domestic pcb manufacturer-Shenzhen Chengchi Circuit Technology Co., Ltd.

The Function and Principle of PCB Embedded Copper Blocks

In modern electronic product design, heat dissipation in Printed Circuit Boards (PCBs) has always been a core concern for engineers. As the integration density of electronic components continues to rise and chip power density climbs steadily, traditional cooling solutions are increasingly unable to

Jun 12, 2026 343

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How to Protect Automotive 6-Layer PCBs Against Thermal Stress: Solving Failure Issues Under High-Low Temperature Cycles

Automotive electronic devices operate long-term in complex temperature environments. Equipment within the engine compartment must withstand high temperatures of 125°C, while Electronic Control Units (ECUs) exposed to winter outdoor conditions can drop to -40°C. The diurnal temperature variation and

Jun 11, 2026 451

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Core Formulas and Basic Parameters for Impedance Calculation of 4-Layer PCBs

In the design of high-speed circuits, RF, communications, and precision industrial control products, impedance control in 4-layer PCBs is a core factor determining signal integrity. As electronic products trend toward higher frequencies, smaller sizes, and faster speeds, relying solely on empirical

Jun 10, 2026 93

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Top 10 Beginner Mistakes in PCB Design

Drawing a PCB isn't hard to get into, but it’s incredibly easy to make mistakes. Many people feel like they’ve mastered board design once they can import a schematic and generate Gerber files. But then the boards come back from fabrication—some whistling with noise, others suffering from interferenc

Jun 09, 2026 376

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Multilayer PCB Power Integrity Design

Multilayer PCBs are widely used today in high-speed digital circuits, high-performance computing, communication base stations, automotive electronics, and aerospace applications. Power Integrity (PI) design is a core factor determining whether a multilayer PCB can operate stably and reliably. The es

Jun 06, 2026 138