Electronics Forum | Tue May 16 07:44:42 EDT 2006 | Chunks
Hi smtspecialist (man I gotta get me a name soon), NO! Your oven cannot contaminate your process. Unless you have flux residues dripping on your board, there is nothing to worry about. Now having your operators switch from leaded to lead-free smo
Electronics Forum | Wed Jul 06 18:11:37 EDT 2005 | russ
Please search the archives as this has been discussed on many occasions. Everything should be fine except for BGAs which will require a higher temp of 235C at the peak in reflow.
Electronics Forum | Tue May 16 13:36:10 EDT 2006 | Chunks
Good for you smtspecialist and your clean oven. It's always better to be too picky, cause once the goo starts dripping, they'll only blame it on your paste. Mistress? No, gotta keep gender out of the work place. How about "Connoisseur Chunks"? S
Electronics Forum | Thu May 18 08:27:05 EDT 2006 | grantp
Dear Guru, Dude, are you on drugs? Seriously, I really would love to know. I want some of them. I have dreamed for years to enter the state of mind you have attained. Your going to mine alternative metals? What stuff that's not on the periodic ta
Electronics Forum | Sat May 20 22:09:43 EDT 2006 | Ola
Interesting... We had visitors from (maybe out of space) that claims that the fumes!!! from whithin the reflow leadead solder process in an oven can get caught inside the oven during time and later on when we fire up the beast to the lead free temp-p
Electronics Forum | Mon Nov 08 11:00:53 EST 2004 | davef
It's possible your supplier has not thought through the results of their conversion to lead-free throughly. We'd expect something like: Reflow Parameters||Pb Assy||Pb Free Peak Temp.||235�C �5�C||255�C �5�C Time Within 5�C Peak Temp.||20 to 40 sec.|
Electronics Forum | Tue May 16 07:32:05 EDT 2006 | aj
Contaminate your Leadfree Process with WHAT? What contamination are you concerned about? Its an oven - it doesnt care what you put in it... Your main concern is that you can achieve the desired Leadfree Profile...dont be confused or concerned whe
Electronics Forum | Sun May 21 19:18:52 EDT 2006 | grantp
Hi, I think you should be ok, as the contamination in a reflow oven is generally flux from what I have seen. I have never heard to the solder metals itself being inside the oven apart from some paste in hole we did that sometimes dropped a bit of so
Electronics Forum | Wed May 17 23:45:05 EDT 2006 | smt_guru
The question to ask is not so much in contamination of this mixed technology metallurgies, but rather, will this metallurgy successfully coalesce into a reliable interconnect? I find in my consulting travels worldwide that many of my clients do not
Electronics Forum | Thu May 18 09:52:09 EDT 2006 | russ
Guru, you are nothing but a liar, any respectable consulting firm would not use a name as Guru Expert. Also would not change from a contamination thread to all the BS you just threw out trying to impress with your vocabulary. One does not need to qu
