Patents by Inventor Tao Cheng

Tao Cheng 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: 20150074806
    Abstract: A computer-implemented method for using event-correlation graphs to detect attacks on computing systems may include (1) detecting a suspicious event involving a first actor within a computing system, (2) constructing an event-correlation graph that includes a first node that represents the first actor, a second node that represents a second actor, and an edge that interconnects the first node and the second node and represents a suspicious event involving the first actor and the second actor, (3) calculating, based at least in part on the additional suspicious event, an attack score for the event-correlation graph, (4) determining that the attack score is greater than a predetermined threshold, and (5) determining, based at least in part on the attack score being greater than the predetermined threshold, that the suspicious event may be part of an attack on the computing system. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Application
    Filed: September 30, 2013
    Publication date: March 12, 2015
    Applicant: Symantec Corporation
    Inventors: Kevin Roundy, Fanglu Guo, Sandeep Bhatkar, Tao Cheng, Jie Fu, Zhi Kai Li, Darren Shou, Sanjay Sawhney, Acar Tamersoy, Elias Khalil
  • Patent number: 8952484
    Abstract: A non-volatile memory and a manufacturing method thereof are provided. The non-volatile memory includes a substrate, a gate structure, a first doped region, a second doped region and a pair of isolation structures. The gate structure is disposed on the substrate. The gate structure includes a charge storage structure, a gate and spacers. The charge storage structure is disposed on the substrate. The gate is disposed on the charge storage structure. The spacers are disposed on the sidewalls of the gate and the charge storage structure. The first doped region and the second doped region are respectively disposed in the substrate at two sides of the charge storage structure and at least located under the spacers. The isolation structures are respectively disposed in the substrate at two sides of the gate structure.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: February 10, 2015
    Assignee: MACRONIX International Co., Ltd.
    Inventors: Guan-Wei Wu, I-Chen Yang, Yao-Wen Chang, Tao-Cheng Lu
  • Patent number: 8952457
    Abstract: An ESD protection circuit including a substrate of a first conductivity type, an annular well region of a second conductivity type, two first regions of the first conductivity type and at least one transistor of the second conductivity type is provided. The annular well region is disposed in the substrate. The first regions are disposed in the substrate and surrounded by the annular well region. The at least one transistor is disposed on the substrate between the first regions and including a source, a gate, and a drain. The annular well region and the drain are coupled to a first voltage source. The source and one of the first regions are coupled to a second voltage source, and the other of the first regions is coupled to a substrate triggering circuit.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: February 10, 2015
    Assignee: MACRONIX International Co., Ltd.
    Inventors: Shih-Yu Wang, Chia-Ling Lu, Yan-Yu Chen, Yu-Lien Liu, Tao-Cheng Lu
  • Publication number: 20150023098
    Abstract: An operation method of a multi-level memory is provided. A first read voltage lower than a standard read voltage is applied to a doped region in a substrate at one side of a control gate of the memory, so as to determine whether a first storage position and a second storage position are both at the lowest level.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 22, 2015
    Inventors: Guan-Wei Wu, Yao-Wen Chang, I-Chen Yang, Tao-Cheng Lu
  • Patent number: 8937347
    Abstract: A non-volatile memory is provided. The non-volatile memory includes a oxide and polysilicon stack structure and charge storage layers. The oxide and polysilicon stack structure is disposed on a substrate. There are recesses in the substrate at two sides of the oxide and polysilicon stack structure. The oxide and polysilicon stack structure includes an oxide layer and a polysilicon layer. The oxide layer is disposed on the substrate, wherein there is an interface between the oxide layer and the substrate. The polysilicon layer is disposed on the oxide layer. The charge storage layers are disposed in the recesses and extend to a side wall of the oxide and polysilicon stack structure, and a top surface of each of the charge storage layers is higher than the interface.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: January 20, 2015
    Assignee: MACRONIX International Co., Ltd.
    Inventors: Guan-Wei Wu, I-Chen Yang, Yao-Wen Chang, Tao-Cheng Lu
  • Patent number: 8929134
    Abstract: A method of programming a NAND flash memory cell string. The method includes a pre-boost stage configured to elevate channel voltage of a selected memory cell, and a boost stage is introduced after the pre-boost stage. The pre-boost stage has at least the following steps of biasing a bit line to a first voltage, biasing a string select transistor to a second voltage; and ramping down the string select transistor to the first voltage. In particular, the second voltage is higher than the first voltage.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: January 6, 2015
    Assignee: Macronix International Co., Ltd.
    Inventors: Chu Yung Liu, Hsing Wen Chang, Yao Wen Chang, Tao Cheng Lu
  • Publication number: 20150001675
    Abstract: A semiconductor circuit comprises a first and a second logic circuit, a first and a second decoupling capacitor. The first decoupling capacitor is arranged in a first area around the first logic circuit and the second decoupling capacitor is arranged in a second area around the second logic circuit. Wherein, the first area is larger than the second area, a gate oxide thickness of the first decoupling capacitor is larger than a gate oxide thickness of the second decoupling capacitor, and a distance between the first area and the first logic circuit is shorter than a distance between the second area and the second logic circuit. Further, the first and second decoupling capacitors are designed without trench.
    Type: Application
    Filed: September 19, 2014
    Publication date: January 1, 2015
    Inventors: Tien-Chang Chang, Ming-Tzong Yang, Tao Cheng, Cheng-Hsing Chien, Hsin-Hsin Hsiao
  • Publication number: 20140362494
    Abstract: The present invention provides a resin composition comprising: 1 to 20 parts by weight of a reinforcing fiber; 0.2 to 5 parts by weight of an anti-settling agent; 20 to 40 parts by weight of an epoxy resin; 0.1 to 3 parts by weight of a curing agent; and 50 to 75 parts by weight of a high dielectric constant filler. The present invention further provides a dielectric layer produced from the resin composition and a capacitor comprising the dielectric layer. In the dielectric layer made from the resin composition provided by the present invention, the fibers can be evenly dispersed and can enhance the mechanical strength of the resin composition, and cooperate with the epoxy resin to bring excellent toughness. Therefore, the mechanical strength of the produced dielectric layer can be remarkably improved, and its fragility can be effectively overcome when the dielectric layer is used in the PCB double-side etching process.
    Type: Application
    Filed: December 21, 2011
    Publication date: December 11, 2014
    Inventors: Tao Cheng, Qilin Chen, Zhou Jin
  • Patent number: 8860544
    Abstract: An integrated inductor includes a winding consisting of an aluminum layer atop a passivation layer, wherein the aluminum layer does not extend into the passivation layer and has a thickness that is not less than about 2.0 micrometers. The passivation layer has a thickness not less than about 0.8 micrometers. By eliminating copper from the integrated inductor and increasing the thickness of the passivation layer, the distance between the bottom surface of the inductor structure and the main surface of the semiconductor substrate is increased, thus the parasitic substrate coupling may be reduced and the Q-factor may be improved. Besides, the increased thickness of the aluminum layer may help improve the Q-factor as well.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: October 14, 2014
    Assignee: Mediatek Inc.
    Inventors: Ching-Chung Ko, Tung-Hsing Lee, Kuei-Ti Chan, Tao Cheng, Ming-Tzong Yang
  • Publication number: 20140264528
    Abstract: A non-volatile memory structure includes a source and a drain. The memory structure includes a substrate and a dielectric layer on the substrate. The memory structure further has a gate, which can be a floating gate, on the dielectric layer. A recess is on the drain side and nearest to the bottom corner of the dielectric layer. The recess is configured to reduce the electric field density around the bottom corner nearest to the drain in order to reduce the damage on the dielectric layer when the memory is under a bias.
    Type: Application
    Filed: May 2, 2013
    Publication date: September 18, 2014
    Applicant: MACRONIX International Co., Ltd.
    Inventors: TAO YUAN LIN, CHEN HAN CHOU, I CHEN YANG, YAO WEN CHANG, TAO CHENG LU
  • Publication number: 20140269054
    Abstract: A method of altering threshold voltage distribution of a non-volatile MLC memory before the memory is programmed according to a pre-designated coding table. The method includes grouping a plurality of cells which are pre-designated to have the same first bit voltage in a same main state and then grouping the cells in a selected main state into a same sub state if they have the same pre-designated second bit voltage. The method further has a step by elevating the first bit voltage of the cells with highest pre-designated second bit voltage to a voltage which is greater than the voltage of the pre-designated highest main state.
    Type: Application
    Filed: April 3, 2013
    Publication date: September 18, 2014
    Applicant: Macronix International Co., Ltd.
    Inventors: GUAN WEI WU, YAO WEN CHANG, I CHEN YANG, TAO CHENG LU
  • Publication number: 20140264378
    Abstract: A semiconductor structure has a MOSFET and a substrate to accommodate the MOSFET. The MOSFET has a gate, a source, and a drain in the substrate. A first substrate region surrounding the MOSFET is doped with a stress enhancer, wherein the stress enhancer is configured to generate a tensile stress in the MOSFET's channel and the tensile stress is along the channel's widthwise direction.
    Type: Application
    Filed: April 2, 2013
    Publication date: September 18, 2014
    Applicant: MACRONIX International Co., Ltd.
    Inventors: GUAN WEI WU, YAO WEN CHANG, I CHEN YANG, TAO CHENG LU
  • Patent number: 8836005
    Abstract: A memory array includes a charge storage structure and a plurality of conductive materials over the charge storage structure is provided. Each conductive material, serving as a word line, has a substantially arc-sidewall and a substantially straight sidewall.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: September 16, 2014
    Assignee: MACRONIX International Co., Ltd.
    Inventors: I-Chen Yang, Yao-Wen Chang, Tao-Cheng Lu
  • Publication number: 20140231900
    Abstract: A non-volatile memory is provided. The non-volatile memory includes a oxide and polysilicon stack structure and charge storage layers. The oxide and polysilicon stack structure is disposed on a substrate. There are recesses in the substrate at two sides of the oxide and polysilicon stack structure. The oxide and polysilicon stack structure includes an oxide layer and a polysilicon layer. The oxide layer is disposed on the substrate, wherein there is an interface between the oxide layer and the substrate. The polysilicon layer is disposed on the oxide layer. The charge storage layers are disposed in the recesses and extend to a side wall of the oxide and polysilicon stack structure, and a top surface of each of the charge storage layers is higher than the interface.
    Type: Application
    Filed: April 30, 2014
    Publication date: August 21, 2014
    Applicant: MACRONIX International Co., Ltd.
    Inventors: Guan-Wei Wu, I-Chen Yang, Yao-Wen Chang, Tao-Cheng Lu
  • Publication number: 20140225833
    Abstract: A touch mouse including a pressure sensing region, a touch sensing region, and a control unit is disclosed. The pressure sensing region is disposed at a first side and a second side of the touch mouse, and the touch sensing region covers at least the pressure sensing region at the first side. The first side is opposite to the second side. When the user clicks the pressure sensing region, it generates a pressure sensing signal. When the user clicks the touch sensing region, it generates a touch sensing signal. When the pressure sensing signal and the touch sensing signal are generated, the control unit outputs a first clicking signal representing that the first side is clicked. When the pressure sensing signal is generated but the touch sensing signal is not, the control unit outputs a second clicking signal representing that the second side is clicked.
    Type: Application
    Filed: February 1, 2014
    Publication date: August 14, 2014
    Applicants: LITE-ON TECHNOLOGY CORPORATION, LITE-ON ELECTRONICS (GUANGZHOU) LIMITED
    Inventor: TAO-CHENG YEN
  • Publication number: 20140226411
    Abstract: A method of programming a NAND flash memory cell string. The method includes a pre-boost stage configured to elevate channel voltage of a selected memory cell, and a boost stage is introduced after the pre-boost stage. The pre-boost stage has at least the following steps of biasing a bit line to a first voltage, biasing a string select transistor to a second voltage; and ramping down the string select transistor to the first voltage. In particular, the second voltage is higher than the first voltage.
    Type: Application
    Filed: February 8, 2013
    Publication date: August 14, 2014
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: CHU YUNG LIU, HSING WEN CHANG, YAO WEN CHANG, TAO CHENG LU
  • Publication number: 20140175608
    Abstract: A method for including decoupling capacitors into a semiconductor circuit having at least a logic circuit therein, includes: arranging a first decoupling capacitor and a second decoupling capacitor into a first area and a second area around the logic circuit respectively, wherein a gate oxide thickness of the first decoupling capacitor is different from a gate oxide thickness of the second decoupling capacitor, and a distance between the first area and the first logic circuit is shorter than a distance between the second area and the second logic circuit.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 26, 2014
    Applicant: MEDIATEK INC.
    Inventors: Tien-Chang Chang, Ming-Tzong Yang, Tao Cheng, Cheng-Hsing Chien, Hsin-Hsin Hsiao
  • Publication number: 20140159134
    Abstract: A non-volatile memory and a manufacturing method thereof are provided. The non-volatile memory including a gate structure disposed on a substrate, doped regions, charge storage layers, and a first dielectric layer. There are recesses in the substrate at two sides of the gate structure. The gate structure includes a gate dielectric layer disposed on the substrate and a gate disposed on the gate dielectric layer. There is an interface between the gate dielectric layer and the substrate. The doped regions are disposed in the substrate around the recesses. The charge storage layers are disposed in the recesses, and a top surface of each of the charge storage layers is higher than the interface. The first dielectric layer is disposed between the charge storage layers and the substrate, and between the charge storage layers and the gate structure.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 12, 2014
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Guan-Wei Wu, I-Chen Yang, Yao-Wen Chang, Tao-Cheng Lu
  • Patent number: 8748963
    Abstract: A non-volatile memory and a manufacturing method thereof are provided. The non-volatile memory including a gate structure disposed on a substrate, doped regions, charge storage layers, and a first dielectric layer. There are recesses in the substrate at two sides of the gate structure. The gate structure includes a gate dielectric layer disposed on the substrate and a gate disposed on the gate dielectric layer. There is an interface between the gate dielectric layer and the substrate. The doped regions are disposed in the substrate around the recesses. The charge storage layers are disposed in the recesses, and a top surface of each of the charge storage layers is higher than the interface. The first dielectric layer is disposed between the charge storage layers and the substrate, and between the charge storage layers and the gate structure.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: June 10, 2014
    Assignee: MACRONIX International Co., Ltd.
    Inventors: Guan-Wei Wu, I-Chen Yang, Yao-Wen Chang, Tao-Cheng Lu
  • Patent number: 8748936
    Abstract: A semiconductor device includes a first well region of a first conductivity type, a second well region of a second conductive type within the first well region. A first region of the first conductivity type and a second region of the second conductivity type are disposed within the second well region. A third region of the first conductivity type and a fourth region of the second conductivity type are disposed within the first well region, wherein the third region and the fourth region are separated by the second well region. The semiconductor device also includes a switch device coupled to the third region.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: June 10, 2014
    Assignee: Macronix International Co., Ltd.
    Inventors: Shih-Yu Wang, Chia-Ling Lu, Yan-Yu Chen, Yu-Lien Liu, Tao-Cheng Lu