| Layer count: four 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 |



