Patents by Inventor Cheng-Rong Yang

Cheng-Rong 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).

  • Wafer cassette
    Patent number: 10096505
    Abstract: A wafer cassette includes a case, a plurality of wafer trays, and a plurality of transmission mechanisms. The wafer trays are disposed in the case. Each of the wafer trays includes a central opening, a first groove, and a second groove. The diameter of the second groove is greater than that of the first groove. A bottom surface of the second groove is higher than that of the first groove. The first and second grooves surround the central opening. Each of the transmission mechanisms is connected to the corresponding wafer tray to move the wafer tray between a pick-up position and a received position. Since the wafer tray has grooves with different diameters, the wafer tray is capable of receiving wafers with different sizes.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: October 9, 2018
    Assignee: MPI CORPORATION
    Inventors: Lin-Lin Chih, Chien-Hung Chen, Cheng-Rong Yang, Stojan Kanev
  • WAFER CASSETTE
    Publication number: 20170221733
    Abstract: A wafer cassette includes a case, a plurality of wafer trays, and a plurality of transmission mechanisms. The wafer trays are disposed in the case. Each of the wafer trays includes a central opening, a first groove, and a second groove. The diameter of the second groove is greater than that of the first groove. A bottom surface of the second groove is higher than that of the first groove. The first and second grooves surround the central opening. Each of the transmission mechanisms is connected to the corresponding wafer tray to move the wafer tray between a pick-up position and a received position. Since the wafer tray has grooves with different diameters, the wafer tray is capable of receiving wafers with different sizes.
    Type: Application
    Filed: January 25, 2017
    Publication date: August 3, 2017
    Inventors: LIN-LIN CHIH, Chien-Hung Chen, Cheng-Rong Yang, Stojan Kanev