Tab RoutingTab Routing
The difference between the drill diameter and the corresponding circuitry pad diameter as measured as Annular Ring
Available drill sizes are listed below. For holes plated with copper and hot air leveled, a drill size will be chosen that is 0.125mm to 0.15mm larger than the specified
Preferred Pad Construction for Class 3 – 0.125/0.125 Surface Mount Technology Recommendations for two traces between 1mm BGA pads are as follows: • Via Pad diameter 0.55mm • Hole callout
Preferred Pad Construction for Class 2 – 0.15/0.15 Surface Mount Technology Recommendations for one trace through 1mm BGA pads are as follows: • Via Pad diameter 0.55mm • Hole callout
Preferred Pad Construction for Class 1 – 0.2/0.2 Surface Mount Technology Recommendations for one trace through 1mm BGA pads are as follows: • Via Pad diameter 0.50mm • Hole callout