Forum: Reliability & Maintainability Questions and Answers

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Posted by: Allan Brown (abrown@guigne.com )
Organization:Guigne Technologies Ltd
Date posted: Wed Aug 30 12:27:10 US/Eastern 2000
Subject: Crimp connection reliability testing
Message:
We have developed a stud type crimp connection - basically a washer with a shaped arm to which we crimp a wire. The wire size is 22awg.
We wish to do a pull test and a temp cycling test. What would be the appropriate parameters to base our tests on? thanks

Replies:
Reliability Testing
Jack Farrell Tue Sep 26 15:41:36 US/Eastern 2000

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Posted by: CAR
Date posted: Tue Aug 29 10:31:44 US/Eastern 2000
Subject: Semiconductor Wafers / Dies
Message:
Could anybody preovice guidance on how to claculate generic failure rates for semiconductor wafers and dies.
Thanks in advance

Replies:
Semiconductor Wafer/Die Failure Rates
Bruce Dudley Wed Sep 13 11:58:46 US/Eastern 2000

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Posted by: Dave Wright (dwwright@tasc.com )
Date posted: Thu Aug 24 19:16:14 US/Eastern 2000
Subject: Predictive Failure Analysis on Small Sample Sizes
Message:
I am looking for a COTS tool that is capable of predictive failure analysis on small sample sizes. Can anyone make a sugestion on where to go or who to talk to.

Replies:
Failure Prediction Tools
Jack Farrell Wed Aug 30 8:07:28 US/Eastern 2000

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Posted by: Ray V. Steele (rsteele@ebaratech.com )
Organization:Ebara Technologies, Inc.
Date posted: Thu Aug 24 16:47:30 US/Eastern 2000
Subject: Equipment Reliability Database
Message:
I have been asked to develop a database to monitor many pieces of equipment at our facility. These would include a number of air conditioners, compressors, cnc machinery, etc. All of this equipment has been online for a number of years. What suggestions might anyone have with regard to types of useful data to collect? Can MTBF and MTTR be calculated on this equipment? If not, what would be useful? Thanks in advance for your help - Ray

Replies: (list all replies)
Data Collection
Robert Arno Tue Aug 29 9:14:59 US/Eastern 2000
Re: Equipment Reliability Database
Marina Karyagina Wed Sep 13 22:56:22 US/Eastern 2000

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Posted by: Ian (ianc49@hotmail.com )
Date posted: Wed Aug 23 11:15:37 US/Eastern 2000
Subject: Arrenhius-Lawson Equation
Message:
I have to date came across 2 different versions of the Arrenhius-Lawson equation, where one uses an acceleration humidity factor of 0.00044 and the other 5000 (both believed to default values).
Could anybody provide me with a definitive Arrenhius-Lawson Equation and the correct default acceleration humidity factor or a source of reference for both. Thanks in advance.

Replies:
Lawson Humidity Acceleration Model
Jack Farrell Wed Aug 23 15:30:21 US/Eastern 2000

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