Patents by Inventor Tung Chang

Tung Chang 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: 20100216508
    Abstract: A mobile phone device comprises the following: a processor; a first display controller for driving an internal display of the mobile phone device; and a second display controller for driving an external display, wherein the external display is connectable to the second display controller via a connector.
    Type: Application
    Filed: February 23, 2010
    Publication date: August 26, 2010
    Applicant: AUGUSTA TECHNOLOGY, INC.
    Inventors: Zhenbiao Ma, Binhua Shen, John Rowland, Tung Chang
  • Publication number: 20100216506
    Abstract: A mobile phone device utilizing a first communications protocol and a second communications protocol, comprises: a first system having a general processor, a memory, a first communications system providing for the first communications protocol and utilizing a first communications protocol stack, and a first link; a second system having a dedicated communications accelerator providing for the second communications protocol and utilizing a second communications protocol stack, and a second link; wherein the first link and the second link are connected; and wherein the memory in the first system holds the first communications protocol stack and the second communications protocol stack.
    Type: Application
    Filed: February 23, 2010
    Publication date: August 26, 2010
    Applicant: AUGUSTA TECHNOLOGY, INC.
    Inventors: Tung Chang, Ruei-Shiang Suen, Andrea Chen, Baoguo Yang, Yue Chen
  • Publication number: 20100213535
    Abstract: Semiconductor devices having reduced parasitic current and methods of malting the semiconductor devices are provided. Further provided are memory devices having reduced adjacent wordline disturb. The memory devices contain wordlines formed over a semiconductor substrate, wherein at least one wordline space is formed between the wordlines. Adjacent wordline disturb is reduced by implanting one or more of indium, boron, and a combination of boron and indium in the surface of the at least one wordline space.
    Type: Application
    Filed: February 23, 2009
    Publication date: August 26, 2010
    Applicant: SPANSION LLC
    Inventors: Gulzar A. Kathawala, Zhizheng Liu, Kuo Tung Chang, Lei Xue
  • Publication number: 20100208527
    Abstract: A memory device comprising an optimization component that facilitates erasing memory cells in a substantially homogeneous electromagnetic field and methods that facilitate erasing memory cells in a substantially homogeneous electromagnetic field are presented. The optimization component facilitates selecting a subset of memory cells to be erased at the same time, such that a memory cell in the subset of memory cells has two neighbor memory cells adjacent thereto that are in the subset of memory, or one neighbor memory cell adjacent thereto when the memory cell is an end-row memory cell. The optimization component facilitates performing a Fowler-Nordheim channel erase to erase the subset of memory cells, and a predetermined voltage potential associated with an erase command is applied to each cell of the subset of memory cells to facilitate reducing fringing effect associated with the electromagnetic fields applied to the cells during the erase.
    Type: Application
    Filed: May 4, 2010
    Publication date: August 19, 2010
    Applicant: SPANSION LLC
    Inventors: Gulzar Ahmed Kathawala, Wei Zheng, Zhizheng Liu, Sung-Yong Chung, Timothy Thurgate, Kuo-Tung Chang, Sheung-Hee Park, Gabrielle Wing Han Leung
  • Patent number: 7778088
    Abstract: A hot hole erase operation as described herein can be utilized for a flash memory device having an array of memory cells. The erase operation employs an adaptive erase bias voltage scheme where the drain bias voltage (and/or the gate bias voltage) is dynamically adjusted in response to an erase pulse count corresponding to a preliminary erase operation during which a relatively small portion of a sector is erased. The adjustment of the erase bias voltage in this manner enables the rest of the sector to be erased using erase bias voltages that are better suited to the current erase characteristics of the sector.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: August 17, 2010
    Assignee: Spansion LLC
    Inventors: Kuo-Tung Chang, Wei Zheng
  • Patent number: 7776688
    Abstract: Memory devices having improved TPD characteristics and methods of making the memory devices are provided. The memory devices contain two or more memory cells on a semiconductor substrate and bit line dielectrics between the memory cells. The bit line dielectrics can extend into the semiconductor. The memory cell contains one or more charge storage nodes, a first poly gate, a pair of first bit lines, and a pair of second bit lines. The second bit line can be formed at a higher energy level, a higher concentration of dopants, or a combination thereof compared to an energy level and a concentration of dopants of the first bit line.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: August 17, 2010
    Assignee: Spansion LLC
    Inventors: Ning Cheng, Calvin Gabriel, Angela Hui, Lei Xue, Harpreet Kaur Sachar, Phillip Lawrence Jones, Hiro Kinoshita, Kuo-Tung Chang, Huaqiang Wu
  • Patent number: 7767517
    Abstract: A dual charge storage node memory device and methods for its fabrication are provided. In one embodiment a dielectric plug is formed comprising a first portion recessed into a semiconductor substrate and a second portion extending above the substrate. A layer of semiconductor material is formed overlying the second portion. A first layered structure is formed overlying a first side of the second portion of the dielectric plug, and a second layered structure is formed overlying a second side, each of the layered structures overlying the layer of semiconductor material and comprising a charge storage layer between first and second dielectric layers. Ions are implanted into the substrate to form a first bit line and second bit line, and a layer of conductive material is deposited and patterned to form a control gate overlying the dielectric plug and the first and second layered structures.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: August 3, 2010
    Assignee: Spansion LLC
    Inventors: Chungho Lee, Ashot Melik-Martirosian, Wei Zheng, Timothy Thurgate, Chi Chang, Hiroyuki Kinoshita, Kuo-Tung Chang, Unsoon Kim
  • Patent number: 7754027
    Abstract: A method for manufacturing a sputtering target includes the steps of: providing a highly pure matrix material containing a magnetic metal, and a highly pure precious metal ingot material; cleaning the surfaces of the matrix material and the precious metal ingot; vacuum melting the matrix material and the precious metal ingot to obtain a molten alloy; pouring the molten alloy in a mold having a cooling system while maintaining a surface of the molten alloy at a molten state by arc heating until the pouring is finished, thereby forming the molten alloy into a cast blank; hot working the cast blank; and annealing the cast blank after the hot working.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: July 13, 2010
    Assignee: China Steel Corporation
    Inventors: Rong-Zhi Chen, Jye-Long Lee, In-Ting Hong, Jui-Tung Chang, Pa-Tsui Sze
  • Patent number: 7746705
    Abstract: A memory device comprising an optimization component that facilitates erasing memory cells in a substantially homogeneous electromagnetic field and methods that facilitate erasing memory cells in a substantially homogeneous electromagnetic field are presented. The optimization component facilitates selecting a subset of memory cells to be erased at the same time, such that a memory cell in the subset of memory cells has two neighbor memory cells adjacent thereto that are in the subset of memory, or one neighbor memory cell adjacent thereto when the memory cell is an end-row memory cell. The optimization component facilitates performing a Fowler-Nordheim channel erase to erase the subset of memory cells, and a predetermined voltage potential associated with an erase command is applied to each cell of the subset of memory cells to facilitate reducing fringing effect associated with the electromagnetic fields applied to the cells during the erase.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: June 29, 2010
    Assignee: Spansion LLC
    Inventors: Gulzar Ahmed Kathawala, Wei Zheng, Zhizheng Liu, Sung-Yong Chung, Timothy Thurgate, Kuo-Tung Chang, Sheung-Hee Park, Gabrielle Wing Han Leung
  • Patent number: 7746698
    Abstract: Systems and methods that facilitate improved programming memory cells in a nonvolatile memory (e.g., flash memory) are presented. An optimized voltage component can facilitate supplying respective voltages to a source, drain, and gate associated with a memory cell during operations, such as programming operations. The optimized voltage component can facilitate supplying a predetermined source bitline voltage to a memory cell during programming of the cell to facilitate reducing leakage currents associated with the bitlines, which can improve programming of the memory cell, and to facilitate reducing the programming current, which can result in power efficient programming and improved programming speed.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: June 29, 2010
    Assignee: Spansion LLC
    Inventors: Zhizheng Liu, An Chen, Wei Zheng, Kuo-Tung Chang, Sung-Yong Chung, Gulzar Ahmed Kathawala, Ashot Melik-Martirosian
  • Publication number: 20100128521
    Abstract: Systems, methods, and devices that facilitate applying a predefined negative gate voltage to wordlines adjacent to a selected wordline associated with a memory cell selected during a read or verify operation to facilitate reducing adjacent wordline disturb are presented. A memory component can comprise an optimized operation component that can apply a predefined negative gate voltage to wordlines adjacent to a selected wordline associated with a memory cell selected for a read or verify operation, based at least in part on predefined operation criteria, to facilitate reducing adjacent wordline disturb in the selected memory cell to facilitate reducing a shift in the voltage threshold and maintain a desired operation window. The optimized operation component optionally can include an evaluator component that can facilitate determining whether a negative gate voltage applied to adjacent wordlines is to be adjusted to facilitate reducing adjacent wordline disturb below a predetermined threshold amount.
    Type: Application
    Filed: November 21, 2008
    Publication date: May 27, 2010
    Applicant: SPANSION LLC
    Inventors: Yuji Mizuguchi, Mark W. Randolph, Darlene Gay Hamilton, Yi He, Zhizheng Liu, Yanxia (Emma) Lin, Xianmin Yi, Gulzar Kathawala, Amol Ramesh Joshi, Kuo-Tung Chang, Edward Franklin Runnion, Sung-Chul Lee, Sung-Yong Chung, Yanxiang Liu, Yu Sun
  • Publication number: 20100124175
    Abstract: An apparatus and a method for adaptively calculating a start position of a series of symbols are provided. The method is applied to a frame synchronization circuit that implements the apparatus for calculating the symbolic start position of a packet-switching communication system. Even under the situations such as higher frequency offset, the frequency offset value approaching zero or unstable frequency offset, the frame synchronization circuit using the claimed method still can estimate the symbolic start position. The preferred method includes a first step of retrieving the signals in a unit of packets, and calculating their delay correlation value. Next, a control circuit is incorporated to retrieve multiple groups of symbols, and to set the parameters of the systems as a basis for identifying the system's property. After that, it's to estimate the symbolic start position.
    Type: Application
    Filed: November 14, 2008
    Publication date: May 20, 2010
    Inventors: Chi-Tung Chang, Tzu-Wen Sung, Yu-Ling Chen
  • Publication number: 20100096446
    Abstract: An electronic storage card reader applied to a computer system includes a system port, a control chip, a first card insertion part, and a second card insertion part. The system port is connected to a computer system. The control chip is connected to the system port for converting and transmitting data with the computer system. Each of the first card insertion part and the second card insertion part includes a plurality of card insertion slots connected with the control chip and provided for inserting a memory card. The control chip independently accesses the memory cards inserted into the card insertion slots of the first card insertion part, integrates the memory cards inserted into the card insertion slots of the second card insertion part to form a merged storage space, and accesses the merged storage space. The invention allows the electronic storage card reader to have a single larger storage capacity.
    Type: Application
    Filed: June 18, 2009
    Publication date: April 22, 2010
    Inventors: CHI-TUNG CHANG, Shih-Min Lan, I-Chieh Lin
  • Patent number: 7696038
    Abstract: Methods for fabricating flash memory devices are provided. In accordance with an exemplary embodiment of the invention, a method for fabricating a memory device comprises forming a first gate stack and a second gate stack overlying a substrate. A trench is etched into the substrate between the first gate stack and the second gate stack. A first impurity doped region is formed within the substrate underlying the trench.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: April 13, 2010
    Assignee: Spansion LLC
    Inventors: Ning Cheng, Kuo-Tung Chang, Hiroyuki Kinoshita, Timothy Thurgate, Wei Zheng, Ashot Melik-Martirosian, Angela Hui, Chih-Yuh Yang
  • Publication number: 20100088454
    Abstract: A bridging device with power-saving function includes first and second interfaces, first and second physical layer processing devices, and a controller. The first interface is utilized for coupling a first external device complying with the first interface. The first external device receives a device request signal, and accordingly sends back a device response signal through the first physical layer processing device. The second interface is utilized for coupling a second external device complying with the second interface. The controller is coupled between the first and the second physical layer processing device for transmitting the device request signal with the predetermined frequency to the first physical layer processing device in order to receive the device response signal. When the controller does not receive the device response signal, the controller turns the second physical layer processing device off.
    Type: Application
    Filed: June 25, 2009
    Publication date: April 8, 2010
    Inventors: Chi-Tung Chang, Shih-Min Lan, I-Chieh Lin
  • Publication number: 20100085811
    Abstract: A NAND flash memory cell string having scaled down select gates. The NAND flash memory cell string includes a first select gate that has a width of 140 nm or less and a plurality of wordlines that are coupled to the first select gate. Gates associated with the plurality of wordlines are formed of p+ polysilicon. A second select gate that has a width of 140 nm or less is coupled to the plurality of wordlines.
    Type: Application
    Filed: October 7, 2008
    Publication date: April 8, 2010
    Inventors: YouSeok SUH, Shenqing FANG, Kuo-Tung CHANG
  • Publication number: 20100065940
    Abstract: A semiconductor fabrication system and method are presented. A three dimensional multilayer integrated circuit fabrication method can include forming a first device layer and forming a second device layer on top of the first device layer with minimal detrimental heat transfer to the first layer by utilizing a controlled laser layer formation annealing process. A controlled laser crystallization process can be utilized and the controlled laser can include creating an amorphous layer; defining a crystallization area in the amorphous layer, where in the crystallization area is defined to promote single crystal growth (i.e. prevent multi-crystalline growth); and applying laser to the crystallization area, wherein the laser is applied in a manner that prevents undesired heat transfer to another layer.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 18, 2010
    Inventors: Eunha KIM, Jeremy WAHL, Shenqing FANG, YouSeok SUH, Kuo-Tung CHANG, Yi MA, Rinji SUGINO, Jean YANG
  • Patent number: 7679129
    Abstract: A memory device includes a substrate and a first dielectric layer formed over the substrate. At least two charge storage elements are formed over the first dielectric layer. The substrate and the first dielectric layer include a shallow trench filled with an oxide material. The oxide material formed in a center portion of the shallow trench is removed to provide a region with a substantially rectangular cross-section.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: March 16, 2010
    Assignees: Spansion LLC, GlobalFoundries
    Inventors: Angela T. Hui, Unsoon Kim, Hiroyuki Kinoshita, Kuo-Tung Chang
  • Patent number: 7675104
    Abstract: An integrated circuit memory system that includes: providing a substrate; forming a silicon rich charge storage layer over the substrate; forming a first isolation trench through the silicon rich charge storage layer in a first direction; and forming a second isolation trench through the silicon rich charge storage layer in a second direction.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: March 9, 2010
    Assignees: Spansion LLC, Advanced Micro Devices, Inc.
    Inventors: Amol Ramesh Joshi, Harpreet Sachar, YouSeok Suh, Shenqing Fang, Chih-Yuh Yang, Lovejeet Singh, David H. Matsumoto, Hidehiko Shiraiwa, Kuo-Tung Chang, Scott A. Bell, Allison Holbrook, Satoshi Torii
  • Patent number: 7671469
    Abstract: A semiconductor device with dummy patterns for alleviating micro-loading effect includes a semiconductor substrate having thereon a middle annular region between an inner region and an outer region; a SiGe device on the semiconductor substrate within the inner region; and a plurality of dummy patterns provided on the semiconductor substrate within the middle annular region. At least one of the dummy patterns contains SiGe.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: March 2, 2010
    Assignee: Mediatek Inc.
    Inventors: Tung-Hsing Lee, Ming-Tzong Yang, Tao Cheng, Ching-Chung Ko, Tien-Chang Chang, Yu-Tung Chang