Experimental Evaluation of a Dual Piezostack-Driven Jetting Dispenser System

摘要

In this paper, a new jetting dispensing system for underfill process is proposed and experimentally evaluated. The suggested system is actuated by two piezostack actuators positioned in parallel and a lever-hinge mechanism is used for amplifying a displacement of the piezostack actuators. After describing the geometric configuration and working principle of the proposed system, both geometric and material information are explained. In order to evaluate the performance of the proposed system experimentally, an experimental apparatus are manufactured. The needle displacement and jetting weight of single dot are experimentally obtained and displayed.