The plating index is a figure we calculate based upon the copper density and distribution on the outer layers. A plating index less than 0.40 will result in plating problems during production, will decrease yield and may affect the quality of the finished PCB. Areas marked in blue risk being under-plated and areas marked in red risk being over-plated or in some cases even “burned”.

To find out more about copper distribution and the plating index and for tips on how to improve plating quality, go to our Eurocircuits Blog.

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Plating index