High frequency PCB Manufacturer-Shenzhen Chengchi Circuit Technology Co., Ltd.

Welcome to Shenzhen Chengchi Circuit Technology Co., Ltd official website

Shenzhen Chengchi Circuit Technology Co., Ltd.

Shenzhen Chengchi Circuit Technology Co., Ltd.

Shenzhen Chengchi Circuit Technology Co., Ltd.

Shenzhen Chengchi Circuit Technology Co., Ltd.

Shenzhen Chengchi Circuit Technology Co., Ltd.

Service Hotline +8618129931046 Mr. Liao

EN

Home > News >

Dec 03, 2025 1

Challenges in Impedance Control for 4-Layer PCBs & Multilayer PCB Solutions

In high-speed circuits, RF modules, and products integrating power and signal lines, 4-layer PCBs have become the mainstream choice for industrial controls, communication equipment, and smart home hardware. This is due to their balanced routing space, electromagnetic shielding capabilities, and cost

Jun 15, 2026 274

Detail

The Challenges of Impedance Control in 4-Layer PCBs and Mitigation Strategies for Multilayer Designs

In high-speed circuits, RF modules, and products integrating power and signal lines, 4-layer PCBs have become the mainstream choice for industrial control, communication equipment, and smart home hardware. They offer a balanced combination of routing space, electromagnetic shielding capability, and

Jun 13, 2026 380

Detail

High-Frequency Multilayer PCB Low-Loss Dielectric Materials

High-frequency multilayer PCBs demand low-loss dielectric materials to ensure signal integrity at microwave and millimeter-wave frequencies, typically defined as materials with a dielectric constant (Dk) below 7 and a dissipation factor (Df) under 0.005. These materials minimize signal attenuation,

Jun 13, 2026 307

Detail

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

Detail

Prevention Methods for Thermal Cycling Bending Failure of Thin PCBs

Thin PCBs (typically with a thickness below 0.8mm) are prone to bending failure during thermal cycling tests due to their low structural rigidity and inconsistent thermal expansion coefficients of layered materials, and this failure can be effectively prevented through material optimization, structu

Jun 12, 2026 177

Detail

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

Detail

Save Time

Save Money

Save Labour

Free From Worry

Free From Worry