Jet Dispensing – An Overview

Fig. 1 The Principle of Jet-Dispensing depicted in three steps [Lu et al., 2015, Smart Materials and Structures, 24, 10]

Modern Jet valves can achieve dispensing speeds of up to 1200 Hz in continuous operation. Dispensing volumes of up to 0.5 nl can be achieved with spot diameters of up to 0.2 mm [1]. This significantly reduces process times compared to conventional needle dispensing.

The non-contact adhesive application can also reduce accompanying process steps such as inspection of substrate heights or Z-axis movements, which has a positive influence on the process time. In addition, dispensing tasks can be realisedon sensitive components as there is no risk of a collision with a dispensing needle.