Author Archives: RCY

Comparison of Dry Film and Wet Film for PCB Processing

The dry film is easy to operate, especially using an automatic film laminating machine, which can be mass-produced. The wet film is cheap, but it cannot be used on automatic lines. The wet film is theoretically good for thin lines, but the wet film also has many other problems. In general, the dry film is […]

Overview of Final Coatings on PCB Surfaces

The final coating process for PCB manufacturing has undergone important changes in recent years. These changes are the result of the continued need to overcome the limitations of HASL (hot air solder leveling) and the growing number of HASL alternatives. The final coating is used to protect the surface of the circuit copper foil. Copper (Cu) is […]

PCB Short Circuit Inspection Method

1. If it is manual welding, it is necessary to develop a good habit. First, visually check the PCB board before welding, and use a multimeter to check whether the key circuits (especially the power supply and ground) are short-circuited. Use a multimeter to test whether the power supply and the ground are short-circuited. In addition, do […]

PCB Board Price Analysis

The price of PCB is composed of the following factors: 1. The materials used in the PCB circuit board are different. Take ordinary double-sided boards as an example. Sheet materials generally include FR-4, CEM-3, etc., with thicknesses ranging from 0.6mm to 3.0mm, and copper thicknesses ranging from ½ Oz to 3 Oz. In terms of solder mask […]

What is FPC circuit board?

Circuit boards play an essential role in the electronics industry. This is because they are widely used to play various roles in devices such as computers, televisions, and power systems. Printed circuit boards consist of conductive tracks that interconnect components on the board. They include potentiometers, resistors, capacitors, and switches with various voltage or current levels. They are also typically […]

Production Difficulties of Multilayer PCB Prototyping

Multilayer PCBs are used as the “core force” in the fields of communications, medical treatment, industrial control, security, automobiles, electric power, aviation, military industry, and computer peripherals. Product functions are getting higher and higher, and PCBs are getting more and more sophisticated, so relative to the difficulty of production also getting bigger. 1. Difficulties in Making […]