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January 2009

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TechNet E-Mail Forum <[log in to unmask]>, jonathan noquil <[log in to unmask]>
Date:
Wed, 21 Jan 2009 07:37:29 -0700
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TechNet E-Mail Forum <[log in to unmask]>, "Whittaker, Dewey (EHCOE)" <[log in to unmask]>
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"Whittaker, Dewey (EHCOE)" <[log in to unmask]>
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I know some think my current mindset is in a state of flux, but why are
you trying to clean a no clean?
Dewey

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of jonathan noquil
Sent: Wednesday, January 21, 2009 7:22 AM
To: [log in to unmask]
Subject: [TN] UMICORE PASTE

Hi techies:
Does anybody from here had an experience on UMICORE solder paste?
I am using 95/5Sn from UMICORE and they claim it as no clean flux.
However
residues are teribble.
I have problem on removing these residues. The flux residue is dark some
sort of it is burned or charred. And really difficult to remove during
flux
cleaning using Ionox 1332?
I encountered lots of wirebond non-sticks.

Is this normal to UMICORE/Microbond pastes?

Hope to hear from all of you.

regards
Jon

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