Patents by Inventor Dean Bettcher

Dean Bettcher 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: 6128830
    Abstract: Disclosed herein is an apparatus and method for drying solid articles such as semiconductor wafers. In one embodiment, the dryer comprises a process tank and a drying fluid supply system. The process tank includes a plurality spray nozzles to spray a non-flammable drying fluid to wet surfaces of the article for drying without the necessity of heat or other external means. The drying fluid comprises a non-flammable, environmentally compatible, and a non-hazardous fluid including a drying agent of (hydrofluoroether) HFE and a surfactant of isopropyl alcohol (IPA). Even without the benefit of heating, little if any solution or static charge remains after drying. The drying apparatus includes a drying fluid supply system for providing the drying fluid to the plurality of spray nozzles.
    Type: Grant
    Filed: May 15, 1999
    Date of Patent: October 10, 2000
    Assignees: Dean Bettcher, Christopher Kubinski
    Inventors: Dean Bettcher, Christopher Kubinski
  • Patent number: 4841645
    Abstract: A vapor dryer system in which products to be dried are positioned in a tank and immersed in a hot vapor cloud and saturated with hot vapor, which removes water from the surface of the product as the vapor condenses on the surface. The condensate is collected and diverted to preserve the purity of the solvent reservoir. The vapor is formed from a liquid reservoir which is heated by heat transducer means disposed remotely from the tank to minimize the risk of igniting the vapor.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: June 27, 1989
    Assignee: Micro Contamination Components Industries
    Inventors: H. Dean Bettcher, Gary D. Bettcher, Galen D. Bettcher, Ralph D. Bettcher