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why we add copper area to the board

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m_kavith

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copper area

why we add copper area to the board. i am not adding this. is it advtange?
 

copper area

It provides screening both for preventing radiated interference and being susceptible to it. It also reduces the track impedance which can be beneficial for reducing voltage drops. It reduces inductance which can be helpful with high speed circuits and fast edges.

Keith.
 

And it lowers the amount of copper that needs to be etched (less chemicals used, less waste products to dispose of).
 

Hope this link helps you to understand more.



Regards
Rajkumar R
 

Just a view thoughts on this;

- More copper means thinner prepeg layers. The resin in the prepeg layers will fill the gaps between the copper during lamination. More copper means less space to fill and thinner prepeg layers can be used.

- More copper will reduce warpage of the board.

- more copper is also a big advantage at the plating process. More copper will concentrate more field lines during the plating proces. The plating proces can be much better controlled.

- more copper means less copper to etch away. this will reduce the amount of under-etching.
 

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