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| Date: | Wed, 8 Jun 2011 17:03:57 -0400 |
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Long enough to screen out your infant motility failure.
jk
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Rivera, Raye
Sent: Wednesday, June 08, 2011 5:00 PM
To: [log in to unmask]
Subject: [TN] How to determine Burn In duration?
Hello Technetters,
Does anyone know of a good reference on how to reasonably set the duration for burn in of products? I haven't been able to locate much information on this topic.
Our products are primarily fiber optic telecom equipment. We burn them in at 50 degrees C for 48 hours. This procedure was set up before my time and I do not know how it was arrived at.
Lacking any better approach, I would probably put 10 or so units into a long term burn in experiment and measure time to failure. Then, attempt to fit to a Weibull distribution and see if I can get a theoretical model for what percentage will fail after X hours of burn in. I'm not sure if this is reasonable because the sample is small and the time to failure may be quite long.
Does anyone know of a better approach? Thanks all!
Best regards,
Raye Rivera
QA Manager * Canoga Perkins
20600 Prairie Street * Chatsworth * CA 91311-6008
818-678-3872 * [log in to unmask]
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