• What is a Single-Sided PCB?

• A Single-Sided PCB (Printed Circuit Board) is the most basic type of PCB, featuring a single layer of conducting material—typically copper—on one side of an insulating substrate (such as FR4, CEM1, or phenolic resin). All the electronic components are mounted on one side, and the conductive pathways are etched on the other.
• Key Features:

• One conductive layer

• Components on one side only

• Simple design and low cost

• Ideal for low-density, low-power devices

  Applications:

  Single-sided PCBs are commonly used in:

  • LED lighting systems

  • Power supplies

  • Calculators

  • Printers

  • Coffee makers and household appliances

  • Consumer electronics (radios, toys, etc.)

    Advantages:

    • Cost-effective: Lower manufacturing costs than multi-layer boards.

    • Easy to produce and repair

    • Well-suited for mass production

    • Best for simple circuits with fewer components

      Capability

      Base material:Aluminum/Copper/Iron Alloy
      Thermal Conductivity (dielectrial layer): 0.8, 1.0, 1.5, 2.0, 3.0 W/m.K.
      Board Thickness: 0.5mm~3.0mm(0.02″~0.12″)
      Copper thickness: 0.5 OZ, 1.0 OZ, 2.0 OZ, 3.0 OZ.
      Outline: Routing, punching, V-Cut
      Soldermask: White/Black/Blue/Green/Red Oil
      Legend/Silkscreen Color: Black/White
      Surface finishing: Immersion Gold, HASL,ROHS
      Max Panel size: 600*300mm
      Packing: Vacuum/Plastic bag
      Samples L/T: 4~6 working Days
      MP L/T: 5~7 working Days

Double-Sided PCB (Double Layer PCB)

has copper conductive layers on both sides of the board. Electrical connections between the top and bottom layers are made using vias (holes plated with conductive material), allowing for more complex and compact circuit designs compared to single-sided PCBs.

Key Features:

• Copper traces on both sides

• Components can be mounted on either or both sides

• Interlayer connection via plated-through holes (PTH)

• Supports more complex circuits

  Applications:

  Double-sided PCBs are widely used in:

  • Industrial control systems

  • LED lighting systems (high-performance)

  • Power supplies and converters

  • Automotive electronics

  • Instrumentation and testing equipment

  • Consumer electronics (smartphones, audio systems)

    Advantages:

    • Increased circuit density – more components in less space

    • More routing options – efficient design layout

    • Cost-effective for moderate complexity designs

    • • Increased circuit density – more components in less space

      • More routing options – efficient design layout

      • Cost-effective for moderate complexity designs

      • Versatile – supports both through-hole and surface-mount technology (SMT

        Versatile – supports both through-hole and surface-mount technology

        Capability

        Base material:Aluminum/Copper/Iron Alloy
        Thermal Conductivity (dielectrial layer): 0.8, 1.0, 1.5, 2.0, 3.0 W/m.K.
        Board Thickness: 0.5mm~3.0mm(0.02″~0.12″)
        Copper thickness: 0.5 OZ, 1.0 OZ, 2.0 OZ, 
        Outline: Routing, punching, V-Cut
        Soldermask: White/Black/Blue/Green/Red Oil
        Legend/Silkscreen Color: Black/White
        Surface finishing: Immersion Gold, HASL,ROHS
        Max Panel size: 200*400mm
        Packing: Vacuum/Plastic bag
        Samples L/T: 4~6 working Days
        MP L/T: 4~6 working Days

What is a Multilayer PCB (4-Layer PCB)

A Multilayer PCB is a printed circuit board with more than two copper layers. A 4-layer PCB is one of the most commonly used multilayer configurations and consists of four layers of conductive copper separated by insulating material (prepreg and core). These layers are stacked together and bonded under high pressure and temperature.

🧱 4-Layer PCB Structure (Typical Stack-Up):

1. Top Layer (Signal Layer)

2. Inner Layer 1 (Ground Plane)

3. Inner Layer 2 (Power Plane)

4. Bottom Layer (Signal Layer)

This configuration allows for optimized power delivery, signal integrity, and EMI control.

✅ Key Features:

• Compact design: Supports high component density

• Signal integrity: Controlled impedance and reduced crosstalk

• Power & ground planes: Improve stability and reduce noise

• Better thermal management than double-sided boards

  📦 Common Applications:

  4-layer PCBs are widely used in:

  • High-speed digital circuits

  • IoT devices and embedded systems

  • Advanced consumer electronics (smartphones, tablets)

  • Communication equipment (routers, modems)

  • Medical devices

  • Industrial and automotive control systems

  • Aerospace and defense electronics

    🌟 Advantages:

    • Supports complex circuits and high-speed signals

    • Excellent EMI/RFI shielding

    • Improved power distribution with dedicated planes

    • Reduced board size compared to 2-layer alternatives

    • Ideal for HDI (High-Density Interconnect) designs

      Capability

      Base material:Aluminum/Copper/Iron Alloy
      Thermal Conductivity (dielectrial layer): 0.8, 1.0, 1.5, 2.0, 3.0 W/m.K.
      Board Thickness: 0.5mm~3.0mm(0.02″~0.12″)
      Copper thickness: 0.5 OZ, 1.0 OZ, 2.0 OZ, 
      Outline: Routing, punching, V-Cut
      Soldermask: White/Black/Blue/Green/Red Oil
      Legend/Silkscreen Color: Black/White
      Surface finishing: Immersion Gold, HASL,ROHS
      Max Panel size: 200*300mm
      Packing: Vacuum/Plastic bag
      Samples L/T: 6~8 working Days
      MP L/T: 6~8 working  Days

🔧 What is a Metal Core PCB (MCPCB)?

A Metal Core PCB (MCPCB), also known as a Thermal PCB or Metal Backed PCB, is a type of printed circuit board that uses a metal base material (instead of standard FR4) to enhance thermal conductivity and dissipate heat more efficiently. The most common metal cores used are aluminum, copper, or steel alloy.

These boards are ideal for high-power applications where traditional PCBs cannot effectively manage heat.

🏗️ Typical Structure of a Metal Core PCB:

1. Copper Circuit Layer – standard etched copper layer for circuit routing

2. Dielectric Layer – thermally conductive but electrically insulating

3. Metal Core Base – usually aluminum (cost-effective), copper (high performance), or stainless steel (for rigidity)

Optional: A solder mask and silkscreen layer may be added on top

⚙️ Key Features:

• Excellent thermal conductivity

• Higher current carrying capacity

• Better mechanical strength

• Enhanced reliability and durability in harsh environments

  🔋 Common Applications:

  • LED lighting systems (bulbs, tubes, panels, automotive headlights)

  • Power converters

  • Electric vehicle (EV) components

  • Motor controllers

  • Solar power equipment

  • High-frequency RF applications

  • Telecom base stations

    ✅ Advantages:

    • Efficient heat dissipation protects components

    • Reduces the need for additional heat sinks

    • Improves energy efficiency and lifespan of devices

    • Withstands high mechanical stress and vibration

    • Ideal for compact, high-power electronic designs

      ⚠️ Considerations:

      • More expensive than FR4 boards

      • Heavier than standard PCBs (depending on the metal used)

      • Requires specialized fabrication and drilling processes

      • Not ideal for multi-layer complex designs unless combined with hybrid materials

        📌 Why Offer Metal Core PCBs?

        If you’re a PCB manufacturer, adding Metal Core PCBs to your product line allows you to serve high-demand industries like LED lighting, automotive, renewable energy, and industrial power systems. They provide exceptional thermal performance, making them essential for modern high-power applications

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