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

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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.

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Dec 03, 2025 1

Why Do Some People Call PCBA PCA

The terms PCBA and PCA are often used interchangeably in the electronics manufacturing industry, leading to confusion for those new to the field. To understand why this happens, it is essential to first clarify the full definitions of both acronyms and the context in which they are used. PCBA stands

May 29, 2026 421

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Suitable Scenarios for Rogers PCB Materials

Rogers materials are high-frequency laminates renowned for low dielectric constant (Dk), ultra-low dissipation factor (Df), and excellent thermal/mechanical stability, making them the gold standard for high-frequency, high-speed, and millimeter-wave applications where standard FR-4 fails. Unlike FR-

May 28, 2026 41

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Core Principles and Full-Scenario Design of PCB Shielding Technology

If decoupling technology suppresses noise from "within the power supply," shielding technology blocks noise propagation from the "external environment." The two complement each other, forming the twin pillars of PCB noise reduction. In high-speed, RF (Radio Frequency), and high-EMI-sensitive scenari

May 28, 2026 351

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Factors Affecting the Glass Transition Temperature (Tg) of PCB Substrates

Factors Affecting the Glass Transition Temperature (Tg) of PCB SubstratesThe Glass Transition Temperature (Tg) of Printed Circuit Board (PCB) substrates is a critical metric indicating the temperature at which the material transitions from a rigid glassy state to a rubbery, high-elastic state. The T

May 27, 2026 71

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Service Life and Anti-Oxidation Duration of Corrosion-Resistant Coated PCB

Corrosion-resistant coated printed circuit boards are widely adopted in harsh industrial, marine, outdoor and chemical exposure environments, and their anti-oxidation service life is mainly determined by coating material type, coating thickness, surface treatment process, operating ambient condition

May 27, 2026 286

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Is Your IoT 4-Layer PCB Failing EMC Certification Repeatedly?

Achieving First-Pass EMC Compliance: It’s Not About Shields, It’s About Ground PlanesThe key to one-pass EMC compliance for IoT 4-layer boards is not adding metal shields, but ensuring solid ground planes + digital/analog partitioning + local filtering. Blindly adding shields increases costs by 20%

May 26, 2026 526

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