Temperature, Humidity, Bias (THB) testing
Temperature, Humidity, Bias (THB) testing:
Temperature, Humidity, Bias (THB) testing is a reliability test designed to accelerate metal corrosion, particularly that of the metallizations on the die surface of the device.
Aside from temperature and humidity which are enough to promote corrosion of metals in the presence of contaminants, bias is applied to the device to provide the potential differences needed to trigger the corrosion process, as well as to drive mobile contaminants to areas of