RF is the abbreviation of high-frequency alternating electromagnetic waves. According to Maxwell's theory of electromagnetic fields, an oscillating electric field produces an oscillating magnetic field, and an oscillating magnetic field produces an oscillating electric field. Electromagnetic fields propagate outward in space, forming electromagnetic waves. gps pcb antenna RF PCB: A high-frequency PCB made of polytetrafluoroethylene […]
Metal-based copper-clad laminates were born and developed in response to the rapid advancement of production and manufacturing technology in the electronics industry. As early as the early fifties, Japanese thick film research experts put forward the idea of this process design. It was not until 1969 that the manufacturing technology was practically applied. Metal core pcb The copper substrate […]
The process from the light board to show the line graphics is a more complex physical and chemical reaction process, now the typical process of PCB processing using the "graphic plating method", the need to retain the line graphics to protect, and then the next step in the etching. corroded copper The practice is to pre-plate a layer […]
PCB fabrication is the process of building a physical PCB from a PCB design according to a set of specifications. Understanding the design specifications is very important because it affects the manufacturability, performance, and production yield of the PCB. PCB refers to printed circuits board, printing wiring board(PWB). One of the important design specifications to follow is "balanced copper" in PCB […]
Accompanied by the rapid development of electronic information technology, printed circuit board assembly (PCBA) assembly process requirements are increasingly high, and the stability and quality of electronic products are mainly at the stability and quality level of PCBA. In the actual operation of the process and its PCBA failure analysis, it is not difficult to […]
PCB solder mask layer, refers to the printed circuit board to be on the part of the green ink. Soldermask windowed position is not on the ink, exposed copper to do surface treatment after welding components position, not windowed position are printed on the ink to prevent line oxidation, leakage. PCB solder mask open window for three reasons1. […]
PCB etching process is an essential part of the production of PCB, it is through a chemical reaction that will not cover the copper layer corrosion, thus forming the circuit board on the line required. PCB printed circuit factors affect the characteristics of the etching solution, a choice of etching solution etching solution selection is very important, it is so […]
PCBs used in harsh and extreme environments mean that they need to operate under extreme temperatures, humidity, constant vibration, strong shocks, and other conditions that can affect reliability and their normal performance. Due to the differences in environmental requirements across industries and applications, in the medical industry, this could mean conditions such as high temperatures, […]
Plating sealing holes is a commonly used manufacturing process for printed circuit boards, used to fill and seal through-holes (vias) to enhance conductivity and protection. In the printed circuit board manufacturing process, the vias are used to connect the different circuit layers. The purpose of plating to seal vias is to enhance conductivity and provide […]
Solder mask(solder resist) is used to provide media and mechanical shielding during and after the soldering process. Solder masks are used to provide dielectric and mechanical shielding during and after the soldering process. The material of the solder resist can be liquid or dry. Colors of PCB Solder maskPCB solder mask can be displayed in […]
IC carrier board, also known as packaging substrate, connects and transfers the bare chip (DIE) and the signal carrier between the PCB, which can be understood as a high-end PCB product. IC carrier board compared to the PCB has higher technical requirements. IC carrier board From the development of HDI (High-Density Interconnect) technology, from the […]
Impedance control, the conductor in the circuit board will be a variety of signal transmission, to improve its transmission rate and must improve its frequency, the line itself, if due to etching, the thickness of the laminated layer, the width of the conductor and other factors that will cause impedance worth of change, so that […]