Introduction to Temperature, Humidity, Bias (THB) Testing
THB testing is one of the most rigorous reliability tests used in the electronics and telecommunication industries, where components are highly subjected to aggressive environments. The test subjecting encompasses exposure to high temperatures, increased moisture levels, and applied voltage through electrical bias to simulate accelerated aging. Manufacturers can predict their long-term performance and failure rates in real operating conditions by testing how materials behave under these combined stresses.
Instrumentation
It is carried out in a THB chamber. Controls on temperature, humidity, and applied voltage are precise. Samples are put inside the chamber and samples are tested at conditions such as 85°C/85% relative humidity for a specified number of hours over thousands or hundreds. Voltage is applied to simulate a real operational environment. Material property degradation or electrical failures throughout the test are checked.
| Service Name | Remarks |
|---|
| THB Testing | Expert Consultation |
Strengths
Testing under THB conditions provides close-to-reality simulation of combined stresses electronic components might experience in such harsh environments, for example, outdoor electronics, automotive systems, and industrial equipment. THB tests should disclose possible failure modes that could start corrosion, insulation breakdown, material degradation, etc. Manufacturers can improve reliability and durability. The results obtained are critical to performance standards in the industry.
Limitations
Although THB testing is quite efficient in simulating environmental stresses, probably every condition of the real world cannot be recreated. For instance, some factors such as mechanical vibrations, UV exposure, and extra thermal cycling will not be considered within a routine THB test. The duration for an accelerated test may also fail to represent the precise life of service by a component at times.
Related Techniques to Temperature, Humidity, Bias (THB) Testing
Related testing methodologies include Highly Accelerated Life Testing (HALT) and Highly Accelerated Stress Testing (HAST), which apply similar stresses to the components but mainly to identify weak points and what it takes for components to transcend the limits.
Related
FAQ's
Where can I get the thb tested?
You can share your thb testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific thb test to various testing techniques.
How much do I need to pay for the thb test?
Please contact us for a detailed quote for your thb testing needs. Cost incurred to carry out different thb testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.
How many samples are required for thb?
The required number of samples or specimens should comply with the procedure given in the thb standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
How much discount can I get on the thb test?
MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.
How many days will it take to complete the thb test?
The turnaround time for thb test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
Where can I get the thb tested?
You can share your thb testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific thb test to various testing techniques.
