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OwnerBill J. Peck, Eric M. Leproust +1inventors
InventorsBill J. Peck, Eric M. Leproust, Lawrence J. DaQuino
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Droplet dispensing apparatus and methods are disclosed for reducing or eliminating deleterious effects caused by pressure transients on the droplet dispensing action of a droplet dispensing device. The droplet dispensing device usually comprises a plurality of nozzles. In the method fluid reagents are passed through a porous medium and into the droplet dispensing device. The porous medium is usually adjacent an inlet into the droplet dispensing device. In one embodiment the porous medium is coated with a desiccant material. In another embodiment the porous medium is in combination with a second porous medium, which is coated with a scavenger material.
A method for reducing or eliminating deleterious effects caused by pressure transients on the droplet dispensing action of a droplet dispensing device used in the fabrication of an array of chemical compounds on a surface of a substrate, said dispensing device comprising a plurality of nozzles, said method comprising passing one or more fluid reagents for the fabrication of said array through a non-flexible porous medium and into said droplet dispensing device.
An apparatus for introducing a fluid reagent into an inlet of a droplet dispensing device used in the fabrication of an array of chemical compounds on a surface of a substrate, said droplet dispensing device comprising a plurality of nozzles, said apparatus comprising:
A method for creating a negative backpressure at the nozzles of a droplet dispensing device comprising a plurality of fluid reagent inlets, said method comprising having in fluid communication with each fluid reagent inlet a volume of a porous medium and controlling the flow of fluid reagents through said porous medium so that said fluid reagent occupies less than all of the volume of said porous medium to provide a negative backpressure for said droplet dispensing device.
Dependencies are inferred from the claim text.