The most basic purpose of PCB surface treatment is to ensure good solderability or electrical performance.Since copper in nature tends to exist in the form of oxides in the air, it is unlikely to remain as pure copper for a long time, so additional treatments are required for copper.There are now many PCB surface treatment … Read more
Many modern NAND flash devices now adopt a new architecture that integrates the interface, controller, and storage chips into a common ceramic layer. We call this a monolithic structure encapsulation.Until recently, all storage cards, such as SD, Sony’s MemoryStick, MMC, etc., contained a very simple ‘classic’ structure with separate components—a controller, a PCB, and NAND … Read more
In printed circuit board (PCB) design, many engineers encounter various issues, one of which is whether “three wires can be routed from the circuit board?” The answer is yes; the pads or connection points on a PCB can connect and route multiple wires, including three wires. 1. Why Can Three Wires Be Routed From A … Read more
The following content is a collection of knowledge and techniques I have gained from recently soldering surface mount components, which I am now selflessly sharing with you (if you can understand it, then great! ~ (～￣▽￣)～). However, I want you to know that soldering is not something you can learn in just a few tries; … Read more
The motor driver IC transmits a large amount of current while dissipating a significant amount of electrical energy. Typically, energy is dissipated into the copper areas of the printed circuit board (PCB). To ensure sufficient cooling of the PCB, special PCB design techniques are required. This article provides some general recommendations for PCB design of … Read more
Electrical Vocational Internship Week Every semester, the school arranges for students from various majors to engage inthree to four weeks of internship tasks to assess their understanding and mastery of their respective fields. Students from different majors complete internship tasks in areas such assoftware development, web design, circuit board soldering, video shooting, and art design. … Read more
In the manufacturing of printed circuit boards (PCBs), it is common to encounter solder bridging issues, where unexpected solder connections occur between adjacent pads. This is mainly due to improper pad setup, and if not addressed promptly, it can lead to circuit shorts, affecting normal functionality. So how do you choose pads? Perhaps you can … Read more
With the continuous development of electronic science and technology, PCB technology has also undergone tremendous changes, and manufacturing processes need to progress as well. At the same time, the requirements for PCB circuit board processes in various industries have gradually increased. For example, circuit boards in mobile phones and computers use both gold and copper, … Read more
We often see the concept of teardrops, but many people express that they do not understand the meaning of this term and do not know how to add teardrops in PCB design. Please read on with this question in mind. Function of Teardrops ● Avoid the disconnection of contact points between wires and pads or … Read more
The motor driver IC transmits a large amount of current while also dissipating a significant amount of electrical energy. Typically, the energy is dissipated into the copper areas of the printed circuit board (PCB). To ensure sufficient cooling of the PCB, special PCB design techniques must be employed. In this first part of the article, … Read more