Patents by Inventor Jin-Feng SHIU

Jin-Feng SHIU 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).

  • Method and apparatus for recycling waste sulfuric acid
    Patent number: 9278860
    Abstract: A method and an apparatus for recycling waste sulfuric acid solution are provided. The method includes providing a reaction tank and introducing a waste sulfuric acid (H2SO4) solution into the reaction tank, and the waste sulfuric acid solution includes hydrogen peroxide (H2O2). The method also includes supplying a compound containing chlorine into the reaction tank. The method further includes mixing the compound containing chlorine with the waste sulfuric acid solution to promote a chemical reaction that decomposes the hydrogen peroxide (H2O2).
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: March 8, 2016
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Jin-Feng Shiu, Rouh-Jier Wang, Ching-Jung Hsu, Wan-Yu Chen, Han-Ru Hung
  • METHOD AND APPARATUS FOR RECYCLING WASTE SULFURIC ACID
    Publication number: 20160023901
    Abstract: A method and an apparatus for recycling waste sulfuric acid solution are provided. The method includes providing a reaction tank and introducing a waste sulfuric acid (H2SO4) solution into the reaction tank, and the waste sulfuric acid solution includes hydrogen peroxide (H2O2). The method also includes supplying a compound containing chlorine into the reaction tank. The method further includes mixing the compound containing chlorine with the waste sulfuric acid solution to promote a chemical reaction that decomposes the hydrogen peroxide (H2O2).
    Type: Application
    Filed: July 22, 2014
    Publication date: January 28, 2016
    Inventors: Jin-Feng SHIU, Rouh-Jier WANG, Ching-Jung HSU, Wan-Yu CHEN, Han-Ru HUNG