Knowledge

What are the classification and composition of PCB circuit board vias?

Vias are an important part of PCB circuit boards, and the cost of drilling usually accounts for 30% to 40% of the cost of PCB manufacturing. Simply put, every hole on a PCB can be

What is the difference between gold plating and immersion gold

Immersion gold adopts the method of chemical deposition. A layer of coating is formed by chemical redox reaction. Generally, the thickness is thicker. Gold plating uses the princip

The key raw materials of circuit boards are different in the application of P...

The performance of printed circuit boards (PCBs) directly affects the performance of electronic products. Laminates made of polyimide resin can be used as printed circuit substrate

What are the reasons for the copper exposure in the hot air leveling process ...

Hot air leveling is to immerse the printed circuit board in molten solder, and then use hot air to blow off the excess solder on its surface and metallized holes to obtain a smooth

FPC surface plating knowledge

Flexible circuit board FPC plating (1) Pretreatment of FPC electroplating The surface of the copper conductor exposed by the FPC after the coating process may be contaminated by ad

Why is not 100% valid for FPC 100% test

It is a common practice to conduct 100% inspection in order to avoid non-conforming products being shipped. Every product produced is inspected and judged to pass or fail. Goods wi

What is the difference between single-sided aluminum substrate and double-sid...

Aluminum substrate is a metal-based copper clad laminate with good heat dissipation function, which is mostly used in the LED industry. The single-sided aluminum substrate can only

Material Requirements for Automotive HDI PCB

The vigorous development of the electronics industry has promoted the rapid development of many industries. In recent years, electronic products have been widely used in the automo

What are the advantages and disadvantages of OSP process?

There are many PCB manufacturers today, but there are not many manufacturers who can do the OSP process well, because the processing of OSP boards requires rich experience in PCBA

Reasons for damage or penetration dry film pcb board and its improvement

The wiring of the PCB board is very precise, and many PCB manufacturers use the dry film process to transfer the circuit pattern. 1. There is a hole in the dry film when the hole i

How to efficiently select PCB materials and electronic components

The selection of PCB materials and electronic components is quite knowledgeable, because customers need to consider many factors, such as the performance indicators, functions of c

What are high frequency board the advantages

There is a very popular type of PCB circuit board, that is PCB high frequency board. PCB high-frequency board has been favored by the market since its invention. Since the emergenc