Patents by Inventor Chi-Kai Hsieh

Chi-Kai Hsieh 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).

  • Publication number: 20240312557
    Abstract: A memory with built-in synchronous-write-through (SWT) redundancy includes a plurality of memory input/output (IO) arrays, a plurality of SWT circuits, and at least one spare SWT circuit. The at least one spare SWT circuit is used to replace at least one of the plurality of SWT circuits that is defective.
    Type: Application
    Filed: February 16, 2024
    Publication date: September 19, 2024
    Applicant: MEDIATEK INC.
    Inventors: Che-Wei Chou, Ya-Ting Yang, Shu-Lin Lai, Chi-Kai Hsieh, Yi-Ping Kuo, Chi-Hao Hong, Jia-Jing Chen, Yi-Te Chiu, Jiann-Tseng Huang
  • Patent number: 9934828
    Abstract: Systems and methods are provided for a sense amplifier/write driver circuit. A system includes a set of transistors responsive to a memory cell, the set of transistors configured to operate as a sense amplifier in a first mode and to operate as a write driver in a second mode. One or more switches are configured to switch the set of transistors from the first mode to the second mode based on a control signal. Particular transistors of the set of transistors are configured by the one or more switches to amplify and retain data at a pair of input/output nodes for a period of time in the first mode. The particular transistors are further configured by the one or more switches to drive data to the pair of input/output nodes in the second mode.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: April 3, 2018
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Chi-Kai Hsieh, Cheng Hung Lee, Fu-An Wu
  • Patent number: 9934845
    Abstract: A semiconductor device comprising a first supply voltage, a second supply voltage, different from the first supply voltage; and a switching circuit. The switching circuit comprises an input configured to receive an input signal corresponding to the first supply voltage and an output configured to output an output signal corresponding to the second supply voltage. The switching circuit is a combined latch with a built-in level shifter that provides latching functionality and level shifting functionality and a leakage path is cut-off when the switching circuit is providing latching functionality.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: April 3, 2018
    Assignee: Taiwan Semiconductor Manufacturing Campany Limited
    Inventors: Hao-I Yang, Cheng Hung Lee, Chi-Kai Hsieh, Fu-An Wu, Tsung-Hsien Huang
  • Publication number: 20170345487
    Abstract: A semiconductor device comprising a first supply voltage, a second supply voltage, different from the first supply voltage; and a switching circuit. The switching circuit comprises an input configured to receive an input signal corresponding to the first supply voltage and an output configured to output an output signal corresponding to the second supply voltage. The switching circuit is a combined latch with a built-in level shifter that provides latching functionality and level shifting functionality and a leakage path is cut-off when the switching circuit is providing latching functionality.
    Type: Application
    Filed: January 13, 2017
    Publication date: November 30, 2017
    Inventors: Hao-I Yang, Cheng Hung Lee, Chi-Kai Hsieh, Fu-An Wu, Tsung-Hsien Huang
  • Publication number: 20170345465
    Abstract: Systems and methods are provided for a sense amplifier/write driver circuit. A system includes a set of transistors responsive to a memory cell, the set of transistors configured to operate as a sense amplifier in a first mode and to operate as a write driver in a second mode. One or more switches are configured to switch the set of transistors from the first mode to the second mode based on a control signal. Particular transistors of the set of transistors are configured by the one or more switches to amplify and retain data at a pair of input/output nodes for a period of time in the first mode. The particular transistors are further configured by the one or more switches to drive data to the pair of input/output nodes in the second mode.
    Type: Application
    Filed: January 25, 2017
    Publication date: November 30, 2017
    Inventors: Chi-Kai Hsieh, Cheng Hung Lee, Fu-An Wu
  • Patent number: 9679619
    Abstract: A sense amplifier includes a cross latch, a first pass gate, a second pass gate, a first data line, a second data line, a first circuit, and a second circuit. The cross latch has a first input/output (I/O) node and a second I/O node. The first pass gate is coupled between the first data line and the first I/O node. The second pass gate is coupled between the second data line and the second I/O node. The first circuit is coupled with the first I/O node and the second data line. The second circuit is coupled with the second I/O node and the first data line. The first circuit is configured to be turned off when the second data line has a first logical value and to be at least lightly turned on when the second data line has a voltage level between the first logical value and a second logical value different from the first logical value.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 13, 2017
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chi-Kai Hsieh, Hong-Chen Cheng, Cheng Hung Lee
  • Patent number: 8970256
    Abstract: The present disclosure relates to a differential sense amplifier comprising first and second cross-coupled inverters with first and second complimentary storage nodes. A first current control element changes a current through the first cross-coupled inverter based upon an output of a second cross-coupled inverter, and a second current control element changes a current through the second cross-coupled inverter based upon an output of the first cross-coupled inverter. Other devices and methods are also disclosed.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: March 3, 2015
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Cheng Hung Lee, Hektor Huang, Chi-Kai Hsieh, Shi-Wei Chang, Hong-Chen Cheng
  • Publication number: 20140266436
    Abstract: The present disclosure relates to a differential sense amplifier comprising first and second cross-coupled inverters with first and second complimentary storage nodes. A first current control element changes a current through the first cross-coupled inverter based upon an output of a second cross-coupled inverter, and a second current control element changes a current through the second cross-coupled inverter based upon an output of the first cross-coupled inverter. Other devices and methods are also disclosed.
    Type: Application
    Filed: May 7, 2013
    Publication date: September 18, 2014
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Cheng Hung Lee, Hektor Huang, Chi-Kai Hsieh, Shi-Wei Chang, Hong-Chen Cheng
  • Publication number: 20140269128
    Abstract: A sense amplifier includes a cross latch, a first pass gate, a second pass gate, a first data line, a second data line, a first circuit, and a second circuit. The cross latch has a first input/output (I/O) node and a second I/O node. The first pass gate is coupled between the first data line and the first I/O node. The second pass gate is coupled between the second data line and the second I/O node. The first circuit is coupled with the first I/O node and the second data line. The second circuit is coupled with the second I/O node and the first data line. The first circuit is configured to be turned off when the second data line has a first logical value and to be at least lightly turned on when the second data line has a voltage level between the first logical value and a second logical value different from the first logical value.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chi-Kai HSIEH, Hong-Chen CHENG, Cheng Hung LEE