1. Overview Managing chip voltage drop is crucial for ensuring the stable operation of integrated circuits (IC), involving multiple levels such as the printed circuit board (PCB), packaging, and within the chip itself. Specific recommended metrics vary based on application domain, process node, chip type, etc., but here are some general guidelines and reference metrics: … Read more
For beginners, electromagnetic interference (EMI) in microcontroller circuit design may not be a primary concern, but for an electronic engineer, the implications are significant. It not only affects the microcontroller’s ability and accuracy in control but also impacts the company’s competitiveness in the industry. We primarily address EMI design from both hardware and software perspectives. … Read more
The direction of the board entering the wave soldering process should be indicated on the PCB, and the entry direction should be reasonable. If the PCB can enter from two directions, a double arrow entry indication should be used. (For reflow soldering, consider using tooling fixtures to determine the direction of passing through the reflow … Read more
Ah, when it comes to Multisim, this is an “old friend” in the field of electronic engineering. Many students learning circuits will recall their days dominated by a bunch of resistors, capacitors, and inductors upon hearing the name Multisim. So today, let’s talk about—What is Multisim, what can it do, and why is it so … Read more
In the PCB design community, there is an “invisible hero” that is often overlooked by beginners — it may seem like an inconspicuous little dot, but it can transform a product from “frequent rework” to “one-time success,” and from “cost overruns” to “efficient mass production.” This is the Mark point. Today, let’s discuss in simple … Read more
Voltage withstanding refers to the maximum voltage that a PCB can withstand under specified conditions without experiencing breakdown. Breakdown occurs when the voltage exceeds a certain limit, causing the insulating material of the PCB to lose its insulating properties, resulting in a sudden increase in current and circuit failure. Voltage withstand control is a key … Read more
After publishing the teardown article, I often receive messages from friends asking how to learn electronic design, how to learn microcontrollers, and so on. Many people feel confused and are unsure about what they should learn. Some people know what they need to learn but don’t know where to start. Only a very few can … Read more
Altium Designer 19 PCB Design Official Guide: Advanced Practice 📘 Altium Designer 19 PCB Design Official Guide (Advanced Practice) – Altium China Technical Support Center In today’s rapidly evolving landscape of Electronic Design Automation (EDA) and Printed Circuit Board (PCB) design technology, a book that combines theoretical depth with practical experience is particularly valuable and … Read more
In complex PCB design, there is a seemingly insignificant yet crucial “small role”—the jumper. It acts as a “bridge” in the circuit, silently connecting various components and solving layout challenges. But did you know? Improper use of jumpers can lead to the collapse of the entire circuit! Today, we will unveil the classification, functions, and … Read more
Copper pouring is an important aspect of Jialichuang’s high-density PCB design. The significance of copper pouring lies in reducing ground line impedance, enhancing anti-interference capability; lowering voltage drop, improving power efficiency; and connecting with the ground line to reduce loop area. It is advisable to use cross pads on copper pouring surfaces We know that … Read more