Electronics Forum | Wed Sep 15 07:34:49 EDT 1999 | Edmund
Hi, Can someone pls suggest to me the best reflow temperature setting for a force air convection oven. The details is as follow. 1) Heller 1700s 2) 12 zone---6 top and 6 bot 3) Solder paste --- Qualitek 691 non clean 4) board size : 159mm X 159mm
Electronics Forum | Thu Apr 22 12:27:47 EDT 2004 | barry
I placed thermo's at 2 of the problem devices. Soak (time 150 to 180) 100 sec. Time above 180 =80 secs with 208 deg. peak. The solder appeared to flow at these pads, but little to no adhesion to the joint.Total time in oven was 5 min. All other joint
Electronics Forum | Wed Mar 20 16:21:54 EDT 2013 | woodsmt
I would reccomend at least a 8 zone system when doing RoHs. Most of the better systems (Vitronics, heller, BTU, ETC) built since 2006 should be able to run the higher temps for Pb Free. Should be a lot of them on the market world wide (used) with l
Electronics Forum | Fri Aug 17 08:37:47 EDT 2001 | jbieber
Gregory, I think that the profile is too radical, i.e. zone 6 to zone 7 temperatures are too far apart. I would guess that the solderjoints have not all reached 183C in zone 6 which is why the uBGA's do not have a symmetrical ball collapse. You may
Electronics Forum | Tue Aug 26 09:30:56 EDT 2003 | Jim Z
Marc, There are many types of nylon used in the connector industry and some are designed to be used in high temperature (225-250C) oven reflow applications. These high temp nylons are usually types 4/6 and 6T. It sounds like you are either using a
Electronics Forum | Wed Aug 09 08:59:52 EDT 2006 | zanolli
I agree with verifing this part is even high temp reflow compatible. The age of the original dwg release, 1986, and as there is no mention of high temp reflow compatibility, only a mat'l call out of nylon, leads me to think it is not.
Electronics Forum | Thu Apr 15 16:07:37 EDT 2004 | barry
Hi there all, we are having problems with 2 qfp devices. grainy poorly reflowed solder joints. One 100 pin .5mm pitch, and one 64 pin .5 mm pitch . Both of these devices have a thermo pad on the back of them (pad area soldered to back of device)which
Electronics Forum | Mon May 13 03:12:47 EDT 2019 | reckless
For your operation you may want to consider this depending on the kind of boards you are doing. https://neodenusa.com/smt-reflow-ovens/neoden-in6 110V 3 Zone Smart Reflow Oven Neoden I don't think china ovens are truly industrial grade but you may
Electronics Forum | Thu Sep 03 04:53:31 EDT 2009 | d0min0
to summarize - 3 components are placed on a single module x 8 on pcb - 2 anodes & 1 cathode are infected (so no component for us) - the problem does not look like wetting problem as the component and land pad is wetted, but the paste is not complete
Electronics Forum | Fri Mar 15 08:25:42 EDT 2013 | torch
looking for a bit of advice really, our current reflow oven (surfair 510) is in the process of slowly dieing so we are in the market for a replacement. I havent followed technologies on ovens for a while but im looking for something that is low to m
