Patents by Inventor Ting-Chang Chang

Ting-Chang 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: 20110205799
    Abstract: A method for operating a memory device is provided. In accordance with the method, the charges are stored in a source storage region, a drain storage region, and a channel storage region of a charge storage layer which respectively correspond to a source, a drain, and a channel of a SONOS transistor, thereby achieving 3-bit information storage in one cell. The channel storage region is programmed and erased by FN tunneling. Both of the source storage region and the drain storage region are programmed by channel hot electrons and erased by source-side or drain-side FN tunneling. The present invention can store three-bit data per cell, such that the storage density of the memory device can be substantially increased.
    Type: Application
    Filed: April 30, 2010
    Publication date: August 25, 2011
    Applicant: ACER INCORPORATED
    Inventors: Ting-Chang CHANG, Fu-Yen JIAN, Shih-Ching CHEN, Te-Chih CHEN
  • Patent number: 7982268
    Abstract: A dual-gate transistor includes a first gate formed on a substrate, a first dielectric layer covering the first gate and the substrate, a semiconductor layer formed on the first dielectric layer, first and second electrodes formed on the semiconductor layer and spaced with an interval in order to separate each other, a second dielectric layer covering the first and second electrodes, and a second gate formed on the second dielectric layer, in which at least one of the first and second gates is non-overlapped with the second electrode.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: July 19, 2011
    Assignee: AU Optronics Corp.
    Inventors: Chung-Yu Liang, Feng-Yuan Gan, Ting-Chang Chang
  • Patent number: 7983092
    Abstract: The present invention relates to a nonvolatile memory apparatus and a method of using a thin film transistor (TFT) as a nonvolatile memory by storing carriers in a body of the TFT, which operates a general TFT as a memory cell of a nonvolatile memory by manipulating the electrical characteristics of the TFT in order to integrate with other electrical components formed by TFTs, such as logic circuit or TFT-LCD pixel transistor, on the LCD panel without additional semiconductor manufacturing processes.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: July 19, 2011
    Assignee: Acer Incorporated
    Inventors: Ting-Chang Chang, Fu-Yen Jian, Te-Chih Chen
  • Publication number: 20110168998
    Abstract: A dual-gate transistor includes a first gate formed on a substrate, a first dielectric layer covering the first gate and the substrate, a semiconductor layer formed on the first dielectric layer, first and second electrodes formed on the semiconductor layer and spaced with an interval in order to separate each other, a second dielectric layer covering the first and second electrodes, and a second gate formed on the second dielectric layer, in which at least one of the first and second gates is non-overlapped with the second electrode.
    Type: Application
    Filed: March 24, 2011
    Publication date: July 14, 2011
    Inventors: Chung-Yu Liang, Feng-Yuan Gan, Ting-Chang Chang
  • Publication number: 20110103155
    Abstract: One embodiment of the present invention provides an operation method of a memory device. The memory device includes a source, a drain, and a channel region between the source and the drain, a gate dielectric with a charge storage layer on the channel region, and a gate on the gate dielectric, wherein the source, the drain and the channel region are located in a substrate. The operation method includes the following steps: applying a reverse bias between the gate and the drain of the memory device to generate band-to-band hot holes in the substrate near the drain; injecting the band-to-band hot holes to a drain side of the charge storage layer; and performing a program/erase operation upon the memory device. The band-to-band hot holes in the drain side of the charge storage layer are not completely vanished by the program/erase operation.
    Type: Application
    Filed: July 22, 2010
    Publication date: May 5, 2011
    Applicant: ACER INCORPORATED
    Inventors: Ting-Chang Chang, Te-Chih Chen, Fu-Yen Jian, Chia-Sheng Lin
  • Publication number: 20110096610
    Abstract: There is a method for enabling a SONOS transistor to be used as both a switch and a memory. FN tunneling is carried out through the source or drain of the transistor, so as to further change the state of electrons stored in an upper charge storage layer adjacent to the drain or source, and the variation in gate-induced drain leakage is used to recognize the memory state of the drain and source. A stable threshold voltage of the transistor is always maintained during this operation. The present invention enables one single transistor having dual features of switch and memory, while being provided with a two-bit memory effect, thus providing a higher memory density in comparison with a general transistor.
    Type: Application
    Filed: December 22, 2009
    Publication date: April 28, 2011
    Applicant: ACER INCORPORATED
    Inventors: Ting-Chang Chang, Shih-Ching Chen, Te-Chih Chen, Fu-Yen Jian, Yong-En Syu
  • Patent number: 7869284
    Abstract: The present invention relates to an erasing method for nonvolatile memory, which uses forward bias between the source/drain region and body contact to inject majority carriers into the body, and then accelerates the majority carriers by an electric field between the body and the gate to energize the majority carriers to overcome the oxide barrier and to erase the nonvolatile memory.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: January 11, 2011
    Assignee: Acer Incorporated
    Inventors: Ting-Chang Chang, Fu-Yen Jian, Hung-Wei Li
  • Publication number: 20100322014
    Abstract: The present invention relates to an erasing method for nonvolatile memory, which uses forward bias between the source/drain region and body contact to inject majority carriers into the body, and then accelerates the majority carriers by an electric field between the body and the gate to energize the majority carriers to overcome the oxide barrier and to erase the nonvolatile memory.
    Type: Application
    Filed: July 6, 2009
    Publication date: December 23, 2010
    Applicant: ACER INCORPORATED
    Inventors: Ting-Chang Chang, Fu-Yen Jian, Hung-Wei Li
  • Patent number: 7835192
    Abstract: A method for programming a nonvolatile memory includes applying at least a voltage to a source or a drain, so as to inject carriers of the source or drain into a substrate; applying a third voltage to a gate or the substrate, so that the carriers which are in the substrate having enough energy can surmount an oxide layer to reach a charge storage device.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: November 16, 2010
    Assignee: Acer Incorporated
    Inventors: Ting-Chang Chang, Shih-Ching Chen, Fu-Yen Jian
  • Patent number: 7813142
    Abstract: A portable electronic device (20) includes a circuit board (21) and at least one conducting pole (22). The conducting pole is mounted on the circuit board and includes a breakable portion (2224), the breakable portion is configured to be the part that breaks when the conducting pole is crumpled.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: October 12, 2010
    Assignee: Chi Mei Communication Systems, Inc.
    Inventors: Kuan-Chang Lin, Ting-Chang Chang
  • Publication number: 20100254185
    Abstract: The present invention relates to a nonvolatile memory apparatus and a method of using a thin film transistor (TFT) as a nonvolatile memory by storing carriers in a body of the TFT, which operates a general TFT as a memory cell of a nonvolatile memory by manipulating the electrical characteristics of the TFT in order to integrate with other electrical components formed by TFTs, such as logic circuit or TFT-LCD pixel transistor, on the LCD panel without additional semiconductor manufacturing processes.
    Type: Application
    Filed: May 13, 2009
    Publication date: October 7, 2010
    Applicant: ACER INCORPORATED
    Inventors: Ting-Chang Chang, Fu-Yen Jian, Te-Chih Chen
  • Patent number: 7701007
    Abstract: A Thin Film Transistor comprises a gate electrode formed on a substrate; a gate insulation layer covering the gate electrode; an amorphous silicon (a-Si) region disposed on the gate insulation layer and above the gate electrode; a doped a-Si region formed on the a-Si region; the source and drain metal regions separately formed on the doped a-Si region and above the gate electrode, and isolated from the a-Si region; a passivation layer formed on the gate insulation layer and covering the source, drain and data-line (DL) metal regions; and a conductive layer formed on the passivation layer. The passivation layer has a first, second and third vias for respectively exposing the partial surfaces of the source, drain and DL metal regions. The first, second and third vias are filled with the conductive layer, so that the DL and source metal regions are connected via the conductive layer.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: April 20, 2010
    Assignee: AU Optronics Corp.
    Inventors: Chi-Wen Chen, Ting-Chang Chang, Po-Tsun Liu, Kuo-Yu Huang, Jen-Chien Peng
  • Publication number: 20100034027
    Abstract: A method for programming a nonvolatile memory is provided. The method includes applying at least a voltage to a source or a drain, so as to inject carriers of the source or drain into a substrate; applying a third voltage to a gate or the substrate, so that the carriers which are in the substrate having enough energy can surmount an oxide layer to reach a charge storage device.
    Type: Application
    Filed: December 4, 2008
    Publication date: February 11, 2010
    Inventors: Ting-Chang Chang, Shih-Ching Chen, Fu-Yen Jian
  • Publication number: 20090283822
    Abstract: A non-volatile memory structure includes a substrate having two doped regions, a charge-trapping structure positioned substantially between the two doped regions, and a conductive structure positioned on the charge-trapping structure, wherein the charge-trapping structure includes a silicon-oxy-nitride layer and metallic nano-dots embedded in the silicon-oxy-nitride layer. The non-volatile memory structure formed by performing a first thermal oxidation process to form a high-k dielectric layer on a substrate, forming a metal-containing semiconductor layer including silicon or germanium on the high-k dielectric layer, forming a silicon layer on the metal-containing semiconductor layer, and performing a second thermal oxidation process to convert the metal-containing semiconductor layer to a silicon-oxy-nitride layer with embedded metallic nano-dots, wherein at least one of the first thermal oxidation process and the second thermal oxidation process is performed in a nitrogen-containing atmosphere.
    Type: Application
    Filed: May 16, 2008
    Publication date: November 19, 2009
    Applicant: PROMOS TECHNOLOGIES INC.
    Inventors: WAN TENG HSIEH, I HSUAN LIAO, SHIH FANG CHEN, TING CHANG CHANG, PENG BO XI, WEI REN CHEN
  • Publication number: 20090020312
    Abstract: A portable electronic device (20) includes a circuit board (21) and at least one conducting pole (22). The conducting pole is mounted on the circuit board and includes a breakable portion (2224), the breakable portion is configured to be the part that breaks when the conducting pole is crumpled.
    Type: Application
    Filed: December 7, 2007
    Publication date: January 22, 2009
    Applicant: CHI MEI COMMUNICATION SYSTEMS, INC.
    Inventors: KUAN-CHANG LIN, TING-CHANG CHANG
  • Publication number: 20080074360
    Abstract: A pixel circuit includes a first transistor coupled to a supply voltage end, a second transistor coupled to a ground end, a storage capacitor, a third transistor coupled to a data end, a fourth transistor, a fifth transistor coupled to the second transistor and the second end of the storage capacitor, and a light-emitting element coupled to the fourth transistor. The first transistor is used for conducting a supply voltage from the supply voltage end in response to a trigger of an enable signal. The second transistor is used for conducting a ground voltage from the ground end when a scan signal voltage is triggered. The storage capacitor includes a first end and a second end coupled to the first transistor and the second transistor, respectively. The third transistor is used for conducting a data signal voltage when the scan signal voltage is triggered. The fourth transistor is used for generating a conducting current based on the data signal voltage when the scan signal voltage is not triggered.
    Type: Application
    Filed: March 22, 2007
    Publication date: March 27, 2008
    Applicant: AU Optronics Corp.
    Inventors: Hau-yan Lu, Chi-wen Chen, Ting-chang Chang
  • Publication number: 20070290227
    Abstract: A dual-gate transistor includes a first gate formed on a substrate, a first dielectric layer covering the first gate and the substrate, a semiconductor layer formed on the first dielectric layer, first and second electrodes formed on the semiconductor layer and spaced with an interval in order to separate each other, a second dielectric layer covering the first and second electrodes, and a second gate formed on the second dielectric layer, in which at least one of the first and second gates is non-overlapped with the second electrode.
    Type: Application
    Filed: June 14, 2007
    Publication date: December 20, 2007
    Inventors: Chung-Yu Liang, Feng-Yuan Gan, Ting-Chang Chang
  • Patent number: 7235443
    Abstract: A method of manufacturing a floating gate is provided. The method includes the steps of forming a tunneling layer on a substrate, and forming a film layer containing a semiconductor component on the tunneling layer. The film layer consists of a semiconductor film or nano-dots.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: June 26, 2007
    Assignee: National Sun Yat-sen University
    Inventors: Ting-Chang Chang, Shuo-Ting Yan, Po-Tsun Liu, Chi-Wen Chen, Tsung-Ming Tsai, Ya-Hsiang Tai, Simon-M Sze
  • Publication number: 20070085115
    Abstract: A memory cell, suitable for being disposed on a substrate, comprises a poly-Si island, a first dielectric layer, a trapping layer, a second dielectric layer and a control gate. The poly-Si island is disposed on the substrate and includes a source doped region, a drain doped region and a channel region there-between. The first dielectric layer is disposed on the poly-Si island, the trapping layer is disposed on the first dielectric layer, the second dielectric layer is disposed on the trapping layer and the control gate is disposed on the second dielectric layer. The above-described memory cell can be integrated into the manufacturing process of a low temperature polysilicon LCD panel (LTPS LCD panel) or an organic light emitting display panel (OLED panel).
    Type: Application
    Filed: April 12, 2006
    Publication date: April 19, 2007
    Inventors: Hung-Tse Chen, Chi-Lin Chen, Yu-Cheng Chen, Chi-Wen Chen, Ting-Chang Chang
  • Publication number: 20070052020
    Abstract: A Thin Film Transistor comprises a gate electrode formed on a substrate; a gate insulation layer covering the gate electrode; an amorphous silicon (a-Si) region disposed on the gate insulation layer and above the gate electrode; a doped a-Si region formed on the a-Si region; the source and drain metal regions separately formed on the doped a-Si region and above the gate electrode, and isolated from the a-Si region; a passivation layer formed on the gate insulation layer and covering the source, drain and data-line (DL) metal regions; and a conductive layer formed on the passivation layer. The passivation layer has a first, second and third vias for respectively exposing the partial surfaces of the source, drain and DL metal regions. The first, second and third vias are filled with the conductive layer, so that the DL and source metal regions are connected via the conductive layer.
    Type: Application
    Filed: March 31, 2006
    Publication date: March 8, 2007
    Inventors: Chi-Wen Chen, Ting-Chang Chang, Po-Tsun Liu, Kuo-Yu Huang, Jen-Chien Peng