| 主权项 |
1. A method of calibrating a dispenser of the type having a material dispensing unit that is configured to dispense material on a substrate, the method comprising:
providing a weigh scale having a plate configured to receive material dispensed on the plate; dispensing one or more patterns of material on the plate; weighing the amount of material dispensed on the plate; comparing the weighed amount of material to a designated amount of material, wherein dispensing one or more patterns of material replicates at least a portion of patterns of material dispensed on the substrate during a dispensing operation; and displaying the weight of the pattern dispensed to a user using a user interface device having a display coupled to a dispenser controller, wherein during setup, an operator specifies the following parameters: a speed of a dispenser gantry; a number of dispensers; a z-axis height of each dispenser; for auger-type dispensers, a rotation of an auger screw in degrees per millimeter, or for jetter-type dispensers, a jetting rate in dots per millimeter; a predetermined tolerance of the weight of the pattern dispensed; a measure of every n boards or every n minutes; and when to perform a needle cleaning operation, and wherein one or more icons are provided on the display to assist the operator. |
