In PCB production, the design of circuit boards is a very time-consuming and meticulous process that cannot tolerate any carelessness. In the process of PCB design, there is an unwritten rule that wiring should avoid using right angle wiring. So why is there such a rule? This is not a whim of designers, but a thoughtful consideration based on multiple factors.
Firstly, let’s clarify what right angle routing is. Right angle routing refers to the routing shape on a circuit board presenting a clear right angle or 90 degree angle. In early PCB manufacturing, right angle routing was not uncommon. However, with the development of technology and the increasing demand for circuit performance, designers have gradually avoided using right angle wiring and are more inclined to use circular arcs or 45 ° angled shapes.
Because in practical applications, right angle routing can easily cause signal reflection and interference. In signal transmission, especially in the case of high-frequency signals, right angle wiring can generate electromagnetic wave reflections, which may lead to signal distortion and data transmission errors. In addition, the current density at the right angle varies greatly, which may cause signal instability and thus affect the performance of the entire circuit.
In addition, boards with right angle wiring are more prone to processing defects, such as solder pad cracks or plating issues. These defects may lead to a decrease in the reliability of the circuit board, and even cause malfunctions during use. Therefore, considering these reasons, it is important to avoid using right angle wiring when designing PCBs!