Patents by Inventor CHAO-FU WANG
CHAO-FU WANG 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).
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Publication number: 20240154065Abstract: An optoelectronic device includes a first semiconductor layer, a second semiconductor layer and an active layer between the first semiconductor layer and the second semiconductor layer; a first insulating layer on the second semiconductor layer and including a plurality of first openings exposing the first semiconductor layer, wherein the first openings include a first group and a second group; a third electrode on the first insulating layer and including a first extended portion and a second extended portion, wherein the first extended portion and the second extended portion are respectively electrically connected to the first semiconductor layer through the first group of the first openings and the second group of the first openings, and wherein the number of the first group of the first openings is different from the number of the second group of the first openings; and a plurality of fourth electrodes on the second insulating layer and electrically connected to the second semiconductor layer, wherein in aType: ApplicationFiled: January 11, 2024Publication date: May 9, 2024Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Chien-Chih LIAO, Tzu-Yao TSENG, Tsun-Kai KO, Chien-Fu SHEN
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Publication number: 20240130100Abstract: A memory device is provided. The memory device includes a write pass-gate transistor, a read pass-gate transistor, a write word line, and a read word line. The write pass-gate transistor is disposed in a first layer. The read pass-gate transistor is disposed in a second layer above the first layer. The write word line is disposed in a metallization layer above the first layer and electrically coupled to the write pass-gate transistor through a write path. The read word line is disposed in the metallization layer and electrically coupled to the read pass-gate transistor through a read path. The write path is different from the read path.Type: ApplicationFiled: February 1, 2023Publication date: April 18, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hung-Li Chiang, Jer-Fu Wang, Yi-Tse Hung, Chao-Ching Cheng, Iuliana Radu
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Publication number: 20240113197Abstract: An electronic device and a method for manufacturing the same are provided. The electronic device includes a substrate and a gate structure. The substrate includes a fin. The fin includes a source region and a drain region spaced apart from the source region. The gate structure is located between the source region and the drain region. The gate structure includes a work function layer. The work function layer includes a compound of a metal material and a Group VIA material.Type: ApplicationFiled: January 16, 2023Publication date: April 4, 2024Inventors: JER-FU WANG, CHAO-CHING CHENG, HUNG-LI CHIANG, IULIANA RADU
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Patent number: 10725196Abstract: A transmitter/receiver for use in a dielectric logging tool. The transmitter/receiver generally includes a housing, a septum, a first antenna, and a second antenna. When operated as a transmitter, a first and second electromagnetic signal are emitted by the first and second antenna, respectively. The housing and septum are shaped to combine the first and second electromagnetic signals into a combined signal having varying orientations depending on the phase difference between the first and second electromagnetic signals. When operated as a receiver, an incoming electromagnetic signal is divided into a first and second component signal. The first and second component signals are directed to the first and second antennas, respectively, where they are converted into first and second electrical signals.Type: GrantFiled: April 29, 2015Date of Patent: July 28, 2020Assignee: Halliburton Energy Services, Inc.Inventors: Li Pan, Chao-Fu Wang, Rencheng Song, Jin Ma
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Patent number: 10620334Abstract: Methods and tools for modifying magnetic tilt angle using a magnetically anisotropic material are disclosed. An electromagnetic logging tool includes an antenna coil oriented at a physical tilt angle relative to a longitudinal axis of the tool and a magnetically anisotropic material that modifies a magnetic tilt angle of the coil relative to the physical tilt angle a coil tilted at a physical tilt angle relative to an axis of the tool.Type: GrantFiled: December 31, 2014Date of Patent: April 14, 2020Assignee: Halliburton Energy Services, Inc.Inventors: Li Pan, Chao-Fu Wang, Wei Hsuan Huang, Rencheng Song
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Patent number: 10436931Abstract: Electromagnetic sensors which provide high coupling gain between the transmitter and receiver of a dielectric tool include a conductive pad having a cavity filled with dielectric filler, and an electrical conductor that provides electrical current to a conductive feeder placed inside the dielectric filler. During operation, current is fed to the conductive feeder to thereby produce an electric monopole that feeds electromagnetic power into the cavity, which then radiates out into the formation as electromagnetic signals. Because of the design of the electromagnetic sensors, the transmitter/receiver coupling gain and SNR are optimized over the entire range of the dielectric constant (i.e., 5??r?80).Type: GrantFiled: November 5, 2014Date of Patent: October 8, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Li Pan, Chao-Fu Wang, Rencheng Song, Jin Ma
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Patent number: 10301935Abstract: Hybrid inversion processing techniques are implemented that result in improved speed and accuracy of determining formation properties using log data, for example, from an multi-component induction logging tool. Logging data relating to the formation of interest is obtained and used as an input. High frequency noise is then removed from the logging data and bed-boundary determination is performed using the logging data. An adaptive low pass filter is applied to the logging data and the logging data is inverted. The inverted logging data is correct and enhanced by determining one or more weights based on one or more quality indicators. The inverted logging data may then be visually interpreted and used to adjust one or more drilling parameters.Type: GrantFiled: October 18, 2016Date of Patent: May 28, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Chao-Fu Wang, Ahmed E. Fouda, Burkay Donderici
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Publication number: 20190011595Abstract: Evaluation of formations and fracture characterization based on multicomponent induction (MCI) log data includes automated calculation of biaxial anisotropy (BA) parameters by performing iterative inversion operations based on the MCI log data. Biaxially anisotropic effect corrected (BAC) logs are BA anisotropic effect corrected using the inverted BA parameters. The inverted BA parameters can also be used for identification and quantification of fractures in formations.Type: ApplicationFiled: March 15, 2016Publication date: January 10, 2019Inventors: Junsheng Hou, Chao-Fu Wang, Glenn A. Wilson
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Publication number: 20180347353Abstract: Hybrid inversion processing techniques are implemented that result in improved speed and accuracy of determining formation properties using log data, for example, from an multi-component induction logging tool. Logging data relating to the formation of interest is obtained and used as an input. High frequency noise is then removed from the logging data and bed-boundary determination is performed using the logging data. An adaptive low pass filter is applied to the logging data and the logging data is inverted. The inverted logging data is correct and enhanced by determining one or more weights based on one or more quality indicators. The inverted logging data may then be visually interpreted and used to adjust one or more drilling parameters.Type: ApplicationFiled: October 18, 2016Publication date: December 6, 2018Inventors: Chao-Fu Wang, Ahmed E. Fouda, Burkay Donderici
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Publication number: 20180275307Abstract: A method for real-time determination of water-filled porosity of a formation using dielectric measurement data, whereby the refractive index of a non-water component of the formation and the downhole temperature are acquired, along with the dielectric constant of the formation. Using these values, the water salinity of the formation is calculated. Calculation of the water salinity involves the use of a complex nonlinear equation having multiple solutions. A theorem is applied to the nonlinear equation which produces a single proper solution. Once the water salinity is calculated, it is then used to calculate the water-filled porosity of the formation.Type: ApplicationFiled: September 17, 2015Publication date: September 27, 2018Inventors: Li Pan, Chao-Fu Wang, Greshan Kinsly, Aluth Durage Maleesh Prasan Rathnayaka
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Publication number: 20170322336Abstract: Methods and tools for modifying magnetic tilt angle using a magnetically anisotropic material are disclosed. An electromagnetic logging tool includes an antenna coil oriented at a physical tilt angle relative to a longitudinal axis of the tool and a magnetically anisotropic material that modifies a magnetic tilt angle of the coil relative to the physical tilt angle a coil tilted at a physical tilt angle relative to an axis of the tool.Type: ApplicationFiled: December 31, 2014Publication date: November 9, 2017Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Li PAN, Chao-Fu WANG, Wei Hsuan HUANG, Rencheng SONG
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Publication number: 20170307776Abstract: Electromagnetic sensors which provide high coupling gain between the transmitter and receiver of a dielectric tool include a conductive pad having a cavity filled with dielectric filler, and an electrical conductor that provides electrical current to a conductive feeder placed inside the dielectric filler. During operation, current is fed to the conductive feeder to thereby produce an electric monopole that feeds electromagnetic power into the cavity, which then radiates out into the formation as electromagnetic signals. Because of the design of the electromagnetic sensors, the transmitter/receiver coupling gain and SNR are optimized over the entire range of the dielectric constant (i.e., 5??r?80).Type: ApplicationFiled: November 5, 2014Publication date: October 26, 2017Inventors: Li Pan, Chao-Fu Wang, Rencheng Song, Jin Mia
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Publication number: 20170261634Abstract: A transmitter/receiver for use in a dielectric logging tool. The transmitter/receiver generally includes a housing, a septum, a first antenna, and a second antenna. When operated as a transmitter, a first and second electromagnetic signal are emitted by the first and second antenna, respectively. The housing and septum are shaped to combine the first and second electromagnetic signals into a combined signal having varying orientations depending on the phase difference between the first and second electromagnetic signals. When operated as a receiver, an incoming electromagnetic signal is divided into a first and second component signal. The first and second component signals are directed to the first and second antennas, respectively, where they are converted into first and second electrical signals.Type: ApplicationFiled: April 29, 2015Publication date: September 14, 2017Inventors: Li Pan, Chao-Fu Wang, Rencheng Song, Jin Ma
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Patent number: 9331562Abstract: The present invention provides a power-factor converter with nonlinear conversion ratio, wherein the power-factor converter includes a first inductor, a second inductor, a rectifier circuit and a switch circuit. The switch circuit is arranged to be switched to form a circuit equivalent to a parallel connection of the first inductor and the second inductor during an inductor-charging-phase for charging the first inductor and the second inductor in parallel by an AC power source, and form a circuit equivalent to a series connection of the first inductor L1 and the second inductor L2 during an inductor-discharging-phase for discharging the first inductor and the second inductor to the rectifier circuit in series.Type: GrantFiled: May 19, 2014Date of Patent: May 3, 2016Assignees: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, LITE-ON TECHNOLOGY CORPORATIONInventors: Yu-Chen Liu, Jin Chyuan Huang, Chao-Fu Wang, Yi-Fu Chen, Yu-Kang Lo, Huang-Jen Chiu
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Publication number: 20150236608Abstract: The present invention provides a power-factor converter with nonlinear conversion ratio, wherein the power-factor converter includes a first inductor, a second inductor, a rectifier circuit and a switch circuit. The switch circuit is arranged to be switched to form a circuit equivalent to a parallel connection of the first inductor and the second inductor during an inductor-charging-phase for charging the first inductor and the second inductor in parallel by an AC power source, and form a circuit equivalent to a series connection of the first inductor L1 and the second inductor L2 during an inductor-discharging-phase for discharging the first inductor and the second inductor to the rectifier circuit in series.Type: ApplicationFiled: May 19, 2014Publication date: August 20, 2015Applicants: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, LITE-ON TECHNOLOGY CORPORATIONInventors: YU-CHEN LIU, JIN CHYUAN HUANG, CHAO-FU WANG, YI-FU CHEN, YU-KANG LO, HUANG-JEN CHIU