Patents by Inventor Arjit Ashok

Arjit Ashok 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: 10319456
    Abstract: The disclosure is related a method for testing and measuring the performances of electrical components on a semiconductor IC device through a test apparatus (also referred to as a testline) disposed in a scribe line between the semiconductor IC devices on a wafer. The test apparatus may include a built-in self-test (BIST) circuit and a duplication of the electrical components subjected to the performance measurement. Minimum and maximum testing voltages are provided to the test apparatus, where the range of voltage between the minimum and maximum testing voltages are divided into a plurality of testing operational voltages which are applied to the test apparatus. For each testing operational voltages, a memory array operation test is performed, where at least one of the testing operational voltages resulting in a performance failure is identified as the minimal operating voltage of the memory array.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: June 11, 2019
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chi-Hsu Chiu, Shih-Feng Huang, Yi-Sin Wang, Arjit Ashok
  • Publication number: 20190066815
    Abstract: The disclosure is related a method for testing and measuring the performances of electrical components on a semiconductor IC device through a test apparatus (also referred to as a testline) disposed in a scribe line between the semiconductor IC devices on a wafer. The test apparatus may include a built-in self-test (BIST) circuit and a duplication of the electrical components subjected to the performance measurement. Minimum and maximum testing voltages are provided to the test apparatus, where the range of voltage between the minimum and maximum testing voltages are divided into a plurality of testing operational voltages which are applied to the test apparatus. For each testing operational voltages, a memory array operation test is performed, where at least one of the testing operational voltages resulting in a performance failure is identified as the minimal operating voltage of the memory array.
    Type: Application
    Filed: January 25, 2018
    Publication date: February 28, 2019
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chi-Hsu Chiu, Shih-Feng Huang, Yi-Sin Wang, Arjit Ashok
  • Patent number: 9831453
    Abstract: Technologies are generally described for a four-terminal, gate-controlled, thin-film thyristor device. The thyristor device may essentially be an n-type thin-film transistor (TFT) with an additional emitter terminal. The thyristor device may exhibit an S-shaped negative differential resistance (NDR) characteristic resulting from conductance modulation. The conductance modulation may be caused by formation of a secondary channel for current flow due to an inherent structure of the device. The secondary channel may be formed in a semiconductor area within the device, the semiconductor area including a hole transporting organic semiconductor layer (HTL) and an electron transporting organic semiconductor layer (ETL). A gate terminal of the thyristor device may further allow onset of NDR characteristics to be controlled and may allow the device to be switched off.
    Type: Grant
    Filed: December 28, 2013
    Date of Patent: November 28, 2017
    Assignee: INDIAN INSTITUTE OF TECHNOLOGY KANPUR
    Inventors: Baquer Mazhari, Arjit Ashok
  • Publication number: 20160254469
    Abstract: Technologies are generally described for a four-terminal, gate-controlled, thin-film thyristor device. The thyristor device may essentially be an n-type thin-film transistor (TFT) with an additional emitter terminal. The thyristor device may exhibit an S-shaped negative differential resistance (NDR) characteristic resulting from conductance modulation. The conductance modulation may be caused by formation of a secondary channel for current flow due to an inherent structure of the device. The secondary channel may be formed in a semiconductor area within the device, the semiconductor area including a hole transporting organic semiconductor layer (HTL) and an electron transporting organic semiconductor layer (ETL). A gate terminal of the thyristor device may further allow onset of NDR characteristics to be controlled and may allow the device to be switched off.
    Type: Application
    Filed: December 28, 2013
    Publication date: September 1, 2016
    Applicant: Indian Institute of Technology Kanpur
    Inventors: Baquer Mazhari, Arjit Ashok