PCB Track dimensions
JLCPCB
| Feature | Description | JLCPCB | Euro PCB |
|---|---|---|---|
| Notes | These numbers are taken from Pattern Class 6, and Drill Class A, PCBs with these parameters can be run via all “Service Index”. |
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| PCB Specification | |||
| Layer count | The number of copper layers in the board. | 1-20 Layers | |
| Max. Dimension of PCB | The maximum dimension JLCPCB can accept | 400×500 mm | |
| Dimension Tolerance | ±0.2mm for CNC routing, and ±0.4mm for V-scoring | ±0.2 mm | |
| Finished Outer Layer Copper | Finished copper weight of the outer layers | 1, 2 oz (35, 70 µm) | 1/3, 1/2, 1, 2, or 3 oz Cu (12, 18, 35, 70, 105 µm) |
| Finished Inner Layer Copper | Finished copper weight of the inner layers | 0.5 oz (18 µm) by default, 2 oz inner copper weight is available for 4-layer PCBs with 1.6 mm thickness/JLC3313 stackup/2 oz outer copper weight. | 1/3, 1/2, 1, 2, or 3 oz Cu (12, 18, 35, 70, 105 µm) |
| Drill/Hole Size | |||
| Drill Hole Size | Min. drill size is 0.20mm. Max. drill size is 6.30mm. | ||
| Drill Hole Size Tolerance | +0.13/-0.08mm, e.g. for the 0.6mm hole size, the finished hole size between 0.52mm to 0.73mm is acceptable. | ||
| Blind/Buried Vias | not supported | ||
| Min. Via hole size | For Single and Double Layer PCB, the minimum via hole size is 0.3mm; For Multi-Layer PCB, the minimum via hole size is 0.2mm | ||
| Min. Via diameter | For Single&Double Layer PCB, the minimum Via diameter is 0.5mm; For Multi-Layer PCB, the minimum via diameter is 0.45mm (Limitation 0.4mm). | ||
| PTH hole Size | 0.20mm - 6.35mm, The annular ring size will be enlarged to 0.15mm in production. | ||
| Pad Size | Minimum 1.0mm, The pad size will be enlarged by 0.5mm than the hole size. The minimum size of the annular ring around plated through hole pads is 0.25mm. If the recommended sizes are not respected then the pad will not be produced properly. | ||
| Min. Non-plated holes | The minimum NPTH dimension is 0.50mm, Please add the NPTH in the mechanical layer or keep-out layer. | ||
| NPTH | We make NPTH via the dry sealing film process, if the customer would like an NPTH but around with pad/copper, our engineer will dig out around pad/copper about 0.2-0.25 mm, otherwise, the metal potion will flow into the hole and it becomes a PTH. (there will be no copper dig-out optimization for A single board). | ||
| Min. Plated Slots | The minimum plated slot width is 0.5mm, which is drawn with a pad. | ||
| Min. Non-Plated Slots | The minimum Non-Plated Slot Width is 1.0mm, Please draw the slot outline in the mechanical layer (GML or GKO) | ||
| Min. Castellated Holes | The minimum diameter of castellated holes is 0.60mm. | ||
| Hole size Tolerance (Plated) | +0.13mm/-0.08mm, e.g. for the 1.00mm Plated hole, the finished hole size between 0.92mm to 1.13mm is acceptable. | ||
| Hole size Tolerance (Non-Plated) | ±0.2mm, e.g. for the 1.00mm Non-Plated hole, the finished hole size between 0.80mm to 1.20mm is acceptable. | ||
| Rectangle Hole/Slot | Rectangle/Square Slots, we don't make rectangular or square plated holes, only make oval or round plated slots. For non-plated slots, rounded corner-rectangular or square slots are supported. The recommended minimum size is 3×3 mm. | ||
| Minimum Annular Ring | |||
| 1oz Copper | |||
| - Minimum Annular ring | 0.13mm | ||
| - PTH | 0.3mm | ||
| 2oz Copper | |||
| - Minimum Annular ring | 0.2mm | ||
| - PTH | 0.3mm | ||
| Minimum Clearance | |||
| Hole to hole clearance (Different nets) | 0.5mm | ||
| Via to Via clearance (Same nets) | 0.254mm | ||
| Pad to Pad clearance (Pad without hole, Different nets) | 0.127mm | ||
| Pad to Pad clearance (Pad with hole, Different nets) | 0.5mm | ||
| Via to Track | 0.254mm | ||
| PTH to Track | 0.33mm | ||
| NPTH to Track | 0.254mm | ||
| Pad to Track | 0.2mm | ||
| Copper to Board Edge outer layers (routed boards) | 0.25 mm (10 mil) | ||
| Copper to Board Edge inner layers (routed boards) | 0.40 mm (16 mil) | ||
| Copper to Board Edge all layers (V-cut) | 0.45 mm (18 mil) | ||
| Minimum trace width and spacing | |||
| 1-2 Layers | |||
| - Minimum trace width | 5mil (0.127mm) | ||
| - Minimum spacing | 5mil (0.127mm) | ||
| 4-6 Layers | |||
| - Minimum trace width | 3.5mil (0.09mm) | ||
| - Minimum spacing | 3.5mil (0.09mm) | ||
| 2oz Copper weight | |||
| - Minimum trace width | 8mil (0.2mm) | ||
| - Minimum spacing | 8mil (0.2mm) | ||
| BGA | |||
| 1-2 Layers | |||
| - Minimum BGA pad dimensions | 0.25 mm | ||
| - Minimum space between BGA pad | 0.127mm | ||
| 4-6 Layers | |||
| - Minimum BGA pad dimensions | 0.25 mm | ||
| - Minimum space between BGA pad | 0.127mm | ||
| Solder Mask | |||
| Solder mask opening/ expansion | 0.05mm The solder mask should have a minimum of a 0.05 mm “growth/mask opening” around the pad to allow for any misregistration. | ||
| Solder bridge | 0.2mm (green), 0.254mm (other colours) To have a solder mask bridge, the spacing between the copper pad's edge must be 0.2mm (8 mils) or more. | ||
| Solder mask colours | green, red, yellow, blue, white, and black. We use LPI (Liquid Photo Imageable) solder mask. It is the most common type of mask used today. | ||
| Legend (Silk Screen) | |||
| Minimum Line Width | 6 mil (0.153mm) Characters width less than 6mil(0.153mm) will be unidentifiable. | ||
| Minimum text height | 40 mils (1.0mm) Characters with heights less than 40 mils (1.0mm) will be unidentifiable. | ||
| Character width to height ratio | 1:6 - The preferred ratio of width to height is 1:6. | ||
| Hollow-carved Character width-to-height ratio | 1:6 - The preferred ratio of width to height is 1:6. | ||
| Pad To Silkscreen | The Minimum Distance Between Pad and Silkscreen is 0.15mm. | ||
| Board Outlines | |||
| Trace to Outline | Ships as individual board(Rounting):Trace to Outline ≥0.2 mm | ||
| Trace to V-cut line | Ship as panel with V-scoring: Trace to V-cut line ≥0.4 mm | ||
| Panelization | |||
| Panelization without space | The space between boards is 0 mm. | ||
| Panelization with space | Make sure the space between boards should be ≥2 mm, otherwise it will be hard to process for rounding. | ||
| Panelized Round board | ≥20mmx20mm The single round board size should be ≥20×20 mm. Panelize with stamp holes and add tooling strips on four board edges | ||
| Panelized castellated holes board | Panelize with stamp holes and add tooling strips on four board edges, The distance between the castellated hole and board corner should be larger than 2mm. Recommended diameter of stamp hole is 0.5mm-0.8mm; Recommended distance between the two stamp holes is 0.2-0.3mm | ||
| Min. Width of Breakaway Tab | The minimum width of the breakaway tab is 4 mm. For breakaways with mouse bites, the minimum width is 5mm. | ||
| Min. Edge Rails | 3 mm If choosing “Panel by JLCPCB”, we will add 5mm edge rails on both sides by default. | ||
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