Patent ID: 11904337
Assignee: ILLINOIS TOOL WORKS INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  H | IPC B  H

Claim 0:
1. A dispensing system for dispensing viscous material on an electronic substrate, the dispensing system comprising:
a frame;
a support coupled to the frame, the support being configured to receive and support an electronic substrate during a dispense operation;
a dispensing unit configured to dispense viscous material including solder paste, the dispensing unit having a nozzle;
a gantry assembly coupled to the frame, the gantry assembly including a gantry configured to support the dispensing unit and to move the dispensing unit in x-axis, y-axis and z-axis directions and a tilt and rotate subassembly configured to tilt and rotate the dispensing unit; and
a controller configured to control dispensing unit and the gantry assembly to perform a dispense operation on the electronic substrate, the controller being configured to control the dispensing unit to dispense material from the nozzle of the dispensing unit at a flow rate configured to deposit a desired amount or density of material on the electronic substrate along a three-dimensional path,
wherein the controller further is configured to move the nozzle of the dispensing unit at a constant speed with respect to a component mounted on the electronic substrate, the controller being configured to move the nozzle to achieve a constant speed of 1000 mm/second, and
wherein the controller further is configured to dispense material from the nozzle of the dispensing unit at a flow rate configured to deposit a desired amount of density of material on the electronic substrate, the controller being configured to dispense material from the nozzle to achieve a flow rate of 2000 mg/second.