Passivation Layer Shear

Nordson DAGE bondtesters provide passivation layer shear tests (up to 250 grams) as an alternative to cavity shear and traditional ball shear testing.

The passivation layer shear test methodology is applicable when the passivation layer is too thick for a cavity shear test to be effective and overcomes passivation layer interference.  The Nordson DAGE bondtester removes the passivation layer using a software controlled loadtool technique allowing the shear tool to engage the ball bond and apply the maximum load.  A software routine combined with a specialized design loadtool cuts away the passivation and then allows for intelligent loadtool landing, stepback and shear.