Patents by Inventor Lejun HU

Lejun HU 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: 9200968
    Abstract: An accurate, cost-efficient temperature sensor may be integrated into an integrated circuit (IC) using common materials as the IC's interconnect metallization. The temperature sensor may include an impedance element having a length of metal made of the interconnect metal, a current source connected between a first set of contacts at opposite ends of the impedance element, and an analog-to-digital converter connected between a second set of contacts at opposite ends of the impedance element. The temperature sensor may exploits the proportional relationship between the metal's resistance and temperature to measure ambient temperature. Alternatively, such a temperature sensor may be used on disposable chemical sensors where the impedance element is made of a common metal as conductors that connect a sensor reactant to sensor contacts. In either case, because the impedance element is formed of a common metal as other interconnect, it is expected to incur low manufacturing costs.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: December 1, 2015
    Assignee: ANALOG DEVICES, INC.
    Inventors: Michael Coln, Alain Valentin Guery, Lejun Hu
  • Patent number: 8525299
    Abstract: A semiconductor device formed on a substrate includes a first diode junction formation, a second diode junction formation, and at least one through-silicon-via (TSV), in which a cathode and an anode of the first diode are cross-connected to an anode and cathode of the second diode through the at least one TSV for achieving electrical robustness in through-silicon-via based integrated circuits, including photosensitive devices and circuits for signal processing applications.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: September 3, 2013
    Assignee: Analog Devices, Inc.
    Inventors: Lejun Hu, Srivatsan Parthasarathy, Michael Coln, Javier Salcedo
  • Publication number: 20130175669
    Abstract: A semiconductor device formed on a substrate includes a first diode junction formation, a second diode junction formation, and at least one through-silicon-via (TSV), in which a cathode and an anode of the first diode are cross-connected to an anode and cathode of the second diode through the at least one TSV for achieving electrical robustness in through-silicon-via based integrated circuits, including photosensitive devices and circuits for signal processing applications.
    Type: Application
    Filed: March 6, 2013
    Publication date: July 11, 2013
    Applicant: Analog Devices, Inc.
    Inventors: Lejun HU, Srivatsan Parthasarathy, Michael COLN, Javier SALCEDO
  • Publication number: 20130119502
    Abstract: A semiconductor device formed on a substrate includes a first diode junction formation, a second diode junction formation, and at least one through-silicon-via (TSV), in which a cathode and an anode of the first diode are cross-connected to an anode and cathode of the second diode through the at least one TSV for achieving electrical robustness in through-silicon-via based integrated circuits, including photosensitive devices and circuits for signal processing applications.
    Type: Application
    Filed: November 16, 2011
    Publication date: May 16, 2013
    Applicant: ANALOG DEVICES, INC.
    Inventors: Lejun HU, Srivatsan PARTHASARATHY, Michael COLN, Javier SALCEDO
  • Patent number: 8441104
    Abstract: A semiconductor device formed on a substrate includes a first diode junction formation, a second diode junction formation, and at least one through-silicon-via (TSV), in which a cathode and an anode of the first diode are cross-connected to an anode and cathode of the second diode through the at least one TSV for achieving electrical robustness in through-silicon-via based integrated circuits, including photosensitive devices and circuits for signal processing applications.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: May 14, 2013
    Assignee: Analog Devices, Inc.
    Inventors: Lejun Hu, Srivatsan Parthasarathy, Michael Coln, Javier Salcedo
  • Publication number: 20130070805
    Abstract: An accurate, cost-efficient temperature sensor may be integrated into an integrated circuit (IC) using common materials as the IC's interconnect metallization. The temperature sensor may include an impedance element having a length of metal made of the interconnect metal, a current source connected between a first set of contacts at opposite ends of the impedance element, and an analog-to-digital converter connected between a second set of contacts at opposite ends of the impedance element. The temperature sensor may exploits the proportional relationship between the metal's resistance and temperature to measure ambient temperature. Alternatively, such a temperature sensor may be used on disposable chemical sensors where the impedance element is made of a common metal as conductors that connect a sensor reactant to sensor contacts. In either case, because the impedance element is formed of a common metal as other interconnect, it is expected to incur low manufacturing costs.
    Type: Application
    Filed: July 30, 2012
    Publication date: March 21, 2013
    Applicant: ANALOG DEVICES, INC.
    Inventors: Michael COLN, Alain Valentin GUERY, Lejun HU