Single Layer PCBs Are The Most Cost-effective Circuit Board
Characteristics of Single-Layer PCB
Single-layer PCB (Single-Sided PCB) has the following characteristics:
- Simple Structure: Consists of only one conductive copper layer, with all circuit traces on one side, and the other side is usually an insulating substrate.
- Low Cost: Due to its simple manufacturing process and low material costs, it is suitable for mass production.
- Easy Design & Manufacturing: The circuit design is relatively straightforward, and the mature production process ensures a short manufacturing cycle.
- Suitable for Low-Complexity Circuits: Ideal for simple electronic devices such as LED lighting and power modules, but not suitable for high-density or high-frequency applications.
Single-Layer PCB
Manufacturing Features of Single-Layer PCB
- Substrate Material: Common materials include FR4 (fiberglass), CEM-1, CEM-3, or paper-based substrates (such as FR1, FR2).
- Copper Foil Thickness: Standard thickness options include 1oz (35µm), with alternatives like 0.5oz (18µm) or 2oz (70µm).
- Surface Finishing: Options include OSP (Organic Solderability Preservative), HASL (Hot Air Solder Leveling), ENIG (Electroless Nickel Immersion Gold), and Silver Plating.
- Processing Method: Uses an etching process to remove excess copper and form circuits; drilling is used for component mounting.
Application Fields of Single-Layer PCB
Due to its cost-effectiveness and easy production, single-layer PCBs are widely used in various low-complexity electronic products, including:
- Consumer Electronics: Calculators, toys, radios, and other simple electronic devices.
- Home Appliances: Control circuits in rice cookers, fans, washing machines, microwaves, etc.
- LED Lighting: Widely used in LED drivers and lighting fixtures such as LED strips and streetlights.
- Automotive Electronics: Car audio systems, lighting control circuits, and other simple vehicle electronics.
- Power Modules: AC-DC, DC-DC converters, and power management circuits.
- Industrial Control: Basic control panels, sensor modules, and other low-end industrial applications.
SCSPCBA’s Single-Layer PCB Manufacturing Capabilities
| Single Sided PCB Item | Single Sided PCB Capability | ||
|---|---|---|---|
| Number of Layers | 1 layer | Surface Finish | OSP, HASL, Lead-free HASL, ENIG, Silver Plating |
| Max Board Size | 1200mm × 600mm (depending on factory capability) | Solder Mask Colors | Green, Blue, White, Black, Red, Yellow |
| Min Board Thickness | 0.4mm | Final Tolerance | ±0.1mm |
| Max Board Thickness | 3.2mm | Warping | ≤0.75% |
| Base Material | FR4, CEM-1, CEM-3, Paper-based (FR1, FR2), Aluminum-based | Hole Copper Thickness | ≥20µm |
| Copper Foil Thickness | 0.5oz (18µm), 1oz (35µm), 2oz (70µm) | Testing Method | Flying probe test, test jig |
| Min Line Width/Spacing | 0.1mm/0.1mm (4mil/4mil) | Products Type | HF(High-Frequency)&(Radio Frequency) board, Impedance controlled board , HDI board , BGA& Fine Pitch board |
| Min Drilled Hole Diameter | 0.2mm (8mil) | Functional Test | Insulating resistance : 50 ohms (mormality) |
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