Patents by Inventor Kim Pong Daniel Chir

Kim Pong Daniel Chir 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 of forming atomic force microscope tips
    Patent number: 7247248
    Abstract: The invention relates to a method for forming silicon atomic force microscope tips. The method includes the steps of depositing a masking layer onto a first layer of doped silicon so that some square or rectangular areas of the first layer of doped silicon are not covered by the masking layer, etching pyramidal apertures in the first layer of doped silicon, removing the masking layer, depositing a second layer of doped silicon onto the first layer of doped silicon, the second layer of doped silicon being oppositely doped to the first layer of doped silicon and etching away the first layer of doped silicon. Further steps may be added to form the atomic force microscope tips at the end of cantilevers.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: July 24, 2007
    Assignee: Sensfab Pte Ltd
    Inventors: Lay Har Angeline Tee, Kim Pong Daniel Chir, Kitt-Wai Kok, Kathirgamasundaram Sooriakumar, Bryan Keith Patmon