Patents by Inventor Ya-Jui Lee

Ya-Jui Lee 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: 9424926
    Abstract: A nonvolatile semiconductor device is provided that includes a substrate and a plurality of blocks forming a string. Each block is positioned on the substrate and includes a plurality of word lines disposed on the substrate. The string includes a single ground select line disposed at one side of the plurality of blocks, and a single string select line is disposed at another side of the plurality of blocks. In some embodiments, the word lines of the plurality of blocks define gaps separating each block of the string from neighboring blocks of the string. One or more dummy word lines may be disposed in each gap between blocks of the string. Corresponding methods of manufacturing the nonvolatile semiconductor device and manipulating the nonvolatile semiconductor device are provided.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: August 23, 2016
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Ya Jui Lee, Kuan Fu Chen
  • Publication number: 20160155508
    Abstract: A nonvolatile semiconductor device is provided that includes a substrate and a plurality of blocks forming a string. Each block is positioned on the substrate and includes a plurality of word lines disposed on the substrate. The string includes a single ground select line disposed at one side of the plurality of blocks, and a single string select line is disposed at another side of the plurality of blocks. In some embodiments, the word lines of the plurality of blocks define gaps separating each block of the string from neighboring blocks of the string. One or more dummy word lines may be disposed in each gap between blocks of the string. Corresponding methods of manufacturing the nonvolatile semiconductor device and manipulating the nonvolatile semiconductor device are provided.
    Type: Application
    Filed: February 4, 2016
    Publication date: June 2, 2016
    Inventors: Ya Jui Lee, Kuan Fu Chen
  • Publication number: 20160155510
    Abstract: A memory device and a method for operating the same are provided. The memory device includes a substrate, a plurality of word lines, and a plurality of dummy word lines. The word lines and the dummy word lines are located on the substrate. At least one side of each dummy word line is adjacent to the word line. At least one word line and at least one dummy word line form a group. The method for operating the memory device includes the following. At least one group is selected, and the group is operated. A first operational voltage is applied to the word line of the group. A second operational voltage is applied to the dummy word line of the group.
    Type: Application
    Filed: December 2, 2014
    Publication date: June 2, 2016
    Inventor: Ya-Jui Lee
  • Patent number: 9286984
    Abstract: A nonvolatile semiconductor device is provided that includes a substrate and a plurality of blocks forming a string. Each block is positioned on the substrate and includes a plurality of word lines disposed on the substrate. The string includes a single ground select line disposed at one side of the plurality of blocks, and a single string select line is disposed at another side of the plurality of blocks. In some embodiments, the word lines of the plurality of blocks define gaps separating each block of the string from neighboring blocks of the string. One or more dummy word lines may be disposed in each gap between blocks of the string. Corresponding methods of manufacturing the nonvolatile semiconductor device and manipulating the nonvolatile semiconductor device are provided.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: March 15, 2016
    Assignee: Macronix International Co., Ltd.
    Inventors: Ya Jui Lee, Kuan Fu Chen
  • Publication number: 20160005468
    Abstract: A nonvolatile semiconductor device is provided that includes a substrate and a plurality of blocks forming a string. Each block is positioned on the substrate and includes a plurality of word lines disposed on the substrate. The string includes a single ground select line disposed at one side of the plurality of blocks, and a single string select line is disposed at another side of the plurality of blocks. In some embodiments, the word lines of the plurality of blocks define gaps separating each block of the string from neighboring blocks of the string. One or more dummy word lines may be disposed in each gap between blocks of the string. Corresponding methods of manufacturing the nonvolatile semiconductor device and manipulating the nonvolatile semiconductor device are provided.
    Type: Application
    Filed: July 7, 2014
    Publication date: January 7, 2016
    Inventors: Ya Jui Lee, Kaun Fu Chen
  • Patent number: 8741754
    Abstract: A fabricating method of a non-volatile memory is provided. A tunneling dielectric layer and a first conductive layer are sequentially formed on a substrate. Isolation structures are formed in the first conductive layer, the tunneling dielectric layer and the substrate. The first conductive layer is patterned to form protruding portions. A portion of the isolation structures is removed, so that a top surface of each isolation structure is disposed between a top surface of the first conductive layer and a surface of the substrate. An inter-gate dielectric layer is formed on the substrate. A second conductive layer is formed on the inter-gate dielectric layer. The second conductive layer is patterned to form control gates, and the first conductive layer is patterned to form floating gates. The protruding portion of each floating gate is fully covered and surrounded by the control gate in any direction.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: June 3, 2014
    Assignee: Powerchip Technology Corporation
    Inventors: Ya-Jui Lee, Ying-Chia Lin
  • Patent number: 8502297
    Abstract: A non-volatile memory having a tunneling dielectric layer, a floating gate, a control gate, an inter-gate dielectric layer and a first doping region and a second doping region is provided. The tunneling dielectric layer is disposed on a substrate. The floating gate is disposed on the tunneling dielectric layer, and has a protruding portion. The control gate is disposed over the floating gate to cover and surround the protruding portion. The protruding portion of the floating gate is fully covered and surrounded by the control gate in any direction, including extending directions of bit lines, word lines and an included angle formed between the word line and the bit line. The inter-gate dielectric layer is disposed between the floating gate and the control gate. The first doping region and the second doping region are respectively disposed in the substrate at two sides of the control gate.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: August 6, 2013
    Assignee: Powerchip Technology Corporation
    Inventors: Ya-Jui Lee, Ying-Chia Lin
  • Publication number: 20120161221
    Abstract: A non-volatile memory having a tunneling dielectric layer, a floating gate, a control gate, an inter-gate dielectric layer and a first doping region and a second doping region is provided. The tunneling dielectric layer is disposed on a substrate. The floating gate is disposed on the tunneling dielectric layer, and has a protruding portion. The control gate is disposed over the floating gate to cover and surround the protruding portion. The protruding portion of the floating gate is fully covered and surrounded by the control gate in any direction, including extending directions of bit lines, word lines and an included angle formed between the word line and the bit line. The inter-gate dielectric layer is disposed between the floating gate and the control gate. The first doping region and the second doping region are respectively disposed in the substrate at two sides of the control gate.
    Type: Application
    Filed: February 22, 2011
    Publication date: June 28, 2012
    Applicant: POWERCHIP TECHNOLOGY CORPORATION
    Inventors: Ya-Jui Lee, Ying-Chia Lin