Electronics Forum | Wed Nov 12 10:45:12 EST 2003 | johnthor
Absolutely, read the manufacturers MSDS. You do have it, don't you? We use Kester 971 and it reads Waste Disposal Methods: According to local regulations. Considered biodegradable. We did take the precaution of informing the local authorities and
Electronics Forum | Fri Jan 21 08:00:09 EST 2005 | Lloyd
I recently saw a brief presentation on selective cleaning using Co2. In basic terms a fine jet of Co2 is blasted onto the desired area of the PCB removing the contamination and supposedly causing no damage to PCB or components. I think it's quite a n
Electronics Forum | Sat Dec 16 08:23:11 EST 2006 | pr
The "Wave optimizer" is a little pricey but is easy to use, gives instant feedback (display on the unit as opposed to hooking it up to a computer)and will give feedback on the waves, as well as preheat. They will send you a unit to trial for a week o
Electronics Forum | Mon Dec 18 13:00:47 EST 2006 | grantp
Hi, We have a white residue, which is visible, and we would like to have the produce clean as it's a PCI card, so users see the PCB. I am wondering if we need to install a cleaning stage to the line for these kinds of products. Can anyone give som
Electronics Forum | Wed Dec 20 14:30:07 EST 2006 | Polynesian Pebbles the Joker
Hey pr...sure it's warm there, but I also hear that in that area where you live it's not too uncommon to have a kiddie pool in the front yard (with a couple of darkies in there), pickup truck parked on the front lawn, chain-link dog jails, with you o
Electronics Forum | Mon Feb 18 15:20:43 EST 2008 | kennyg
A PCBA contains a couple of parts that are not sealed and can't be water washed. We hand solder these with no-clean after everything else is water washed. The designer says the no-clean residue must be completely removed so that it will not affect
Electronics Forum | Wed Apr 28 12:08:02 EDT 2010 | tjg
Our latest designs are flip chip on flex based and we have issues with delamination/blistering. We know it is related to our vapor solvent (n-Propyl Bromide based) attacking an inner layer adhesive. Has anyone else ever heard of something like this?
Electronics Forum | Tue Jun 02 22:19:17 EDT 2009 | mikehe
We have been doing BGA's for years now, and I would suggest updating your profile and place a thermal couple on the BGA, keep in mind the bigger the part the more heat it will need, We stencil print all of BGA's from simple bga's to complex ones, you
Electronics Forum | Fri Jun 01 16:22:35 EDT 2001 | davef
Your supplier�s approach to managing process change is TOTALLY UNACCEPTABLE!!!! Now, let me get the froth back in my mouth. How in the world do we know if the residues on these "no-clean" boards are compatible with your product? J-STD-001C, para 4
Electronics Forum | Thu Apr 09 12:13:22 EDT 1998 | raymond
What is the pro & con of using flux dispensing vs flux dipping method for flip chip assembly ?
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