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Date: | Fri, 25 Sep 2009 11:40:44 -0400 |
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Dewy is right, a couple of mils variation is normal.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Lee Whiteman
Sent: Friday, September 25, 2009 10:10 AM
To: [log in to unmask]
Subject: [TN] ENIG / HASL CO-PLANARITY
Happy Friday.
Does anyone have a reference on comparing the co-planarity between ENIG
and HASL (SnPb)? I know that ENIG is more planar than HASL, but by how
much (quantifying the argument). I'm anticipating a question from my
customer on why I want to use ENIG instead of HASL for fine pitch
applications.
Thanks.
Lee Whiteman, PMP
Senior Member Engineering Staff
L-3 Communications East
Telephone: (856) 338-3508
FAX: (856) 338-2906
E-Mail: [log in to unmask]
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