Electronics Forum | Wed Dec 15 08:32:35 EST 2004 | ptavernier
Thank's Pete, I know is an old product but I would know its reflow thermal profile because I'm not sure about it. It's a linear melting or an melting with soak zone ? I haven't data on alphametals.com ...
Electronics Forum | Wed Dec 15 08:44:50 EST 2004 | cardinal
Hi Patrick, For UP 78 the best profile is also the easiest. Straight ramp to 220-225 1-2 degrees C per second TAL 45-60 seconds drop it staight off The Tech bulletin says the exact same thing. Former Alpha Guy here
Electronics Forum | Wed Dec 15 09:11:14 EST 2004 | ptavernier
Hi Cardinal, OK. Thank's. It's all right. What do you about SAC305 ? Do we use a linear melting too ?
Electronics Forum | Wed Dec 15 12:47:59 EST 2004 | DasonC
Recommend to check http://leadfree.ipc.org I agreed the lead free is a must for environmental and human health. Not sure how soon they can found out another harmful material
Electronics Forum | Fri Dec 17 09:02:51 EST 2004 | patrickbruneel
No thanks Rob I don't want these jokers to come to the conclusion that humans are the biggest producers of CO2 simply by breathing. The good part is plants convert it back to O2. So I suggest y'all keep some plants in the greenhouse and we be fine.
Electronics Forum | Fri Dec 17 14:20:01 EST 2004 | Claude_Couture
CO2 is not the problem, CO (carbon monoxide) produced by combustion (engines,fires, etc) is. Trees and vegetation can process CO2, but not CO.
Electronics Forum | Tue Dec 21 13:18:41 EST 2004 | patrickbruneel
Here a link to a study on leaching http://www.pbfree.com/pdf/groundwater_leaching/solder_leachate.pdf
Electronics Forum | Tue Jan 11 13:11:25 EST 2005 | Mike
Regarding Ken's statement that "Its market protectionism for the Europeans" - this is nonsense. European producers have to meet the requirements too, and they're no better at it than anyone else.
Electronics Forum | Tue Jan 11 13:44:16 EST 2005 | russ
It is interesting that I have heard the market protectionaism statement from numerous people (CEOs and the like)
Electronics Forum | Wed Dec 15 10:48:23 EST 2004 | gopinath A
I heard that Steam Aging (storage) tests would be inappropriate for gold finishes. Is this a correct statement? If so, what are the reasons? How bad is the shelf life of ENIG
.gif)
