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sales@kingtontech.comLarge size PCB fabrication
Date：2025-02-21 Hits: 6
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
| Panel Warping | Advanced laminate materials (e.g., polyie blends) |
| Alignment Errors | Laser-guided registration systems |
| Copper Uniformity | Dynamic electroplating controls |
| Testing Complexity | Modular boundary-scan architecture |
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
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