Electronics Forum | Tue Mar 06 03:29:05 EST 2001 | daled
Hello I am looking for any data that confirms the long term reliabilty of no clean paste as opposed to water soluable. Does anyone have any past experiences of problems when changing over from water soluable to no clean in the SMT prcocess?? Thanks i
Electronics Forum | Thu Jun 21 14:43:37 EDT 2001 | Ian T
for the application we hae to do, we can't print paste. we can however dispence paste. what are the advantages and disadvantages? is there any equipment you would recomend? thx for the help
Electronics Forum | Tue Mar 21 08:22:11 EST 2006 | jdengler
If you usually get good release on other products with your paste, I would try a different batch of paste. The batch you are using may have a problem that contributes to the beading. Jerry
Electronics Forum | Wed Sep 10 16:53:46 EDT 2008 | realchunks
Actually it's not rare. I use several pastes from various manufacturers that add 2% silver in their leaded pastes. I would bet it's 2% silver.
Electronics Forum | Sat May 29 06:07:16 EDT 2021 | rsatmech
Thanks, I do observed more solder paste terms of percentage in 0.06mm stencil than in 0.08mm stencil.
Electronics Forum | Tue Mar 21 02:15:26 EST 2006 | pavel_murtishev
Good morning Dave, Here are some of my assumptions. Please correct me if I am wrong. 1. Mask opening. Due to mask to PCB misregistration mask is not always centered relative to pad center how is should be. Sometimes edge of the mask matches with ed
Electronics Forum | Tue Aug 08 21:00:24 EDT 2000 | Dave F
Shawn: You're correct most solder preform manufactures don't want to sell preforms without skinning you alive for tooling charges!!! Considering alternatives, can you print or dispense paste? It would be mucho cheaper. We've talked about using pa
Electronics Forum | Thu Jan 15 15:13:50 EST 1998 | justin medernach
| I have a problem! The solder on my pc boards look great comeing out | of my reflow oven. They go thrue the rest of the prossese | and at the end at the qc station it's cold or whitish or gray not shiny. | does any one have a idea on how to correct
Electronics Forum | Fri Jan 16 23:46:38 EST 1998 | Scott
| I have a problem! The solder on my pc boards look great comeing out | of my reflow oven. They go thrue the rest of the prossese | and at the end at the qc station it's cold or whitish or gray not shiny. | does any one have a idea on how to correct
Electronics Forum | Mon Sep 23 22:31:48 EDT 2002 | davef
Comments are: * It�s interesting, but not surprising that your time above liquidous varies around the sides of this component. * You are correct in thinking that it is better to reduce than to increase the temperature differences around the component
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