Patents by Inventor Yu-Chan TSAI

Yu-Chan TSAI 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: 20250022721
    Abstract: A method for making a multi-chip package device includes: providing a lead frame unit having a plurality of lead frames, each of the lead frames having a base seat that has an upper surface and a bottom surface, and a plurality of leads; electrically attaching a transistor chip onto the base seat, the transistor chip having a plurality of electrode pads; attaching a circuit control chip to the base seat; covering the transistor chip with a main conducting part, and electrically connecting the main conducting part with at least one of the source electrode pads; electrically connecting the circuit control chip to another source electrode pad; encapsulating the transistor chip and the circuit control chip to expose a leg part; and bending the leg part that is exposed to form a planar conducting portion having a bottom surface coplanar with the bottom surface of the base seat.
    Type: Application
    Filed: June 24, 2024
    Publication date: January 16, 2025
    Inventors: YUAN-SHUN CHANG, KAO-WAY TU, PING-CHIA CHUNG, YU-CHAN TSAI
  • Publication number: 20250022846
    Abstract: A multi-chip package device includes a lead frame, a transistor chip, a metallic frame, a circuit control chip, and an encapsulation layer. The lead frame has a base seat, and a plurality of leads. The transistor chip is disposed on the base seat, and includes a plurality of source electrode pads, a gate electrode and a drain electrode. The metallic frame has a main conducting part and a conducting leg having a first conducting section and a second conducting section. The circuit control chip is disposed on the base seat and electrically connected to the transistor chip and the leads. The encapsulation layer envelops the lead frame, the transistor chip, the main conducting part, the first conducting section, and the circuit control chip to expose the second conducting section of the conducting leg.
    Type: Application
    Filed: June 24, 2024
    Publication date: January 16, 2025
    Inventors: YUAN-SHUN CHANG, KAO-WAY TU, PING-CHIA CHUNG, YU-CHAN TSAI
  • Publication number: 20230029508
    Abstract: Some implementations described herein provide a gas curtain system. The gas curtain system includes various components to prevent a gas flowing within a chamber of an interface tool from flowing through an opening into a transport carrier adjacent to the interface tool. The gas curtain system may include a gas distribution component along an edge of the opening that generates a flow of another gas across the opening towards an opposite edge of the opening. In this way, the gas from the chamber is prevented from entering the transport carrier. By preventing the gas from the chamber from entering the transport carrier, a relative humidity within an environment of the transport carrier is maintained such that condensation of moisture on one or more semiconductor wafers within the transport carrier is mitigated.
    Type: Application
    Filed: May 5, 2022
    Publication date: February 2, 2023
    Inventors: Yu-Syuan TSAI, Chen-Yuan KAO, Chia-Han LAI, Hong-Ming WU, Yu-Chan TSAI, Chun-Hsien HUANG, Ken-Yu CHANG