Electronics Forum: said (Page 26 of 179)

Where to start with a new reflow oven

Electronics Forum | Fri Oct 17 14:33:05 EDT 2003 | AXL

Wait a minute I thought I said Celestica and a few others have done the Engineering evaluations on a list of 10 top solder paste's and Indium SMQ92J and Kester's R560&562 came out on top. First you say 'don't trust all of the so called experts on thi

Must read: The Manufacturing Coalition

Electronics Forum | Thu Feb 12 16:25:18 EST 2004 | joe

For those of you that do not know it, our little Republic here is based on Capitalism. Corporations have a right to make a profit. Moreover, a corporation has a responsibility to internal and external stakeholders. Employees are internal and sharehol

Print solder paste on test pad on OSP board

Electronics Forum | Fri Sep 10 09:39:32 EDT 2004 | Bryan Sherh

Dears, I've a board with OSP surface finish,and I planned to print solder paste on the test pad for easy ICT, because the probe can't reach the OSP covered pad.But to my surprise,after reflow there's much flux residue on top of test pad(or solder) an

Pre- and post-reflow rework

Electronics Forum | Sat Feb 12 13:40:27 EST 2005 | etienne

As I was explaining in my thread, the things that you have to look for when buying an AOI is the false calls rate (which you described perfectly) vis a vis the money and time you want to spend. We bought our machine after that we evaluated some. As y

Lead-free and Leaded solder in the same reflow

Electronics Forum | Tue Jan 31 14:23:39 EST 2006 | samir

Chunks, For our lead-free eval, we had the same problem with "charred looking" solder paste up the component termination of one of the smaller discretes, coupled with excessive solder balling...this smaller part did see peak temps in the 240 range -

Very interesting (a must read)

Electronics Forum | Thu Dec 07 13:44:56 EST 2006 | patrickbruneel

SCIENCE NEWS December 06, 2006 U.S. mulls removing lead from list of pollutants By Timothy Gardner NEW YORK (Reuters) - U.S. environmental regulators are considering removing lead, a heavy metal linked to learning problems in children, from a lis

solder paste measurement machine

Electronics Forum | Thu Apr 26 10:07:06 EDT 2007 | realchunks

Hi Dub J, I have worked for a few companies that did 3D sampling and found the data they produce to be useless. In the real world they are slow, so that means you won't sample every board. Now if you're not sampling every board, and you start to r

no clean flux + wave soldering issue

Electronics Forum | Thu Aug 28 12:03:54 EDT 2008 | wavemasterlarry

My people said I was needed again here on The Forum. Thanks Mr Head for the goddos on wave soldering. It's a hard process to grasp and not every one nows how to adjust eveything properly. I can tell you regognize expertise when you see it. That s

Way to port SMT program from Mydata to Panasonic?

Electronics Forum | Wed Sep 17 12:37:57 EDT 2008 | stepheniii

Panapro can be set up for the centroid data in any order. You won't be able to load the centroid data straight into the machine though. At one time I used Unicam to program a mydata. Then we got a panasonic line. The panarep said we could configure

Latent shorts on QFN package

Electronics Forum | Wed Mar 04 08:21:42 EST 2009 | rgduval

It seems familiar, but nothing that I've actually experienced. I've read some articles about tin-whiskering in lead-free solder. I think NASA has some pretty good analysis (or, at least they did a couple of years ago). The summary is that without


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