Methods for continuously moving a fluid dispenser while dispensing amounts of a fluid material

A method for jetting droplets of a fluid material at a plurality of dispense locations on a substrate, the method comprising:

• acquiring an image of the substrate with reference fiducial marks on the substrate before jetting the droplets of the fluid material;
• locating fiducial marks on the substrate that are visible in the image to correct for substrate misalignment;
• continuously moving a dispenser through a constant motion trajectory connecting the plurality of dispense locations on the substrate;
• monitoring electrical output signals generated by one or more of encoders of the dispenser as the dispenser is continuously moved through the constant motion trajectory;
• triggering, based on the electrical output signals generated by the one or more of encoders, the dispenser at each of the plurality of dispense locations;
• jetting droplets of the fluid material at the plurality of dispense locations while continuously moving the dispenser through the constant motion trajectory;
• measuring spatial coordinates of each droplet of the fluid material on the substrate;
• comparing the spatial coordinates for each droplet of the fluid material to expected landing coordinates for each droplet of the fluid material to generate a spatial error for each droplet of the fluid material;
• correcting, based upon the comparison, at least one of the plurality of dispense locations to reduce at least one of the plurality of spatial errors;
• and
• generating an updated constant motion trajectory based on the at least one corrected dispense location.