Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Steve Restinetti (aka Bix)

#9100

Solder Paste Trial | 7 October, 1999

I am thinking on testing or possibly changing my company's solder paste brand. Anyone have any suggestions or hints on how to cover all my bases before making such a bold move? Present paste used: Alpha WS-629 Paste to trial: Multicore OA Sys WS-22.

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Jason Gray

#9101

Re: Solder Paste Trial | 7 October, 1999

Make sure you check the MSDS for the new paste. If you have more than one production line, I'd suggest a gradual changeover. One selling point for management would be the free training Multicore will give you for the switch. If you haven't already compared the pastes performances, do normal chemical testing (viscosity, solderability, solder ball, copper mirror/halide, etc. . .) and, if possible, run half of a build with each paste and compare defect data. I've conducted several paste evaluations, including a 20 month, 15 paste eval, so if you need any more help, please feel free to contact me @ jasongr@nortelnetworks.com

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#9102

Re: Solder Paste Trial | 7 October, 1999

| Make sure you check the MSDS for the new paste. If you have more than one production line, I'd suggest a gradual changeover. One selling point for management would be the free training Multicore will give you for the switch. If you haven't already compared the pastes performances, do normal chemical testing (viscosity, solderability, solder ball, copper mirror/halide, etc. . .) and, if possible, run half of a build with each paste and compare defect data. I've conducted several paste evaluations, including a 20 month, 15 paste eval, so if you need any more help, please feel free to contact me @ jasongr@nortelnetworks.com | Bix: J-STD-001B, Appendix C defines test methods to determine the compatability between process materials and boards and other assembled materials. Ta. Dave F

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Steve Restinetti (aka Bix)

#9103

Re: Solder Paste Trial | 7 October, 1999

| | Make sure you check the MSDS for the new paste. If you have more than one production line, I'd suggest a gradual changeover. One selling point for management would be the free training Multicore will give you for the switch. If you haven't already compared the pastes performances, do normal chemical testing (viscosity, solderability, solder ball, copper mirror/halide, etc. . .) and, if possible, run half of a build with each paste and compare defect data. I've conducted several paste evaluations, including a 20 month, 15 paste eval, so if you need any more help, please feel free to contact me @ jasongr@nortelnetworks.com | | | Bix: J-STD-001B, Appendix C defines test methods to determine the compatability between process materials and boards and other assembled materials. Ta. Dave F | Thanks to everyone so far for the help. every little bit of input helps!

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