Patents by Inventor Yu-Hsuan Cheng
Yu-Hsuan 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).
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Patent number: 11984365Abstract: A high atomic number material is applied to one or more surfaces of a semiconductor structure of a wafer. The one or more surfaces are at a depth different from a depth of a surface of the wafer. An electron beam is scanned over the semiconductor structure to cause a backscattered electron signal to be collected at a collector. A profile scan of the semiconductor structure is generated based on an intensity of the backscattered electron signal, at the collector, resulting from the high atomic number material. The high atomic number material increases the intensity of the backscattered electron signal for the one or more surfaces of the semiconductor structure such that contrast in the profile scan is increased. The increased contrast of the profile scan enables accurate critical dimension measurements of the semiconductor structure.Type: GrantFiled: March 19, 2021Date of Patent: May 14, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Pei-Hsuan Lee, Hung-Ming Chen, Kuang-Shing Chen, Yu-Hsiang Cheng, Xiaomeng Chen
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Patent number: 11921474Abstract: A virtual metrology method using a convolutional neural network (CNN) is provided. In this method, a dynamic time warping (DTW) algorithm is used to delete unsimilar sets of process data, and adjust the sets of process data to be of the same length, thereby enabling the CNN to be used for virtual metrology. A virtual metrology model of the embodiments of the present invention includes several CNN models and a conjecture model, in which plural inputs of the CNN model are sets of time sequence data of respective parameters, and plural outputs of the CNN models are inputs to the conjecture model.Type: GrantFiled: May 25, 2021Date of Patent: March 5, 2024Assignee: NATIONAL CHENG KUNG UNIVERSITYInventors: Fan-Tien Cheng, Yu-Ming Hsieh, Tan-Ju Wang, Li-Hsuan Peng, Chin-Yi Lin
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Patent number: 11891155Abstract: A bicycle front derailleur is provided, including: a base, configured to be mounted to a bicycle frame; a linkage mechanism, including a connection portion configured to be connected with a cable, the linkage mechanism being swingably connected to the base; a chain guide, swingably connected to the linkage mechanism; and an adjustment assembly, disposed on the base, including a holder movably disposed on the base and an adjustment member, the holder being configured to be connected with a sheath for driving the cable, the adjustment member being movably disposed on the base and adjustable to drive the holder to move relative to the base.Type: GrantFiled: January 25, 2023Date of Patent: February 6, 2024Assignee: AD-II ENGINEERING INC.Inventors: Kai-Hung Hu, Yu-Hsuan Cheng
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Patent number: 11891313Abstract: Materials for binding per- and polyfluoroalkyl substances (PFAS) are disclosed. A fluidic device comprising the materials for detection and quantification of PFAS in a sample is disclosed. The fluidic device may be configured for multiplexed analyses. Also disclosed are methods for sorbing and remediating PFAS in a sample. The sample may be groundwater containing, or suspected of containing, one or more PFAS.Type: GrantFiled: May 7, 2020Date of Patent: February 6, 2024Assignees: Battelle Memorial Institute, New Jersey Institute of TechnologyInventors: Sayandev Chatterjee, Radha K. Motkuri, Sagnik Basuray, Yu Hsuan Cheng
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Publication number: 20230399076Abstract: A rear derailleur is provided, including: a base, configured to be mounted to a bicycle; a linkage assembly, connected to the base; a movable member, rotatably connected to the linkage assembly; a chain guide, rotatably connected to the movable member by an axle assembly; a biasing member, located between the movable member and the chain guide, positioned to the movable member and the chain guide; a resistance mechanism, connected to the movable member; and a cap member, covering the resistance mechanism and driving the resistance mechanism, rotatably positionable in either of a first position and a second position, wherein when the cap member is positioned in the first position, the resistance mechanism provides a first resistance, and when the cap member is positioned in the second position, the resistance mechanism provides a second resistance which is different from the first resistance.Type: ApplicationFiled: June 14, 2022Publication date: December 14, 2023Inventors: CHIEN-HAO SU, YU-HSUAN CHENG, KAI-HUNG HU
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Patent number: 11834131Abstract: A rear derailleur is provided, including: a base, configured to be mounted to a bicycle; a linkage assembly, connected to the base; a movable member, rotatably connected to the linkage assembly; a chain guide, rotatably connected to the movable member by an axle assembly; a biasing member, located between the movable member and the chain guide, positioned to the movable member and the chain guide; a resistance mechanism, connected to the movable member; and a cap member, covering the resistance mechanism and driving the resistance mechanism, rotatably positionable in either of a first position and a second position, wherein when the cap member is positioned in the first position, the resistance mechanism provides a first resistance, and when the cap member is positioned in the second position, the resistance mechanism provides a second resistance which is different from the first resistance.Type: GrantFiled: June 14, 2022Date of Patent: December 5, 2023Assignee: AD-II ENGINEERING INC.Inventors: Chien-Hao Su, Yu-Hsuan Cheng, Kai-Hung Hu
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Patent number: 11814138Abstract: A rear derailleur is provided, including: a base, configured to be mounted to a bicycle; a movable member, movably disposed on the base; a shaft, rotatably connected to the movable member; a chain guide, connected to the shaft; a biasing member, disposed between the chain guide and the movable member; a resistance mechanism, connected to the movable member to apply frictional resistance to the shaft.Type: GrantFiled: June 28, 2022Date of Patent: November 14, 2023Assignee: AD-II ENGINEERING INC.Inventors: Chien-Hao Su, Yu-Hsuan Cheng, Kai-Hung Hu
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Publication number: 20230327671Abstract: A voltage level shifter includes an input transistor, a control circuit, a reset circuit, and a keeper circuit. The input transistor is configured to receive an input voltage and a first reference voltage. The control circuit is configured to generate a pulse voltage according to the input voltage and one of a node voltage, an output voltage, and an inversion input voltage. The reset circuit is configured to receive the first reference voltage and a second reference voltage and controlled by the pulse voltage. The reset circuit is coupled to the input transistor at a first node where the node voltage is generated. The keeper circuit is coupled to the first node and configured to generate the output voltage according to the node voltage, the first reference voltage, the second reference voltage, and the output voltage.Type: ApplicationFiled: March 17, 2023Publication date: October 12, 2023Inventors: Yu-Hsuan CHENG, Cheng-Heng CHUNG
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Publication number: 20230234674Abstract: A bicycle front derailleur is provided, including: a base, configured to be mounted to a bicycle frame; a linkage mechanism, including a connection portion configured to be connected with a cable, the linkage mechanism being swingably connected to the base; a chain guide, swingably connected to the linkage mechanism; and an adjustment assembly, disposed on the base, including a holder movably disposed on the base and an adjustment member, the holder being configured to be connected with a sheath for driving the cable, the adjustment member being movably disposed on the base and adjustable to drive the holder to move relative to the base.Type: ApplicationFiled: January 25, 2023Publication date: July 27, 2023Inventors: KAI-HUNG HU, YU-HSUAN CHENG
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Publication number: 20220252536Abstract: Materials for binding per- and polyfluoroalkyl substances (PFAS) are disclosed. A fluidic device comprising the materials for detection and quantification of PFAS in a sample is disclosed. The fluidic device may be configured for multiplexed analyses. Also disclosed are methods for sorbing and remediating PFAS in a sample. The sample may be groundwater containing, or suspected of containing, one or more PFAS.Type: ApplicationFiled: May 7, 2020Publication date: August 11, 2022Applicants: Battelle Memorial Institute, New Jersey Institute of TechnologyInventors: Sayandev Chatterjee, Radha K. Motkuri, Sagnik Basuray, Yu Hsuan Cheng
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Patent number: 10714193Abstract: A data storage apparatus and a method for preventing data error using the same are provided. The data storage apparatus includes a memory and a memory controller. The memory includes a plurality of blocks. The memory controller is coupled to the memory and configured to perform the following operations: recording a read count of a target block of the memory; performing an error bit check on a free storage space of the target block when the read count of the target block meets a condition; and programming a dummy data to the free storage space of the target block in response to the determination that the check result is negative.Type: GrantFiled: April 18, 2019Date of Patent: July 14, 2020Assignee: SILICON MOTION, INC.Inventor: Yu-Hsuan Cheng
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Publication number: 20190325981Abstract: A data storage apparatus and a method for preventing data error using the same are provided. The data storage apparatus includes a memory and a memory controller. The memory includes a plurality of blocks. The memory controller is coupled to the memory and configured to perform the following operations: recording a read count of a target block of the memory; performing an error bit check on a free storage space of the target block when the read count of the target block meets a condition; and programming a dummy data to the free storage space of the target block in response to the determination that the check result is negative.Type: ApplicationFiled: April 18, 2019Publication date: October 24, 2019Applicant: Silicon Motion, Inc.Inventor: Yu-Hsuan CHENG
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Patent number: 9871517Abstract: A method for determining a resistance calibration direction in ZQ calibration of a memory device includes: repeatedly comparing a reference voltage with an target voltage by a comparator to obtain an odd plurality of comparison outputs, each of the comparison outputs being one of a high-level state and a low-level state; determining a majority of the comparison outputs for their states by a ZQ calibration controller; and determining a resistance calibration direction according to the majority by the ZQ calibration controller so that the ZQ calibration controller generates a calibration code based on the resistance calibration direction and applies the calibration code to a resistance calibration unit to adjust the target voltage via the resistance calibration unit.Type: GrantFiled: August 17, 2016Date of Patent: January 16, 2018Assignee: Elite Semiconductor Memory Technology Inc.Inventors: Yu-Hsuan Cheng, Jian-Sing Liou
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Patent number: 9832399Abstract: An image sensor including a substrate, a trench isolation, a plurality of image sensing units, at least one phase detection unit, and an interconnection layer is provided. The trench isolation is in the substrate, and a plurality of active areas of the substrate are separated from each other by the trench isolation. The image sensing units and the at least one phase detection unit are in the active areas arranged in an array, and a sensing area of the at least one phase detection unit is smaller than a sensing area of each of the image sensing units. The interconnection layer is disposed on the image sensing units and the at least one phase detection unit. In addition, a method of fabricating an image sensor is also provided.Type: GrantFiled: January 29, 2016Date of Patent: November 28, 2017Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chia-Yu Wei, Chin-Hsun Hsiao, Po-Chun Chiu, Yu-Hsuan Cheng, Yung-Lung Hsu, Hsin-Chi Chen, Ching-Ling Cheng
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Publication number: 20170223285Abstract: An image sensor including a substrate, a trench isolation, a plurality of image sensing units, at least one phase detection unit, and an interconnection layer is provided. The trench isolation is in the substrate, and a plurality of active areas of the substrate are separated from each other by the trench isolation. The image sensing units and the at least one phase detection unit are in the active areas arranged in an array, and a sensing area of the at least one phase detection unit is smaller than a sensing area of each of the image sensing units. The interconnection layer is disposed on the image sensing units and the at least one phase detection unit. In addition, a method of fabricating an image sensor is also provided.Type: ApplicationFiled: January 29, 2016Publication date: August 3, 2017Inventors: Chia-Yu Wei, Chin-Hsun Hsiao, Po-Chun Chiu, Yu-Hsuan Cheng, Yung-Lung Hsu, Hsin-Chi Chen, Ching-Ling Cheng
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Patent number: 9692399Abstract: An example of the invention provides a digital delay unit that is made up of a plurality of NAND gates. The digital delay unit includes a first delay path and a second delay path. The first delay path is coupled between a first input terminal and an output terminal to provide a basic time delay which is caused by one NAND gate. The second delay path is coupled between a second input terminal and the output terminal to provide at least three basic time delays.Type: GrantFiled: January 28, 2016Date of Patent: June 27, 2017Assignee: SILICON MOTION, INC.Inventor: Yu-Hsuan Cheng
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Publication number: 20160241224Abstract: An example of the invention provides a digital delay unit that is made up of a plurality of NAND gates. The digital delay unit includes a first delay path and a second delay path. The first delay path is coupled between a first input terminal and an output terminal to provide a basic time delay which is caused by one NAND gate. The second delay path is coupled between a second input terminal and the output terminal to provide at least three basic time delays.Type: ApplicationFiled: January 28, 2016Publication date: August 18, 2016Inventor: Yu-Hsuan CHENG
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Patent number: 9335354Abstract: A phase detector, arranged for comparing a phase of a first clock with a phase of a second clock. The phase detector includes a phase detection stage and a metastable prevention stage. The phase detection stage is arranged to receive the first clock and the second clock, and to output a phase comparison result in accordance with the phase of the first clock and the phase of the second clock. The metastable prevention stage is arranged to receive the phase comparison result, and to output a stable phase comparison result in accordance with the phase comparison result.Type: GrantFiled: May 12, 2014Date of Patent: May 10, 2016Assignee: Silicon Motion Inc.Inventor: Yu-Hsuan Cheng
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Publication number: 20150185264Abstract: A phase detector, arranged for comparing a phase of a first clock with a phase of a second clock. The phase detector includes a phase detection stage and a metastable prevention stage. The phase detection stage is arranged to receive the first clock and the second clock, and to output a phase comparison result in accordance with the phase of the first clock and the phase of the second clock. The metastable prevention stage is arranged to receive the phase comparison result, and to output a stable phase comparison result in accordance with the phase comparison result.Type: ApplicationFiled: May 12, 2014Publication date: July 2, 2015Applicant: Silicon Motion Inc.Inventor: Yu-Hsuan Cheng