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Participant

Join Date: Sep 2007
Posts: 2

Printed Circuit Board "Thieving"

02/29/2008 12:00 PM

Who can tell us about the term "thieving" as used in printed circuit board fabrication?

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#1

Re: Printed Circuit Board "Thieving"

02/29/2008 4:19 PM

It's the technique of putting extra "islands" in the middle of otherwise empty space in order to keep the plating uniform. It can be a bad idea depending on what kind of board you have. Normally the layout guy (is that you?) tries to avoid those spaces. If you have a ground bus nearby, it might be a good idea to tie that extra copper to ground rather than have it float.

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#2

Re: Printed Circuit Board "Thieving"

03/01/2008 3:36 PM

We have to create an extra copper i.e conductive layer as to pass current while plating or any other electrlytic process. Also for flex panels it strenghtens the panel for holding so as to avoid any damages while handling.So theiving is additional copper on the borders of panel.

Vipul

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#3

Re: Printed Circuit Board "Thieving"

03/03/2008 3:29 AM

Also sometimes at the ends of pad layouts for ICs to reduce shorts between pads.

Thieves marked "t" <<<<--------- direction of board through wave----

It doesn't matter if the thieves short to the "first two pads because they (the thieves) are not connected to anything else.

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