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Subject:	Re: Water Soluble Flux on SMT and No Clean Flux on Wave solder
From:	Brian Ellis <[log in to unmask]>
Reply To:	TechNet E-Mail Forum.
Date:	Tue, 25 Apr 2000 09:09:19 +0300
Content-Type:	text/plain
Parts/Attachments:	text/plain (49 lines)

Ivan

Although some may not consider it logical, there is no reason why you should not do
this PROVIDED that all the WS process is terminated before you start on the "no-clean"
process. In fact, many use "no-clean" for rework after total WS production.

Brian

Ivan Barrios wrote:

> Hello Technetters:
> We are trying to go to No clean flux in our wave solder process. However,
> we still run some of these products with water soluble paste in SMT. We
> will still wash the boards after SMT to remove any of the residues from SMT
> process. Any issues foreseen with mixing the two types of manufacturing
> practices (No clean and Water soluble) in the same product? (corrosion,
> reactivation of crystalized WS flux while it passes thru wave, etc)
> Any and all responses are welcome
>
> Ivan Barrios
>
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