A rigid printed circuit board (PCB) made from FR-4 material is the foundational building block of modern consumer electronics and industrial power systems. It provides mechanical support for electronic components while enabling precise electrical connections through conductive traces. At Kunshan Ruiheng Electronic Technology Co., Ltd., we specialize in manufacturing high-reliability rigid PCBs that meet global standards for performance, consistency, and durability.
This specific 4-layer rigid PCB is engineered for demanding applications in power electronics such as inverters, DC-DC converters, and motor drives. Its design ensures superior current handling, thermal stability, and long-term reliability under harsh operating conditions.
Manufactured using our proprietary thick-copper etching and plating technologies, this PCB can be scaled up to 12 oz copper thickness—ideal for high-power applications where robustness and low resistance are critical.
“This PCB has been successfully implemented in multiple high-efficiency power modules used by leading manufacturers in the Philippines, including Emerson. Its combination of thermal resilience, uniform copper distribution, and surface finish quality makes it ideal for mission-critical power electronics.”
Whether you're developing a new power supply unit, an energy management system, or a high-current switching module, this rigid PCB offers the structural and electrical characteristics needed for stable, efficient operation—even in extreme environments.
| Application Area | Key Benefit |
|---|---|
| Power Supplies | Handles high current without overheating due to uniform 4 oz copper layers. |
| Motor Drives | Withstands repeated thermal cycling thanks to high-Tg FR-4 substrate. |
| Industrial Inverters | Maintains impedance control for stable output waveforms. |
| EV Charging Units | Supports fine-line routing for high-frequency switching circuits. |
As a trusted B2B manufacturer based in China’s PCB hub, Kunshan Ruiheng Electronic Technology Co., Ltd. delivers precision-engineered solutions tailored to your exact specifications—from prototype samples to full production runs. Our commitment to quality, technical expertise, and global compliance ensures your next project benefits from reliable, scalable, and future-proof PCB technology.
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four-layer thick copper PCB design
power electronics PCB thermal optimization
thick copper PCB minimum trace spacing
ENIG surface finish benefits
high Tg FR-4 applications
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high-tg fr-4 pcb
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power electronics pcb
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impedance controlled pcb
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yellow cover film for FPC
high-frequency flexible PCB shielding
EMI protection in flexible circuits
FPC cover film selection guide
Ruiheng PCB
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Ruiheng Electronic
rigid PCB
flexible PCB
PCB selection
consumer electronics
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thick copper layer etching
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fine pitch PCB design
high density PCB assembly
mechanical stress resistance
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