This article explores the critical role of PCB assemblies and motherboard design in enhancing electronic performance, discussing best practices, innovative techniques, and the latest advancements to optimize functionality and reliability.
Via is one of the important components of multi-layer PCB, and the cost of drilling usually accounts for 30% to 40% of the cost of PCB board manufacturing. Simply put, every hole on the PCB can be called a via. From the perspective of function, vias can be divided into two categories: one is used…
Wiring is an extremely important part of PCB design, which will directly affect the performance of the PCB board. In the PCB design process, different layout engineers have their own understanding of layout, but all layout engineers are consistent in how to improve the efficiency of wiring, which can not only save the development cycle…
1 Tinning effect When hot liquid solder dissolves and penetrates the metal surface to be soldered, it is called tinning of the metal or tinning of the metal. The molecules of the mixture of solder and copper form a new alloy that is partly copper and partly solder. This solvent effect is called tinning, which…
1.Determine the number of layers of PCB The size of the circuit board and the number of wiring layers need to be determined at the beginning of the design. If the design requires the use of high-density ball grid array (BGA) components, the minimum number of wiring layers required for the wiring of these devices…
As an important part of PCB design, copper coating, whether it is domestic Qingyuefeng PCB design software or some foreign Protel and PowerPCB, all provide intelligent copper coating function. So how to coat copper well? The author of this article shares some of his ideas with you, hoping to benefit peers. The so-called copper coating…
Let you know what is the DPC process of copper-clad ceramic substrateDirect Plating Copper (DPC) process: It is a process method for preparing high-density electronic packaging materials. This process is the main method for metal film deposition in microelectronics manufacturing. It mainly uses surface deposition processes such as evaporation and magnetron sputtering to metallize the…
As an electronic engineer, designing circuits is a necessary hard work. However, no matter how perfect the principle design is, if the circuit board design is unreasonable, the performance will be greatly reduced, and in serious cases, it may not work properly. Based on my experience, I have summarized the following points that should be…
For the new PCB board that has just been brought back, we must first roughly observe whether there are any problems on the board, such as whether there are obvious cracks, short circuits, open circuits, etc. If necessary, you can check whether the resistance between the power supply and the ground wire is large enough….
At present, electronic equipment used in various electronic equipment and systems still uses printed circuit boards as the main assembly method. Practice has proved that even if the circuit schematic is designed correctly, improper design of the printed circuit board will have an adverse effect on the reliability of electronic equipment. For example, if two…
The key tasks of my country’s copper clad laminate (CCL) industry in the future development strategy, specifically speaking, should be to work hard on five major categories of new PCB substrate materials, that is, through the development and technological breakthroughs of the five major categories of new substrate materials, to improve my country’s CCL cutting-edge…
With the increase in the output switching speed of integrated circuits and the increase in the density of PCB boards, signal integrity has become one of the issues that must be concerned about in high-speed digital PCB design. Factors such as the parameters of components and PCB boards, the layout of components on PCB boards,…
In electronic design, after the project schematic design is completed and compiled, the PCB design needs to be carried out. After the board size, stacking design, and overall partition conception are determined, the first step of the design is to place the components in their appropriate positions. Layout is a crucial link. The quality of…
Test before power on After a circuit board is soldered, when checking whether the circuit board can work normally, it is usually not directly powered on, but the following steps should be followed to ensure that there is no problem in each step before powering on. 1.Whether the connection is correct Check the schematic diagram….
In today’s high-tech era, electronic products are everywhere, and they have brought great convenience to our lives. However, with the popularization and integration of electronic devices, electromagnetic interference (EMI) problems have become increasingly prominent. 1.EMI Electromagnetic Interference Industry: Ubiquitous Challenges Electromagnetic interference, that is, the interference caused by electromagnetic noise or electromagnetic radiation to the…