Might be worth noting that a similar case exists for teardrops, which most
fabs will prefer to have in place. Potentially more
catastrophic for voltage clearances, S, RF and microwave applications.

As always, if your sensitive to it then constrain it, analyse your
assumptions, and communicate your requirements and
expectations clearly.

Best Regards
 
David Greig
______________________________
GigaDyne Ltd
Buchan House
Carnegie Campus
Dunfermline KY11 8PL
United Kingdom
t: +44 (0)1383 624 975
www.gigadyne.co.uk
______________________________


From: [email protected] [mailto:[email protected]] On Behalf Of Sylvia Toma
Sent: 17 November 2005 03:28
To: [email protected]
Subject: Thieving on PCB

Hello group,

I have a question regarding thieving on printed circuit board and hoping that
you could help me:

If the PCB manufacturer wants to add copper thieving to the PCB layers to help
balance the copper distribution since there is a
potential for thickness variation as well as possible warp without it, is the
copper thieving considered to be at '0' volt or
treated as 'floating' as far as safety spacing is concern?  Looking forward to
your reply.

Regards,
Sylvia


                
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