Patents by Inventor Chang-Ting Chen

Chang-Ting 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).

  • Publication number: 20080151620
    Abstract: A method for improving an over erasing effect of a charge-trapping memory cell. The charge-trapping memory cell has a transistor, which has a first terminal coupled to a first bit line and a second terminal coupled to a second bit line. First, the method erases the charge-trapping memory cell. Then, after the charge-trapping memory cell is completely erased, the first bit line is electrically connected to the second bit line to make a voltage level of the first bit line equal a voltage level of the second bit line such that the voltage level of the first terminal of the transistor equals the voltage level of the second terminal of the transistor.
    Type: Application
    Filed: December 20, 2006
    Publication date: June 26, 2008
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Chang-Ting Chen, Chun-Jen Huang
  • Patent number: 7391672
    Abstract: A method for accessing a memory sequentially. The memory has (m+1) bit lines and at least one row of transistors, wherein m is a positive integer. This method includes the following steps. First, voltage levels of first and second terminals of the transistors are equalized to a ground voltage in a pre-discharge period. Next, the voltage levels of the first and second terminals of the nth transistor are respectively transformed into a source voltage and a drain voltage in an nth reading period, and the voltage level of the second terminal of the (n+1)th transistor is transformed into an isolation voltage, wherein n is a positive integer smaller than m. Thereafter, the voltage levels of the first and second terminals of the mth transistor are respectively transformed into the source voltage and the drain voltage in an mth reading period. The source voltage equals the ground voltage.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: June 24, 2008
    Assignee: Macronix International Co., Ltd.
    Inventors: Chang-Ting Chen, Chung-Kuang Chen
  • Patent number: 7379363
    Abstract: Various methods and apparatuses permit high speed reads of memory. Portions of data are copied and stored on other word lines. By reading a copy of data that is stored on memory cells accessed by a word line that is already precharged, a latency specification can be met which does not allow time for precharging a second word line.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: May 27, 2008
    Assignee: Macronix International Co., Ltd.
    Inventor: Chang-Ting Chen
  • Publication number: 20070189089
    Abstract: Various methods and apparatuses permit high speed reads of memory. Portions of data are copied and stored on other word lines. By reading a copy of data that is stored on memory cells accessed by a word line that is already precharged, a latency specification can be met which does not allow time for precharging a second word line.
    Type: Application
    Filed: March 27, 2007
    Publication date: August 16, 2007
    Applicant: Macronix International Co., Ltd.
    Inventor: Chang-Ting Chen
  • Patent number: 7212457
    Abstract: Various methods and apparatuses permit high speed reads of memory. Portions of data are copied and stored on other word lines. By reading a copy of data that is stored on memory cells accessed by a word line that is already precharged, a latency specification can be met which does not allow time for precharging a second word line.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: May 1, 2007
    Assignee: Macronix International Co., Ltd.
    Inventor: Chang-Ting Chen
  • Patent number: 7209406
    Abstract: A memory device includes an array of storage cells, multiple words lines, where each word line corresponds to a row in the array of storage cells, and multiple bit lines, where each bit line corresponds to a column in the array of storage cells. The device further includes a row decoder attached to the multiple word lines. The row decoder is operable to assert and to de-assert individual word lines. Each of the word lines has a head portion adjacent to where the word line is attached to the row decoder. The memory device supports a column decode sequence for accessing multiple storage cells within a row of the array. The column decode sequence both commences and terminates at or near the head portion of the word line corresponding to the row.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: April 24, 2007
    Assignee: Macronix International Co., Ltd.
    Inventors: Chi-Ming Chen, Chang-Ting Chen
  • Publication number: 20060262616
    Abstract: Various methods and apparatuses permit high speed reads of memory. Portions of data are copied and stored on other word lines. By reading a copy of data that is stored on memory cells accessed by a word line that is already precharged, a latency specification can be met which does not allow time for precharging a second word line.
    Type: Application
    Filed: May 18, 2005
    Publication date: November 23, 2006
    Applicant: Macronix International Co., Ltd.
    Inventor: Chang-Ting Chen
  • Publication number: 20060262634
    Abstract: In one embodiment, a memory device includes an array of storage cells, multiple words lines, where each word line corresponds to a row in the array of storage cells, and multiple bit lines, where each bit line corresponds to a column in the array of storage cells. The device further includes a row decoder attached to the multiple word lines. The row decoder is operable to assert and to de-assert individual word lines. Each of the word lines has a head portion adjacent to where the word line is attached to the row decoder. The memory device supports a column decode sequence for accessing multiple storage cells within a row of the array. The column decode sequence both commences and terminates at or near the head portion of the word line corresponding to the row.
    Type: Application
    Filed: May 19, 2005
    Publication date: November 23, 2006
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Chi-Ming Chen, Chang-Ting Chen
  • Patent number: 6862203
    Abstract: A semiconductor memory with shielding effect is disclosed in the invention. The memory includes at least a plurality of word lines, one ground line control unit, and a plurality of memory units. Every memory unit includes a primary bit line, a ground line, a first equivalent switch, and a second equivalent switch. The primary bit line is enabled by a control signal. The ground line and the ground line control unit are electrically connected. The first equivalent switch is coupled to both the primary bit line and the ground line, and is controlled by the control signal of the previous memory unit. The second equivalent switch is coupled to both the primary bit line and the ground line of the next memory unit, and is controlled by the control signal of the next memory unit.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: March 1, 2005
    Assignee: Macronix International Co., Ltd.
    Inventors: Wen-Chieh Lee, Chang-Ting Chen
  • Publication number: 20040240247
    Abstract: A semiconductor memory with shielding effect is disclosed in the invention. The memory includes at least a plurality of word lines, one ground line control unit, and a plurality of memory units. Every memory unit includes a primary bit line, a ground line, a first equivalent switch, and a second equivalent switch. The primary bit line is enabled by a control signal. The ground line and the ground line control unit are electrically connected. The first equivalent switch is coupled to both the primary bit line and the ground line, and is controlled by the control signal of the previous memory unit. The second equivalent switch is coupled to both the primary bit line and the ground line of the next memory unit, and is controlled by the control signal of the next memory unit.
    Type: Application
    Filed: September 10, 2003
    Publication date: December 2, 2004
    Inventors: Wen-Chieh Lee, Chang-Ting Chen