Electronics Forum | Wed Feb 24 01:04:08 EST 2010 | dashley
Is it necessary, or beneficial to apply solder paste on the PCB pads for QFN rework? It seems that using micro stencils is not the best approach. Any guidelines or suggestions available for paste deposition techniques?
Electronics Forum | Wed Jul 14 16:59:52 EDT 2010 | swag
Solder paste on the pads will keep part aligned. If you do not use paste, you will need to apply tacky flux. You should not run without one or the other.
Electronics Forum | Mon Apr 07 15:22:17 EDT 2014 | garym4569
Found the issue. The footprint is incorrect. The inductor completely shields the paste from heat. Slid the inductor on the pad to expose the pad and paste, and perfect solder joint. This part was a last minute design change with a larger body.
Electronics Forum | Thu Apr 14 09:47:46 EDT 2016 | emeto
You can also try different paste from what you are using(may be paste with lower melting point).
Electronics Forum | Mon Jul 10 02:33:48 EDT 2017 | dawson
"The Pin-in-Paste process can be used to solder through hole components using surface mount assembly process steps." I find it at https://www.smta.org/knowledge/proceedings_abstract.cfm?PROC_ID=5 Hope is helpful
Electronics Forum | Fri Nov 24 05:38:46 EST 2017 | jineshjpr
Can anybody suggest how to reduce 0402 LED tilting as I am using Convectional Reflow oven with 10 Heating zones and controlling the solder paste with 4.2 mills paste height
Electronics Forum | Sat Nov 25 22:24:42 EST 2017 | hemant_pang
Hi , Can anybody knows about PTS system Singapore who manufacturer of solder paste height inspection machine ZC 1000, we need control card of the machine, not able to get contact information of manufacturer Please share if you have some info
Electronics Forum | Wed Oct 10 07:26:18 EDT 2018 | cyber_wolf
I do not agree with that. Stainless is typically used and it works fine. We run many different paste types, RMA, no clean, WS, PB, Pb Free. No sticking issues. You can spend the extra money and buy coated blades but it is not necessary for most ap
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.
