Two Layer PCB Board for Prototype and Mass Products

♦ What is a Two-Layer (Double-Sided) PCB?

A ​​Two-Layer PCB (Double-Sided PCB)​​ is a printed circuit board with ​​two conductive copper layers​​—one on the ​​top side​​ and one on the ​​bottom side​​—connected by ​​vias​​ (plated holes). It offers more routing flexibility than a single-layer PCB while remaining cost-effective for mid-complexity designs.

Key Features:​​

✔ ​​2 Conductive Layers​​ – Copper traces on ​​both sides​​ of the board.
✔ ​​Vias for Interconnections​​ – Plated holes allow electrical connections between layers.
✔ ​​Better Routing Space​​ – More flexibility than single-layer PCBs.
✔ ​​Moderate Cost​​ – Cheaper than multi-layer PCBs but more expensive than single-layer.

♦ ​​​​​​Structure of a Two-Layer PCB​​:​

1. 1. ​​Substrate (Base Material)​​ – Typically ​​FR4​​ (fiberglass epoxy).
   2. ​​Top Copper Layer​​ – Contains traces and components.
   3. ​​Bottom Copper Layer​​ – Additional routing space.
   4. ​​Solder Mask​​ – Protective coating (usually green) to prevent shorts.
   5. ​​Silkscreen​​ – Printed labels for component placement.
   6. ​​Vias​​ – Plated holes connecting top and bottom layers.

♦ ​​​​Advantages of Two-Layer PCBs​:​

✅ ​​More Routing Space​​ – Better for moderately complex circuits.
✅ ​​Improved Signal Integrity​​ – Ground planes reduce noise (if designed properly).
✅ ​​Cost-Effective for Mid-Range Designs​​ – Balances performance and affordability.
✅ ​​Widely Used​​ – Suitable for many consumer and industrial applications.

♦ Technical Parameters

♦ One-Stop PCBs Solution

PCB Prototype	Felx PCB	Rigid-Flex PCB	Aluminium PCB
Heavy Copper PCB	HDI PCB	High Frequency PCB	High TG PCB

♦ Advantages of DQS Team

1. On-time Delivery:

• • Owned PCBA factories 15,000㎡
  • 13 fully automatic SMT lines
  • 4 DIP assembly lines

2. Quality Guaranteed:

• • IATF, ISO, IPC, UL standards
  • Online SPI, AOI, X-Ray Inspection
  • The qualified rate of products reach 99.9%

3. Premium Service:

• • 24H reply your inquiry
  • Perfect after-sales service system
  • From prototype to mass production

DQS Electronic is located in Shenzhen, focusing on PCB Layout Design, PCB Fabrication, Electronic Components Sourcing, SMT, PCB Assembly and Testing. We are a one-stop EMS electronic manufacturing company committed to providing global customers with rapid prototyping and mass production.

Our products include single, double, multi, high frequency, aluminum base, copper base, FR-4 and other high precision circuit boards.

We have over 10 years of experience in serving many domestic and foreign brand customers in a wide range of fields such as Medical, Automotive, Industrial Automation, Artificial Intelligence, Smart Home, Security, Power and Communications, etc..