Patents by Inventor Runsheng Mao

Runsheng Mao 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: 11581239
    Abstract: Some implementations of the disclosure are directed to a thermal interface material. In some implementations, a method comprises: applying a solder paste between a surface of a heat generating device and a surface of a heat transferring device to form an assembly; and reflow soldering the assembly to form a solder composite, wherein the solder composite provides a thermal interface between the heat generating device and the heat transferring device, wherein the solder paste comprises: a solder powder; particles having a higher melting temperature than a soldering temperature of the solder paste, wherein the solder paste has a volume ratio of solder powder to high melting temperature particles between 5:1 and 1:1.5; and flux.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: February 14, 2023
    Assignee: INDIUM CORPORATION
    Inventors: Ning-Cheng Lee, Runsheng Mao, Sihai Chen, Elaina Zito, David Bedner
  • Publication number: 20200235033
    Abstract: Some implementations of the disclosure are directed to a thermal interface material. In some implementations, a method comprises: applying a solder paste between a surface of a heat generating device and a surface of a heat transferring device to form an assembly; and reflow soldering the assembly to form a solder composite, wherein the solder composite provides a thermal interface between the heat generating device and the heat transferring device, wherein the solder paste comprises: a solder powder; particles having a higher melting temperature than a soldering temperature of the solder paste, wherein the solder paste has a volume ratio of solder powder to high melting temperature particles between 5:1 and 1:1.5; and flux.
    Type: Application
    Filed: January 31, 2020
    Publication date: July 23, 2020
    Inventors: Ning-Cheng Lee, Runsheng Mao, Sihai Chen, Elaina Zito, David Bedner
  • Publication number: 20200230750
    Abstract: Implementations of the disclosure are directed to a thermal via filling solder paste that exhibits little to no volume loss during reflow. The solder paste may include a solder powder such as tin-silver-copper alloy, a high melting temperature powder (e.g., a copper powder) having a higher melting temperature than the solder powder, and flux. The high melting temperature powder may be configured to have a melting temperature significantly higher than the solder powder. During reflow, the solder powder may melt and wet to the high melting temperature powder, forming intermetallic compounds that keep the via holes filled during and after reflow soldering.
    Type: Application
    Filed: January 18, 2019
    Publication date: July 23, 2020
    Inventors: Ning-Cheng Lee, Runsheng Mao
  • Patent number: 10010981
    Abstract: Materials having increased mobility after heating are disclosed. In one particular exemplary embodiment, the materials may be realized as a material which has reduced apparent molecular weight and/or viscosity and thus increased mobility after a heating process, and which consequently allows material residue to be more easily removed during subsequent cleaning processes. Such a material may be useful in any industrial process which requires heating the material followed by removing material residue.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: July 3, 2018
    Assignee: Indium Corporation
    Inventors: Ning-Cheng Lee, Runsheng Mao
  • Publication number: 20090084469
    Abstract: Materials having increased mobility after heating are disclosed. In one particular exemplary embodiment, the materials may be realized as a material which has reduced apparent molecular weight and/or viscosity and thus increased mobility after a heating process, and which consequently allows material residue to be more easily removed during subsequent cleaning processes. Such a material may be useful in any industrial process which requires heating the material followed by removing material residue.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 2, 2009
    Applicant: Indium Corporation of America
    Inventors: Ning-Cheng Lee, Runsheng Mao