1. Introduction Electromagnetic Compatibility (EMC) is a critical aspect of modern electronic design, ensuring that electronic devices operate as intended without causing or suffering from electromagnetic interference (EMI). Printed Circuit Board (PCB) design plays a pivotal role in achieving EMC compliance. Poor PCB layout can lead to signal integrity issues, radiated emissions, and susceptibility to…
Introduction Printed Circuit Boards (PCBs) and Printed Circuit Board Assemblies (PCBAs) are the backbone of modern electronics. As technology advances, the demand for high-complexity PCBs and PCBAs continues to grow. These boards are found in applications such as aerospace, medical devices, telecommunications, and high-performance computing, where reliability, precision, and performance are critical. Designing and manufacturing…
Introduction to PCB Panelization Printed Circuit Board (PCB) panelization is a critical manufacturing technique that involves arranging multiple PCB designs onto a single panel for production. This process has become an industry standard for optimizing manufacturing efficiency, reducing costs, and improving overall production quality in the electronics industry. Panelization allows manufacturers to produce dozens or…
Introduction to Electromagnetic Compatibility Electromagnetic Compatibility (EMC) represents a critical field in electrical engineering that ensures electronic devices and systems can operate as intended in their shared electromagnetic environment without causing or experiencing unacceptable interference. As our world becomes increasingly saturated with electronic devices—from smartphones to industrial control systems—the importance of EMC has grown exponentially….
Abstract Surface Mount Technology (SMT) has become the dominant method for assembling modern electronic circuits due to its efficiency, precision, and ability to support miniaturized components. An SMT production line consists of several key processes, including solder paste printing, component placement, reflow soldering, inspection, and cleaning. This paper explores the fundamental operations of an SMT…
1.Introduction With the continuous improvement of human requirements for living environment, the environmental issues involved in the current PCB production process are particularly prominent. At present, the topic of lead and bromine is the hottest; lead-free and halogen-free will affect the development of PCB in many aspects. Although at present, the changes in the surface…
The surface mount assembly process uses a stencil as a gateway to accurate, repeatable solder paste deposits. A stencil is a sheet or sheet of brass or stainless steel with a circuit pattern cut into it that matches the location pattern of the surface mount devices (SMDs) on the printed circuit board (PCB) where the…
Layout is one of the most basic work skills for PCB design engineers. The quality of routing will directly affect the performance of the entire system. Most high-speed design theories must ultimately be implemented and verified through layout. It can be seen that routing is crucial in high-speed PCB design. The following will analyze the…
When you are not used to a new set of PCB design tools, the large number of parameters that need to be set can be overwhelming. But you have to get familiar with it because, through its proper handling of controls, the layout tool can be made to fit your design methods and style. Here…
We always say that the PCB is your critical component. With the growth of new technology-centric industries, this is true. One example in particular is lighting applications. LED lighting found in vehicles, urban infrastructure, and warehouses is evolving into a nuanced application that strives to bring precise brightness and color for perfect aesthetics. When it…
Water is bad news for an operating PCBA. Even small amounts of moisture can cause your board to fail, and avoiding moisture requires the best possible protection methods to be used. Even with this security, your board may still be vulnerable, as several PCB failure modes exist. To build a comprehensive defense, we first need…
Traditional tools for debugging PCB include: time domain oscilloscope, TDR (time domain reflectometry) oscilloscope, logic analyzer, and frequency domain spectrum analyzer, but these means cannot give a data reflecting the overall information of PCB board. PCB board is also called printed circuit board, printed wiring board, abbreviated as printed board, English abbreviation PCB (printed circuit…
The entire power electronics industry, including RF applications and systems involving high-speed signals, is moving towards solutions that provide increasingly complex functions in increasingly smaller spaces. Designers face increasingly demanding challenges in meeting system size, weight and power requirements, including effective thermal management, which starts with the design of the PCB. Highly integrated active power…
1.Consider the choice of component package Throughout the schematic drawing stage, you should consider the component package and land pattern decisions that need to be made in the layout stage. Here are some suggestions for considering when selecting components based on component packages. Remember that the package includes the electrical pad connections and mechanical dimensions…
Introduction Printed Circuit Boards (PCBs) are essential components in nearly all modern electronic devices, from smartphones to industrial equipment. Many PCBs contain small amounts of precious metals, including gold, which is used for its excellent conductivity and corrosion resistance. While the quantity of gold in a single PCB may be small, recovering gold from multiple…
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