Patents by Inventor Gia-Hua Hsieh

Gia-Hua 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).

  • Patent number: 7755925
    Abstract: A static random access memory comprising a column driver, a row driver, a cell, and a control unit is disclosed. The column driver selects a first word line or a second word line. The row provides data to a first bit line and a second bit line. The data of the first bit line is opposite to that of the second bit line. The control unit controls the voltage of the cell. In normal mode, the voltage of the cell is equal to a second voltage. In stand-by mode, the voltage of the cell exceeds the second voltage.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: July 13, 2010
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: Jui-Lung Chen, Gia-Hua Hsieh, Yi-Hsun Chung, Chia-Chiuan Chang, Yu-Chih Yeh, Ho-Hsiang Chen
  • Publication number: 20080137398
    Abstract: A static random access memory comprising a column driver, a row driver, a cell, and a control unit is disclosed. The column driver selects a first word line or a second word line. The row provides data to a first bit line and a second bit line. The data of the first bit line is opposite to that of the second bit line. The control unit controls the voltage of the cell. In normal mode, the voltage of the cell is equal to a second voltage. In stand-by mode, the voltage of the cell exceeds the second voltage.
    Type: Application
    Filed: December 11, 2006
    Publication date: June 12, 2008
    Inventors: Jui-Lung Chen, Gia-Hua Hsieh, Yi-Hsun Chung, Chia-Chiuan Chang, Yu-Chih Yeh, Ho-Hsiang Chen
  • Patent number: 7217616
    Abstract: A non-volatile memory cell comprising a transistor and two plane capacitors. In the memory cell, a switching device is disposed on a substrate, a first plane capacitor having a first doped region and a second plane capacitor having a second doped region. The switching device and the first and second plane capacitors share a common polysilicon floating gate configured to retain charge as a result of programming the memory cell. The memory cell is configured to be erased by tunneling between the first doped region and the common polysilicon floating gate without causing junction breakdown within the memory cell. The first and second doped regions are formed in the substrate before forming the common polysilicon floating gate such that the capacitance of the first and second plane capacitors are constant when the memory cell operates within an operating voltage range.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: May 15, 2007
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: Chao-Ming Koh, Jia-Ching Doong, Gia-Hua Hsieh
  • Publication number: 20060258101
    Abstract: A non-volatile memory cell comprising a transistor and two plane capacitors. In the memory cell, a switching device is disposed on a substrate, a first plane capacitor having a first doped region and a second plane capacitor having a second doped region. The switching device and the first and second plane capacitors share a common polysilicon floating gate configured to retain charge as a result of programming the memory cell. The memory cell is configured to be erased by tunneling between the first doped region and the common polysilicon floating gate without causing junction breakdown within the memory cell. The first and second doped regions are formed in the substrate before forming the common polysilicon floating gate such that the capacitance of the first and second plane capacitors are constant when the memory cell operates within an operating voltage range.
    Type: Application
    Filed: July 6, 2006
    Publication date: November 16, 2006
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Chao-Ming Koh, Jia-Ching Doong, Gia-Hua Hsieh
  • Patent number: 7115938
    Abstract: A non-volatile memory cell comprising a transistor and two plane capacitors. In the memory cell, a switching device is disposed on a substrate, a first plane capacitor having a first doped region and a second plane capacitor having a second doped region. The switching device and the first and second plane capacitors share a common ploysilicon floating gate configured to retain charge as a result of programming the memory cell. The memory cell is configured to be erased by tunneling between the first doped region and the common ploysilicon floating gate without causing junction breakdown within the memory cell. The first and second doped regions are formed in the substrate before forming the common ploysilicon floating gate such that the capacitance of the first and second plane capacitors are constant when the memory cell operates within an operating voltage range.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: October 3, 2006
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: Chao-Ming Koh, Jia-Ching Doong, Gia-Hua Hsieh
  • Publication number: 20050236659
    Abstract: A non-volatile memory cell comprising a transistor and two plane capacitors. In the memory cell, a switching device is disposed on a substrate, a first plane capacitor having a first doped region and a second plane capacitor having a second doped region. The switching device and the first and second plane capacitors share a common ploysilicon floating gate configured to retain charge as a result of programming the memory cell. The memory cell is configured to be erased by tunneling between the first doped region and the common ploysilicon floating gate without causing junction breakdown within the memory cell. The first and second doped regions are formed in the substrate before forming the common ploysilicon floating gate such that the capacitance of the first and second plane capacitors are constant when the memory cell operates within an operating voltage range.
    Type: Application
    Filed: April 21, 2004
    Publication date: October 27, 2005
    Inventors: Chao-Ming Koh, Jia-Ching Doong, Gia-Hua Hsieh