Patents by Inventor Rong Duan

Rong Duan 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).

  • Patent number: 6866182
    Abstract: The invention provides an apparatus and a method for preventing oxidation of an electronic device, such as a semiconductor leadframe, when it is heated. The apparatus comprises an area in which said device is to be heated and inlet means adapted to supply a relatively inert gas to the said area. In particular, the apparatus includes a porous distribution element through which the inert gas is passed from the inlet means to said area, whereby to protect the electronic device in the area from oxidation.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: March 15, 2005
    Assignee: ASM Technology Singapore PTE Ltd.
    Inventors: Yam Mo Wong, Ka Shing Kenny Kwan, Rong Duan, Zhao Ya Rui
  • Publication number: 20040115959
    Abstract: An apparatus to prevent oxidation of an electronic device, such as a semiconductor substrate during a semiconductor packaging process, comprises a substantially-enclosed conduit having at least one movable support defining a path through which the electronic device may travel and a plurality of gas outlets to introduce a relatively inert gas into the conduit. Conveying means adapted to engage and move the electronic device along the conduit is provided, and an opening along a portion of the conduit allows engagement between the conveying means and the electronic device. Actuating means are adapted to shift the movable support whereby the size of the path is adjustable to suit different electronic devices.
    Type: Application
    Filed: December 17, 2002
    Publication date: June 17, 2004
    Applicant: ASM Technology Singapore Pte Ltd
    Inventors: Boon June Yeap, Jie Wei Hu, Rong Duan, Ka Shing Kenny Kwan
  • Publication number: 20040065720
    Abstract: The invention provides an apparatus and a method for preventing oxidation of an electronic device, such as a semiconductor leadframe, when it is heated. The apparatus comprises an area in which said device is to be heated and inlet means adapted to supply a relatively inert gas to the said area. In particular, the apparatus includes a porous distribution element through which the inert gas is passed from the inlet means to said area, whereby to protect the electronic device in the area from oxidation.
    Type: Application
    Filed: October 8, 2002
    Publication date: April 8, 2004
    Applicant: ASM Technology Singapore Pte Ltd
    Inventors: Yam Mo Wong, Ka Shing Kenny Kwan, Rong Duan, Zhao Ya Rui