The main PCBA Manufacturing Pollution mainly includes the following aspects: 1. PCBA surface pollution will be caused by the pollution or oxidation of PCBA components and PCB circuit boards; 2. Fingerprints will be produced during manual soldering, and some wave soldering claw marks and soldering pallet (jig) marks will be produced during wave soldering. There…
Why PCB Circuit Boards are Widely Used in Electronic Products? 1. High reliability: We will pass a series of inspections, tests, and aging tests to ensure long-term reliable operation of the electric board circuit. 2. High density: For decades, with the improvement of integrated circuit integration and the advancement of mounting technology, high-density printed circuit…
In the process of making PCB circuit boards, PCB board inks play the role of protecting the copper foil, so that the copper skin is not exposed to the outside, thus affecting the subsequent processes; the commonly used ink colors are white oil, green oil, black oil, blue oil, red oil, butter. So, what are…
PCB screen printing is an important process in PCB production, and it also determines the quality of the finished PCB board. So, what are the screen printing specifications and requirements for PCB circuit boards? 1. All components, mounting holes and positioning holes have corresponding silk screen labels. In order to facilitate the installation of the…
Double sided circuit board terminals block refers to the terminal block applied to the electrical connection of the programming circuit boards and is an electronic accessory product used for electrical connection. The mini PCB board terminals are classified into plug-in terminals, screw terminals, spring terminals, and fence terminals. 1. Plug-in terminal block Pluggable terminal block products…
PCB is the basic component of electronic products, and any electronic product needs to make through a hole PCB. Then, in electronic products, the PCB must be connected with other devices, which is the PCB interconnection. Generally speaking, there are three aspects of Printed Circuit Boards Connection: chip to PCB, inside PCB, PCB, and external…
The PCB screen printing layer of the circuit board is the text layer. Its function is to facilitate the installation and maintenance of the circuit and print the required logo patterns and text codes on the upper and lower surfaces of the high-density PCB, such as component labels and nominal values, component shapes and manufacturer…
In the process of using the PCBA board, it is inevitable to encounter harsh environmental conditions such as dust, salt spray, and high and low temperatures, so in order to protect the printed circuit, can anti-electrical glue be used? The resin is synthesized by a special formula and is an electric anti-glue. It is a…
What is the difference between double-sided, single-sided, and multi-layer circuit boards (PCBs)? Which one should be used for which application? What is a double-sided PCB board? Double-sided boards have wires on both sides, but if wires are to be used on both sides, there must be a proper circuit connection between them. The “bridges” between…
The damage caused by the short circuit of the PCBA can be quite large, from the burning of the component to the discarding of the oversized PCBA. At the same time, short circuit is also the most common fault of the circuit board. So, how to check and prevent short circuit of the PCB circuit…