Electronics Forum | Wed Dec 06 13:18:37 EST 2006 | Bob B
Attention Alpha users: I just read Alpha is going to close the US paste factories and move them to Mexico. Be on the lookout for quality issues when they do. I am sorry to see them go in this direction.
Electronics Forum | Wed Dec 20 07:54:13 EST 2006 | davef
We pipe a nonfunctional witness mark on every board. We inspect the witness mark. Ours consists of six pairs of dots arranged in a five-pointed star pattern. Again, consider paying attention to the cause of the problem. Your machine is NOT operat
Electronics Forum | Thu Jan 18 12:07:52 EST 2007 | tonang
How to problem solved about production reject IC short? Please advice us about setting screen mask printer, stering solder paste, profile reflow etc Thank you for your attention and cooperation Best regard, Tonang
Electronics Forum | Sun Mar 25 13:39:30 EDT 2007 | oldsmtdude
Read http://www.azom.com/details.asp?ArticleID=1208 And pay attention to CJC or cold junction compensation. Normally the CJC isn't much but with the accuracy you demand you had better plan for it.
Electronics Forum | Wed May 16 09:25:39 EDT 2007 | d0min0
Hi Piotr, is your Teknek 'armed' with de-ionisation tool?, where exactly did you measure the discharge? we have one Teknek offline but 2 new waiting to get inline ;) wonder if we need some special attention for them
Electronics Forum | Thu Jun 14 16:31:38 EDT 2007 | aj
I concur Chunks ! A simple test to carry out is the Z0 height check across the board, with particular attention to the area of the board you are having problems. You should at least see the nozzle touch the board , ideally press the board slightly.
Electronics Forum | Thu Apr 17 20:29:35 EDT 2008 | lellis
Follow the traveller as per a engineer there shouldnt be a issue. If the engineer isnt correct the operator isnt to blame, unless they are not following the traveler or paying attention to parameters. Is the messenger to blame, who sent the message?
Electronics Forum | Mon Jul 07 15:42:58 EDT 2008 | josh_brubaker
That's funny you say that, we also have a wall of shame where we hang the pictures. Sometimes it's amazing what people can do when they aren't paying attention. We don't post pictures of the operators though.
Electronics Forum | Thu Feb 05 01:53:47 EST 2009 | thirdeyeny
I am a skilled smt operator that pays close attention to detail with my experience in the electronic field for the passed 10 years i proved to be an asset to all companies that i have worked for in providing quality work and ensuring on time delivery
Electronics Forum | Thu Apr 23 15:46:08 EDT 2009 | ccross
During initial profiling we shoot for 15% or less voiding on our BGAs. During production runs we consider voids under 15% to be ok. Voiding between 15%-25% we string tag and pay more attention to during test. Over 25% we consider a reject.
.gif)
