Patents by Inventor An-Ti Chai, deceased

An-Ti Chai, deceased 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: 6108932
    Abstract: A method for thermocapillary drying of substrates includes the step of elevating a submerged substrate away from a rinsing liquid. Such movement of the substrate forms a meniscus on opposite sides of the substrate. The curved raised portion of the meniscus at each side of the substrate is gently heated in such a way as to induce thermocapillary flows, which cause the rinsing fluid to flow away from the substrate so that the withdrawing substrate may be pulled out dry and clean. Heating may be accomplished by directing a warm gas onto the meniscus or by heating the meniscus with rays from a radiation/light source. Apparatus is also provided for performing the various method steps.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: August 29, 2000
    Assignee: Steag MicroTech GmbH
    Inventor: An-Ti Chai, deceased