Electronics Forum | Wed Apr 21 19:32:13 EDT 2021 | davef
Here's some information about Fred Dimock's work on vacuum reflow - Operation of a Vacuum Reflow Oven with Void Reduction Data [ https://smtnet.com/library/index.cfm?fuseaction=view_article&article_id=3336&company_id=40492 ]
Electronics Forum | Tue Mar 23 16:20:54 EDT 2021 | grahamcooper22
Hi, just wondering are many assemblers using vacuum reflow systems, whether they be forced air based or vapour phase type ? If so, anyone seeing any negatives caused by the vacuum with regards liquid solder being 'sucked' away from the joints in the
Electronics Forum | Thu May 13 15:20:43 EDT 2021 | grahamcooper22
Hi, are there any component types that are not suitable for vacuum reflow ? I've had one customer use his vacuum vapour phase reflow system on a pcb, and on 10% of the hermetically sealed accelerometers devices. the lids have popped off... Thanks Gra
Electronics Forum | Fri May 14 16:49:17 EDT 2021 | winston_one
Agree with WiIIR and also can recommend to play with vaccum pump RPM . Slower vacuum increasing have help me to resolve one problem caused by the vacuum (it was solder splash from BGA balls, but the reason can be similar to your case). Also check i
Electronics Forum | Fri May 14 05:50:26 EDT 2021 | williamrobbins
I've only used vacuum reflow on LED boards but I have heard that Vacuum may need to be reduced depending on components. I can't find the source at the moment but it was a study done by Heller I believe. I would experiment with different levels of v
Electronics Forum | Fri Mar 26 12:48:40 EDT 2021 | freddimock
Hello Graham, There are no simple answers to your questions but I will be giving a virtual talk covering the reasons for vacuum reflow with void data and unintended consequences in a few weeks at the SMTA joint Space Coast - Atlanta Chapter conferen
Electronics Forum | Thu Apr 22 14:45:19 EDT 2021 | nhusa
The SMTA Space Coast /Atlanta presentation will have a bit more information.
Electronics Forum | Thu Apr 22 16:10:52 EDT 2021 | davef
Here's where you register for Fred Dimock's Zoom SMTA Space Coast /Atlanta presentation https://smta.org/events/EventDetails.aspx?id=1488831&group=225213
Electronics Forum | Mon Apr 11 08:55:49 EDT 2005 | greg
One more question. Is it realy worth to have reflow oven with nitrogen for lead free?. What are yours experiences? Greg
Electronics Forum | Mon May 24 15:50:11 EDT 2004 | Rob
hi all What do you think about soldering pb-free in reflow oven (air) lenght 1,7m (5 zones top,bottom) with max zone temp. 300C? Do you think that this process will be stable? Our max PCb dimension 260x260 mm. When i compare different oven producer t
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