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

PCBA Repair Environmental Requirements and Handling

PCBA (Printed Circuit Board Assembly) repair processes are subject to stringent environmental requirements designed to minimize harm to ecosystems, human health, and comply with global regulatory standards. The core principle of these requirements is to control and reduce the use of hazardous substa

May 11, 2026 522

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Integrated PCB+SMT DFM Quality Control for Multi-Layer Boards: Achieving Zero Voids and Zero Bridges

Integrated PCB+SMT DFM Quality Control for Multi-Layer Boards: Achieving Zero Voids and Zero BridgesThe Challenge:During mass SMT assembly of new energy six-layer PCBs, severe defects emerged—including component tombstoning, cold solder joints (voids), solder bridging, and chip placement failures. R

May 09, 2026 11

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PCB Mechanical Performance Testing

PCB mechanical performance testing is a critical process to evaluate the structural integrity and durability of printed circuit boards under various mechanical stresses they may encounter during manufacturing, assembly, transportation, and actual operation. These tests are designed to simulate real-

May 09, 2026 182

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Q: Basic PCB Schematic Normativity Checklist?

Question: I just took over a PCB project design. Although many schematics appear finished with no software errors, functional anomalies, incorrect pin definitions, and package mismatches frequently occur after board fabrication. From an engineering practice perspective, what items should be prioriti

May 08, 2026 129

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PCBA Test Defective Product Handling Process

The handling of defective PCBA (Printed Circuit Board Assembly) products during testing is a critical process that ensures product quality, reduces waste, and optimizes production efficiency. When a defective unit is identified during testing, the first step is to conduct a preliminary isolation to

May 08, 2026 495

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Strategies for Improving PCB Solder Joint Quality — Full-Dimensional Optimization of Materials, Processes, Design, and Control

Improving PCB solder joint quality is a systematic engineering endeavor that requires a coordinated effort across five key dimensions: material selection, process optimization, design standards, process control, and personnel skills. This spans the entire workflow from PCB design and component procu

May 07, 2026 123

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