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Subject:	Re: ASSY : Ionic Contamination on FR2
From:	[log in to unmask]
Date:	Sat, 11 Jan 1997 00:20:58 -0500 (EST)
Content-Type:	text/plain
Parts/Attachments:	text/plain (25 lines)

I have never heard that FR-2 would not hold up in ionic cleanliness testing
and it makes no sense to me. The 600 SMD uses IPA/water mixture and the test
duration is usually about 10-15 minutes at temperature <125 deg F.

With all the other processes that the board has to withstand (corrosive
fluxes, wave solder, etchants, etc, IPA/water seems pretty benign.

I would check with your source for this information. It seems bogus to me.

Larry Fisher
Dexter Electronic Materials
[log in to unmask]

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