Patents by Inventor Philip R. Schmidt

Philip R. Schmidt 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: 6318389
    Abstract: A device for cleaning semiconductor wafers is provided. The device includes a carrier for holding wafers during the cleaning process. The carrier includes a frame with an open top and a plurality of carrier rods extending between opposite ends of the frame. The carrier rods have grooves that receive marginal edge portions of the wafers to retain them against movement in the carrier during cleaning and transportation. The grooves are structured to reduce the amount of contaminants remaining on the wafers after cleaning. The frame may be made substantially entirely of a polymeric material.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: November 20, 2001
    Assignee: MEMC Electronic Materials, Inc.
    Inventors: Philip R. Schmidt, Jon Seilkop, Craig Spohr
  • Patent number: 6210640
    Abstract: A collector and method for collecting samples of liquid from at least one source of liquid for automated analysis of the samples. The collector has at least one receptacle for receiving liquid from the source of liquid and holding a quantity of the liquid for obtaining a sample. Each receptacle has an inlet for delivery of liquid from the respective source of liquid and an open top sized to admit the sample collection device into the receptacle. The collector also has a spillway in fluid communication with the open top of the receptacle for receiving excess liquid spilling over the open top of the receptacle. The collector is constructed so that liquid continuously flows through the collector. A drain of the collector receives liquid from the spillway for draining the liquid from the collector.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: April 3, 2001
    Assignee: MEMC Electronic Materials, Inc.
    Inventors: Kenneth A. Ruth, Philip R. Schmidt