Electronics Forum | Fri Dec 14 23:10:05 EST 2018 | jandon
High quality coated blades are easier to clean but has zero affect to solder paste sticking.
Electronics Forum | Fri Nov 16 07:55:17 EST 2018 | robl
Hi Prem, We used to place millions of Nickel battery tabs using Cobar paste. We found it particularly aggressive. Just contact your local Cobar distributor and ask them for samples of their most aggressive fluxed paste. Kind regards, Rob.
Electronics Forum | Wed Apr 03 19:02:16 EDT 2019 | SMTA-Vikram
We still use Via as test points. so we need to paste Via. Pasting will make better contact with probes compare to test via without solder.
Electronics Forum | Sat Jun 01 04:27:37 EDT 2019 | gregoryyork
Increase paste volume and use ramp soak spike profiling. Reducing volume of paste often leads to entrapment. Good idea to know difference between voiding and dewetting due to contamination
Electronics Forum | Mon May 13 08:46:16 EDT 2019 | robl
No problem. We are very high mix too, but when we switched to 100% paste inspection to counteract the ineffective paste roll detection we found the printer was now by far the slowest.
Electronics Forum | Thu Aug 22 23:09:34 EDT 2019 | sssamw
Yes, you need work with supplier to see if can run pin in paste for these connectors, even do some experiments. A step-up stencil would be good for these connectors, also connectors pin size and length match with PCB hole design.
Electronics Forum | Wed Aug 21 13:28:20 EDT 2019 | ameenullakhan
And what is the solder paste selection recommendation for the same. 1. Water soluble ( organic based flux solder based ) 2. No clean ( rosin or resin based solder paste ) customer is suggesting water soluble chemistry , which is having lot hot an
Electronics Forum | Wed Aug 07 18:00:56 EDT 2019 | orbitcoms
I am doing another run today. I'll check how central the machine is placing the components onto the pads. I wonder if the part is off slightly and smudges past across the pins? What about if the part is being placed too deep into the paste?
Electronics Forum | Mon Aug 19 13:47:45 EDT 2019 | emeto
Forget about a stencil here. The only solution I have for you is to dispense this paste. There are some super cool Jet printers out there that will do the job.
Electronics Forum | Wed Nov 13 12:06:53 EST 2019 | slthomas
The answer is usually either too much paste or paste being deposited where it doesn't belong. In some instances the two are related. You don't say what kind of parts you're having problems with and that matters too. I agree with the previous poste
