Electronics Forum: process (Page 308 of 1146)

Porosity in Good Plating

Electronics Forum | Wed Jul 16 21:48:43 EDT 2003 | sam

Dave, I believed you are really experienced in SMT soldering process. What I meant good connection, should really be "Visual check by naked eye OK". From your message, there are situation of "marginal solderability" that will lead to uncertainty

Cp vs Cpk

Electronics Forum | Tue Jul 08 18:37:54 EDT 2003 | MA/NY DDave

Hi AlC, Q: Who calculates Cp, Cpk. It depends on the company, it's size and structure. Some expect the SMT / Process Engineer to do this work and others have all kinds of other groups involved. YiEngr, MA/NY DDave

Reasonability of a request from an OEM for you CMs.

Electronics Forum | Thu Jul 17 18:49:31 EDT 2003 | slthomas

So you wouldn't verify with something other than your own visual (magnified to whatever you have on hand at your facility) inspection that you could use the process without damaging the product?

Conformal Coating Removal

Electronics Forum | Thu Aug 21 21:05:28 EDT 2003 | davef

Try: http://www.circuittechctr.com [We have no relationship nor receive benefit from the company referenced in the above link.] Alternately, the fine folk and Denny Ferry at Circuit Technology Center [above link] list processes for removing confor

printing solder paste on test vias

Electronics Forum | Fri Aug 22 00:25:20 EDT 2003 | mantis

Kenny, Out of curisoty why do you need to paste the vias.Is it due to contact reliability at test.Can these vias not be soldered during wave process (if any).Can the Style of probe used in the ICT test fixture not be changed to accomodate these unsol

printing solder paste on test vias

Electronics Forum | Tue Aug 26 21:12:24 EDT 2003 | iman

depends if your water wash process is manual or automation? important is the water residue inside the via holes is adequately blown out. As long as the water-flux residue is out, testing down the line should not be a issue, at least from theory and o

Manufacturing breakthroughs?

Electronics Forum | Wed Sep 03 08:49:54 EDT 2003 | Kris

Hi. Process wise changing the alloy to lead-free although it is not a "technology" it has broken down almost everybody and sustained and survived some I guess

Mechanical stripper for fine magnet wire

Electronics Forum | Mon Oct 04 13:17:03 EDT 2004 | Mike Khosh

I have designed a tool that works great on magnet wires. I am in the process of applying for patent. The tool will work on ml coated magnet wires (36-45 AWG). If you are intersted, please send an email to mkhosh@bellsouth.net.

What causes Bga corners to lift during reflow

Electronics Forum | Tue Sep 30 20:59:40 EDT 2003 | Dean

Have you verified the thermal profile recently? I would start there and verify your process has not shifted. It does happen.

Traceability again

Electronics Forum | Tue Sep 30 17:45:56 EDT 2003 | davef

Q1: Do you use some sort of commercial software for traceability? Or do you have an huge database and some self programmed data-collection tools for each machine? A1: We use commercial database software. Q2: So just why do you have to trace? Just be


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