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

Six-Layer PCB Impedance and Final Product Inspection Standards

Six-layer boards are widely used in high-speed signal transmission, differential signal applications, and high-frequency circuits. Impedance control and electrical performance are mandatory inspection items. This article explains industry-standard specifications for impedance, electrical testing, hi

Feb 26, 2026 1

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PCB layout requirements for PCIe interface

PCI-Express, abbreviated as "PCI-e," is a high-speed serial computer expansion bus standard. PCI-E belongs to the high-speed serial point-to-point dual-channel high-bandwidth transmission category, where connected devices are allocated dedicated channel bandwidth and do not share the bus bandwidth.

Feb 25, 2026 1

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FPC Process: Blind and Buried Vias, Lamination, Electroplating High-End Process

The performance and reliability of FPC circuit boards depend not only on design but also on manufacturing processes. Especially for high-end FPCs, processes such as blind and buried vias, precision lamination, and electroplating directly determine product quality. Many designers focus solely on desi

Feb 24, 2026 1

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How to balance impedance, cost, and yield for 4/6/8-layer impedance-controlled PCBs

**Stackup Design: The Soul of Controlled-Impedance PCBs** For the same target impedance, different stackups can lead to cost differences exceeding 30% and drastically different yields.---### **I. Five Core Principles of Stackup Design (Must Be Followed)** Regardless of the layer count, stackup des

Feb 06, 2026 1

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Complete Guide to PCB Ceramic Substrate Selection: From Materials to Processes, Master High-Reliability Design in One Article

**PCB Ceramic Substrates: The Core Carrier for High-Reliability, High-Thermal-Performance Designs** In the electronics industry, where power density is surging and thermal management pressures are intensifying, PCB ceramic substrates have become a core carrier for high-reliability, high-heat-dissip

Feb 05, 2026 1

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Fundamentals of Metal Substrate Structure Principles and Electrical/Thermal Performance

As a PCB engineer who routinely works with high-power, high-density boards, in projects like LED lighting, automotive electronics, and power modules, metal-core substrates are no longer optional materials but a necessity. Many designers new to metal-core substrates tend to treat them as "thickened s

Feb 04, 2026 1