Automotive electronics harness connector underfill: conductive silver adhesive case study

Background

An equipment integrator / manufacturer in Automotive electronics needed to underfill on a harness connector using conductive silver adhesive.

Process challenge

Large potting volume where voiding and incomplete fill are hard to balance.

Solution

We recommended Pneumatic Valve + Glue Supply System, with using a servo dispensing module with a programmable speed profile to hold a constant extrusion rate.

Result

Overflow and stringing defects reduced by roughly 60%.
Shot volume 0.4 mL with deviation within ±3%.
Cycle time 0.6 s per dot with no stringing or dripping during continuous running.

Project facts

Industry: Automotive electronics
Workpiece: harness connector
Fluid: conductive silver adhesive
Process: underfill
Recommended lines: Pneumatic Valve, Glue Supply System

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