We have seen modifications in 4 layer PCB manufacturing over time. PCBs manufactured nowadays are different from conventional PCBs. This is because of the cost and other factors that affect the reliability and working of a PCB.
Once you’ve decided on the number of layers ideal for PCB, you now have to think through the factors that make a multilayer PCB better than a single or double-layer PCB.
1. How to use PCB?
The first thing that you should consider is the usage of your PCB. Different kinds of PCBs are beneficial for different devices; also, the demands these devices will put on the PCB.
2. What Operation Frequency Is Needed?
When you’re considering all of the options, it is also essential to find what operation frequency it’ll be serving. Its parameter decides the capacity and functions of a Printed Circuit Board.
3. What is my budget?
Amongst other things, your budget and manufacturing costs of a single or double-layer PCB versus a multilayer PCB are also considerable. The prices increase as you move towards the advancements.
4. How Quickly Do I Need The PCBs?
The time to make a PCB also plays an important role. Different PCBs will take different periods to develop. The time needed to make a PCB depends upon the size of the board area.
There are many benefits of using a 4 layer PCB design, over and above it saves weight and space:
| Multi Layers | 1-2-4 |
|---|---|
| PCB Material | FR-4 |
| Available Color | Green, Red, Yellow, Blue, White, Black |
| Silk Screen | White, Black |
| Maximum Size | 45cm X 120cm |
| Minimum Qty | 5pcs |
| Board Thickness | 0.6mm,0.8mm, 1.0mm, 1.2mm, 1.6mm |
| Thickness Tolerance (t≥1.0mm) | ± 10% |
| Thickness Tolerance (t | ± 0.1mm |
| Insulation Layer Thickness | 0.075mm--5.00mm |
| Minimum PCB Track | 6mil (Recommend >8mil) |
| Minimum Track / Vias Space | 6mil (Recommend >8mil) |
| Minimum Pads Space | 8mil |
| Min Clearance Between Traces and Through Holes | 16mil |
| Minimum Silkscreen Text Size | 32mil |
| Out Layer Copper Thickness | 1oz(35um) |
| Inner Layer Copper Thickness | 1oz(35um) |
| Drilling Hole (Mechanical) | 0.3mm—6.35mm |
| Drill Diameter Tolerance (unplated) | 0.05mm |
| Drill Diameter Tolerance (plated) | 0.1mm |
| Outline Tolerance (Mechanical) | ±0.20mm |
| Aspect Ratio | 8:1 |
| Solder Mask Type | Photosensitive ink |
| SMT Min Solder Mask Width | 0.25mm |
| Min Solder Mask Clearance | 0.25mm |
| Solder Mask Thickness | 15um |
| Surface Finish | HASL, HASL (Lead-free), ENIG. |
If you’re looking for a 4 layer PCB manufacturer for your device then you don’t have to worry at all, you can find PCB boards at an instant order from MOKO Technology. We manufacture the best PCBs that are reliable and offer high quality.