Electronics Forum: soldermask smd (Page 1 of 2)

0402 wave soldering

Electronics Forum | Wed Jan 07 07:50:24 EST 2009 | ludee_circuits

I think so. My customer once assembled resistors 0402 ,by Glue+wave soldering process. But PCB must be printed soldermask bridge between 0402 SMD PADs, otherwise you would encounter short problem. Sorry I don't have any comment for recommended footp

SMD Adhesives Gluing Process

Electronics Forum | Thu Sep 10 11:47:44 EDT 2009 | mikesewell

The adhesive should be a dielectric (insulator) by design, if not it could possibly short across leads of the very parts it's intended to secure. It normally isn't a concern - what is the surface resistance of your soldermask, bodies of ICs, ...etc.

Soldermask thickness

Electronics Forum | Fri Oct 03 07:49:18 EDT 2003 | mk

Mask Musings. Soldermask (SM) and its functions have changed and evolved over the years. As an ex-solder mask applicator, I can remember screening Colonial High Gloss Epoxy soldermask on boards back in the early 80's, ending up with a thickness that

Insufficient solder joint

Electronics Forum | Tue Dec 14 10:36:42 EST 1999 | Paul Peterson

I recently encountered reflow soldering defects on a pair diode package, the smd pad had a green contamination, I'm convinced that this is not oxidation. The no-solder condition appears to be caused by a sloppy soldermask process, although over the y

SMD Via hole design-thermal performance

Electronics Forum | Thu Oct 30 23:39:10 EDT 2014 | beilimanu

No paper thing, while I can make some suggestions based on my experience. what is the size of your via? If it's smaller than dia0.4mm, in PCB production process it should be filled by soldermask. So my suggestion is design it to be full filled by SM

Re: solder mask

Electronics Forum | Mon Aug 09 18:03:28 EDT 1999 | Earl Moon

I am having cleaning problems when processing PCB's which have TAIYO solder mask on them. After processing, hand soldering and cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide marks etc. Other solde

Re: solder mask

Electronics Forum | Mon Aug 09 16:15:30 EDT 1999 | JohnW

I am having cleaning problems when processing PCB's which have TAIYO solder mask on them. After processing, hand soldering and cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide marks etc. Other soldermasks

Re: solder mask

Electronics Forum | Tue Aug 10 07:28:49 EDT 1999 | Brian

I am having cleaning problems when processing PCB's which have TAIYO solder mask on them. After processing, hand soldering and cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide marks etc. Other

Re: solder mask

Electronics Forum | Tue Aug 10 15:19:55 EDT 1999 | Earl Moon

I am having cleaning problems when processing PCB's which have TAIYO solder mask on them. After processing, hand soldering and cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide marks etc.

Re: solder mask

Electronics Forum | Tue Aug 10 15:47:34 EDT 1999 | John Thorup

I am having cleaning problems when processing PCB's which have TAIYO solder mask on them. After processing, hand soldering and cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide mark

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