Electronics Forum | Wed Jan 04 10:41:39 EST 2006 | Amol Kane
thank you for reenforcing my knowledge of this fact. usually the customer reads 1 line in 1 paper somewhere out there and takes it as the absolute truth. we have a 8 zone reflow, that is very capable of handling lead free (max sp 350 deg cel)
Electronics Forum | Thu Jan 05 15:15:08 EST 2006 | grantp
Hi, Really? Where are those? Can you post them on the lead free thread that's currently running? Regards, Grant
Electronics Forum | Thu Jan 05 15:30:19 EST 2006 | samir
Pure ignorance is my answer to that.... You're with a CM, right?? Your idiot customer probably has never stepped foot on a manufacturing floor in his entire gott-damn life, but.... he reads SMT Magazine every month, and probably read some article
Electronics Forum | Mon Jul 29 15:30:45 EDT 2013 | markhoch
Nitrogen in Reflow is grossly over-rated...., in my opinion, and in the opinion of several very well known SMT Industry "God Fathers". Way too much $$$, for a slight increase in the process window. If you profile your oven specifically for your pr
Electronics Forum | Wed Jan 04 10:34:04 EST 2006 | DannyJ
I don't believe you are missing anything, Amol. Mainly, you just need to make sure that your oven handles the higher temperatures needed for reflow. Also, there has been a lot of discussion on how many zones are needed to properly reflow lead-free
Electronics Forum | Wed Jan 04 11:19:30 EST 2006 | DannyJ
Amol, Glad to help. We're experiencing the same thing with a bunch of our customers... Someone reads one paper and they are automatically an expert on the subject... Your 8 zone oven should definitely be more than adequate. Just make sure and pa
Electronics Forum | Fri Feb 16 13:43:07 EST 2007 | ck_the_flip
Hi Darby, Where did you get the info. that cooling rate is not-as-critical for lead-free? I'm not doubting you, and I actually want this to be the case. We don't have chillers on our ovens, and on fast profiles, we only achieve 2 to 2.5 deg. / s c
Electronics Forum | Wed Jan 04 13:59:14 EST 2006 | chunks
Ask your customer why they need this? Show them your process. Then bury them in their own unknowledgeable requests. It is pretty scary how many papers are also written about how easy it is to reflow a lead-free BGA with regular leaded paste. ht
Electronics Forum | Thu Jan 05 16:35:16 EST 2006 | Amol Kane
correct, I am in the process of recommending the correct material, process and logistical variables to the customer to help them transition to a LF product
Electronics Forum | Mon Feb 12 13:58:10 EST 2007 | campos
Tks for the answers,, My concern is about the intermetalic layer,,I run SMQ230 LEAD FREE paste.. its liquidous at 217C..the oven have 7 zone, but I run in 5 zones also with a more agressive profile (due to the line rate)..I would like to know if runn
