In many circuits, the system crystal oscillator operates at a high clock frequency, which produces strong harmonic interference. These harmonics not only propagate through the input and output lines but also radiate through space. Therefore, if the PCB layout of the crystal oscillator is not designed properly, strong spurious radiation problems can easily occur. Once...
Why EMC Matters in PCB Design Electromagnetic Compatibility (EMC) is a key requirement in modern PCB design, ensuring that electronic systems operate reliably without generating or being affected by electromagnetic interference (EMI). Proper PCB layout—especially GND routing, trace spacing, and layer design—plays a decisive role in reducing ESD (Electrostatic Discharge) and improving overall signal integrity....
Why PCB Pad Soldering Process Matters In PCB manufacturing, the pad surface finish or soldering process directly affects component solderability, electrical performance, and long-term reliability.Different processes offer varying degrees of oxidation resistance, flatness, and cost efficiency, making proper selection essential for every PCB design project. This article categorizes and compares the most common PCB pad...
The Importance of Via Placement in PCB Design In PCB design, via positioning plays a crucial role in ensuring electrical performance, manufacturing reliability, and signal integrity. Improper via placement—especially placing vias directly on component pads—can lead to soldering defects, electrical noise, and higher production costs. This article explains why vias should be staggered from pad...
With the rapid development and widespread application of 5G technology, the field of wireless communication has ushered in unprecedented changes. In 5G networks, signal quality monitoring and evaluation are crucial for ensuring communication stability and reliability. Among them, Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ) are two key performance indicators that play an...
Power supply noise is a common problem on high-frequency PCBs . This interference is usually caused by electromagnetic fields generated when current flows across the PCB. Electromagnetic fields are generated when current flows through power or ground lines on the PCB. If these fields interact with other components on the PCB, they can produce noise, thus affecting circuit performance....
1. What Is SMT Assembly? Surface Mount Technology (SMT) is one of the most widely used methods in modern PCB assembly. Unlike through-hole assembly, where component leads are inserted into drilled holes, SMT components are directly mounted onto the surface of a bare printed circuit board (PCB). This method simplifies the PCB manufacturing process, reduces...
With the rapid development of today’s electronics industry, electronic products are becoming smaller, lighter, and more complex. To meet this demand, engineers have adopted Surface Mount Technology (SMT) — an advanced PCB assembly method that allows components to be mounted directly onto the surface of the printed circuit board. If you’ve ever looked at the...
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When designing printed circuit boards (PCBs), a well-structured approach and attention to detail are essential to ensure functionality and avoid potential design errors. Here are some key PCB design tips based on practical experience: 1. Pay Attention to Pin Definitions and Package Names in the Schematic Library When creating the schematic library, ensure that each schematic pin corresponds correctly...
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