Patent ID: 11858070
Assignee: ILLINOIS TOOL WORKS INC.
Field: Machine tools (Mechanical engineering)
Classification: CPC B  H | IPC B

Claim 6:
7. A method of dispensing an assembly material on an electronic substrate, the method comprising:
delivering an electronic substrate to a dispensing system including
a frame,
a dispense station coupled to the frame, the dispense station including a dispensing unit gantry configured to move in x-axis and y-axis directions and at least one dispensing unit coupled to the dispensing unit gantry by a carriage configured to move the at least one dispensing unit in a z-axis direction, the at least one dispensing unit being configured to dispense material on the electronic substrate positioned on a substrate support, the dispense station further including a first non-contact sensor positioned above the electronic substrate on the dispense station, the first non-contact sensor being mounted on the carriage and directed toward the substrate to measure a temperature of the electronic substrate, and
a post-heat station coupled to the frame and configured to receive and heat the electronic substrate, the post-heat station including a second non-contact sensor positioned to measure a temperature of the electronic substrate;

moving the electronic substrate to a dispense position within the dispense station;
performing a dispense operation on the electronic substrate;
measuring a temperature of the electronic substrate in the dispense position with the first non-contact sensor positioned above the electronic substrate to ensure the electronic substrate is at a proper temperature;
moving the electronic substrate to a post-dispense position within a post-heat station; and
measuring a temperature of the electronic substrate in the post-dispense position with a second non-contact sensor positioned above the electronic substrate to ensure that the electronic substrate is at a proper temperature.