immersion Gold ENIG fr4 94v0 circuit board medical pcb and pcba
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| Max Layer | 60L | 8L | 36L |
| Inner Layer Min Trace/Space | 3/3mil | 3/3mil | 3/3mil |
| Out layer Min Trace/Space | 3/3mil | 3.5/4mil | 3.5/4mil |
| Inner Layer Max Copper | 6oz | 2oz | 6oz |
| Min Mechanical Drilling | 0.15mm | 0.1mm | 0.15mm |
| Min Laser Driliing | 0.1mm | 0.1mm | 0.1mm |
| Max Aspect Ratio(Mechanical Drilling) | 20:01 | 10:01 | 12:01 |
| Max Aspect Ratio(Laser Drilling) | 1:01 | / | 1:01 |
| Press Fit Hole Ttolerance | ±0.05mm | ±0.05mm | ±0.05mm |
| PTH Tolerance | ±0.075mm | ±0.075mm | ±0.075mm |
| NPTH Tolerance | ±0.05mm | ±0.05mm | ±0.05mm |
| Countersink Tolerace | ±0.15mm | ±0.15mm | ±0.15mm |
| Board Thickness | 0.4-8mm | 0.1-0.5mm | ±0.15mm |
| Board Thickness Tolerance(<1.0mm) | ±0.1mm | ±0.05mm | ±0.1mm |
| Board Thickness Tolerance(≥1.0mm) | ±10% | / | ±10% |
| Min Board Size | 10*10mm | 5*10mm | 10*10mm |
| Max Board Size | 22.5*30 inch | 9*14 inch | 22.5*30 inch |
| Contour Tolerance | ±0.1mm | ±0.05mm | ±0.1mm |
| Min BGA | 7 mil | 7 mil | 7 mil |
| Min SMT | 7*10mil | 7*10mil | 7*10mil |
| Min solder Mask Clearance | 1.5mil | 3mil | 1.5mil |
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