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Layer count: 4 layers Board thickness: 1.60±0.16mm Minimum drill diameter: 0.1mm with laser drilling Aspect ratio: 8.0: 1 Line/space: 3mil/3mil Solder mask: light green with Taiyo PSR4000 Surface finish: Immersion gold: 2u Material: Shengyi S1140 Material Tg: 140 |