature higher than an ambient temperature range in which the MEMS component is intended to operate—in effect, heating the MEMS component and optionally related circuitry to a steady-state “oven” temperature above that which would occur naturally during component operation and thereby avoiding temperature-dependent performance variance/instability (frequency, voltage, propagation delay, etc.). In a number of embodiments, an IC package is implemented with distinct temperature-isolated and temperature-interfaced regions, the former bearing or housing the MEMS component and subject to heating (i.e., to oven temperature) by the one or more heating elements while the latter is provided with (e.g., disposed adjacent) one or more heat dissipation paths to discharge heat generated by transistor circuitry (i.e., expel heat from the integrated circuit package).
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: June 28, 2022
    Assignee: SiTime Corporation
    Inventors: Carl Arft, Aaron Partridge, Markus Lutz, Charles I. Grosjean
  • Publication number: 20200186084
    Abstract: One or more heating elements are provided to heat a MEMS component (such as a resonator) to a temperature higher than an ambient temperature range in which the MEMS component is intended to operate—in effect, heating the MEMS component and optionally related circuitry to a steady-state “oven” temperature above that which would occur naturally during component operation and thereby avoiding temperature-dependent performance variance/instability (frequency, voltage, propagation delay, etc.). In a number of embodiments, an IC package is implemented with distinct temperature-isolated and temperature-interfaced regions, the former bearing or housing the MEMS component and subject to heating (i.e., to oven temperature) by the one or more heating elements while the latter is provided with (e.g., disposed adjacent) one or more heat dissipation paths to discharge heat generated by transistor circuitry (i.e., expel heat from the integrated circuit package).
    Type: Application
    Filed: November 29, 2019
    Publication date: June 11, 2020
    Inventors: Carl Arft, Aaron Partridge, Markus Lutz, Charles I. Grosjean
  • Patent number: 10458858
    Abstract: A micromachined apparatus includes micromachined thermistor having first and second ends physically and thermally coupled to a substrate via first and second anchor structures to enable a temperature-dependent resistance of the micromachined thermistor to vary according to a time-varying temperature of the substrate. The micromachined thermistor has a length, from the first end to the second end, greater than a linear distance between the first and second anchor structures.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: October 29, 2019
    Assignee: SiTime Corporation
    Inventors: Carl Arft, Aaron Partridge, Paul M. Hagelin
  • Patent number: 9945734
    Abstract: A micromachined apparatus includes micromachined thermistor having first and second ends physically and thermally coupled to a substrate via first and second anchor structures to enable a temperature-dependent resistance of the micromachined thermistor to vary according to a time-varying temperature of the substrate. The micromachined thermistor has a length, from the first end to the second end, greater than a linear distance between the first and second anchor structures.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: April 17, 2018
    Assignee: SiTime Corporation
    Inventors: Carl Arft, Aaron Partridge, Paul M. Hagelin
  • Patent number: 9677948
    Abstract: A micromachined apparatus includes micromachined thermistor having first and second ends physically and thermally coupled to a substrate via first and second anchor structures to enable a temperature-dependent resistance of the micromachined thermistor to vary according to a time-varying temperature of the substrate. The micromachined thermistor has a length, from the first end to the second end, greater than a linear distance between the first and second anchor structures.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: June 13, 2017
    Assignee: SiTime Corporation
    Inventors: Carl Arft, Aaron Partridge, Paul M. Hagelin
  • Patent number: 9022644
    Abstract: The present inventions, in one aspect, are directed to a temperature sensing apparatus comprising a micromachined thermistor configured to output voltage and/or current signals which are/is correlated to an ambient temperature. The micromachined thermistor includes a micromachined thermistor structure suspended over and released from the substrate, wherein the micromachined thermistor structure includes a temperature dependent characteristic (e.g., resistance to an electrical current), and electrical contacts connected to the micromachined thermistor structure, wherein the electrical contacts are adapted to conduct the voltage and/or current signals. The apparatus, in one aspect, includes measurement circuitry, to generate data which is representative of the ambient temperature using the electrical resistance of the micromachined thermistor structure.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: May 5, 2015
    Assignee: SiTime Corporation
    Inventors: Carl Arft, Aaron Partridge, Paul M. Hagelin