Mô tả sản phẩm: Mạch in PCB 2 lớp phủ xanh mạ thiếc tiêu chuẩn FR4
| Items | Manufacturing Capabilities | Remarks |
|---|---|---|
| Number of Layers | Single-sided, double-sided, 4-layers, 6-layers | Currently the maximum we can do is 6-layers. |
|
Laminate |
FR-4
|
Currently we only do FR-4 for our orders. |
| Maximum Board Size(Dimension) | 420mm x 1200mm | Most boards are within the size of 420mm x 550mm. |
| Board Size Tolerance(Outline) | ±0.2mm/±0.5mm | ±0.2mm for CNC routing, and ±0.5mm for V-scoring. |
| Board Thickness | 0.4-2.0mm | Currently we offer boards of 0.4/0.6/0.8/1.0/1.2/1.6/2.0mm. |
| Board Thickness Tolerance(t≥1.0mm) | ±10% | Normally “Plus Tolerance” will occur due to PCB processing steps such as electroless copper, solder mask and different types of finish on the pads. |
| Board Thickness Tolerance(t<1.0mm) | ±0.1mm | Normally “Plus Tolerance” will occur due to PCB processing steps such as electroless copper, solder mask and different types of finish on the pads. |
| Minimum Trace | 6mil (0.15mm) | Design larger traces when condition permits. For multi-layer PCBs, the minimum trace on inner-layer should be 0.175mm, and minimum trace on outer layer can still be 0.15mm. |
| Minimum Spacing | 6mil (0.15mm) | Design larger spacing if possible, minimum spacing is 0.15mm. |
| Finished Copper Thickness (Outer Layer) | 35μm/70μm (1 OZ/2 OZ) | Also known as copper weight, 1 OZ equals 35μm, and 2 OZ equals 70μm |
| Finished Copper Thickness(Inner Layer) | 17μm (0.5 OZ) | Our finished copper weight for inner layer is 0.5 OZ which equals 17μm in thickness. |
| Drill Sizes (CNC) | 0.3-6.3mm | Regular drill sizes range from 0.3mm to 6.3mm. Extra charge may apply if larger than 6.3mm. |
| Minimum Annual Ring | 0.153mm (6mil) | Try to use bigger copper pad if possible, and the minimum annual ring is 0.153mm (6mil). |
| Finished Hole Diameter (CNC) | 0.2mm-6.2mm | Due to copper deposition/plating in the hole barrels, the finished hole diameter will be smaller than size of drill bits. |
| Tolerance of Finished Hole Size (CNC) | ±0.08mm | For example, if the drill size is 0.6mm, then the finished holes diameter ranging from 0.52mm to 0.68mm will be considered acceptable. |
| Solder Mask | LPI | Liquid Photo-imageable (LPI) is currently the most accepted solder mask in PCB manufacturing. |
| Minimum Character Width (Legend) | 0.15mm | Characters of less than 0.15mm wide will be too narrow and will be unreadable. |
| Minimum Character Height (Legend) | 0.8mm | Characters of less than 0.8mm high will be too small and will be unreadable. |
| Character Width to Height Ratio (Legend) | 1:5 | The ratio of 1:5 is the best and most popular one in PCB silkscreen legends processing. |
| Minimum Backset (Distance from Copper to Board Edge) | 0.3mm (12mil) / 0.5mm (20mil) | The minimum distance is 0.3mm for CNC routing, while the distance should be 0.5mm if you request V-scoring. |
| Minimum Diameter of Plated Half Holes | 0.6mm | For better connection between boards, we recommend to design this diameter to be at least 0.6mm. |
