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Forum: Reliability & Maintainability Questions and Answers

Topic: Reliability & Maintainability Questions and Answers

Topic Posted by: Reliability & Maintainability Forum (src_forum@alionscience.com )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998

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Original Message:

Posted by: Johnson Wood (wuxiangping@huawei.com )
Organization:Huawei Tech.Ltd.,Co.
Date posted: Tue Aug 14 3:55:01 US/Eastern 2001
Subject: Weibull
Message:
The circuit boards burn-in datas are recorded per month, judy as follows: Date Sample Size #Failed 2001-2 1494 34 2001-4 3494 144 2001-5 25902 702 2001-6 20082 682 Which method of Weibull is suitable for this type of data?


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Subject: Weibull
Reply Posted by: Johnson Wood (wuxiangping@huawei.com )
Date Posted: Tue Aug 14 21:54:16 US/Eastern 2001
Message:
All of our circuit boards will experience a 55 C, 24-hours burn-in just after assembly and production.In the process of burn-in, some faults occur. I want to use weibull technology to predict the infant mortality reliability of life of the boards base on these datas. I bought the New Weibull Handbook from RAC, and I have the SuperSMITH Weibull tool also. Any advice will be welcome. Thanks.


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