In today’s fast-paced electronics industry, the demand for compact, high-performance circuit boards has never been greater. Among the most commonly used board types is the double side rigid PCB—a reliable and cost-effective solution that supports more complex circuit designs than single-sided alternatives. Whether you are designing consumer electronics, industrial control systems, or automotive equipment, understanding the fundamentals of double side rigid PCBs can significantly improve your product’s performance and reliability. In this guide, we’ll walk you through everything you need to know about double side rigid PCB—from structure and advantages to cost and supplier selection.
1. What Is a Double Side Rigid PCB?
A double side rigid PCB (Printed Circuit Board) is a type of circuit board with conductive copper layers on both the top and bottom sides. Unlike flexible PCBs, double side rigid PCBs are made from solid substrates like FR4, which provide structural stability. This configuration allows electronic components to be mounted on both sides, enabling more complex routing and functionality within a limited space.
2. Double Side Rigid PCB Structure and Materials
The typical double side rigid PCB consists of:
- A rigid insulating base layer (commonly FR4 fiberglass epoxy)
- Copper foil layers on both sides
- A solder mask on each side
- Silk screen for labeling
The vias—usually plated through-holes (PTH)—connect the two copper layers electrically, making double-sided routing possible.
3. Key Advantages of Using Double Side Rigid PCBs
Some of the major benefits include:
- Increased circuit density: Components can be mounted on both sides.
- Improved performance: Reduced signal interference and optimized layout.
- Cost-effectiveness: More functionality without moving to multilayer boards.
- Mechanical durability: Rigid structure suitable for industrial and consumer use.
4. Common Applications of Double Side Rigid PCBs in Electronics
Double side rigid PCBs are widely used across industries:
- Consumer electronics (TVs, smartphones, gaming devices)
- Automotive electronics (dashboard controls, lighting systems)
- Industrial controls (PLC systems, robotics)
- Medical devices (monitors, diagnostic equipment)
- Communication systems (routers, switches)
5. Double Side Rigid PCB Manufacturing Process Explained
The standard manufacturing steps include:
- Substrate preparation (FR4 base)
- Copper lamination and patterning (etching)
- Drilling and plating vias
- Solder mask and silkscreen printing
- Final surface finishing (ENIG, HASL, etc.)
- Electrical testing and quality control
KingsunPCB ensures precise control at each stage to maintain quality and consistency.
6. Double Side Rigid PCB Design Guidelines and Best Practices
To ensure optimal performance:
- Place components strategically to balance both sides
- Keep high-speed signals short and well-shielded
- Use thermal reliefs around vias to ease soldering
- Maintain design for manufacturability (DFM) standards
KingsunPCB offers professional design review services to help customers avoid common design pitfalls.
7. Double Side Rigid PCB vs Single Side and Multilayer PCBs
| Feature | Single Side PCB | Double Side Rigid PCB | Multilayer PCB |
| Copper Layers | 1 | 2 | 4+ |
| Cost | Low | Moderate | High |
| Complexity Supported | Basic | Intermediate | Complex |
| Applications | Simple devices | Consumer/Industrial | High-end systems |
Double side rigid PCBs provide a balance between cost and functionality, ideal for medium-complexity projects.
8. Double Side Rigid PCB Pricing: Cost Breakdown and Influencing Factors
Typical pricing (as of 2025) for standard specs:
| Specification | Approx. Price (USD) |
| 100 pcs, 2-layer, FR4, 1.6mm | $0.90 – $1.50 per board |
| 500 pcs bulk order | $0.60 – $1.10 per board |
Factors affecting price:
- Board size and layer count
- Surface finish (e.g., ENIG vs HASL)
- Hole count and drill size
- Copper thickness
- Urgency of turnaround
KingsunPCB offers competitive pricing and bulk discounts for large-volume orders.
9. How to Choose a Reliable Double Side Rigid PCB Manufacturer
Look for manufacturers with:
- ISO and UL certifications
- IPC standard compliance
- In-house quality control and testing
- Fast lead times and technical support
At KingsunPCB, we meet all these criteria and support custom prototyping to mass production with consistency and speed.
10. Why Choose KingsunPCB for Double Side Rigid PCB Production
KingsunPCB is a China-based PCB manufacturer with over 15 years of experience in double side rigid PCB fabrication. We offer:
- One-on-one engineering support
- Rapid prototyping (as fast as 24 hours)
- RoHS-compliant, high-quality boards
- Transparent online quoting system
- Global shipping and customer service
11. Conclusion: Is a Double Side Rigid PCB the Right Choice for Your Project?
If your project requires reliable performance, moderate complexity, and cost efficiency, a double side rigid PCB is likely the best solution. It offers more design freedom than single-sided boards while avoiding the higher costs of multilayer options.
12. FAQs About Double Side Rigid PCBs
Q1: Are double side rigid PCBs suitable for high-frequency applications?
Yes, when properly designed with impedance control and high-quality materials.
Q2: Can I get double side rigid PCBs with gold finish?
Absolutely. Options like ENIG (Electroless Nickel Immersion Gold) are available at KingsunPCB.
Q3: What’s the typical lead time for standard double side rigid PCBs?
Standard orders: 5–7 working days; Quick turn: as fast as 24–48 hours.
Q4: Do you support international shipping?
Yes, KingsunPCB ships globally with DHL, FedEx, and UPS.