Large size PCB fabrication

Introduction to Oversized Printed Circuit Boards (PCBs)‌

‌1. Definition & Specifications‌
Large-size PCBs refer to circuit boards exceeding standard manufacturing dimensions, typically over 24×30 inches (610×762 mm). These boards are engineered for applications requiring high component density and extended functional integration.

‌2. Key Applications‌

• Industrial automation systems (e.g., factory control panels)
• Power grid monitoring equipment
• Aerospace avionics assemblies
• Medical imaging devices (MRI/PET scanners)
• Renewable energy infrastructure (solar/wind farm controllers)

‌3. Technical Advantages‌
✓ ‌High Integration‌: Consolidates multiple subsystems into a unified platform
✓ ‌Signal Integrity Optimization‌: Reduces inter-board connectors, minimizing EMI/ESD risks
✓ ‌Structural Rigidity‌: Engineered substrates enhance durability in harsh environments
✓ ‌Thermal Management‌: Allows strategic heat dissipation layout for high-power components

‌4. Manufacturing Challenges‌

‌5. Design Considerations‌

• ‌Material Selection‌: High-Tg FR-4 or ceramic-filled composites for thermal stability
• ‌Layer Stackup‌: Optimized impedance control through asymmetric layering
• ‌Fiducial Markers‌: 5+ global alignment points for precision assembly
• ‌Panelization‌: Breakaway tab design for post-production separation

‌6. Industry Standards Compliance‌

• IPC-2221B (Substrate Design)
• IEC 61191-6 (Large Assembly Requirements)
• MIL-PRF-31032 (High-Reliability Applications)

‌Conclusion‌

Oversized PCBs enable revolutionary system architectures where spatial efficiency and electrical performance converge. While requiring specialized manufacturing expertise, their implementation proves critical for next-generation industrial and infrastructure solutions.

KINGTON company capability on the large size PCB fabrication as below:

1 - 2 layer:  2000mm * 650mm

4 - 20 layers :   1250mm*700mm

The large size machine can meet different size PCB fabrication, if you have any request on such large size PCB , please send me email on sales02@kingtontech.com

This article title: Large size PCB fabrication

This article link: https://www.kingtontech.com/news/show/5153