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Annular Ring Via in PCB

Annular rings are crucial for reliable PCB electrical connections. Proper sizing, understanding issues like tangency and breakout, and best practices ensure optimal performance and reliability in electronic circuits.

By PCBX
2024/09/18
What is a Via in PCB?

Vias—blind, buried, and through-hole—are essential in multi-layer PCBs, enabling signal and power transfer between layers. Covering techniques like tenting and plugging with solder masks enhance PCB reliability and performance, crucial for compact designs.

By PCBX
2024/09/11
How to Test a PCB Board with a Multimeter

A multimeter is vital for electronics, measuring voltage, current, and resistance. This article covers its basic functions, settings, and guides you on PCB testing, ensuring accurate and safe troubleshooting.

By PCBX
2024/08/29
What is PCB in electronics?

PCBs (Printed Circuit Boards) are crucial in electronics, providing mechanical support and electrical connections via etched copper traces on a non-conductive substrate. They ensure signal integrity, heat dissipation, and contribute to compact, reliable, cost-effective designs preferred in electronics manufacturing.

By PCBX
2024/08/28
Essential Files for PCB Fabrication

Creating a PCB involves detailed files like Gerber, NC Drill, BOM, Centroid, Readme, and Dimension Drawings. These files ensure precise design communication and minimize manufacturing errors.

By PCBX
2024/08/28
What is PCB Conformal Coating?

PCB conformal coating is a thin, non-conductive film applied to circuit boards to protect them from moisture, dust, and temperature variations. Made from materials like acrylics and silicones, it provides insulation and corrosion resistance. Application methods include brushing, spraying, dipping, and vapor deposition.

By PCBX
2024/08/22
PCB Surface Coating Functions and Selection Principles

Copper in PCBs oxidizes, causing solder defects and reducing product life. Surface coatings like HASL, OSP, ENIG, and ENEPIG prevent this, ensuring solderability and reliability. Choosing the right coating based on application needs significantly improves the quality, reliability, and lifespan of products.

By PCBX
2024/08/21
PCB Side Plating

PCB side plating, or edge plating, involves copper along PCB edges, enhancing connectivity, conductivity, shock protection, and assembly, especially for small boards. Used in Wi-Fi and Bluetooth modules, it improves signal quality and EMC. Limitations include necessary design gaps and exclusion of V-cuts.

By PCBX
2024/08/21
Key Difficulties and Tips for Backplane PCB Fabrication

Backplane PCBs support functional boards, distribute power, and transmit signals. Increased IC complexity demands more layers and high performance, creating challenges in alignment, drilling, electroplating, ICD issues, and stub management. Tips include precise alignment control, advanced drilling and plating techniques, and maintaining stub lengths below 0.25mm for optimal signal quality.

By PCBX
2024/08/21