Electronics Forum | Wed May 09 13:47:24 EDT 2007 | Frank
So if you are getting 100% consignment parts on a single sided board, then you are doing it all for free and getting 3-dollars for a doubled board? Wow, that is pretty cheap.
Electronics Forum | Tue Jul 31 14:09:12 EDT 2007 | realchunks
We buy a years worth of the 3M stuff and attatch the cost to a new customer. Guess there could be new and improved stuff out there, but without customer service, who's gonna buy it? Easier to go with what works. What's a "yin"?
Electronics Forum | Tue Jul 31 20:08:35 EDT 2007 | davef
"Yins" means "yall." It could be "yinz" also. Look here: http://www.urbandictionary.com/define.php?term=yins
Electronics Forum | Wed Aug 15 13:46:04 EDT 2007 | hussman
But in the REAL world where the part hits the board, all the software in the world can't predict part size descrepancy, polarity descrepancy, thickness error, or board tollerance errors.
Electronics Forum | Tue Nov 20 04:48:21 EST 2007 | beta
Hi all, I have never had to run a product with BGAs on the bottomside of a double sided board. I was just wondering if this is a done thing ? or should I stay well clear. any replies appreciated. aj...
Electronics Forum | Fri Sep 12 16:56:13 EDT 2008 | ppcbs
We have a double sided board with Immersion Silver Plating. After reflow the Silver turns a yellowish color. It still wets good, and the yellow color will polish off with a pencil eraser. Has anyone seen this, or know the cause?
Electronics Forum | Mon May 11 16:23:08 EDT 2009 | jorge_quijano
Yes, this is for a double sided board, (bottom) the issue is that the board has a lot af hand ion components before wave soldering, and some components are falling off within this process, even if I hit the 0603s with my finger It falls.
Electronics Forum | Wed Nov 10 10:41:57 EST 2010 | esoderberg
subject board fabrication calls for .05 -.125um of gold over 2 - 5 um of nickel. When doing double sided reflow using same profile, parts of the gold are tarnishing and causing test pad failures. any ideas as to the cause?
Electronics Forum | Fri Aug 26 23:00:18 EDT 2011 | mac5
On any new project we use double sided tape and place all the components to check for placement accuracy and polarity prior to pasting a board. We salvage any large/high dollar parts and toss the passives.
Electronics Forum | Wed Oct 12 03:20:42 EDT 2011 | pinktoh
Any recommendations for a good PIN FRIENDLY PB-Free ROLO solder paste? My process is OSP double-sided reflow with PTH wave soldering.
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