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Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


vacuum reflow

Views: 1371

#86439

vacuum reflow | 23 March, 2021

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 vacuum section, or any other weird phenomena ?

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#86454

vacuum reflow | 26 March, 2021

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 conference.

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#86527

vacuum reflow | 21 April, 2021

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 ]

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#86530

vacuum reflow | 22 April, 2021

The SMTA Space Coast /Atlanta presentation will have a bit more information.

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#86531

vacuum reflow | 22 April, 2021

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

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Reflow Oven