Contrary to supply and demand limitations, the influx of potential marketable products in major electronic sectors along with traditional merchandise has required an increase in quality control.
According to Qualmark Corporation, highly accelerated stress testing or HASS/HALT is one of the most universally applied product control tests worldwide.
In some countries, HASS/HALT is also the mark of product quality excellence. For this reason, it’s vital for every manufacturer and business logistic departments to understand the fundamental testing design.
Differentiating HASS and HALT
Both HASS and HALT involve a series of stress testing that determines the viability of a product under certain set conditions. HASS is basically a test, which accelerates the physical wear and tear of a product under “burn-in” type of testing modes. On the other hand, HALT is a test with the central focus of identifying product flaws under development to shorten revisions and recalls after the product launch.
When integrated properly, a product with a HASS and HALT certification will have undeniable proof of its quality—which is an advantageous position that every business should aim for.
In order to identify product flaws and limitations, HASS and HALT tests include temperature, vibration, and other stimuli. The commonly executed tests include the following:
- Temperature profiling determines the lowest and highest capacity of a product to function in temperature limits.
- Humidity profiling determines the effects of humidity in the form of corrosion, latent shorts, and aging vulnerabilities of a product design.
- Vibration profiling determines the max resistance of a product to shock and vibration levels for mechanical safety and logistics conditions.
For accuracy and reliability purposes, the equipment used for HASS/HALT is also standardized. HASS/HALT testing equipment should have the following metrics:
- Numerical counting mechanisms for various signal outputs
- Electrical noise capabilities for cabling and other components
- Appropriate response time and speed of the equipment
- Chamber or housing size for testing environment
Each of the measures mentioned above will work simultaneously to accelerate the product usability and function. At the same time, each part should also record the result in a cohesive manner for a further analysis and interpretation.