Evaluating clad heat spreaders for IGBT modules

What to compare

For a copper-clad aluminum heat spreader, compare geometry, mass, thermal performance and interface condition with the current part. Assess the assembled module rather than inferring its performance from the conductivity of one constituent material.

What to test

Define the operating load, allowable junction temperature, cooling conditions and thermal-cycling requirements. Check dimensional stability and joint integrity after the agreed test sequence.

Send the drawing, material stack, operating conditions and thermal target. Confirm Raytron’s product scope and available test data for the proposed part before specifying it.