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cleaning of no clean flux

Electronics Forum | Wed Aug 10 07:55:21 EDT 2005 | ajaydoshi

we are using heareous F381, F352 no clean solder paste. specially in qfp for high frequency board we observe that cleaing / removing of ' no clean flux 'is require. if we do not clean same most of time after all test & envioumental test it shows pin

QFN PCB Pad no Drain Hole

Electronics Forum | Wed May 22 19:10:47 EDT 2013 | anvil1021

We do a lot of these devices and I guess I am not familiar the term "Dry Solder". The QFN device is not designed to have a drain hole, but needs to have thermal vias to control heat in most cases. We have used every possible gnd pad design and modifi

Has anyone heard of a no clean paste that can be cleaned in straight DI water ?

Electronics Forum | Tue Jan 30 18:25:25 EST 2018 | aqueous

This is one of the most common questions I get asked. Why clean no-clean flux. It was stated earlier that no-clean residues are benign. This may or may not be accurate. It depends on several factors including the reflow process. In a perfect world, t

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