Electronics Forum | Mon Oct 16 20:33:18 EDT 2000 | Dave F
MK: If you are getting good product with air, here�s what you should do: * Turn off the N2. * Sell that N2 cracker machine. * Pat yourself on the back. * Go out for beers. [Not any of that Canadian Fosters crap, tho][Did you know that Ozzies do
Electronics Forum | Mon May 22 16:50:50 EDT 2000 | Kathy Palumbo
Mike, Is that greater than 80% yeilds, or less than? Here are the answers to your questions: Is you placement guranteed good? YES What x-ray have you used? Nicolet Are your fab.'s known good? YES Could you de-solder Samsung and replace with ano
Electronics Forum | Fri May 16 10:06:44 EDT 2003 | pjc
Traceability of raw material, personnel and equipment performance during product manufacture: Tracing raw material is done by recording the material mfg.�s batch-code that they assign during the material�s manufacture. This is everything from the fl
Electronics Forum | Thu Mar 30 07:44:06 EST 2006 | samir
Is your customer hands-off when it comes to what type of process materials you use on their assemblies?? In the world of Contract Manufacturing Hell, you'll have a mixed bag of customers...some, who don't care what materials you use - after all, YOU
Electronics Forum | Mon Dec 28 15:43:22 EST 1998 | Mark D.
We have a new PTH board that utilizes lap pads on the B/S. Some of the pads are paired closely together and are aligned at angles (30,45,60 degrees)to the boards direction of travel through the wave. The pads most always bridge together. I realize th
Electronics Forum | Thu Aug 23 11:19:40 EDT 2001 | Hussman
Hi delnosa, Sorry about being 10 days late - don't get to the bottom of the page much. I'm working of layering flex circuits sandwiched between FR4 layers. The flex is primarily designed to take the place of interconnects like yours. I work in ap
Electronics Forum | Thu Nov 01 05:30:06 EST 2001 | wbu
This is not about the physical laws but besides contamination, which will actually IMO cause NO WETTING, it is quite vital that the time-limit the flux is active is not exceeded during your reflow process. Depending on your paste/flux you will have a
Electronics Forum | Tue Nov 13 12:02:54 EST 2012 | jaimebc
I'll try swaping cards and see if the problem follows the card. So far, my guess would be the motor going bad. I did change the brushes, X wagon cables and every cable that goes to the midas unit. But that didn't fix it. The problem is that to replac
Electronics Forum | Thu Feb 13 19:08:31 EST 2014 | darby
Have to agree with Sr Tech and Spoilt - you'd have to really mistreat your paste these days for it to be the root cause. However, try another paste to eliminate that; making sure you abide by the suppliers specs. Pad design, stencil design,(includin
Electronics Forum | Wed Jun 29 12:31:32 EDT 2022 | proceng1
I don't know about that paste, but I can give my experience trying intrusive reflow (pin in paste). Using standard Lead-Free paste, we often had issues. It seems that many ROHS parts can't actually handle reflow ROHS temperatures. So the fact that
