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May 2005

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Subject:
From:
Eddie Rocha <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Eddie Rocha <[log in to unmask]>
Date:
Thu, 12 May 2005 09:47:51 -0700
Content-Type:
text/plain
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text/plain (113 lines)
Is anybody measuring the diameter of these vias? If so,
why? Isn't interconnect achieved regardless?

Thank you,
Eddie Rocha
South Bay Circuits


Deac,
A .013" finished hole with a .024" pad is "STANDARD" fare
for fabricators.
 We even get .013" FHS in .020" pads.  We will make this
without an
additional charge but ask if we can switch to a .010" FHS
to guarantee no
breakout, otherwise, allow some breakout on holes (no more
than a mil). We
are starting to see more and more 0.018" pads on BGAs- so
times-are-changing!
Happy Holden
Westwood Associates




Deac Descoteaux <[log in to unmask]>
Sent by: TechNet <[log in to unmask]>
05/12/2005 12:27 PM
Please respond to
TechNet E-Mail Forum <[log in to unmask]>; Please respond to
Deac Descoteaux <[log in to unmask]>


To
[log in to unmask]
cc

Subject
[TN] board fab






All!



We have a customer that has had a design that we did quoted
for 1000
pieces
by a fab vendor.

We have a .013 finished hole with a .024 pad. We're saying
that that is
not
a DFM problem. Any "GOOD "vendor should not choke on this.



What say you?



Thanks



Deac



KAW/USA
Director, Business Development
39 Simon Street, Suite 4
Nashua, NH   03060
phone: (603) 886-8711 ext.202
fax:   (603) 881-8763
Cell : (603) 557-7568
Web sites:
www.kaw.com
www.emistream.com


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