Temperature Humidity Testing
Temperature Humidity Bias (THB)
Temperature humidity bias testing adds electrical bias to the stress to more readily detect electro-corrosion which can occur in the presence of ionic contamination. Applying electrical bias is designed to better simulate the conditions the device faces in its real-life applications. This process further accelerates the various failure modes, therefore predicting design failure in a reduced time frame. Humidity bias testing is normally limited to a maximum of 100 volts and low/negligible power dissipation since self-heating of the device from Joule heating will negate the effects of humidity on the intended process.
For the temperature humidity bias test, standards include, but are not limited to, MIL-STD-202 Method 103 and JESD22-A101. At ORS, we have the capability to conduct a wide range of temperature- humidity-voltage conditions while providing a source of current or voltage to the devices-under-test (DUT). Real-time per-device monitoring is also available during this test and this data can be recorded at any interval (minutes to hours) and provided to the customer at any desired time (hours or days). Because all test setups are custom designed, thermal runaway never occurs. This makes failure mode evaluation, if necessary, simpler and easier.
Oneida Research Services also offers H3TRB Temp Humid Reverse Bias testing (HTRB) and Cycled THB using the latest humidity testing equipment.