Forum: Reliability & Maintainability Questions and Answers
Posted by: Michael Nixon
Date posted: Wed Feb 9 19:16:19 US/Eastern 2000
Subject: Reliability activities
Is there any information about the reliability activities at different product life cycle stages? I need the whole picture. Thanks in advance. Mike
Posted by: Kang Zhang
Date posted: Wed Feb 9 16:11:35 US/Eastern 2000
Subject: False Alarm Rate Model in BIT circuitry analysis
Does someone have some experience about False Alarm Rate Models in BIT circuitry analysis? Any information is welcome. Thanks. Kang
Posted by: RS Moore (email@example.com )
Date posted: Wed Feb 9 5:04:46 US/Eastern 2000
Subject: Tantalum Capacitors
Does anyone have any experience of whether SMT tantalum capacitors need series resistance to increase the circuit impedance thereby reducing the probability of the capacitor failing short circuit? If so, what is the likely improvement?
I have experienced 2 failure incidents in endurance testing on a PEC where the capacitors are use as decouplers on a 5V and 15V rail. They are 40% voltage derated. Any thoughts? Bob Moore
Posted by: Daniel Mahoney
Date posted: Fri Feb 4 10:19:48 US/Eastern 2000
Subject: Mechanical dormant failure rates
Can anyone shed some insight into the dormant failure rate ratio one should use for mechanical components. The various handbooks suggest numbers of 1 to 10 through 1 to 100 for electronic components, but I would think that mechanical components would be much higher. Any thoughts?
Posted by: David Vermeis (dvv@Ingersoll.com )
Organization:Ingersoll Milling Machine Co.
Date posted: Thu Feb 3 9:18:09 US/Eastern 2000
Subject: RELEX software
I'm looking for opinions about RELEX software. If you are a user please let me know what you think of the program and support. Thank you.