Hi all...
I've done a handful of space flight type PCB layouts that
used 1812's as a minimum. This is because NASA worries about whiskers
forming
between the metal plates.
Ken

__________________________________________

Kenneth Wood
Saturn PCB Design, Inc.
2737 Bishop Lane
Deltona, Fl 32725
Phone: 407-275-3220
Email: [log in to unmask]
Internet: http://www.saturnpcb.com

_________________________________________



-----Original Message-----
From: Bloomquist, Ken [mailto:[log in to unmask]] 
Sent: Friday, March 16, 2007 10:49 AM
To: [log in to unmask]
Subject: [TN] Engineering Question

Since it's Friday this could be a joke but I don't really think so.

Design Engineering asked Manufacturing Engineering, (believe it or not), "Do
you have any guidance on the maximum size we want to use for ceramic SMT
caps?"

I believe their concern is coming from the potential for cracks during
processing. We currently and probably will for quite some time use SN63 for
all our processing so the higher temperatures are not an issue.

Any guidance would be appreciated,

KennyB

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