Patents by Inventor Cheng-Chung Yang
Cheng-Chung Yang 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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Patent number: 11961919Abstract: A method of forming a semiconductor device includes: forming a fin protruding above a substrate, where a top portion of the fin comprises a layer stack that includes alternating layers of a first semiconductor material and a second semiconductor material; forming a dummy gate structure over the fin; forming openings in the fin on opposing sides of the dummy gate structure; forming source/drain regions in the openings; removing the dummy gate structure to expose the first semiconductor material and the second semiconductor material under the dummy gate structure; performing a first etching process to selectively remove the exposed first semiconductor material, where after the first etching process, the exposed second semiconductor material form nanostructures, where each of the nanostructures has a first shape; and after the first etching process, performing a second etching process to reshape each of the nanostructures into a second shape different from the first shape.Type: GrantFiled: March 21, 2022Date of Patent: April 16, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Cheng-Chung Chang, Hsiu-Hao Tsao, Ming-Jhe Sie, Shun-Hui Yang, Chen-Huang Huang, An Chyi Wei, Ryan Chia-Jen Chen
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Publication number: 20240120847Abstract: A voltage regulator having a multiple of main stages and at least one accelerated voltage regulator (AVR) bridge is provided. The main stages may respond to low frequency current transients and provide DC output voltage regulation. The AVR bridges are switched much faster than the main stages and respond to high frequency current transients without regulating the DC output voltage. The AVR bridge frequency response range can overlap with the main stage frequency response range, and the lowest frequency to which the AVR bridges respond may be set lower than the highest frequency to which the main stages respond.Type: ApplicationFiled: October 6, 2022Publication date: April 11, 2024Inventors: Shuai Jiang, Xin Li, Woon-Seong Kwon, Cheng Chung Yang, Qiong Wang, Nam Hoon Kim, Mikhail Popovich, Houle Gan, Chenhao Nan
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Publication number: 20240097011Abstract: A method includes forming a fin structure over a substrate, wherein the fin structure comprises first semiconductor layers and second semiconductor layers alternately stacked over a substrate; forming a dummy gate structure over the fin structure; removing a portion of the fin structure uncovered by the dummy gate structure; performing a selective etching process to laterally recess the first semiconductor layers, including injecting a hydrogen-containing gas from a first gas source of a processing tool to the first semiconductor layers and the second semiconductor layers; and injecting an F2 gas from a second gas source of the processing tool to the first semiconductor layers and the second semiconductor layers; forming inner spacers on opposite end surfaces of the laterally recessed first semiconductor layers of the fin structure; and replacing the dummy gate structure and the first semiconductor layers with a metal gate structure.Type: ApplicationFiled: December 1, 2023Publication date: March 21, 2024Applicants: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., TSMC NANJING COMPANY LIMITEDInventors: Han-Yu LIN, Fang-Wei LEE, Kai-Tak LAM, Raghunath PUTIKAM, Tzer-Min SHEN, Li-Te LIN, Pinyen LIN, Cheng-Tzu YANG, Tzu-Li LEE, Tze-Chung LIN
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Patent number: 11911909Abstract: The present invention relates to a collision-free path generating method for a robot and an end effector quipped thereon to move. The method includes steps of configuring a virtual working environment, containing a plurality of virtual objects at least including the robot, the end effector and a target object consisting of a plurality of basic members and mapped from a working environment in a reality, in a robot simulator; selecting a level of detail and a pre-determined shape for a collider covering the plurality of virtual objects to determine boundaries for the plurality of objects; randomly sampling a combination of robot configurations; and based on the determine boundaries and the randomly sampled combination of robot configurations, performing a heuristic based pathfinding algorithm to compute a collision-free path for the robot and the end effector quipped thereon to move to the target object accordingly.Type: GrantFiled: August 17, 2021Date of Patent: February 27, 2024Assignee: SMART BUILDING TECH CO., LTD.Inventors: Shih-Chung Kang, Liang-Ting Tsai, Cheng-Hsuan Yang
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Patent number: 11911911Abstract: The present invention relates to a near-site robotic construction system. The system includes a work station situated on a near-site position in a close proximity to a building foundation on which a building is under construction and providing shelter and workspace for at least one robot to work; and a computer-assisted cloud based near-site robotic construction platform installed on a cloud server system and configured to provide for a user to operate through a web browser, import and extract a building information modelling data, and plan a predetermined motion command set partly based on the extracted building information modelling data, wherein the at least one robot is configured to work in accordance with the predetermined motion command set to prefabricate a plurality of components for the building in the work station on the near-site position.Type: GrantFiled: March 31, 2021Date of Patent: February 27, 2024Assignee: SMART BUILDING TECH CO., LTD.Inventors: Shih-Chung Kang, Liang-Ting Tsai, Cheng-Hsuan Yang
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Patent number: 11860597Abstract: A smart switch system comprising one or more switching devices. Each one of the switching devices include a first pin, a second pin, a current indication pin, a system current limit pin and a power switch for electrically coupling the first pin to the second pin when the power switch is turned on. Each switching device may adaptively adjust an operation current limit value of the switching device based on a system total current limit value received or set at the system current limit pin and a system current indication signal received at the current indication pin.Type: GrantFiled: November 23, 2021Date of Patent: January 2, 2024Assignee: Chengdu Monolithic Power Systems Co., Ltd.Inventors: Xingwei Wang, Cheng-Chung Yang, I-Fan Chen, Xiuhong Guo
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Publication number: 20220163935Abstract: A smart switch system comprising one or more switching devices. Each one of the switching devices include a first pin, a second pin, a current indication pin, a system current limit pin and a power switch for electrically coupling the first pin to the second pin when the power switch is turned on. Each switching device may adaptively adjust an operation current limit value of the switching device based on a system total current limit value received or set at the system current limit pin and a system current indication signal received at the current indication pin.Type: ApplicationFiled: November 23, 2021Publication date: May 26, 2022Inventors: Xingwei Wang, Cheng-Chung Yang, I-Fan Chen, Xiuhong Guo
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Patent number: 10964261Abstract: Embodiments of the present disclosure provide a pixel circuitry, a method for driving the pixel circuitry, an array substrate, and a display device. The pixel circuitry may include a preset circuit, a storage circuit, a driving circuit, a compensation circuit, and a light emitting element. The preset circuit may provide a signal from a data signal terminal to a first node, and provide a signal from an initialization signal terminal to a second node. The storage circuit may store a voltage difference between the first node and the second node. The driving circuit may provide a driving current to a third node according to a voltage of the first node. The compensation circuit may compensate for a voltage of the second node according to a signal from a control signal terminal. The light emitting element may emit light according to the driving current.Type: GrantFiled: August 1, 2018Date of Patent: March 30, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Cheng Chung Yang
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Publication number: 20200312243Abstract: Embodiments of the present disclosure provide a pixel circuitry, a method for driving the pixel circuitry, an array substrate, and a display device. The pixel circuitry may include a preset circuit, a storage circuit, a driving circuit, a compensation circuit, and a light emitting element. The preset circuit may provide a signal from a data signal terminal to a first node, and provide a signal from an initialization signal terminal to a second node. The storage circuit may store a voltage difference between the first node and the second node. The driving circuit may provide a driving current to a third node according to a voltage of the first node. The compensation circuit may compensate for a voltage of the second node according to a signal from a control signal terminal. The light emitting element may emit light according to the driving current.Type: ApplicationFiled: August 1, 2018Publication date: October 1, 2020Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Cheng Chung YANG
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Patent number: 10778098Abstract: A power supply system, which has a switched-tank converter with an adjustable conversion ratio, includes a first-stage power converter, a second-stage power converter, and a controller. The first-stage power converter converts a supply voltage to a first output voltage, and modulates the first output voltage according to a modulation signal. A second-stage power converter converts the first output voltage to a second output voltage, and generates a power signal according to the output power of the second output voltage. The controller determines, according to the power signal, whether the output power exceeds a threshold to generate the modulation signal.Type: GrantFiled: March 29, 2019Date of Patent: September 15, 2020Assignee: WIWYNN CORPORATIONInventors: Cheng Chung Yang, Po-Chia Huang
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Patent number: 10720104Abstract: A pixel circuit and a driving method thereof, and a display device. The pixel circuit includes a pixel unit and a bias-voltage regulating circuit. The pixel unit includes: a driving circuit configured to generate a driving current according to a control voltage at a light-emitting stage; a light-emitting control circuit configured to output the driving current to drive the light-emitting device to emit light at the light-emitting stage; a data writing circuit configured to write a data voltage into the driving circuit; a reset circuit configured to reset the driving circuit under control of a reset voltage, and to reset the light-emitting device under control of a gate line; and a bias-voltage regulating circuit configured to, before the data writing circuit writes the data voltage into the driving circuit, perform bias voltage regulation on the driving circuit to control the pixel unit to be in a bias voltage state.Type: GrantFiled: May 11, 2018Date of Patent: July 21, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xueling Gao, Cheng Chung Yang, Kuanjun Peng, Xiangxiang Zou, Yang Yang
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Publication number: 20200204072Abstract: A power supply system, which has a switched-tank converter with an adjustable conversion ratio, includes a first-stage power converter, a second-stage power converter, and a controller. The first-stage power converter converts a supply voltage to a first output voltage, and modulates the first output voltage according to a modulation signal. A second-stage power converter converts the first output voltage to a second output voltage, and generates a power signal according to the output power of the second output voltage. The controller determines, according to the power signal, whether the output power exceeds a threshold to generate the modulation signal.Type: ApplicationFiled: March 29, 2019Publication date: June 25, 2020Inventors: Cheng Chung YANG, Po-Chia HUANG
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Patent number: 10650751Abstract: A pixel driving circuit and a driving method thereof, and a display device. The pixel driving circuit includes a light-emitting driving circuit, a light-emitting component and a gate-source voltage adjustment circuit. A control end, a first end and a second end of the light-emitting driving circuit are electrically connected with a first node, a second node and the light-emitting component respectively; the gate-source voltage adjustment circuit is electrically connected with at least one of the first node and the second node, the gate-source voltage adjustment circuit is also electrically connected with an adjustment voltage terminal, and the gate-source voltage adjustment circuit is configured to adjust at least one of a voltage of the first node and a voltage of the second node, so as to increase a modulus value of a voltage difference between the control end and the first end of the light-emitting driving circuit.Type: GrantFiled: May 17, 2018Date of Patent: May 12, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiangxiang Zou, Cheng Chung Yang, Yinglong Huang, Kuanjun Peng
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Publication number: 20190304368Abstract: Embodiments of the present disclosure provide a pixel circuitry, a method for driving the pixel circuitry, an array substrate, and a display device. The pixel circuitry may include a preset circuit, a storage circuit, a driving circuit, a compensation circuit, and a light emitting element. The preset circuit may provide a signal from a data signal terminal to a first node, and provide a signal from an initialization signal terminal to a second node. The storage circuit may store a voltage difference between the first node and the second node. The driving circuit may provide a driving current to a third node according to a voltage of the first node. The compensation circuit may compensate for a voltage of the second node according to a signal from a control signal terminal. The light emitting element may emit light according to the driving current.Type: ApplicationFiled: August 1, 2018Publication date: October 3, 2019Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Cheng Chung YANG
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Publication number: 20190130833Abstract: A pixel circuit and a driving method thereof, and a display device. The pixel circuit includes a pixel unit and a bias-voltage regulating circuit. The pixel unit includes: a driving circuit configured to generate a driving current according to a control voltage at a light-emitting stage; a light-emitting control circuit configured to output the driving current to drive the light-emitting device to emit light at the light-emitting stage; a data writing circuit configured to write a data voltage into the driving circuit; a reset circuit configured to reset the driving circuit under control of a reset voltage, and to reset the light-emitting device under control of a gate line; and a bias-voltage regulating circuit configured to, before the data writing circuit writes the data voltage into the driving circuit, perform bias voltage regulation on the driving circuit to control the pixel unit to be in a bias voltage state.Type: ApplicationFiled: May 11, 2018Publication date: May 2, 2019Inventors: Xueling GAO, Cheng Chung Yang, Kuanjun PENG, Xiangxiang ZOU, Yang Yang
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Publication number: 20190073955Abstract: A pixel driving circuit and a driving method thereof, and a display device. The pixel driving circuit includes a light-emitting driving circuit, a light-emitting component and a gate-source voltage adjustment circuit. A control end, a first end and a second end of the light-emitting driving circuit are electrically connected with a first node, a second node and the light-emitting component respectively; the gate-source voltage adjustment circuit is electrically connected with at least one of the first node and the second node, the gate-source voltage adjustment circuit is also electrically connected with an adjustment voltage terminal, and the gate-source voltage adjustment circuit is configured to adjust at least one of a voltage of the first node and a voltage of the second node, so as to increase a modulus value of a voltage difference between the control end and the first end of the light-emitting driving circuit.Type: ApplicationFiled: May 17, 2018Publication date: March 7, 2019Inventors: Xiangxiang Zou, Cheng Chung YANG, Yinglong HUANG, Kuanjun PENG
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Patent number: 9595635Abstract: The present invention relates to a point source light-emitting diode containing a support substrate, a metal layer, a first conduction-type layer, an active layer, a second conduction-type layer containing a current-narrowing structure, and a topside electrode having an aperture, stacking in this order, in which the metal layer is provided locally in an area corresponding to the aperture and has a metal reflection face by which a light generated in the active layer is reflected towards the aperture side, and the point source light-emitting diode further contains a light-reflection reduction face having a lower reflectivity and/or a higher absorptivity than the metal reflection face, provided around the metal reflection face.Type: GrantFiled: March 4, 2015Date of Patent: March 14, 2017Assignee: DAIDO STEEL CO., LTD.Inventors: Masumi Hirotani, Shinji Iio, Hidetoshi Sone, Keizo Kawaguchi, Cheng Chung Yang
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Publication number: 20160171920Abstract: A display apparatus includes a display panel and a driving module. The driving module is electrically connected with the display panel and has an image processing circuit and a data driving circuit. The image processing circuit receives a first image signal of a frame time. When an average gray level of the first image signal is greater than or equal to a first setting gray level, the image processing circuit reduces gray levels of the first image signal according to a first ratio to obtain a second image signal. The data driving circuit receives the second image signal and drives the display panel to display an image according to the second image signal. An image control method of the display panel is also disclosed.Type: ApplicationFiled: February 23, 2016Publication date: June 16, 2016Inventors: Cheng-Chung YANG, Fu-Cheng CHEN, Yu-Heng YANG
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Publication number: 20150255674Abstract: The present invention relates to a point source light-emitting diode containing a support substrate, a metal layer, a first conduction-type layer, an active layer, a second conduction-type layer containing a current-narrowing structure, and a topside electrode having an aperture, stacking in this order, in which the metal layer is provided locally in an area corresponding to the aperture and has a metal reflection face by which a light generated in the active layer is reflected towards the aperture side, and the point source light-emitting diode further contains a light-reflection reduction face having a lower reflectivity and/or a higher absorptivity than the metal reflection face, provided around the metal reflection face.Type: ApplicationFiled: March 4, 2015Publication date: September 10, 2015Inventors: Masumi Hirotani, Shinji Iio, Hidetoshi Sone, Keizo Kawaguchi, Cheng Chung Yang
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Patent number: 9076372Abstract: The present disclosure provides a display device including a light emitting diode and a driving module. The driving module drives the light emitting diode. The driving module includes a first switch circuit, a second switch circuit, and a driver transistor. The first switch circuit selectively writes a gray scale voltage in a first capacitor. The second switch circuit selectively writes an offset voltage in a second capacitor. The driver transistor is coupled to the light emitting diode, the first capacitor, and the second capacitor. The driver transistor adjusts a driving current being outputted to the light emitting diode according to the gray scale voltage and the offset voltage. The gray scale voltage adjusts the voltage difference between the gate and the source of the driver transistor, while the offset voltage adjusts a threshold voltage of the driver transistor.Type: GrantFiled: August 29, 2013Date of Patent: July 7, 2015Assignee: INNOLUX CORPORATIONInventors: Cheng-Chung Yang, Liang-Lu Chen, Chun Yu Chen, Hong-Ru Guo