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

High-Precision PCB Design Essential: Exploring the Principles and Layout Essentials of Four-Wire Kelvin Connection

In PCB design, the four-wire power interface combined with Kelvin connection (also known as four-terminal connection) is a core technique for achieving high-precision power supply or current/voltage measurement. Its primary purpose is to eliminate voltage errors caused by wire resistance and contact

Jan 03, 2026 1

Detail

PCB Boards for Industrial Internet of Things (IIoT) Gateways

Industrial Internet of Things (IIoT) gateways serve as the crucial bridge between various industrial devices, sensors, and the cloud, enabling seamless data communication and management across the industrial network. The PCB boards designed for IIoT gateways are engineered with high - end capabiliti

Dec 30, 2025 1

Detail

Cold Solder Joint Troubleshooting: Chengchi Electronics Repair Practical Guide

In your electronics projects, have you encountered unstable connections? Cold solder joints might be the culprit. These faulty connections can lead to intermittent failures or complete circuit breakdowns. In this guide, we will walk you through identifying cold solder joints, repairing them, prevent

Dec 29, 2025 1

Detail

PCB Mechanical Testing

PCB Mechanical Testing is a set of standardized evaluations designed to assess a printed circuit board’s ability to withstand physical stress, deformation, and environmental wear—critical for ensuring reliability in applications where PCBs face mechanical forces (e.g., vibration in automotive, bendi

Dec 27, 2025 1

Detail

Efficient Preparation Solution for PCB Samples

As the core carrier of electronic manufacturing, the internal structural quality of PCBs directly determines the reliability of end products. Metallographic sectioning inspection serves as the most rigorous "quality X-ray" in the PCB industry, unlocking the "hidden truth" of circuit boards step by s

Dec 27, 2025 1

Detail

Rigid PCB Durable Circuitry for Fixed Applications

Rigid PCBs (Rigid Printed Circuit Boards) are circuit boards with a rigid, inflexible substrate—typically made of FR-4 (fiberglass-reinforced epoxy resin), ceramic, or metal-core materials—designed to maintain their shape in fixed electronic assemblies. Unlike flexible PCBs (which bend to fit tight

Dec 26, 2025 1

Detail

Save Time

Save Money

Save Labour

Free From Worry

Free From Worry