[time-nuts] PCB for frequency dividers
David C. Partridge
david.partridge at dsl.pipex.com
Fri Jul 25 01:28:37 EDT 2008
So if Au isn't the thing, what's the better answer? HASL Sn is the other
common option and I can smell tin whiskers as the counter argument to that.
Don't even think of suggesting regular HASL Sn/Pb - none of the PCB shops
will do that here (RoHS).
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Bruce Griffiths
Sent: 24 July 2008 22:51
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] PCB for frequency dividers
Au plating leaves the solder joints vulnerable to the formation of the AuSn
intermetallic compound which will lead to joint failure.
You may need to remove the Au before soldering.
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