I agree with Karen that if you don't need the space why remove them.  If you did remove them and for some reason you switched to a different assembly CM who didn't have a high tech pick-&-place machine they would want you to put them back on.

Regards,
George
George M. Wenger
Failure Signature & Characterization Lab LLC
609 Cokesbury Road, High Bridge, NJ 08829
(908) 638-8771 Home  (732) 309-8964 Mobile
E-mail [log in to unmask]
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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Karen Tellefsen
Sent: Thursday, July 17, 2014 8:56 AM
To: [log in to unmask]
Subject: Re: [TN] Local Fiducials

If there is room for them, why remove them?

Karen Tellefsen - Electrical Testing
Alpha / 109 Corporate Blvd./ S. Plainfield, NJ 07080 [log in to unmask]
908-791-3069




From:   Bill Noel <[log in to unmask]>
To:     <[log in to unmask]>, 
Date:   07/17/2014 06:32 AM
Subject:        [TN] Local Fiducials
Sent by:        TechNet <[log in to unmask]>



Are local fiducials (those specifically associated with a single fine-pitch device) necessary anymore?  I've been told by a rep from our Assy CM that they're not necessary anymore with the advent of high-tech pick and place machines.  We've actually been designing some boards with .4mm pitch BGA's  Does this fine of pitch still not require fiducials? 
Thanks in advance for the response.




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