Electronics Forum: second (Page 36 of 241)

Soldering problem with Au plating PCB

Electronics Forum | Mon Jan 26 13:13:07 EST 2009 | rgduval

We've had this same problem with the solder wicking to the component terminations. However, in our case, we did not see the pads turning a silver-white color...rather, they exhibited a tarnishing/darkening of the gold. We determined that we had som

Flexa Prog query

Electronics Forum | Wed Mar 04 20:28:17 EST 2009 | kircchoffs

you can copy board at the panelize option and put the value of width of the first board at y of the second board. use panel fiducial at the mark coordinates

Double sided BGA assembly

Electronics Forum | Mon Aug 17 19:37:25 EDT 2009 | hegemon

And of course the obvious, you'll want to be running that second side on the rail, and not the belt. Yeah, yeah, too obvious, I know... but don't say no one said so! 'Hege

Problem with flux

Electronics Forum | Thu Aug 20 07:10:46 EDT 2009 | davef

Questions are: * On what portion of the second side of the board [eg, solder only, solder mask only, etc] do you see this white hazy residue? * Could you attach a picture? * You mention cleaning this residue. What have you used to clean the residue?

Programming Mydata

Electronics Forum | Tue Aug 25 01:33:00 EDT 2009 | hurr

Hi Jack, we have in our comapany My15 and MY9. Both machines we programming almost daily only in excell. First manually, second with excell macro. Both alternative are almost camparable. It´s depending on amount of SMD parts and skills. Radek

SMD Adhesives Gluing Process

Electronics Forum | Tue Sep 22 08:55:31 EDT 2009 | stepheniii

Second, ESD-stuff > IS very confusing. Largely because people don't > know what they're talking about. I think a lot of that is because of followers following followers.

BGA failure after coating

Electronics Forum | Mon Oct 05 04:55:42 EDT 2009 | pengliang

we suggest as below : the first : check the soldering(solder ball and pad) by X-ray ; second: to do dye analyse (note:pls confrm is there have crack )

Researching placement machines - where do I start?!

Electronics Forum | Wed Jan 06 04:55:41 EST 2010 | deltaservices

Interesting read your tread. I miss one thing, if you want a running garantee, then why not contact a manufactorer for a second hand. Good luck on the new machine, and I hope it will make you a lot of money

Lab & Low Volume Reflow oven

Electronics Forum | Fri Nov 13 11:10:07 EST 2009 | isd_jwendell

I'll second the recommendation for the GF-12 series, although I ended up with the Mistral-260 because of the exchange rate and the longer tunnel. Unfortunately the 260 does not open for easy access like the GF-12, although I haven't needed access yet

BOTTOM SIDE CHIP COMP FALLEN OFF IN WAVE SOLDER

Electronics Forum | Thu Dec 10 06:01:22 EST 2009 | gregoryyork

have you checked solder resist cure as this will cause the glue to lose adhesion if not cured correctly especially if dwell time sin the wave are excessive i.e 4-5 seconds cheers Greg York


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