Patents by Inventor Cheng-Hsiang Lu

Cheng-Hsiang Lu 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: 20250046636
    Abstract: Disclosed in a robotic arm with vibration detection and image recognition, of which a main structure includes a wafer transportation device, a robotic arm rotatably mounted on the wafer transportation device, an image acquiring device arranged on the robotic arm, at least one first vibration detector arranged on the robotic arm, a second vibration detector arranged in an interior of the wafer transportation device, and a monitoring device arranged at one side of the wafer transportation device. The monitoring device includes a status inspecting part in information connection with the image acquiring device and a vibration inspecting part in information connection with the first vibration detector and the second vibration detector. By means of the above structure, the robotic arm is additionally provided with functions of wafer storage status inspecting, impact sensing, and lifespan predicting, so as to prevent mutual influence between machine structure operation instability and inspection error.
    Type: Application
    Filed: August 4, 2023
    Publication date: February 6, 2025
    Inventors: Cheng-Hsiang LU, Chung-Hsien LU, Yao-Tsung HSUEH, Bo-Wen LIN
  • Publication number: 20250046637
    Abstract: A device and a method for robotic arm automatic correction are disclosed. A main structure includes a robotic arm including an optical photographing mechanism, and a wafer storage mechanism at one side of the robotic arm and including a graphic data code. The optical photographing mechanism is in information connection with an optical recognition module that includes a data code analysis unit, an object distance analysis unit, and a wafer center analysis unit. A user uses the optical photographing mechanism to photograph the graphic data code for implementing a first round of position correction for the robotic arm. Then, the optical photographing mechanism photographs a wafer and performs an operation of focusing for calculation of a distance between the robotic arm and a center point of the wafer by means of the object distance analysis unit in combination with the wafer center analysis unit for a second round of correction.
    Type: Application
    Filed: August 4, 2023
    Publication date: February 6, 2025
    Inventors: Cheng-Hsiang LU, Chung-Hsien LU, Yu-Hsin LIU, Jen-Wei CHANG, Jyun-Yi LU, Bo-Wen LIN
  • Patent number: 12101559
    Abstract: A wafer position status inspection apparatus includes a wafer transportation device, a robotic arm rotatably mounted on the wafer transportation device, an image capture device arranged on the robotic arm, a light flashing device arranged at one side of the image capture device, and a status inspection section in information connection with the image capture device. An image capturing direction of the image capture device is set consistent with a gripping direction of the robotic arm, and a light projecting direction of the light flashing device is consistent with the image capturing direction. The light flashing device projects light on a wafer to generate a light-reflecting contour, which is captured by the image capture device to form a wafer contour image based on which the status inspection section acquires a wafer deposition status to identify various wafer statuses including incline, overlap, absence, and warp.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: September 24, 2024
    Assignee: JUN-FU TECHNOLOGY INC
    Inventors: Yu-Hsin Liu, Cheng-Hsiang Lu, Daisuke Sasaki
  • Publication number: 20240129632
    Abstract: A wafer position status inspection apparatus includes a wafer transportation device, a robotic arm rotatably mounted on the wafer transportation device, an image capture device arranged on the robotic arm, a light flashing device arranged at one side of the image capture device, and a status inspection section in information connection with the image capture device. An image capturing direction of the image capture device is set consistent with a gripping direction of the robotic arm, and a light projecting direction of the light flashing device is consistent with the image capturing direction. The light flashing device projects light on a wafer to generate a light-reflecting contour, which is captured by the image capture device to form a wafer contour image based on which the status inspection section acquires a wafer deposition status to identify various wafer statuses including incline, overlap, absence, and warp.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 18, 2024
    Inventors: Yu-Hsin Liu, Cheng-Hsiang Lu, Daisuke Sasaki
  • Publication number: 20220310412
    Abstract: A gas circulation structure of an equipment front end module is provided, having a main structure including a chamber, a filter assembly, at least one connection pipeline, at least one wind collection device, at least one first fan, at least one second fan, at least one gas inlet port, at least one gas outlet port, and at least one gas discharge valve. By means of the above structure, gas is introduced through the gas inlet port into the connection pipeline and passes through the first fan to move, through the filter module, into the chamber to be caused by the second fan to return back to the connection pipeline to complete circulation. As such, the time required for filling gas is shortened; gas is caused to converge to thereby enhance the circulation efficiency; noise is reduced; dust is properly blown away; and subsequent service and maintenance is made easy.
    Type: Application
    Filed: March 23, 2021
    Publication date: September 29, 2022
    Inventors: Jen-Wei Chang, Chung-Hsien Lu, Cheng-Hsiang Lu