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Placing a highly viscous liquid drop on a solid surface

  1. Sep 13, 2016 #1
    Hi I'd like to ask how you would put a droplet at high viscosity (say 2.5 million times more viscous than water) on a solid surface? The droplet would have to be small (volume less than 10uL, r<1.34mm)..
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  3. Sep 14, 2016 #2


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  4. Sep 18, 2016 #3


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    According to this you are talking about something like caulking.....


    Quite hard to control the volume or mass I suspect. perhaps look at some sort of screen printing process? Squeegee the material through a perforated membrane?

    Perhaps look at how they fix silicon chips/die? Think they use small balls of solder paste?
  5. Sep 20, 2016 #4
    sounds like the soldering paste used in SMD circuits, dispensed in Little doplets.
    What about a siringe (or a soldering paste dispenser)?
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