Category Archives: Uncategorized

1.MTK MT6582 chip module: 3G MediaTek MTK6582 Mobile Phone Scheme MT6582 Development Board Android Core Board LTE Module Introduction to pcb design of MTK development board; MTK6582 development board is a 3G WCDMA communication module as the main board and SMT package. It has stable performance, compact shape, high cost performance, powerful functions, good expansibility […]

Cleaner production refers to continuously adopting measures such as improving design, using clean energy and raw materials, adopting advanced technology and equipment, improving management and comprehensive utilization, etc., to reduce pollution from the source, improve resource utilization rate, and reduce or avoid the generation and discharge of pollutants in the process of PCB production, service […]

R5 in PCB refers to the resistance. There are many resistors in the circuit diagram, which are listed in sequence, R1, R2? … (the previous “R” refers to the resistance in general; The Arabic numerals at the back are components; Here is the sequence number of the resistor. There will be a lot of component […]

PCB is also called “PCB Printed Circuit Board”. PCB can be divided into single-sided, double-sided and multi-layered boards according to the hierarchy. It has the characteristics of high density, good security, thin thickness and good flexibility, and is widely used in the fields of communication, automotive electronics, consumer electronics, aerospace and so on. The manufacturing […]

In order to ensure the quality of signal transmission, reduce EMI interference and pass the relevant impedance test certification, it is necessary to design the impedance matching of PCB key signals. This design guide is a synthesis of commonly used calculation parameters, signal characteristics of TV products, actual requirements of PCB Layout, calculation of SI9000 […]

It is a high-frequency board model produced by Rogers Rogers Company, which is different from the conventional PCB board-epoxy resin. It has no glass fiber in the middle, and uses ceramic matrix as high-frequency material. Rogers has excellent dielectric constant and temperature stability, and its thermal expansion coefficient of dielectric constant is very consistent with […]

What is FR-4? FR-4 material, which is the abbreviation of glass fiber cloth, is a kind of raw material and base material of circuit board. It is the code name of the grade of flame-resistant material, which means that the resin material must be able to extinguish itself after burning. Most commonly used in PCB […]

When welding PCBA, there are usually many requirements for PCBA boards, and only boards that meet the requirements can be welded. So why do welding processes require so many requirements for boards? Originally, the processing of PCBA will go through a lot of special processes, and the application of special processes immediately brings the requirements […]

With the development of electronic industry, the integration of electronic components is getting higher and higher, but the volume is getting smaller and smaller, and BGA type packaging is widely used. Therefore, PCB lines will be smaller and smaller, with more and more layers. Reducing the line width and line spacing is to make the […]

Today, with the rapid development of science and technology, various high-tech electronic products emerge in endlessly, which makes circuit board manufacturers more and more strict on the quality of plates. So, what quality problems are most likely to occur in the PCB production process of PCB factory? 1. The dimension of substrate changes due to […]