Electronics Forum | Mon Feb 27 06:42:37 EST 2006 | Slaine
What are the long term issues with high tin content solders on parts plated with silver over copper? Is it possible that the silver will be absorbed by the solder then over a long period of time the tin will react with the copper causing it to part
Electronics Forum | Tue Mar 07 14:18:32 EST 2006 | James
Billy, I have to disagree with you. We inadvertently soldered a Pb BGA with SAC305 paste and then had it micro sectioned and spectrum analyzed. Imagine our surprise when we saw the spectrum analysis showed Pb. The micro sections showed none to ac
Electronics Forum | Tue Mar 07 14:23:21 EST 2006 | billyd
I think it has a whole lot to do with the heat applied, and the paste type. It was a seriously populated, very thick board, so we had to go big with the heat just to make 240-ish. That produced voids maybe 45 or 50% of the ball size. We knew immediat
Electronics Forum | Thu Mar 09 16:14:19 EST 2006 | marc
CGO Assuming your system is performing well here are a few ideas to help out your profile.... - Pull the material spec and ensure you are meeting the requirements for times and temp. Many times the material will allow a mild soak of the board prior
Electronics Forum | Fri Mar 10 12:02:46 EST 2006 | Chunks
Ah, I have 3 of these ovens. Not bad ovens at all. You mentioned a PLCC 64. Is this part having the delta T problem? If so, that seems odd. Without knowing your exact set-points, you could pump in more heat up front. Change blower speeds to hig
Electronics Forum | Thu Mar 09 16:29:35 EST 2006 | russ
Will the Pb part handle 240C? That is the first question that you need to answer. If it will then yes I would run the pbfree paste and profile. I assume that all other components are pbfree. If not, the same questions will need be asked as for th
Electronics Forum | Tue Mar 14 15:13:35 EST 2006 | Kevin
The Novastar is primarily a low end machine made in India, I think. Technical Devices is more comparable with other dedicated wave soldering machine manufacturers. I recently got a good deal on a new TD machine with a Titanium Pot and Pump. It was
Electronics Forum | Wed Mar 15 10:15:17 EST 2006 | paulinct
Kevin, Thanks for the reply! I haven't had a chance to see the Novastar. Now maybe I will save myself the trip. The TD rep is trying to contact someone close by so we can go take a look. I am definetely leaning towards TD because they have worked f
Electronics Forum | Wed Mar 15 13:00:08 EST 2006 | jdumont
Hi Paul, I have been to the Novastar mfg plant in Penn. and to a demo of the TD Nu Era model also in Penn at Advanced Competitiveness Institute. After seeing both we have decided to go with the TD model. Im not sure where you are located but the regi
Electronics Forum | Thu Mar 23 14:39:24 EST 2006 | Chunks
I thought I already DID fall on my head and that's why I'm here..... I think you got something with the ESD coat Rob. You could market it as "The Process Profesional ESD Smock" (Lead Free smocks available soon). It would be like a regular smock or
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