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HALT - Cold Step Stress
Cold step stress consists of decrementing the ambient temperature inside the HALT chamber in approximately 10°C steps starting from an ambient temperature of approximately 10°C. The unit is functionally tested at each step before moving on.
Brief Cold Step Stress Summary
The Unit Under Test (UUT) is positioned inside the HALT chamber
where it will receive uniform airflow. The test begins at approximately
room temperature with a minimum dwell time of ~15 minutes. Testing
is conducted on the product to ensure full functionality is attained.
After the dwell period has expired the temperature is stepped down
in ~10°C decrements and the dwell time repeated.