Highly accelerated life testing - Testing with a different purpose

This article describes the technique of HALT - Highly Accelerated Life Testing - and the advantages gained by using the technique. HASS - Highly Accelerated Stress Screening is also introduced and described. The article begins with a discussion of the HALT philosophy and how it differs: from traditional Design Verification Testing (DVT), The advantages of the technique are highlighted. The process of HALT is described in detail, with emphasis on contrasting HALT with DVT and the logic behind the differences. The discussion of the technique includes preparing for the test, fixturing, the sequence of applied stresses and post-test activities. HASS is introduced, including the development of a screen, proof of screen and fixture mapping.