Leveraging Highly Accelerated Life Testing for Aerospace Products
Aerospace products achieve unmatched reliability through Highly Accelerated Life Testing (HALT) in our lab, minimizing failures.
Category: HALT & HASS
Medical Device Industry: Producing Reliable Products
In the fast-evolving medical device industry, the pathway to market success is marked by stringent standards. Delserro Engineering Solutions (DES) plays a pivotal role in this journey, offering expert testing services for both medical devices and their packaging. Recognizing that each product—from intricate surgical instruments to complex diagnostic machinery—requires rigorous scrutiny, DES employs cutting-edge environmental, …
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HALT Testing: When Should You Perform It?
Highly Accelerated Life Testing, or HALT, is a technique used in the industry to speed up the design and test phases of product development, as well as limit the number of field failures and thus reduce warranty costs incurred by the manufacturer. HALT Testing can be a competitive advantage for companies when performed correctly and …
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How to Implement a HASS Program
This article is a general outline on how to implement a HASS program after a successful HALT has been performed and corrective actions have been completed for any weaknesses found during HALT. For more information about HASS, please read our blog, What is HASS Testing? For more information about HALT, please read our blogs What …
What is HASS Testing?
HASS is an acronym for Highly Accelerated Stress Screening. HASS is performed during manufacturing on production products or components. It is a screening method used to expose manufacturing defects that would cause a failure in normal field environments including shipping, storage and use.
A Primer for HAST: Highly Accelerated Stress Testing
The HAST acronym stands for Highly Accelerated Temperature/Humidity Stress Test and is sometimes shortened to Highly Accelerated Stress Testing. HAST makes use of accelerated temperature and humidity conditions to precipitate failures which could be caused by long term exposure to humid environments. HAST has been developed to replace Temperature-Humidity-Bias (THB) testing which has typical conditions …
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Circuit Board HALT Testing Case Study
Customer Goal A customer approached DES looking to perform Highly Accelerated Life Testing (HALT) on a new circuit board design. DES and the customer agreed to test the circuit boards using DES’s traditional HALT test procedure which calls for hot/cold temperature steps followed by rapid temperature ramping, vibration steps and combined temperature and vibration stresses. HALT …
Rapid HALT – A Cost Effective Alternative to HALT
Rapid Highly Accelerated Life Testing or Rapid HALT is a reliability test method that is used to expose product weaknesses. A Rapid HALT procedure is a modification of a Classical HALT procedure. For more information about Classical HALT procedures, refer to the following blog articles: What is HALT Highly Accelerated Life Testing and why perform …
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Cooling Fan Reliability Testing Case Study
Customer Challenge A customer approached DES looking to find an accelerated test solution for an AC powered cooling fan used in one of their products. The product had been established in the marketplace and the company was now looking for ways to reduce cost by looking at different cooling fan suppliers. Most fans, however, have …
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What Kind Of Failures Occur During HALT?
Product failures in HALT testing are defined as either the cessation of any functions or an out-of-specification condition for any performance characteristic. When a failure occurs, it is documented in DES’s HALT log. The exact time and test condition when each failure occurred is noted. If the product fails to operate, the temperature or vibration …