PCB Tolerances

Twisted Traces follows in-house tolerance guidelines to ensure the quality of the printed circuit boards. Our strict adherence to these tolerance values has helped us provide performance-oriented printed circuit boards to clients in diverse industrial verticals.

Inner Layer Clearances 0.010" ( Minimum)  
 Outer Layer Scoring .010" ( Minimum)  
 Inner Layer Scoring .015" ( Minimum) 
 Annular Ring .005" ( Vias) & 0.007" ( component holes) – Minimum values 
Pad Size  0.010" over finished hole size for vias/ + 0.014" over finished hole size for component holes  
 Minimum Hole Size And Tolerance  Min Finish Hole: 0.006", Hole Tolerance: ±0.003"
Printed Circuit Board Thickness Tolerance  +/- 10% (min.+/- 0.005")  
Copper Trace Width Tracing  .004" for 1 oz. copper. finishing (outer layers) and .5 oz. copper finishing (inner layers) 
 Silkscreen (Legend) 0.005" minimum line width 

For any questions, or unique requirements, please feel free to call us on (630) 345-5400. We are ready to help you 24/7.

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