In the initial stage of debugging and maintenance of circuit board, the replacement of components and parts will be encountered. Disassembling components is a kind of labor with technology.

In the electronic process, PCBA (circuit board or circuit board) often turns white after cleaning, and the white mark is scattered around the solder joint, which seriously affects the appearance acceptance and brings quality hidden trouble.

Printed circuit board {PCB circuit board}, also known as printed circuit board, is the provider of electrical connection of electronic components. Its development has been more than 100 years; its design is mainly layout design; the main advantage of using circuit board is to greatly reduce wiring and assembly errors, improve the level of automation and production labor rate.

UV coating adhesive for circuit board protection is a single component UV curable acrylate adhesive with high bonding strength and quick surface drying under UV irradiation. It is suitable for automatic operation and greatly improves production efficiency.

In order to ensure the appearance and quality of circuit board, PCB assembly of circuit board has very high requirements for flatness. High flatness, fine wire and high precision have strict requirements on the surface defects of circuit board substrate, especially for the flatness of substrate. The warpage of SMB is controlled within 0.5%, while that of general non SMB printed circuit board is 1% ~ 1.5%. At the same time, SMB also has higher req...

There are many ways to solve EMI problems. Modern EMI suppression methods include: using EMI suppression coating, selecting appropriate EMI suppression parts and EMI simulation design. Based on the most basic PCB layout, this paper discusses the function and design skills of PCB stack in controlling EMI radiation.

STM's new chipset enables users to quickly develop reliable and space efficient power consumption devices (PD) using the latest Poe specification IEEE 802.3bt.

The conductive copper foil is printed on the plastic board, and the conductor is replaced by the copper foil. As long as various components are installed on the printed circuit board, the copper foil can connect them to form a circuit. As shown in the figure below:

PCB is made of different components and a variety of complex processing technology. The structure of PCB has single-layer, double-layer and multi-layer structure. The manufacturing method of different hierarchical structure is different. (this paper will introduce in detail: the component names and corresponding uses of PCB circuit board, the production of single layer, double layer and multi-layer structure of PCB circuit board and the main func...

PCB board and aluminum substrate are designed according to the requirements of PCB board. At present, the aluminum based PCB board in the market is generally single-sided aluminum substrate. PCB board is a large type. Aluminum substrate is only a kind of PCB board, which is aluminum based metal plate. Because of its good thermal conductivity, it is generally used in LED industry.

Aluminum substrate is a kind of metal based copper clad laminate with good heat dissipation function. Generally, the single panel is composed of three layers: circuit layer, insulation layer and metal base layer. For high-end use, there are also double-sided boards, the structure is circuit layer, insulation layer, aluminum base, insulation layer, circuit layer. Very few applications are multi-layer boards, which can be made of ordinary multilaye...

Printed circuit board (PCB) A printed circuit board on an insulating substrate to form a printed device or printed circuit and a conductive pattern combining the two according to a predetermined design.

Total 4 Pages 37 Records