Consumer electronics acoustic component underfill: conductive silver adhesive case study

Background

An equipment integrator / manufacturer in Consumer electronics needed to underfill on a acoustic component using conductive silver adhesive.

Process challenge

Micro-litre volumes with expensive material and no waste allowed.

Solution

We recommended Screw Valve + Dispensing Valve, with replacing time-pressure control with a positive-displacement screw valve to meter by volume.

Result

• Overflow and stringing defects reduced by roughly 60%.
• Shot volume 0.02 mL with deviation within ±3%.
• Cycle time 0.3 s per dot with no stringing or dripping during continuous running.

Project facts

• Industry: Consumer electronics
• Workpiece: acoustic component
• Fluid: conductive silver adhesive
• Process: underfill
• Recommended lines: Screw Valve, Dispensing Valve