Electronics Forum | Tue Feb 12 16:10:21 EST 2002 | Phil the Quality Guy
Six Sigma has been invaluable here at my contract manufacturing group. We have brought out defect rate from a monthly average of 32% to 3 or less percent. Essentially, our inspectors 100% inspect every assembly in final inspection. I constructed a
Electronics Forum | Mon Jan 04 11:59:41 EST 1999 | Steve Evers
| Give me your opinions and experiences of SelectX, selective debridging system in the Vitronics Soltec wave soldering machines. | Opinion and (food for thought)?: First let me say that I am not familiar with SelectX. In the past, manufacturing e
Electronics Forum | Wed Oct 24 18:10:56 EDT 2001 | davef
We attended several presentations on AOI machines at a recent SMTA meeting. The presenters gave a section about process verification. They bantied about numbers. [I want to say 350 DPMO, but we glaze over when it gets to that stuff] So, you might
Electronics Forum | Wed Jun 26 08:54:53 EDT 2002 | davef
it has a lousy gage. * Solderability testing machines from different suppliers produce dissimilar results. * Tests don�t well represent in-use. For instance, how does one test the solderability of a BGA? [Ooo, ooo. I know the answer. => For BGA and
Electronics Forum | Mon Aug 19 20:44:01 EDT 2002 | davef
George: There is no industry standard for the calculation of process capability. Although, you should be aware of IPC-9850, Surface Mount Placement Equipment Characterization Actually, there is a grand bulk of discussion on process capability in t
Electronics Forum | Fri Jun 03 16:52:48 EDT 2005 | davef
Your customer is being smart. When we look at the evaluation that some component suppliers do in assessing the potential of the pure tin solderability protection they've chosen to produce tin whiskers, we just shake our heads. Essentally they say,
Electronics Forum | Tue Sep 26 20:14:29 EDT 2000 | Dave F
I agree with Wolfgang that a check list, like he proposes, is very useful in evaluating your ability to assemble products. No sense designing a 16 inch board if the throat of your wave is 15 inches. Taking a different tact � what if you define your
Electronics Forum | Tue Sep 26 20:16:07 EDT 2000 | Dave F
I agree with Wolfgang that a check list, like he proposes, is very useful in evaluating your ability to assemble products. No sense designing a 16 inch board if the throat of your wave is 15 inches. Taking a different tact � what if you define your
Electronics Forum | Wed Dec 05 17:23:41 EST 2001 | davef
Now there�s a conundrum. You want the �best way to clean leads�, but you want to use the worst type of flux for cleaning leads. You say, �20% copper exposed� � * What happened to the solderability protection during this two-year storage? Wouldn�t
Electronics Forum | Fri Apr 05 01:52:34 EST 2002 | djarvis
Huh, what, geez. Wazza time Jimbo? Call me a cab. Why is this gentleman retroflecting? Why would anyone make an articulatory gesture by turning the tip of the tongue back against the roof of the mouth? I don't know what this is a bout, but I can a