Patents by Inventor Chi-Hung Liao

Chi-Hung Liao 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: 20240420612
    Abstract: A driving method includes steps of: providing a source operational amplifier (SOP) to drive a display element; operating the SOP at a first bias current value when the display element is refreshed with a first refresh rate; and operating the SOP at a second bias current value different from the first bias current value when the display element is refreshed with a second refresh rate different from the first refresh rate.
    Type: Application
    Filed: April 22, 2024
    Publication date: December 19, 2024
    Applicant: NOVATEX Microelectronics Corp
    Inventors: Po-Sheng Liao, Chi-Hung Lin, Shih-Hsiang Pan
  • Patent number: 12170218
    Abstract: A method includes detecting a location of a particle on a bottom surface of an electrostatic chuck; moving a platform to a position under the bottom surface of the electrostatic chuck and right under the particle; and rotating the platform about a center of the platform to remove the particle from the bottom surface of the electrostatic chuck.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: December 17, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yueh-Lin Yang, Chi-Hung Liao
  • Publication number: 20240408237
    Abstract: The present invention is related to a method and pharmaceutical composition for treating a cartilage damage in a subject (including a human or an animal), particularly osteoarthritis (OA), using extracellular vesicles (EVs) with SOX9 gene, called as “EV-SOX9”. The EV-SOX9 is obtained by encapsulating the SOX9 mRNA or the mRNA of its upstream and downstream gene in EVs, naïve EVs with high expression level of SOX9 mRNA or its upstream and downstream gene from different cell sources, or MSC-derived EV-SOX9, which is obtained by transferring the SOX9 gene or its upstream and downstream gene into a multipotent cell and collecting EVs.
    Type: Application
    Filed: June 7, 2024
    Publication date: December 12, 2024
    Applicants: FAR EASTERN MEMORIAL HOSPITAL, NATIONAL YANG MING CHIAO TUNG UNIVERSITY
    Inventors: Hsiu-Jung LIAO, Chih-Hung Chang, Chi-Ying Huang, Ly James Lee, Tai-Shan Cheng, Sin-Yu Chen
  • Publication number: 20240393519
    Abstract: A front light guide plate and a reflective display are provided. The reflective display includes a front light guide plate, a light source and a display device, and the front light guide plate includes a first surface and a second surface corresponding to the first surface. A first surface includes a plurality of optical structures. Each optical structure includes a first optical surface, and a second optical surface disposed with the first optical surface in face-to-face fashion. The light source is implemented on the side of the front light guide plate, and the display device is provided with a second surface. When the light beams from the light source are reflected by the first optical surface of the front light guide plate and enter the display device, portion of the light beams emitted from the first optical surface to the second optical surface will be absorbed or scattered by the light reducing layer.
    Type: Application
    Filed: July 25, 2023
    Publication date: November 28, 2024
    Inventors: CHENG-YU LIN, CHENG-HUNG YAO, CHI-CHANG LIAO
  • Publication number: 20240385511
    Abstract: A reticle enclosure includes a base including a first surface, a cover including a second surface and disposed on the base, wherein the base and the cover form an internal space therebetween that includes a reticle, and a layer of electrostatic discharge material disposed on the first surface, wherein the electrostatic discharge material reduces electrostatic charges on the reticle.
    Type: Application
    Filed: July 29, 2024
    Publication date: November 21, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chi-Hung LIAO, Po-Ming SHIH
  • Publication number: 20240342745
    Abstract: A method of preventing drippage in a liquid dispensing system includes generating at least a first proxy signal representing at least a first indirect measure of a position of a first automatic control valve (ACV), wherein the first ACV has positions ranging from fully closed to fully open. The method further includes recognizing, based on at least the first proxy signal, whether a failure state exists in which the first ACV has failed to close. The method further includes causing a second ACV to close when the failure state exists, wherein the second ACV is fluidically connected to the first ACV, and the second ACV has positions ranging from fully closed to fully open.
    Type: Application
    Filed: June 27, 2024
    Publication date: October 17, 2024
    Inventors: Chien-Hung WANG, Chun-Chih LIN, Chi-Hung LIAO, Yung-Yao LEE, Wei Chang CHENG
  • Publication number: 20240308021
    Abstract: A chemical mechanical polishing method includes holding a wafer in a carrier over a polishing pad, dispensing a first slurry comprising a plurality of first abrasive particles into the carrier, rotating at least one of the carrier and the polishing pad, halting the dispensing of the first slurry, and dispensing a second slurry into the carrier after halting the dispensing of the first slurry, wherein the second slurry comprises a plurality of second abrasive particles smaller than the first abrasive particles.
    Type: Application
    Filed: May 20, 2024
    Publication date: September 19, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Wei-Chang CHENG, Chi-Hung LIAO
  • Publication number: 20240312814
    Abstract: A method of operating a processing apparatus is provided. The method includes placing a substrate storage container on a load port. The method includes matching a plurality of positioning holes are on a base board of the substrate storage container with a plurality of positioning pins on a base frame of the load port. The method also includes transferring a substrate from the substrate storage container when the substrate storage container is placed on the base frame.
    Type: Application
    Filed: May 24, 2024
    Publication date: September 19, 2024
    Inventors: Min-Cheng WU, Chi-Hung LIAO
  • Publication number: 20240310743
    Abstract: An apparatus for reducing hydrogen permeation of a mask is provided when generating extreme ultraviolet (EUV) radiation. The apparatus includes a mask stage configured to hold the mask, a hydrogen dispensing nozzle configured to eject hydrogen below the mask, and a trajectory correcting assembly. The trajectory correcting assembly includes a correcting nozzle and a gas flow detector. The correcting nozzle is configured to dispense at least one flow adjusting gas to adjust a trajectory of the hydrogen away from the mask to reduce hydrogen permeation at an edge of the mask. The gas flow detector is configured to measure a variation of an airflow of the hydrogen adjusted by the at least one flow adjusting gas.
    Type: Application
    Filed: May 22, 2024
    Publication date: September 19, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chi-Hung LIAO, Po-Ming SHIH
  • Publication number: 20240295831
    Abstract: A method is described. The method includes obtaining a relationship between a thickness of a contamination layer formed on a mask and an amount of compensation energy to remove the contamination layer, obtaining a first thickness of a first contamination layer formed on the mask from a thickness measuring device, and applying first compensation energy calculated from the relationship to a light directed to the mask.
    Type: Application
    Filed: April 26, 2024
    Publication date: September 5, 2024
    Inventors: Ming-Hsun LIN, Yu-Hsiang HO, Chi-Hung LIAO, Teng Kuei CHUANG, Jhun Hua CHEN
  • Patent number: 12066756
    Abstract: A method includes holding a mask using an electrostatic chuck. The mask includes a substrate having a first bump and a second bump separated from the first bump and a patterned layer. The first bump and the second bump face the electrostatic chuck. The substrate is between the patterned layer and the electrostatic chuck. The first bump and the second bump are spaced apart from the patterned layer. The first bump and the second bump are ring strips in a top view, and the first bump has a rectangular cross section and the second bump has a triangular cross section. The method further includes generating extreme ultraviolet (EUV) radiation using an EUV light source; and directing the EUV radiation toward the mask, such that the EUV radiation is reflected by the mask.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: August 20, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chi-Hung Liao, Yueh-Lin Yang
  • Patent number: 12048944
    Abstract: A method of preventing drippage in a fluid dispensing system. The fluid dispensing system includes a first automatic control valve (ACV), an input of the first ACV connected to fluid-source of fluid, the first ACV having positions ranging from fully closed to fully open, and a second ACV, an input of the second ACV being connected to an output of the first ACV, and an output of the second ACV being connected to a nozzle, the second ACV having positions ranging from fully closed to fully open. The method includes generating a first proxy signal representing at least a first indirect measure of a position of the first ACV. The method includes recognizing, based on at least the first proxy signal that a failure state exists in which the first ACV has failed to close. The method includes causing the second ACV to close when the failure state exists.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: July 30, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chien-Hung Wang, Chun-Chih Lin, Chi-Hung Liao, Yung-Yao Lee, Wei Chang Cheng
  • Publication number: 20240246124
    Abstract: Embodiments of the present disclosure relate to apparatus and methods for cleaning an exhaust path of a semiconductor process tool. One embodiment provides an exhaust pipe section and a pipe cleaning assembly connected between a semiconductor process tool and a factory exhaust. The pipe cleaning assembly includes a residue remover disposed in the exhaust pipe section. The residue remover is operable to move in the exhaust pipe section to dislodge accumulated materials from an inner surface of the exhaust pipe section.
    Type: Application
    Filed: April 4, 2024
    Publication date: July 25, 2024
    Inventors: Wei Chang CHENG, Cheng-Kuang CHEN, Chi-Hung LIAO
  • Patent number: 12038634
    Abstract: A cholesteric liquid crystal composite display device includes a cholesteric liquid crystal reflective display device and a transmissive display device. The transmissive display device is located below the cholesteric liquid crystal reflective display device. When the cholesteric liquid crystal reflective display device is displayed in a transparent state, the light transmittance of the cholesteric liquid crystal reflective display device is higher than that of the cholesteric liquid crystal reflective display device when it is displayed in a dark state through a rated driving mode. Thereby, the display of the cholesteric liquid crystal composite display device is made clearer and the display quality is improved.
    Type: Grant
    Filed: August 7, 2023
    Date of Patent: July 16, 2024
    Assignee: IRIS OPTRONICS CO., LTD.
    Inventors: Cheng-Hung Yao, Chi-Chang Liao
  • Publication number: 20240231241
    Abstract: A photolithography system utilizes tin droplets to generate extreme ultraviolet radiation for photolithography. The photolithography system irradiates the droplets with a laser. The droplets become energized and emit extreme ultraviolet radiation. A collector reflects the extreme ultraviolet radiation toward a photolithography target. The photolithography system reduces splashback of the tin droplets onto the receiver by generating a net electric charge within the droplets using a charge electrode and decelerating the droplets by applying an electric field with a counter electrode.
    Type: Application
    Filed: March 20, 2024
    Publication date: July 11, 2024
    Inventors: Po-Ming SHIH, Chi-Hung LIAO
  • Patent number: 12027407
    Abstract: A substrate support apparatus includes a housing and a plurality of spherical supports. The housing has a top surface, the top surface including a plurality of openings. The housing is configured to position the plurality of spherical supports within the plurality of openings so that topmost surfaces of the plurality of spherical supports are arranged in a plane above the top surface. A spherical support of the plurality of spherical supports is rotatable within the housing.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: July 2, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yueh Lin Yang, Chi-Hung Liao, Fei-Gwo Tsai
  • Patent number: 12025922
    Abstract: An apparatus for reducing hydrogen permeation of a mask is provided when generating extreme ultraviolet (EUV) radiation. The apparatus includes a mask stage configured to hold the mask, a hydrogen dispensing nozzle configured to eject hydrogen below the mask, and a trajectory correcting assembly. The trajectory correcting assembly includes a correcting nozzle and a gas flow detector. The correcting nozzle is configured to dispense at least one flow adjusting gas to adjust a trajectory of the hydrogen away from the mask to reduce hydrogen permeation at an edge of the mask. The gas flow detector is configured to measure a variation of an airflow of the hydrogen adjusted by the at least one flow adjusting gas.
    Type: Grant
    Filed: January 23, 2023
    Date of Patent: July 2, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chi-Hung Liao, Po-Ming Shih
  • Patent number: 12025923
    Abstract: A method includes shooting a primary droplet and a satellite droplet from a droplet generator along a common initial direction; applying a force to the primary droplet and the satellite droplet, wherein after applying the force, the primary droplet has a first deflection toward a first direction different than the common initial direction, and the satellite droplet has a second deflection toward a second direction different than the common initial direction, wherein the second deflection of the satellite droplet is greater than the first deflection of the primary droplet; and generating an extreme ultraviolet (EUV) light using an excitation laser hitting the primary droplet with the first deflection.
    Type: Grant
    Filed: January 6, 2023
    Date of Patent: July 2, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chi-Hung Liao, Min-Cheng Wu
  • Patent number: 12017322
    Abstract: A chemical mechanical polishing method includes holding a wafer in a carrier over a polishing pad, dispensing a first slurry comprising a plurality of first abrasive particles into the carrier, rotating at least one of the carrier and the polishing pad, halting the dispensing of the first slurry, and dispensing a second slurry into the carrier after halting the dispensing of the first slurry, wherein the second slurry comprises a plurality of second abrasive particles smaller than the first abrasive particles.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: June 25, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Wei-Chang Cheng, Chi-Hung Liao
  • Patent number: 12020963
    Abstract: A method of performing a substrate detection process is provided. The method includes emitting a signal to a surface of a substrate from an emitter disposed in a substrate storage container. The method also includes collecting the signal reflected from the surface of the substrate by a receiver disposed in the substrate storage container. The method further includes transmitting data corresponding to the collected signal to a signal processor. In addition, the method includes analyzing the data, and determining whether an action is to be performed on the substrate based on the analyzing.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: June 25, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Min-Cheng Wu, Chi-Hung Liao