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Thickness of various Cu weight on PCBs

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tim99

Electrical
Aug 28, 2002
2
Does anyone know what the thickness of the Cu is for various weights of Cu plating used in PCB manufacture? ie:0.5oz, 1oz and 2oz copper
 
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One ounce copper means that one square foot of a given thickness of copper will weigh one ounce. Now if you look up the volumetric weight of copper and work backwards, you will find that one ounce of copper in a sheet one foot square is about 0.00135 inches thick.

The proof is left to the student.
 
Thanks for your help everyone.
For anyone else who wants to know: (per Rogers Corp. website)

0.5oz Cu = 0.7 mil
1oz Cu = 1.4 mil
2oz Cu = 2.8 mil
 
For the people prefering SI-units:

0,5 oz: 17um
1 oz: 35um (most common)
2 oz: 70um
3 oz: 105um
 
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