Specific Material Patents (Class 400/124.32)
  • Patent number: 7749448
    Abstract: Fluidic conduits, which can be used in microarraying systems, dip pen nanolithography systems, fluidic circuits, and microfluidic systems, are disclosed that use channel spring probes that include at least one capillary channel. Formed from spring beams (e.g., stressy metal beams) that curve away from the substrate when released, channels can either be integrated into the spring beams or formed on the spring beams. Capillary forces produced by the narrow channels allow liquid to be gathered, held, and dispensed by the channel spring probes. Because the channel spring beams can be produced using conventional semiconductor processes, significant design flexibility and cost efficiencies can be achieved.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: July 6, 2010
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Thomas Hantschel, David K. Fork, Eugene M. Chow, Dirk De Bruyker, Michel A. Rosa
  • Patent number: 7241420
    Abstract: Fluidic conduits, which can be used in microarraying systems, dip pen nanolithography systems, fluidic circuits, and microfluidic systems, are disclosed that use channel spring probes that include at least one capillary channel. Formed from spring beams (e.g., stressy metal beams) that curve away from the substrate when released, channels can either be integrated into the spring beams or formed on the spring beams. Capillary forces produced by the narrow channels allow liquid to be gathered, held, and dispensed by the channel spring probes. Because the channel spring beams can be produced using conventional semiconductor processes, significant design flexibility and cost efficiencies can be achieved.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: July 10, 2007
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Thomas Hantschel, David K. Fork, Eugene M. Chow, Dirk De Bruyker, Michel A. Rosa