Electronics Forum: soldering flux (Page 1 of 333)

Selective dip soldering & flux monitoring system

Electronics Forum | Thu Apr 20 08:49:08 EDT 2006 | Chunks

a) Is there a recommended dip or dwell time for the dip soldering? Check your data sheet for the part. Dwell time is everything in selective soldering. Top side wetting is a good process indicator. b) How do we improve the solder coverage in the

Selective dip soldering & flux monitoring system

Electronics Forum | Wed Apr 19 04:41:42 EDT 2006 | ge_lim

Hi I am using selective soldering to dip soldering the connector pins to the PCB and would like to know your experience: a) Is there a recommended dip or dwell time for the dip soldering? b) How do we improve the solder coverage in the TH? c) How t

Selective dip soldering & flux monitoring system

Electronics Forum | Wed Apr 26 10:21:09 EDT 2006 | slaine

Hi you need to dip long enough for the temperature of the part being soldered to reach about 20 degrees above liquidus of the solder. For the small parts we dip solder we had Sn62 and SAC387 baths set to 250 degrees and this seems to work best for us

ROSE testing for no-clean flux soldering assemblies

Electronics Forum | Mon Aug 19 11:36:27 EDT 2019 | bulur

How does no-clean flux residues on a PCB assembly impact the ROSE testing? Does no-clean flux residues on the PCBA dissolve in solution of ROSE tester and increase ionic contaminants level in terms of NaCl per surface area? Is ROSE tester solution (a

ROSE testing for no-clean flux soldering assemblies

Electronics Forum | Mon Aug 19 17:06:27 EDT 2019 | bulur

Hello Mike, Thank you for your response. This information is very helpful for us. Thank you again,

ROSE testing for no-clean flux soldering assemblies

Electronics Forum | Mon Aug 19 13:32:54 EDT 2019 | aqueous

ROSE testing a post-reflow assembly which has been reflowed using no-clean flux may not yield information that is helpful. No-clean flux technology works by encapsulating the flux's activators and other chemical constitutes that would be harmful if l

no clean flux + wave soldering issue

Electronics Forum | Tue Sep 02 14:59:41 EDT 2008 | hermes

if two boards with different solder masks give different results on flux residue level after soldering with the exact same machine settings than it is clear that one of the solder masks is not compatible with your no-clean flux. could be the solder m

no clean flux + wave soldering issue

Electronics Forum | Wed Aug 27 14:58:21 EDT 2008 | omid_juve

we have problem in setting the density of a no clean flux for using before wave soldering . first we dilute the flux but we have many short circuit problem between the pads of edge connector,then we densify the flux all the short circuit is removed b

no clean flux + wave soldering issue

Electronics Forum | Thu Aug 28 11:31:17 EDT 2008 | patrickbruneel

Matt solder mask finishes gives the widest process window in view of potential amount of residues when using No-Clean. Shiny (glass like) finishes are more sensitive to residues due to lower surface area compared to matt finish. If the shiny finish i

no clean flux + wave soldering issue

Electronics Forum | Wed Aug 27 15:49:43 EDT 2008 | grics

I think WML ought to have some photos on how to do this...

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