Device and method for despensing a fluid onto a substrate moving relative to the device

摘要

An apparatus for dispensing fluid includes a base member having a feed channel and a slot nozzle having first and second spaced apart members. A slot-shaped outlet channel is in fluid communication with the feed channel and is defined between the first and second spaced apart members. A slot-shaped outlet opening is in fluid communication with the slot-shaped outlet channel and has a width defined between the first and second spaced apart members. A valve is coupled with the base member and selectively interrupts and releases the flow of fluid through the slot-shaped outlet opening. An adjustment device infinitely adjusts the position of the first member relative to the position of the second member to change the width of the slot-shaped outlet opening. A method for dispensing fluid onto a substrate includes directing the fluid through the slot-shaped outlet channel while continuously increasing the pressure of the fluid.