Have you looked at water soluble no clean fluxes e.g. Multicore MF300?
Neil
Neil Atkinson - Quality Manager
Stadium Electronic Controls Division(UK)
-----Original Message-----
From: Grant Emandien [mailto:[log in to unmask]]
Sent: 15 August 2001 10:33
Subject: <No subject given>
Hi all out there,
One of our customers is concerned with the level of flux
residue (no clean)
present on RF boards - concern that the flux characteristics
negatively
affects circuit perfomance (FR4 material, HASL finished is
being used for
circuitry operating at 5GHz). He has thus requested to
rather assemble using
water-soluble flux. With water-soluble flux of course comes
cleanliness
issues which may result in latent defects due to entrapped
corrosive flux
residue. The product is spec'd to operate, uncoated at
-40deg.C. Any
insights into this dilemma?
Thanks in anticipation.
Grant
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