“…Dispensing is a significant technology in the microelectronics packaging industry [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ]. Piezo jet dispensers have the advantages of small size, high resolution, high frequency, and low-energy consumption, so they have been widely applied [ 9 , 10 , 11 , 12 ].…”