Patents by Inventor Chih-Hsiang Liu

Chih-Hsiang Liu 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: 12270638
    Abstract: A measurement system including an excitation light source, an image sensor, and a calculator is provided. The excitation light source is configured to emit an excitation light beam. The image sensor is configured to record an image of the excitation light beam passing through a glass substrate having a plurality of vias. The image is a 2D interference pattern. The calculator is electrically connected to the image sensor. The calculator analyzes a 3D geometric-structure image of the vias in the glass substrate according to the image. A measurement method is also provided.
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: April 8, 2025
    Assignee: Industrial Technology Research Institute
    Inventors: Hsiang-Chun Wei, Chun-Wei Lo, Chung-Lun Kuo, Chih-Hsiang Liu
  • Patent number: 12203971
    Abstract: A method for inspecting LED dies includes the following steps. First electrodes and second electrodes of LED dies to be inspected are short-circuited via a conductive layer on an inspection substrate, or an inspection bias voltage is applied between the first electrodes and the second electrodes of the LED dies. An excitation light is irradiated on the LED dies to be inspected on the inspection substrate such that the LED dies to be inspected emit a secondary light. When the first electrodes and the second electrodes of the LED dies to be inspected are open, short-circuited, and/or subjected to the inspection bias voltage, the secondary light is captured via an optical sensor. An output of the optical sensor is received via a computer and a spectrum difference of the secondary light is calculated to determine whether the LED dies are abnormal or to classify the LED dies to be inspected.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: January 21, 2025
    Assignee: Industrial Technology Research Institute
    Inventors: Yan-Rung Lin, Chih-Hsiang Liu, Chung-Lun Kuo
  • Publication number: 20250023226
    Abstract: An antenna device includes an antenna substrate and a semiconductor package. The antenna substrate includes a base and an input pad, wherein the base has a first surface, and the input pad is disposed on a first portion of the first surface. The semiconductor package is disposed on the first surface of the semiconductor package. The semiconductor package has a second surface facing the first surface, and an entirety of the second surface and a second portion of the first surface overlap.
    Type: Application
    Filed: June 6, 2024
    Publication date: January 16, 2025
    Inventors: Chih-Hsiang LIU, Shih-Huang YEH
  • Publication number: 20240413536
    Abstract: An antenna and an antenna package are provided. The antenna includes an antenna substrate, an antenna layer, a grounding layer and a first conductive feature. The antenna substrate has a top surface and a bottom surface opposite to the top surface. The antenna layer is disposed on the top surface of the antenna substrate. The grounding layer is disposed on the bottom surface of the antenna substrate. The first conductive feature is embedded in the antenna substrate and close to a first edge of the antenna layer. The first conductive feature and the grounding layer are spaced apart by a part of the antenna substrate. The first conductive feature includes a first portion. The angle between the first portion or an extended line of the first portion and the top surface of the antenna substrate is greater than 0 degrees and less than 180 degrees.
    Type: Application
    Filed: May 24, 2024
    Publication date: December 12, 2024
    Inventors: Chih-Hsiang LIU, Chung-Hsin CHIANG, Shih-Huang YEH
  • Publication number: 20240386854
    Abstract: A cockpit display system includes a cockpit, a first display apparatus, a second display apparatus, a first light sensor, a second light sensor and a brightness distribution calculation module. The first light sensor is suitable for detecting a first ambient light brightness. The second light sensor is suitable for detecting a second ambient light brightness. The brightness distribution calculation module is suitable for respectively calculating a first brightness, a second brightness, a third brightness and a fourth brightness of the first display area and the second display area of the first display apparatus and the third display area and the fourth display area of the second display apparatus under a same display gray level according to the first ambient light brightness and the second ambient light brightness. The first brightness, the second brightness, the third brightness and the fourth brightness are different from each other.
    Type: Application
    Filed: December 21, 2023
    Publication date: November 21, 2024
    Inventors: Yu-Chi CHEN, Teng-Ying HUANG, Chih-Hsiang LIU, Li-Heng HSU, Chi-Yu LIU, Tsung-Hsiung WANG, Chia-Sheng CHENG
  • Patent number: 12099053
    Abstract: A method of training AI for label-free cell viability determination includes a step of providing a cell sample, a step of obtaining a fluorescence image and a DHM image of the cell sample, a step of determining a first cell viability of the cell sample according to the fluorescence image of the cell sample, a step of labeling the DHM image of the cell sample as a model specifying the first cell viability, and a step of performing AI training by using the model containing the DHM image of the cell sample.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: September 24, 2024
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsiang-Chun Wei, Chih-Hsiang Liu, Chung-Lun Kuo, Chun-Wei Lo, Chia-Hung Cho, Wei-Hsiung Tsai
  • Publication number: 20240200935
    Abstract: A measurement system including an excitation light source, an image sensor, and a calculator is provided. The excitation light source is configured to emit an excitation light beam. The image sensor is configured to record an image of the excitation light beam passing through a glass substrate having a plurality of vias. The image is a 2D interference pattern. The calculator is electrically connected to the image sensor. The calculator analyzes a 3D geometric-structure image of the vias in the glass substrate according to the image. A measurement method is also provided.
    Type: Application
    Filed: December 27, 2022
    Publication date: June 20, 2024
    Applicant: Industrial Technology Research Institute
    Inventors: Hsiang-Chun Wei, Chun-Wei Lo, Chung-Lun Kuo, Chih-Hsiang Liu
  • Patent number: 12007221
    Abstract: A heterogeneous integration detecting method and a heterogeneous integration detecting apparatus are provided. The heterogeneous integration detecting method includes the following. Under the condition of maintaining the same relative distance between an interference objective lens and a sample, the relative posture of the interference objective lens and the sample is continuously adjusted according to the change of an image of the sample in the field of view of the interference objective lens until a first optical axis of the interference objective lens is determined to be substantially perpendicular to the surface of the sample according to the image. The interference objective lens is replaced with an imaging objective lens and the geometric profile of at least one via of the sample is detected. A second optical axis of the imaging objective lens after replacement overlaps with the first optical axis of the interference objective lens before replacement.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: June 11, 2024
    Assignee: Industrial Technology Research Institute
    Inventors: Hsiang-Chun Wei, Chih-Hsiang Liu, Yi-Sha Ku, Chung-Lun Kuo, Chun-Wei Lo, Chieh-Yi Lo
  • Patent number: 11843173
    Abstract: An antenna module and a wireless transceiver device are provided. The wireless transceiver device includes an antenna module. The antenna module includes a circuit board and at least one antenna array. The at least one antenna array defines a midline. The at least one antenna array includes a plurality of antenna elements and a signal feeding line. Each antenna element includes a feeding branch and a radiating portion. The radiating portion is coupling to the feeding branch, and the radiating portion is exposed on the upper surface of the circuit board. The signal feeding line is arranged in the circuit board and is perpendicular to the midline, and the signal feeding line is coupling to the feeding branch. The radiating portion defines an extension line along its extension direction. There is an included angle between the extension line and the midline.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: December 12, 2023
    Assignee: WISTRON NEWEB CORPORATION
    Inventors: Chih-Hsiang Liu, Tsun-Che Huang, Wei-Tung Yang
  • Publication number: 20230184819
    Abstract: A method for inspecting LED dies includes the following steps. First electrodes and second electrodes of LED dies to be inspected are short-circuited via a conductive layer on an inspection substrate, or an inspection bias voltage is applied between the first electrodes and the second electrodes of the LED dies. An excitation light is irradiated on the LED dies to be inspected on the inspection substrate such that the LED dies to be inspected emit a secondary light. When the first electrodes and the second electrodes of the LED dies to be inspected are open, short-circuited, and/or subjected to the inspection bias voltage, the secondary light is captured via an optical sensor. An output of the optical sensor is received via a computer and a spectrum difference of the secondary light is calculated to determine whether the LED dies are abnormal or to classify the LED dies to be inspected.
    Type: Application
    Filed: December 6, 2022
    Publication date: June 15, 2023
    Applicant: Industrial Technology Research Institute
    Inventors: Yan-Rung Lin, Chih-Hsiang Liu, Chung-Lun Kuo
  • Publication number: 20230160879
    Abstract: A method of training AI for label-free cell viability determination includes a step of providing a cell sample, a step of obtaining a fluorescence image and a DHM image of the cell sample, a step of determining a first cell viability of the cell sample according to the fluorescence image of the cell sample, a step of labeling the DHM image of the cell sample as a model specifying the first cell viability, and a step of performing AI training by using the model containing the DHM image of the cell sample.
    Type: Application
    Filed: December 28, 2021
    Publication date: May 25, 2023
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsiang-Chun WEI, Chih-Hsiang LIU, Chung-Lun KUO, Chun-Wei LO, Chia-Hung CHO, Wei-Hsiung TSAI
  • Patent number: 11656181
    Abstract: An inspection apparatus for inspecting a light-emitting diode wafer is provided. The inspection apparatus includes a Z-axis translation stage, a sensing probe, a height measurement module, a carrier, an illumination light source, and a processing device. The sensing probe is integrated with the Z-axis translation stage. The Z-axis translation stage is adapted to drive the sensing probe to move in a Z axis. The sensing probe includes a photoelectric sensor, a beam splitter, and a photoelectric sensing structure. One of the photoelectric sensor of the sensing probe and the height measurement module is adapted to receive a light beam penetrating the beam splitter, and the other one of the photoelectric sensor of the sensing probe and the height measurement module is adapted to receive a light beam reflected by the beam splitter. The carrier is configured to carry the light-emitting diode wafer. The illumination light source is configured to emit an illumination beam to irradiate the light-emitting diode wafer.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: May 23, 2023
    Assignee: Industrial Technology Research Institute
    Inventors: Yan-Rung Lin, Chih-Hsiang Liu, Chung-Lun Kuo, Hsiang-Chun Wei, Yeou-Sung Lin, Chieh-Yi Lo
  • Publication number: 20230152086
    Abstract: A heterogeneous integration detecting method and a heterogeneous integration detecting apparatus are provided. The heterogeneous integration detecting method includes the following. Under the condition of maintaining the same relative distance between an interference objective lens and a sample, the relative posture of the interference objective lens and the sample is continuously adjusted according to the change of an image of the sample in the field of view of the interference objective lens until a first optical axis of the interference objective lens is determined to be substantially perpendicular to the surface of the sample according to the image. The interference objective lens is replaced with an imaging objective lens and the geometric profile of at least one via of the sample is detected. A second optical axis of the imaging objective lens after replacement overlaps with the first optical axis of the interference objective lens before replacement.
    Type: Application
    Filed: December 27, 2021
    Publication date: May 18, 2023
    Applicant: Industrial Technology Research Institute
    Inventors: Hsiang-Chun Wei, Chih-Hsiang Liu, Yi-Sha Ku, Chung-Lun Kuo, Chun-Wei Lo, Chieh-Yi Lo
  • Publication number: 20220416435
    Abstract: An antenna module and a wireless transceiver device are provided. The wireless transceiver device includes an antenna module. The antenna module includes a circuit board and at least one antenna array. The at least one antenna array defines a midline. The at least one antenna array includes a plurality of antenna elements and a signal feeding line. Each antenna element includes a feeding branch and a radiating portion. The radiating portion is coupling to the feeding branch, and the radiating portion is exposed on the upper surface of the circuit board. The signal feeding line is arranged in the circuit board and is perpendicular to the midline, and the signal feeding line is coupling to the feeding branch. The radiating portion defines an extension line along its extension direction. There is an included angle between the extension line and the midline.
    Type: Application
    Filed: October 20, 2021
    Publication date: December 29, 2022
    Inventors: CHIH-HSIANG LIU, TSUN-CHE HUANG, WEI-TUNG YANG
  • Patent number: 11507020
    Abstract: An optical measurement system comprises a polarization beam splitter for dividing an incident beam into a reference beam and a measurement beam, a first beam splitter for reflecting the measurement beam to form a first reflected measurement beam, a spatial light modulator for modulating the first reflected measurement beam to form a modulated measurement beam, a condenser lens for focusing the modulated measurement beam to an object to form a penetrating measurement beam, an objective lens for converting the penetrating measurement beam into a parallel measurement beam, a mirror for reflecting the parallel measurement beam to form an object beam, a second beam splitter for reflecting the reference beam to a path coincident with that of the object beam, and a camera for receiving an interference signal generated by the reference beam and the object beam to generate an image of the object.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: November 22, 2022
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsiang-Chun Wei, Chung-Lun Kuo, Chia-Hung Cho, Chun-Wei Lo, Chih-Hsiang Liu
  • Patent number: 11474144
    Abstract: An inspection apparatus including an illumination light source, a sensing probe and a processing device is provided. The illumination light source emits an illumination beam to simultaneously irradiate the plurality of light-emitting diode. The sensing probe is configured to measure a charge distribution, an electric field distribution, or a voltage distribution on the plurality of light-emitting diodes simultaneously irradiated by the illumination beam. The processing device determines a plurality of electro-optical characteristics of the plurality of light-emitting diodes through the charge distribution, the electric field distribution, or the voltage distribution on the plurality of light-emitting diodes simultaneously irradiated by the illumination beam. Moreover, a method of for inspecting light-emitting diodes is also provided.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: October 18, 2022
    Assignee: Industrial Technology Research Institute
    Inventors: Yan-Rung Lin, Chung-Lun Kuo, Chih-Hsiang Liu, Shie-Chang Jeng
  • Patent number: 11248903
    Abstract: A three-dimension measurement device includes a moving device, a projecting device, a surface-type image-capturing device and a processing device. The moving device carries an object, and moves the object to a plurality of positions. The projecting device generates a first light to the object. The surface-type image-capturing device senses a second light generated by the object in response to the first light to generate a phase image on each of the positions. The processing device is coupled to the surface-type image-capturing device and receives the phase images. The processing device performs a region-of-interest (ROI) operation for the phase images to generate a plurality of ROI images. The processing device performs a multi-step phase-shifting operation for the ROI images to calculate the surface height distribution of the object.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: February 15, 2022
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chia-Hung Cho, Po-Yi Chang, Yi-Sha Ku, Kai-Ping Chuang, Chih-Hsiang Liu, Fu-Cheng Yang
  • Publication number: 20210231570
    Abstract: An inspection apparatus for inspecting a light-emitting diode wafer is provided. The inspection apparatus includes a Z-axis translation stage, a sensing probe, a height measurement module, a carrier, an illumination light source, and a processing device. The sensing probe is integrated with the Z-axis translation stage. The Z-axis translation stage is adapted to drive the sensing probe to move in a Z axis. The sensing probe includes a photoelectric sensor, a beam splitter, and a photoelectric sensing structure. One of the photoelectric sensor of the sensing probe and the height measurement module is adapted to receive a light beam penetrating the beam splitter, and the other one of the photoelectric sensor of the sensing probe and the height measurement module is adapted to receive a light beam reflected by the beam splitter. The carrier is configured to carry the light-emitting diode wafer. The illumination light source is configured to emit an illumination beam to irradiate the light-emitting diode wafer.
    Type: Application
    Filed: December 28, 2020
    Publication date: July 29, 2021
    Applicant: Industrial Technology Research Institute
    Inventors: Yan-Rung Lin, Chih-Hsiang Liu, Chung-Lun Kuo, Hsiang-Chun Wei, Yeou-Sung Lin, Chieh-Yi Lo
  • Publication number: 20210149337
    Abstract: An optical measurement system comprises a polarization beam splitter for dividing an incident beam into a reference beam and a measurement beam, a first beam splitter for reflecting the measurement beam to form a first reflected measurement beam, a spatial light modulator for modulating the first reflected measurement beam to form a modulated measurement beam, a condenser lens for focusing the modulated measurement beam to an object to form a penetrating measurement beam, an objective lens for converting the penetrating measurement beam into a parallel measurement beam, a mirror for reflecting the parallel measurement beam to form an object beam, a second beam splitter for reflecting the reference beam to a path coincident with that of the object beam, and a camera for receiving an interference signal generated by the reference beam and the object beam to generate an image of the object.
    Type: Application
    Filed: September 22, 2020
    Publication date: May 20, 2021
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsiang-Chun WEI, Chung-Lun KUO, Chia-Hung CHO, Chun-Wei LO, Chih-Hsiang LIU
  • Patent number: 11002783
    Abstract: A method for inspecting light-emitting diodes (LEDs) including following steps is provided. A plurality of LEDs are provided. A charge distribution, an electrical field distribution, or a voltage distribution on the LEDs that are irradiated by an illumination beam at the same time are inspected by a sensing probe, so as to determine electro-optical characteristics of the LEDs. Besides, an inspection apparatus is also provided.
    Type: Grant
    Filed: December 24, 2018
    Date of Patent: May 11, 2021
    Assignee: Industrial Technology Research Institute
    Inventors: Yan-Rung Lin, Chih-Hsiang Liu, Shie-Chang Jeng