I recently encountered a PCB leakage issue with a low-power product. Originally, the device drew only µA current, but after a period of aging and use at room temperature, its power consumption increased, reaching the mA level in some prototypes. After carefully troubleshooting component issues, I finally discovered a 5V voltage point. While the device…
When designing a complex board, you must make certain design tradeoffs. These tradeoffs influence the design of the PCB’s power distribution network. When capacitors are mounted on a PCB, they create an additional loop inductance, which is dependent on the capacitor’s placement. The value of this loop inductance is design-dependent. This loop inductance is determined…
Electronic devices generate a certain amount of heat during operation, causing the internal temperature to rise rapidly. If this heat is not dissipated promptly, the device will continue to heat up, leading to component failure due to overheating and reduced reliability. Therefore, it is crucial to effectively dissipate heat from the circuit board. PCB heat…
PCB ink refers to the ink used in printed circuit boards (PCBs). Key physical properties of PCB inks include viscosity, thixotropy, and fineness. Understanding these physical properties is crucial to improving your ink application skills. PCB Ink Characteristics 1.Viscosity and Thixotropy Screen printing is an essential process in printed circuit board manufacturing. To achieve high-fidelity…
Many children love donuts. During those relaxing moments with their children, these adorable little ones inevitably become curious and ask a thousand questions. They’ll often ask how donuts are made and why they have a hole in the center. As parents, we’ll try our best to satisfy their curiosity, but often our efforts fall short….
Since November, Shanghai Electric Co., Ltd. has maintained strong performance, with a cumulative increase of 18%. This strong performance is primarily due to its strong performance. The company’s net profit after deducting non-recurring gains and losses in the third quarter was 368 million yuan, a year-on-year increase of 39.63%. Shanghai Electric Co., Ltd. recently stated…
Countless application examples of industrial, scientific, and medical radio frequency (ISM-RF) products demonstrate the vulnerability of printed circuit board (PCB) layout to various flaws. It’s common to observe significant differences in performance between the same IC mounted on two different boards. Variations in operating conditions, harmonic emissions, interference immunity, startup time, and other factors highlight…
Abstract Switch Mode Power Supplies (SMPS) are widely used in modern electronics due to their high efficiency, compact size, and ability to handle varying input voltages. However, achieving optimal performance requires careful PCB (Printed Circuit Board) layout design. Poor PCB layout can lead to issues such as electromagnetic interference (EMI), excessive noise, thermal problems, and…
The design of high-frequency circuit PCB is a complex process, and many factors may be directly related to the working performance of high-frequency circuits. High-frequency circuit design and wiring are crucial to the entire design. The following ten skills for high-frequency circuit PCB design are especially recommended: 1.Multilayer board wiring High-frequency circuits are often highly…
Introduction Printed Circuit Boards (PCBs) are the foundation of nearly all modern electronic devices. From smartphones and laptops to medical equipment and aerospace systems, PCBs provide the necessary electrical connections between components in a compact and efficient manner. Their design, manufacturing, and functionality have evolved significantly since their inception, enabling the rapid advancement of technology….
In the PCB production process, there is another important process, that is, process edge. The reservation of process edge is of great significance for the subsequent SMT patch processing. The process edge is the part added on both sides or four sides of the PCB board, mainly to assist the patch plug-in welding and board…
Introduction In the electronics manufacturing industry, two terms that are often used interchangeably but have fundamentally different meanings are PCB and PCBA. While both are essential components of modern electronic devices, they represent distinct stages in the electronics production process. This article will explore the key differences between Printed Circuit Boards (PCBs) and Printed Circuit…
With the continuous development of modern electronic technology, the requirements for hardware design are getting higher and higher. As the basis of hardware design, PCB design occupies a vital position in the entire production process of electronic products. However, in the actual PCB design process, some common problems often occur due to various reasons. This…
Abstract Printed Circuit Board (PCB) layout design plays a critical role in the manufacturability and reliability of electronic assemblies. A disorganized or poorly planned PCB layout can lead to significant soldering defects, affecting electrical performance, mechanical stability, and long-term durability. This paper examines the key challenges posed by chaotic PCB layouts, including thermal management issues,…
Good PCB layout also requires balancing multiple goals. This includes not only following the rules and guidelines for board layout, but also ensuring that your PCB design process encompasses all issues that could impact the manufacturing process and quality of your board. For example, knowing when and how to design for testability (DFT) can significantly…