I would say no, don't remove them in this case. PCB Fabricators remove non-functional pads to reduce drill wear and tear and improve the side profile of the drill. They still need you to maintain the same clearance between hole wall and track as though the non-functional pad was still there. Non-functional pads should only be removed to improve PCB fabrication and never to be able to route tracks closer to a hole.



Regards,

James



James Head

Oxford Instruments

Magnetic Resonance

www.oxford-instruments.com

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Tubney Woods, Abingdon, Oxon OX13 5QX, UK

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-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of Larry

Sent: 27 February 2018 17:28

To: [log in to unmask]

Subject: -|EXT|- Re: [TN] Non Functioning pads



Ok the customer's main concern is that the board is still Class 3 if the non functioning pads are removed, I can't find anything in the IPC specs that says I can't remove them.  The main reason is to free up space for routing on the inner layers.



Thanks all,



Larry

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