Thermal Characterisation Test Bench
About
Thermal Characterisation Test Bench CATHELINN - This test bench is dedicated to the thermal characterization of power devices based on the use of thermo-sensitive electrical parameters.
Description
The system is based on the Phase 12B thermal analyser from Analysis Tech company (https://analysistech.com/semiconductor-thermal-tester/phase-12b-thermal-analyzer/). It also includes a furnace for the calibration of the thermo-sensitive electrical parameter, a cold plate and a cooler.
This system allows measuring:
– thermal resistance of power module,
– thermal coupling between devices,
– thermal impedance,
– structure function,
– thermal response after power pulse,
…
It also allows making power cycling tests by measuring the evolution of the thermal impedance under high temperature swings. In the future, another feature will be available: we will add the power cycler from this company (https://analysistech.com/semiconductor-thermal-tester/phase-12-power-cycler/). The latter will allow measuring simultaneously the aging of 8 power devices.
Technical specifications:
Heating current: 20-100 A,
Measurement current: 50 mA max,
8 measurement channels.
Case study:
Different studies can be done with this setup:
– analysis of defects in power modules, for example die attach,
– validate thermal models of power modules, estimate thermal coupling inside the system,
– estimation of thermal contact resistances,
– characterize efficiency of new cooling systems.