End-to-end product lifecycle testing to help you evaluate device performance over the full length of the product lifespan.
Manufacturers are under pressure to deliver high-quality and mature products to market, which are free of early generation failures. Early generation failures or unknown latent failure points negatively impact a manufacturer’s bottom-line and result in costly recalls, warranty claims, and lost consumer confidence.
Accelerated resistance testing helps manufacturers prevent these failures by providing a full picture of a product’s reliability over its lifetime. Product lifespans and latent failure points may take months or years to identify in regular use, but through accelerated stress testing, manufacturers can shorten this process to hours or days.
We provide accelerated resistance testing for manufacturers in any level of their product lifecycle. A typical accelerated stress testing plan consists of: temperature extremes, temperature cycles, random vibration, power margining, and power cycling. With laboratories on the east and west coast equipped with Qualmark Typhoon chambers, we can perform both HALT and HASS at a location convenient for you.
What is Accelerated Resistance Testing?
Accelerated stress testing consists of two major testing classifications: HALT (Highly Accelerated Life Testing) and HASS (Highly Accelerated Stress Screening). These two methodologies work in tandem to identify active and latent failure points that may exist in a given product by subjecting the product to incremental dynamic environmental and climatic conditions to induce failure in various components and parts. HALT is always performed before HASS to provide a baseline for the collected HASS data.
What is HALT (Highly Accelerated Life Testing)?
HALT is a testing methodology that subjects a product to an extremely rapid aging process, allowing manufacturers to observe latent failure points that present themselves late in the product lifespan. During the testing process, parts are repaired until product functionality cannot be recovered (test-to-failure). This allows manufacturers to determine latent failure points that exist within their product.
The data extrapolated from accelerated stress testing allows manufacturers to effectively estimate product lifespan and improve current designs to prevent early generation failures. This data is also used as a baseline for HASS (Highly Accelerated Stress Screening). \
It is recommended that HALT testing is performed at the beginning of a product lifecycle, during the design phase to identify product weaknesses. We can help you adjust your product to eliminate weaknesses and improve your early generation product.
What is HASS (Highly Accelerated Stress Screening)?
A HASS is performed after the HALT evaluation to verify production techniques and models according to the failure points identified by HALT testing. A HASS enables manufacturers to determine if their production process is delivering the intended product and reliability by analyzing the data collected during the HALT to compare a production model to the HALT evaluated product.
We recommend HASS testing is performed immediately before the production phase, which allows production techniques to be verified for effectiveness. We can determine failure points and help you evaluate how to change your production techniques to deliver the intended product reliability.