NON-CONTACT MICRO DROPLET DISPENSER AND METHOD

摘要

A liquid deposition system comprises a liquid delivery assembly including a dispensing probe having a sidewall including a first end having a liquid port and a second end having a tip, and a flow path opening at the tip and fluidly connected with the liquid port. The system includes a gas injection assembly with a manifold having a gas nozzle, a nozzle opening, and a gas port, the gas nozzle configured to eject a substantially laminar gas stream so that the gas stream travels through a travel path, the tip of the dispensing probe extending into the travel path. The liquid port is fluidly connectable with a liquid source and the gas port is fluidly connectable with a pressurized gas source, so that a liquid micro droplet is formed at the tip. The laminar gas stream separates the micro droplet from the tip and carries it through the travel path.

主权项

1. A liquid deposition system, comprising:
a liquid delivery assembly including a dispensing probe having a sidewall including a first end having a liquid port and a second end having a tip, and a flow path opening at the tip and fluidly connected with the liquid port; a gas injection assembly including a manifold having a gas nozzle, a nozzle opening, and a gas port, the gas nozzle configured to eject a substantially laminar gas stream through the nozzle opening so that the substantially laminar gas stream travels through a travel path, the manifold positioned so that the tip of the dispensing probe extends at least partially into the travel path; and wherein the liquid port is fluidly connectable with a liquid source and the gas port is fluidly connectable with a pressurized gas source, so that at least one micro droplet is formed at the tip when a volume of liquid flows through the flow path, and so that the laminar gas stream separates the at least one micro droplet from the tip and carries the at least one micro droplet through the travel path.