Electronics Forum | Tue Dec 11 12:29:57 EST 2012 | deanm
Thanks for the comments so far. The smallest nozzle I've tried is a 4mm, which is what Pillarhouse used on this board to provide a sample. I tried this but wasn't as good as the 6mm. I've soldered the same connectors on a different board using a 10mm
Electronics Forum | Fri Apr 27 08:19:04 EDT 2012 | jim_n_hky
Can anyone offer guidelines on DFM and process recommendations for soldering .050" pitch connectors in the wave. The initail design had .026" drill with .043" pads so only .007" between pads. I requested .035" pads, but this still only leaves .015" b
Electronics Forum | Fri Aug 24 13:21:59 EDT 2018 | babe7362000
What do others use as far as solder paste type, stencil thickness and aperature size for a .4mm Ball Pitch CSP. Ball diameter is .3mm. Please let me know your thoughts or what you use. Thanks
Electronics Forum | Thu Aug 30 13:06:10 EDT 2018 | emeto
I don't know your board, but for this specific part: 10mil round aperture on a 3.5mil stencil with type 4 paste wold be ideal
Electronics Forum | Wed Aug 29 03:16:20 EDT 2018 | cannizzaro
It is recommended that the thickness of the stencil of 0.1mm, the steel mesh should be partially nano-coated. It is best not to dry easily, and the particles are not easy to be too large. I have tried ALLPCB for this kind of BGA in the past and they
Electronics Forum | Tue Dec 11 11:59:00 EST 2012 | sarason
The issue is surface tension around the connector. Your tip needs to have more surface tension than the pins of the connector as it forms a cluster when being soldered. When I used to solder superfine connectors with a metcal iron it had a horses hoa
Electronics Forum | Fri Dec 07 02:53:26 EST 2012 | beta
no expert but would using a smaller diameter nozzle help in anyway?
Electronics Forum | Fri Dec 07 02:55:24 EST 2012 | aj
I am no expert but would using a smaller nozzle help in anyway?
Electronics Forum | Wed Dec 12 16:16:39 EST 2012 | tombstonesmt
Nitrogen at nozzle supply is at around 47.5cfh.
Electronics Forum | Mon Dec 10 13:26:40 EST 2012 | dyoungquist
We are using our selective solder machine to solder a backplane with sixteen (16) 4x48 pin 0.080" connectors. Our first pass yield is about 85% meaning that 85% of the connectors come out with no bridges. Not quite as fine pitch as your connector a
