Patents by Inventor Tzung-Shen Chen

Tzung-Shen Chen 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: 9412460
    Abstract: An integrated circuit device comprises a semiconductor substrate, a first memory block on the substrate comprising NAND memory cells, a second memory block on the substrate comprising NAND memory cells, and controller circuitry. The first and second memory blocks are configurable to store data for a first pattern of data usage in response to a first operation algorithm to read, program and erase data, and for a second pattern of data usage in response to a second operation algorithm to read, program and erase data, respectively. The controller circuitry is coupled to the first and second memory blocks, and is configured to execute the first and second operation algorithms, wherein a word line pass voltage for read operations applied in the first operation algorithm is at a lower voltage level than a second word line pass voltage for read operations applied in the second operation algorithm.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: August 9, 2016
    Assignee: Macronix International Co., Ltd.
    Inventors: Tzung Shen Chen, Shuo Nan Hong, Yi Ching Liu, Chun-Hsiung Hung
  • Patent number: 9146569
    Abstract: A regulator comprises an amplifier, a bias circuit, and a current trimming circuit. The bias circuit is coupled to the amplifier and supplies a first bias current to the amplifier in a first mode of a system including the regulator. The current trimming circuit is coupled to the bias circuit to adjust the first bias current.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: September 29, 2015
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Chia-Ching Li, Hsien-Hung Wu, Hsin-Yi Ho, Han-Sung Chen, Chun-Hsiung Hung, Tzung-Shen Chen
  • Publication number: 20150063023
    Abstract: An integrated circuit device comprises a semiconductor substrate, a first memory block on the substrate comprising NAND memory cells, a second memory block on the substrate comprising NAND memory cells, and controller circuitry. The first and second memory blocks are configurable to store data for a first pattern of data usage in response to a first operation algorithm to read, program and erase data, and for a second pattern of data usage in response to a second operation algorithm to read, program and erase data, respectively. The controller circuitry is coupled to the first and second memory blocks, and is configured to execute the first and second operation algorithms, wherein a word line pass voltage for read operations applied in the first operation algorithm is at a lower voltage level than a second word line pass voltage for read operations applied in the second operation algorithm.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 5, 2015
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Tzung Shen Chen, Shuo Nan Hong, Yi Ching Liu, Chun-Hsiung Hung
  • Patent number: 8902656
    Abstract: An integrated circuit device comprises a semiconductor substrate, a first memory block on the substrate comprising NAND memory cells, a second memory block on the substrate comprising NAND memory cells, and controller circuitry. The first and second memory blocks are configurable to store data for a first pattern of data usage in response to a first operation algorithm to read, program and erase data, and for a second pattern of data usage in response to a second operation algorithm to read, program and erase data, respectively. The controller circuitry is coupled to the first and second memory blocks, and is configured to execute the first and second operation algorithms, wherein a word line pass voltage for read operations applied in the first operation algorithm is at a lower voltage level than a second word line pass voltage for read operations applied in the second operation algorithm.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: December 2, 2014
    Assignee: Macronix International Co., Ltd.
    Inventors: Tzung-Shen Chen, Shuo-Nan Hong, Yi-Ching Liu, Chun-Hsiung Hung
  • Publication number: 20140266105
    Abstract: A regulator comprises an amplifier, a bias circuit, and a current trimming circuit. The bias circuit is coupled to the amplifier and supplies a first bias current to the amplifier in a first mode of a system including the regulator. The current trimming circuit is coupled to the bias circuit to adjust the first bias current.
    Type: Application
    Filed: April 15, 2013
    Publication date: September 18, 2014
    Applicant: Macronix International Co., Ltd.
    Inventors: CHIA-CHING LI, HSIEN-HUNG WU, HSIN-YI HO, HAN-SUNG CHEN, CHUN-HSIUNG HUNG, TZUNG-SHEN CHEN
  • Publication number: 20130294155
    Abstract: An integrated circuit device comprises a semiconductor substrate, a first memory block on the substrate comprising NAND memory cells, a second memory block on the substrate comprising NAND memory cells, and controller circuitry. The first and second memory blocks are configurable to store data for a first pattern of data usage in response to a first operation algorithm to read, program and erase data, and for a second pattern of data usage in response to a second operation algorithm to read, program and erase data, respectively. The controller circuitry is coupled to the first and second memory blocks, and is configured to execute the first and second operation algorithms, wherein a word line pass voltage for read operations applied in the first operation algorithm is at a lower voltage level than a second word line pass voltage for read operations applied in the second operation algorithm.
    Type: Application
    Filed: January 25, 2013
    Publication date: November 7, 2013
    Inventors: Tzung-Shen Chen, Shuo-Nan Hong, Yi-Ching Liu, Chun-Hsiung Hung
  • Publication number: 20080282120
    Abstract: A memory structure is provided. The memory structure includes a memory array, an error correct code (ECC) unit, and a comparator. The memory array includes at least one memory cell being written and storing at least one original data. The ECC unit is for reading at least one tested data from the at least one memory cell, correcting the at least one tested data when there is an error occurred in the at least one tested data and outputting at least one ECC data accordingly. The comparator is for determining whether the at least one original data is substantially the same as the at least one ECC data or not and outputting an output signal indicating whether the at least one memory cell passes or fails.
    Type: Application
    Filed: May 11, 2007
    Publication date: November 13, 2008
    Inventors: Chun-Yu Liao, Tzung-Shen Chen
  • Patent number: 7432739
    Abstract: A low voltage complementary metal oxide semiconductor (CMOS) process tri-state buffer includes a logic device, a biasing device and a switch device. The logic device receives an input signal and an enable signal and generates a first control signal and a second control signal. The biasing device receives the first control signal and thus controls a voltage level of a third control signal. The switch device receives the second and third control signals and respectively couples an output terminal to a first external voltage source and a second external voltage source when the second and third control signals are enabled. When the enable signal is disabled, the second and third control signals are simultaneously disabled so that the output terminal is floating with respect to the first and second external voltage sources and the output terminal is held in a high impedance state.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: October 7, 2008
    Assignee: Macronix International Co., Ltd.
    Inventors: Tzung-Shen Chen, Ti-Wen Chen, Chun-Yu Liao
  • Publication number: 20080100340
    Abstract: A low voltage complementary metal oxide semiconductor (CMOS) process tri-state buffer includes a logic device, a biasing device and a switch device. The logic device receives an input signal and an enable signal and generates a first control signal and a second control signal. The biasing device receives the first control signal and thus controls a voltage level of a third control signal. The switch device receives the second and third control signals and respectively couples an output terminal to a first external voltage source and a second external voltage source when the second and third control signals are enabled. When the enable signal is disabled, the second and third control signals are simultaneously disabled so that the output terminal is floating with respect to the first and second external voltage sources and the output terminal is held in a high impedance state.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 1, 2008
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Tzung-Shen Chen, Ti-Wen Chen, Chun-Yu Liao