2 Layer Flexible Multilayer PCB Assembly For digital LED

2 Layer Flexible PCB Assembly for LED

♦ ​​What is Flexible PCB Assembly?​

​​Flexible PCB Assembly (Flex PCBA)​​ is the process of mounting and soldering electronic components onto a ​​flexible printed circuit board (Flex PCB)​​—a bendable, lightweight alternative to traditional rigid PCBs. These assemblies are used in applications where flexibility, space savings, or dynamic movement is required.

✔ ​​Bendable & Lightweight​​ – Can be folded, twisted, or shaped to fit tight spaces.
✔ ​​High-Density Interconnects​​ – Supports complex circuitry in compact designs.
✔ ​​Durability​​ – Resists vibration, shock, and mechanical stress better than rigid PCBs.
✔ ​​Thin & Light​​ – Ideal for wearable tech, medical devices, and aerospace.

♦ ​​Flexible PCB Assembly Process​?​

​​1. Flex PCB Fabrication​​

• • • Made from ​​polyimide (PI)​​ or ​​PET​​ materials (instead of rigid FR4).
    • Layers include:
      • ​​Conductive traces​​ (copper)
      • ​​Adhesive layers​​
      • ​​Coverlay​​ (protective film, like solder mask)

​​2. Solder Paste Application (SMT for Flex PCBs)​​

• • • A ​​laser-cut stencil​​ applies solder paste to flexible PCB pads.
    • ​​Challenges:​​
      • Flex PCBs are thin and may warp during soldering.
      • Requires precise temperature control.

​​3. Component Placement​​

• • • ​​Pick-and-place machines​​ mount ​​SMD components​​ (resistors, ICs, etc.).
    • ​​Critical:​​
      • Avoid placing large components near bend areas.
      • Use ​​stiffeners​​ (rigid supports) where needed.

​​4. Reflow Soldering​​

• • • ​​Lower peak temperatures​​ (~230–250°C) than rigid PCBs to avoid damaging polyimide.
    • ​​Controlled heating/cooling​​ prevents warping.

​​5. Through-Hole Assembly (If Needed)​​

• • • ​​Flex-rigid PCBs​​ may have plated through-holes (PTH).
    • ​​Manual soldering​​ is often required for THT parts.

​​6. Inspection & Testing​​

• • • ​​Automated Optical Inspection (AOI)​​ – Checks for misalignment or solder defects.
    • ​​X-ray Inspection (AXI)​​ – Examines hidden joints (e.g., under BGAs).
    • ​​Flex Testing​​ – Verifies durability under bending/stretching.

​♦ ​​​​Types of Flexible PCB Assemblies​​?​

DQS Electronic Group is one of the leading EMS company in China, we provide PCB design, PCB manufacturing, PCB assembly service and testing. Welcome send us your Gerber file to get free quotation. Our email: sales@dqspcba.com

♦ Technical Parameters

PCBA Prototype	Industrial Control PCBA	Telecom PCBA	Medical PCBA
Automotive PCBA	Consumer Electronic PCBA	LED PCBA	Security PCBA

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..