Electronics Forum: testing failures (Page 1 of 43)

Relay failures

Electronics Forum | Tue Jul 29 14:25:20 EDT 2014 | kenkay

We have been struggling for a while with some through hole sealed mechanical relays that fail at test after they have been sitting a while. They will initially pass test, but seem to fail if they sit for a few days. We made sure our wave process was

Ionograph testing

Electronics Forum | Tue Aug 03 15:23:56 EDT 2004 | tberkey

thanks for your response. I have a couple of reasons for evaluating this. 1) We recently purchased an ionograph to replace an outdate Omega meter. Correlation is required and in discussing this with several people, most wondered why we checked if we

West coast testing labs?

Electronics Forum | Fri Mar 23 21:36:02 EST 2001 | CAL

If you do not have any luck finding a west coast lab, but need services I am sure we can help. The only problem is we are on the east coast. Many moons ago empf was on the west coast (China Lake) but moved eastward. We are in Philadelphia, PA. (ski

Re: testing after SMt assembly

Electronics Forum | Wed Jul 21 01:52:40 EDT 1999 | Scott McKee

| Dear all | Please help me to know what kind of tests usually done after SMT Pick & place and reflow oven. | Our appliocation is Mainly fabrication of mother boards. | Thanks | In theory, ICT is the classical answer (In-Circuit Test). In practic

ICT testing to improve yields

Electronics Forum | Mon Aug 27 08:52:57 EDT 2012 | rgduval

Reese, We would agree about the value of an ICT system, in a general manufacturing environment. However, a couple of notes apply: 1. ICT isn't a catch-all, either, and should be used to verify the process, not validate it. Quality should be buil

Re: testing after SMt assembly

Electronics Forum | Wed Jul 21 10:11:57 EDT 1999 | Mark Quealy

| | Dear all | | Please help me to know what kind of tests usually done after SMT Pick & place and reflow oven. | | Our appliocation is Mainly fabrication of mother boards. | | Thanks | | | In theory, ICT is the classical answer (In-Circuit Test).

Re: testing after SMt assembly

Electronics Forum | Fri Jul 23 10:16:16 EDT 1999 | Boca

| | | Dear all | | | Please help me to know what kind of tests usually done after SMT Pick & place and reflow oven. | | | Our appliocation is Mainly fabrication of mother boards. | | | Thanks | | | | | In theory, ICT is the classical answer (In-Ci

ICT testing to improve yields

Electronics Forum | Mon Aug 27 08:58:24 EDT 2012 | rway

Reese, > > We would agree about the value of an > ICT system, in a general manufacturing > environment. However, a couple of notes > apply: > > 1. ICT isn't a catch-all, either, and > should be used to verify the process, not > validate it.

Accelerated testing to Service life conversion

Electronics Forum | Tue Aug 07 20:43:47 EDT 2001 | davef

First, we know that MIL types are wont to use charts like that. Give �em Weibull distribution tables and then they�ll be happy, happy. A good book is Nelson �Accelerated Testing: Statistical Models �� Wiley Second, we don�t use that very nice stu

ROSE testing for no-clean flux soldering assemblies

Electronics Forum | Mon Aug 19 13:32:54 EDT 2019 | aqueous

ROSE testing a post-reflow assembly which has been reflowed using no-clean flux may not yield information that is helpful. No-clean flux technology works by encapsulating the flux's activators and other chemical constitutes that would be harmful if l

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