Patents by Inventor Chun-Hua Chang

Chun-Hua Chang 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: 20070141822
    Abstract: A multi-step anneal method is provided. First, a substrate is provided. Then, a dielectric layer comprising a damascene structure is formed over the substrate, and a barrier/seed layer is formed over the damascene structure. Next, a metal layer is formed over the barrier layer, and performing a first anneal step in-situ to anneal the substrate at a first temperature range with a first environment. Thereafter, a metal chemical mechanical polish (CMP) step is performed to remove a portion of the metal layer until a portion of the barrier layer is exposed. Then, a second anneal step is performed to anneal the substrate at a second temperature range with a second environment.
    Type: Application
    Filed: December 15, 2005
    Publication date: June 21, 2007
    Inventors: Jiann-Fu Chen, Meng-Hsiu Ho, Chun-Ting Hu, Chun-Hua Chang
  • Publication number: 20020103084
    Abstract: The present invention is directed to a concentrated natural pesticide which contains a soybean component. The soybean component can be soybean extract, soybean slurry, soybean powder, or soybean paste. The soybean component is typically diluted with water and then sprayed onto plants to act as an insecticide or to control plant diseases. The concentrated natural pesticide can also comprise a soybean component and a second component which is selected from a group of oils, or an aldehyde such as cinnamic aldehyde. Although foliar application of the diluted pesticide is the preferred application, soil application can also be used.
    Type: Application
    Filed: November 8, 2001
    Publication date: August 1, 2002
    Inventors: Hsinhung John Hsu, Chun-Hua Chang
  • Publication number: 20010055628
    Abstract: The present invention is directed to a natural pesticide, which comprises two oil components. The first component is selected from at least one of the volatile oils and the other component is selected from at least one of the non-volatile oils. Mixing of these two oil components greatly increases the effectiveness for use as a pesticide than if the oils were used separately.
    Type: Application
    Filed: May 10, 2001
    Publication date: December 27, 2001
    Inventors: Hsinhung John Hsu, Chun-Hua Chang