Patents by Inventor Wen-Li Tsai

Wen-Li 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: 20080118631
    Abstract: A real-time system adapted to a PVD apparatus for monitoring and controlling film uniformity is described. The system includes a shielding plate, a monitoring device, and a data processing program. The shielding plate is disposed on an inner wall of a reaction chamber above a wafer stage. An opening in the center of the shielding plate exposes the wafer. The monitoring device including a scanner and a sensor respectively disposed on opposite sidewalls of the reaction chamber between the shielding plate and the wafer stage is used for measuring the flux of the particles on every portion of the wafer to acquire real-time uniformity data including a function of the wafer position and the flux. The data processing program compares the real-time uniformity data and reference uniformity data, and a feedback signal is outputted to the PVD apparatus to adjust the process parameter thereof for controlling film uniformity.
    Type: Application
    Filed: January 31, 2007
    Publication date: May 22, 2008
    Applicant: PROMOS TECHNOLOGIES INC.
    Inventors: Wen-Li Tsai, Yu-Min Tsai, Hsiao-Che Wu
  • Publication number: 20080102207
    Abstract: A gas delivering system for an in situ thermal treatment, a thin film deposition and a use of the same are provided. The gas delivering system integrates a thermal treatment system therein so that a thin film deposition and a by rapid thermal annealing can be performed alternatively on a wafer in a reaction chamber. Accordingly, the density of the thin film can be improved and the thermal budget of the process can be reduced.
    Type: Application
    Filed: March 8, 2007
    Publication date: May 1, 2008
    Applicant: Promos Technologies Inc.
    Inventors: Yu-Min Tsai, Hsiao-Che Wu, Wen-Li Tsai