Electronics Forum | Tue Mar 20 04:40:15 EDT 2018 | rob
I've seen them down at 2 metres in the past, but usually only 4 zone. from memory Electrovert used to do a small 5 zone with pin chain - Infraflow 500 or something. To be fair, even small one line CEMs usually have a decent oven as you need to be a
Electronics Forum | Sun Mar 25 08:45:00 EDT 2018 | jacobidiego
Normally some random components of size 0604 or below and may be due to a thermal mass being close like a transformer or AC electrolytic caps. We tried changing fan speed, but this will change the thermal profile and avoid the thermal mass from bein
Electronics Forum | Tue Aug 14 13:54:57 EDT 2018 | etmpalletguy
Vlad, Reduce your aperture opening in the stencil, this will give the stencil a good seal around the specific area of concern. In a wave solder environment, solder balling top or bottom surfaces in a wave pallet is caused by excessive flux burning o
Electronics Forum | Wed Aug 22 03:07:20 EDT 2018 | robl
Doesn't look like it would be deliberately high temp for it's functionality or package type, unless it was accidental on a batch at the packaging plant. To get the datasheet you have to either go through the "request Info" on https://www.kingston.co
Electronics Forum | Wed Aug 29 09:32:27 EDT 2018 | m_imtiaz
Dear All We are using structural similar type of connector in A & B product with same set parameter in selective soldering machine but result in B product is not good. Observation – Plating on A product Connector terminal done on all 4 side But In
Electronics Forum | Fri Jan 11 02:19:54 EST 2019 | jlawson
Jetting paste is no easy , ball mesh size and metal loading, SG and the dynamic rehology of the flux medium need to be matched to the jetting forces from the dispensing system. There are many jetting valve makers Musashi from Japan, Nordson Lyquidyn
Electronics Forum | Fri Nov 16 03:38:03 EST 2018 | premkumar_haribabu
Hi all, We have to solder a nickel tabs ( coming in SMT reels ) in to HASL PCB finish pads using refow oven & during this we facing poor wetting issues, more voids & we done pull strenth , its came out with in 1 kg ,I doubt that nickel coated materi
Electronics Forum | Wed Nov 21 06:01:57 EST 2018 | premkumar_haribabu
Hi Davef, Thanks for your quick reply , just my inputs - we using 99.99 % pure nickel strip for soldeirng & when we do manual soldering this nickle stips its working well but when coming to SMT reflow even after high peak temperature ,its removes ev
Electronics Forum | Fri Jun 07 11:19:14 EDT 2019 | gregoryyork
If you have soldered with HASL finish then the worrying chemistry will be more like NON IONIC. They sit there and attract moisture like mad and any chlorides they hold ionize in the moisture attracted and cause electromigration or SIR issues. They ca
Electronics Forum | Thu May 09 11:37:12 EDT 2019 | slthomas
I'm curious about what you guys do for Pb-free HASL profiling. We seldom see this finish (only on consigned boards or if they specify it directly, which is very rare) so we don't have a lot of experience. Certainly we get better results with high
