Patents by Inventor Tai FENG

Tai FENG 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: 11985906
    Abstract: A magnetic tunnel junction (MTJ) memory cell and a metallic etch mask portion are formed over a substrate. At least one dielectric etch stop layer is deposited over the metallic etch mask portion, and a via-level dielectric layer is deposited over the at least one dielectric etch stop layer. A via cavity may be etched through the via-level dielectric layer, and a top surface of the at least one dielectric etch stop layer is physically exposed. The via cavity may be vertically extended by removing portions of the at least one dielectric etch stop layer and the metallic etch mask portion. A contact via structure is formed directly on a top surface of the top electrode in the via cavity to provide a low-resistance contact to the top electrode.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: May 14, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Yu-Feng Yin, Tai-Yen Peng, An-Shen Chang, Han-Ting Tsai, Qiang Fu, Chung-Te Lin
  • Publication number: 20240088681
    Abstract: The disclosed technology relates to a portable electronic device. The portable electronic device may comprise a battery, a battery controller, and a system controller. The battery controller may be configured to determine real time battery state information associated with the battery, the real time battery state information including a system load current draw, a battery age indicator, and a battery temperature. The system controller may be configured to determine a user initiated current low voltage mode state of the portable electronic device of a plurality of low voltage mode states, receive current battery state information from the battery controller, and adaptively generate a real time shutoff voltage threshold based on the current determined low voltage mode state and the current battery state information.
    Type: Application
    Filed: August 30, 2023
    Publication date: March 14, 2024
    Inventors: Wei He, Guangyu Liu, Tianheng Feng, Tai-sik Hwang
  • Patent number: 11897172
    Abstract: A polar plate is fabricated. The polar plate is flexible and made of a plastic graphite composite. No matter a supporting member is used for calendering or not, a thin polar plate with controllable thickness is fabricated. The polar plate is excellent in blocking the through-transmission of vanadium ions and the limit of blending ratio of conductive carbon is broken through. The longitudinal through-transmission volume resistivity (proportional resistance to thickness) is greatly improved by adjusting the blending ratio of conductive carbon for meeting the demand of conductivity. In the mean time, the present invention strengthens the rigidity required for the thin polar plate while providing large-area polar plate fabrication for industrial use and convenience and provides a cooling and pressing method for patterning a composite polar plate. An integrated mold is thus obtained to replace the conventional polar plate which needs to be processed and prepared with runner.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: February 13, 2024
    Assignee: Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, R.O.C.
    Inventors: Hung-Hsien Ku, Ning-Yih Hsu, Han-Jou Lin, Tai-Feng Hung, Qiao-Ya Chen
  • Publication number: 20230325032
    Abstract: An electronic device includes a touch-sensing unit and a light source. The light source is disposed adjacent to the touch-sensing unit. The driving signal of the light source has a voltage change period. The touch-sensing unit performs a sensing operation in a sensing period. The voltage change period and the sensing period at least partially overlap.
    Type: Application
    Filed: March 10, 2023
    Publication date: October 12, 2023
    Inventors: Huan-Liang LO, Jui-Tai FENG, Yu-Hong CHEN, Shang-Ming YEN
  • Publication number: 20230061762
    Abstract: A polar plate is fabricated. The polar plate is flexible and made of a plastic graphite composite. No matter a supporting member is used for calendering or not, a thin polar plate with controllable thickness is fabricated. The polar plate is excellent in blocking the through-transmission of vanadium ions and the limit of blending ratio of conductive carbon is broken through. The longitudinal through-transmission volume resistivity (proportional resistance to thickness) is greatly improved by adjusting the blending ratio of conductive carbon for meeting the demand of conductivity. In the mean time, the present invention strengthens the rigidity required for the thin polar plate while providing large-area polar plate fabrication for industrial use and convenience and provides a cooling and pressing method for patterning a composite polar plate. An integrated mold is thus obtained to replace the conventional polar plate which needs to be processed and prepared with runner.
    Type: Application
    Filed: September 2, 2021
    Publication date: March 2, 2023
    Inventors: Hung-Hsien Ku, Ning-Yih Hsu, Han-Jou Lin, Tai-Feng Hung, Qiao-Ya Chen
  • Patent number: 11292718
    Abstract: The present invention discloses a process for preparing sulfur from reduction of sulfate/nitrate by iron-carbon and recovering desulfurization/denitration agents. High-concentration SO2 flue gas produced by calcination of a sulfate and NOx produced by heating decomposition of a nitrate can be directly reduced to elemental sulfur vapor and N2 through reaction with an iron-carbon material at a high temperature. Then, after dust removal, cooling and fine dust removal, sulfur is recovered by a sulfur recovery device, and metal oxides can replace alkaline mineral resources such as limestone as raw materials of desulfurization (denitration) agents. This process can recycle the desulfurization and denitration agents.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: April 5, 2022
    Assignee: SHANDONG UNIVERSITY
    Inventors: Chunyuan Ma, Xiao Xia, Lin Cui, Liqiang Zhang, Xiqiang Zhao, Jun Li, Tai Feng, Shizhen Zhang
  • Patent number: 11286162
    Abstract: A system and method for recovering sulfur in a copper smelting process includes removing fine dust from high-concentration SO2 flue gas from a matte smelting furnace, introducing the flue gas into a fluidized bed carbothermic reduction tower to be reduced by a carbon-based reducing agent to obtain reducing gas, passing the reducing gas through a high temperature separator to separate down unsaturated powder coke contained in the reducing gas, and condensing the reducing gas to obtain sulfur. The saturated powder coke entrained in the reducing gas enters a desorption tower to desorb SO2 gas therein, and the desorbed powder coke enters a fluidized bed sulfur reduction tower to continue to participate in the reduction reaction. Part of the SO2 gas discharged from the desorption tower is discharged to the fluidized bed carbothermic reduction tower to produce sulfur, and the other part enters a desulfurization tower.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: March 29, 2022
    Assignee: SHANDONG UNIVERSITY
    Inventors: Chunyuan Ma, Xiao Xia, Xiqiang Zhao, Tai Feng, Jun Li, Shizhen Zhang
  • Publication number: 20210331921
    Abstract: A system and method for recovering sulfur in a copper smelting process, in which fine dust is removed from high-concentration SO2 flue gas from a matte smelting furnace, the flue gas is introduced into a fluidized bed carbothermic reduction tower and reduced by a carbon-based reducing agent to obtain reducing gas, which is introduced into a high temperature separator. The separated reducing gas contains unsaturated powder coke, and the reducing gas is condensed to obtain sulfur. The saturated powder coke entrained enters a desorption tower to desorb SO2 gas, and the desorbed powder coke enters a fluidized bed sulfur reduction tower. Part of the SO2 gas discharged from the desorption tower is discharged to the fluidized bed carbothermic reduction tower to produce sulfur, and the other part is introduced into a desulfurization tower.
    Type: Application
    Filed: August 31, 2018
    Publication date: October 28, 2021
    Applicant: SHANDONG UNIVERSITY
    Inventors: Chunyuan MA, Xiao XIA, Xiqiang ZHAO, Tai FENG, Jun LI, Shizhen ZHANG
  • Publication number: 20210331922
    Abstract: The present invention discloses a process for preparing sulfur from reduction of sulfate/nitrate by iron-carbon and recovering desulfurization/denitration agents. High-concentration SO2 flue gas produced by calcination of a sulfate and NOx produced by heating decomposition of a nitrate can be directly reduced to elemental sulfur vapor and N2 through reaction with an iron-carbon material at a high temperature. Then, after dust removal, cooling and fine dust removal, sulfur is recovered by a sulfur recovery device, and metal oxides can replace alkaline mineral resources such as limestone as raw materials of desulfurization (denitration) agents. This process can recycle the desulfurization and denitration agents.
    Type: Application
    Filed: December 27, 2018
    Publication date: October 28, 2021
    Applicant: SHANDONG UNIVERSITY
    Inventors: Chunyuan MA, Xiao XIA, Lin CUI, Liqiang ZHANG, Xiqiang ZHAO, Jun LI, Tai FENG, Shizhen ZHANG
  • Patent number: 10367227
    Abstract: An electrolyte composition and a metal-ion battery employing the same are provided. The electrolyte composition includes a metal chloride, a chlorine-containing ionic liquid, and an additive, wherein the additive has a structure represented by Formula (I) [M]i[(A(SO2CxF2x+1)y)b?]j??Formula (I), wherein M can be imidazolium cation, ammonium cation, azaannulenium cation, . . . etc., wherein M has a valence of a; a can be 1, 2, or 3; A can be N, O, Si, or C; x can be 1, 2, 3, 4, 5, or 6; y can be 1, 2, or 3; b can be 1, 2, or 3; i can be 1, 2, or 3; j can be 1, 2, or 3; a/b=j/i; and when y is 2 or 3, the (SO2CxF2x+1) moieties are the same or different.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: July 30, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Che-Wei Chang, Wen-Sheng Chang, Chun-Tsung Hsu, Yu-Wen Yeh, Tai-Feng Hung, Chang-Chung Yang
  • Patent number: 10177412
    Abstract: An electrolyte composition and a sodium secondary battery are provided. The electrolyte composition includes an alcohol compound and a metallic salt, wherein the metallic salt consists of a sodium salt formed. The sodium secondary battery includes the electrolyte composition, a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: January 8, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Tai-Feng Hung, Yu-Wen Yeh, Wen-Sheng Chang, Chang-Chung Yang, Che-Wei Chang
  • Publication number: 20170358815
    Abstract: An electrolyte composition and a metal-ion battery employing the same are provided. The electrolyte composition includes a metal chloride, a chlorine-containing ionic liquid, and an additive, wherein the additive has a structure represented by Formula (I) [M]i[(A(SO2CxF2x+1)y)b?]j??Formula (I) , wherein M can be imidazolium cation, ammonium cation, azaannulenium cation, . . . etc., wherein M has a valence of a; a can be 1, 2, or 3; A can be N, O, Si, or C; x can be 1, 2, 3, 4, 5, or 6; y can be 1, 2, or 3; b can be 1, 2, or 3; i can be 1, 2, or 3; j can be 1, 2, or 3; a/b=j/i; and when y is 2 or 3, the (SO2CxF2x+1) moieties are the same or different.
    Type: Application
    Filed: June 14, 2017
    Publication date: December 14, 2017
    Applicant: Industrial Technology Research Institute
    Inventors: Che-Wei CHANG, Wen-Sheng CHANG, Chun-Tsung HSU, Yu-Wen YEH, Tai-Feng HUNG, Chang-Chung YANG
  • Publication number: 20170054177
    Abstract: An electrolyte composition and a sodium secondary battery are provided. The electrolyte composition includes an alcohol compound and a metallic salt, wherein the metallic salt consists of a sodium salt formed. The sodium secondary battery includes the electrolyte composition, a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode.
    Type: Application
    Filed: November 24, 2015
    Publication date: February 23, 2017
    Applicant: Industrial Technology Research Institute
    Inventors: Tai-Feng HUNG, Yu-Wen YEH, Wen-Sheng CHANG, Chang-Chung YANG, Che-Wei CHANG
  • Patent number: 9412425
    Abstract: A memory device includes a plurality of sense amplifiers coupled with an array of memory cells, a plurality of output data lines receiving outputs of corresponding sense amplifiers, and a plurality of precharge circuits configured to apply a precharge voltage on the output data lines. A controller provides control signals to the sense amplifiers and to the precharge circuits, including to cause the precharge circuits to precharge the output data lines before the sense amplifiers drive output data signals to the output data lines. The plurality of sense amplifiers includes banks of sense amplifiers, and each bank includes a sense amplifier having an output driving each output data line. The memory device includes data output multiplexers having inputs coupled to the output data lines, and the precharge circuits are coupled to the output data lines between outputs of the sense amplifiers and the data output multiplexers.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: August 9, 2016
    Assignee: Macronix International Co., Ltd.
    Inventors: Yung-Feng Lin, Su-Chueh Lo, Tai-Feng Chen, Yi-Fan Chang
  • Publication number: 20160156035
    Abstract: Disclosed is a composite material, having the chemical structure represented below: Na1+(4?a)xTi2?xMx(PO4)3/C, wherein the M is an element with valence a, a is a positive integer from 1 to 4, and 0.1?x?0.4. The composite material can be mixed with an electrically conductive agent and a binder to form a negative electrode for application in a sodium secondary battery.
    Type: Application
    Filed: December 29, 2014
    Publication date: June 2, 2016
    Applicant: Industrial Technology Research Institute
    Inventors: Tai-Feng HUNG, Yu-Wen YEH, Wen-Sheng CHANG, Chang-Chung YANG
  • Publication number: 20150206557
    Abstract: A memory device includes a plurality of sense amplifiers coupled with an array of memory cells, a plurality of output data lines receiving outputs of corresponding sense amplifiers, and a plurality of precharge circuits configured to apply a precharge voltage on the output data lines. A controller provides control signals to the sense amplifiers and to the precharge circuits, including to cause the precharge circuits to precharge the output data lines before the sense amplifiers drive output data signals to the output data lines. The plurality of sense amplifiers includes banks of sense amplifiers, and each bank includes a sense amplifier having an output driving each output data line. The memory device includes data output multiplexers having inputs coupled to the output data lines, and the precharge circuits are coupled to the output data lines between outputs of the sense amplifiers and the data output multiplexers.
    Type: Application
    Filed: March 30, 2015
    Publication date: July 23, 2015
    Applicant: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Yung-Feng Lin, Su-Chueh Lo, Tai-Feng Chen, Yi-Fan Chang
  • Patent number: 9001604
    Abstract: A memory device includes a plurality of sense amplifiers coupled with an array of memory cells, a plurality of output data lines receiving outputs of corresponding sense amplifiers, and a plurality of precharge circuits configured to apply a precharge voltage on the output data lines. A controller provides control signals to the sense amplifiers and to the precharge circuits, including to cause the precharge circuits to precharge the output data lines before the sense amplifiers drive output data signals to the output data lines. The plurality of sense amplifiers includes banks of sense amplifiers, and each bank includes a sense amplifier having an output driving each output data line. The memory device includes data output multiplexers having inputs coupled to the output data lines, and the precharge circuits are coupled to the output data lines between outputs of the sense amplifiers and the data output multiplexers.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: April 7, 2015
    Assignee: Macronix International Co., Ltd.
    Inventors: Yung-Feng Lin, Su-Chueh Lo, Tai-Feng Chen, Yi-Fan Chang
  • Publication number: 20150004494
    Abstract: The present invention discloses a high electrochemical performance silicon/graphene composite anode structure. The electrochemical properties of silicon in the composite anode structure can be improved by graphene thin films. The thickness of the silicon thin film and the graphene thin films is less than 50 nm to prevent the composite anode structure from any volumetric change during the charge/discharge process. The manufacturing procedure starts with the formation of a Si/graphene unit layer, which includes an amorphous phase upper silicon thin film and a lower graphene thin film, on a copper foil current collector, so as to decrease the difference of conductivity between the silicon thin film and the copper foil current collector. Finally, the deposition is concluded with the formation of a graphene thin film on the topmost surface of the silicon thin film to prevent the surface of the anode structure from oxidation.
    Type: Application
    Filed: June 25, 2014
    Publication date: January 1, 2015
    Inventors: Mori Tatsuhiro, Chih-Jung Chen, Tai-Feng Hung, Saad G. Mohamed, Ru-Shi Liu, Shu-Fen Hu, Hong-Zheng Lin, Yi-Qiao Lin, Chien-Ming Sung, Bing-Joe Hwang
  • Publication number: 20140269125
    Abstract: A memory device includes a plurality of sense amplifiers coupled with an array of memory cells, a plurality of output data lines receiving outputs of corresponding sense amplifiers, and a plurality of precharge circuits configured to apply a precharge voltage on the output data lines. A controller provides control signals to the sense amplifiers and to the precharge circuits, including to cause the precharge circuits to precharge the output data lines before the sense amplifiers drive output data signals to the output data lines. The plurality of sense amplifiers includes banks of sense amplifiers, and each bank includes a sense amplifier having an output driving each output data line. The memory device includes data output multiplexers having inputs coupled to the output data lines, and the precharge circuits are coupled to the output data lines between outputs of the sense amplifiers and the data output multiplexers.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: Macronix International Co., Ltd.
    Inventors: Yung-Feng Lin, Su-Chueh Lo, Tai-Feng Chen, Yi-Fan Chang
  • Publication number: 20140178758
    Abstract: Disclosed is a device for producing an electric current and a method for making the same. The device for producing an electric current, comprising: an anode comprising a stack formed by alternately stacking of at least one Si layer and at least one carbon material layer, and a LiPON layer on the stack; a cathode; and an electrolyte between the anode and the cathode.
    Type: Application
    Filed: December 24, 2012
    Publication date: June 26, 2014
    Applicant: EPISTAR CORPORATION
    Inventors: Chih-Jung CHEN, Shu-Fen HU, Ru-Shi LIU, Tai-Feng HUNG