HALT (Highly Accelerated Life Testing) is an accelerated product reliability test method focused on finding design or component weaknesses in a product. Incorporating HALT testing during development helps to shorten the total product development time, and failures can be found and fixed before they become expensive field issues after product launch. During a HALT test, a product is subjected to a series of overstresses to accelerate fatigue in the part of interest. The samples are tested far outside the normal operating conditions. HALT testing supports design verification in a fast and efficient way and can reveal failure mechanisms in a few days instead of weeks or months.
HALT testing is based on stressing the product via a range of different potential parameters. A HALT test is typically based on the following five tests:
MEOST (Multiple Environment Overstress Testing) is used to prove the robustness of the product of interest before it is taken to the market. MEOST is a testing methodology that stresses the product as far as possible beyond the design specifications, but within the known destructive limits (defined or previously determined via HALT testing). A combination of stresses is applied to create interactions that can lead to product failures. MEOST makes use of environmental stresses in combination with dynamic electrical input and output parameters.
MEOST testing is based on exposing the product to a combination of environmental and use-case scenarios that the product would be exposed to during typical use. For MEOST testing, the following guidelines are followed.
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