Sounds like an interesting approach, but it sounds like it will only uncover those failure modes that are related to the product's environment. What about line voltage fluctuations, surges, etc., or for power supplies things like load cycling, load transients, etc. Does anyone know if there are established HALT procedures that include these sorts of things? Thanks.
Regards, Jim Eichner Statpower Technologies Corporation jeich...@statpower.com http://www.statpower.com The opinions expressed are those of my invisible friend, who really exists. Honest. > -----Original Message----- > From: MVA 850SS [SMTP:mva85...@aol.com] > Sent: Monday, January 19, 1998 5:45 PM > To: r...@itsqs.com; emc-p...@ieee.org > Subject: Re: HALT testing > > HALT, Highly Accelerated Life Testing is a test-to-failure approach to > determine weak designs. You don't ever "pass" HALT, you just reach a > point of > diminishing returns from a design cost/improvement ratio. There are > various > parameters that change such as vibration, temperature and humidity. > All those > change in a predetermined (or not) pseudo-random fashion. It is an > excellent > approach to determine quickly what the likely warranty returns will be > or what > the long term failures will be!
