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What is the importance of copper pour area ?

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smith_suez

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What is the importance of copper pour area ? And how do we design/ decide the area of Copper Pour Area for a purticular net.
Can you tell me how to design the ground area also in PCB
Thanks in Advance
 

Re: Copper Pour Area

copper pour area is a copper zone on the routing layer attached to a net/track to reduce heating and allow thermal relief due to high current. It is mainly used on power supply tracks.

a 2.5mm track can carry 8A on a 35um thickness at 30°c
 

Copper Pour Area

A large copper pour also provides a very low impedance net.

Sometimes it's used as an electrostatic shield.
 

Re: Copper Pour Area

resestivity of the track can be calculated as follows:

R= pL/A
where
P: specific resistivity of material (1.6 Ωmm²/cm for copper at 20°c on 35um track)
L: conductor length
A: area of the conductor

so a 1mm wide conductor of 1cm lenght of 35um thickness is 5mΩ at 20 °c
 

Re: Copper Pour Area

Hi,

Copper pour is used for different purpose and to the application of the Pcb,for eg it can also be used for Emi,shielding for critical signals etc..like wise there are other issues too,please google for more information,hope this will help you.

Regards,

Ramesh
 

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