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March 2001

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Subject:
From:
Alain Savard <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 12 Mar 2001 13:49:16 -0500
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Layer to layer misregistration allowance depends on the design... The old
mil spec use to call for 0.0140". But depending on im,pedance control, pad
and hole sizes... It can vary... a lot!

Alain Savard
CAE Montreal

-----Original Message-----
From: Lam, Patrick [mailto:[log in to unmask]]
Sent: March 12, 2001 1:01 PM
To: [log in to unmask]
Subject: [TN] Layer to Layer registration


Can someone tell me:
What is the maximum layer to layer mis-registration allowance for a 6-layer
PCB?

I have been specifying 0.0015", is asked to change to 0.003" by a new
supplier. I forgot where I got that 0.0015.

Please help!

Patrick Lam
Phone:(604)293.4392

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