News
We adhere to the business policy of quality first and credit first
2023-02-10
Three major factors causing welding defects of circuit board
Poor weldability of circuit board holes will produce virtual welding defects, affect the parameters of components in the circuit, lead to the instability of multilayer components and inner wire conduction, and cause the functional failure of the entire circuit. The so-called welderability is the property of the metal surface being wetted by molten solder, that is, the metal surface where the solder forms a layer of relatively uniform continuous smooth adhesion film.
2023-02-10
What is PCB resin plug hole? Why use resin plug hole?
PCB uses resin plug holes. This process is usually due to BGA parts, because traditional BGA may make VIA to the back between PAD and PAD for wiring, but if BGA is too dense and the VIA cannot go out, it can be drilled directly from PAD to make via to other layers for wiring, and then the hole is filled with resin and copper plated to become PAD. That is, the commonly known VIP process (via in pad), if it is only done on the PAD via without resin plug hole, it is easy to cause tin leakage leading to short circuit on the back and front air welding.
2023-02-10
What is a blind hole? What is buried hole?
Blind Via Hole: The outermost circuit of the PCB is connected with the adjacent inner layer by electroplating holes. It is called "blind through" because it cannot see the opposite side. In order to increase the space utilization of PCB circuit layer, the "blind hole" process emerges as The Times require. This production method needs to pay special attention to the depth of the drilling hole (Z axis) to be just right, but this method often causes difficulties in the hole electroplating so almost no manufacturers use; You can also drill a good hole in advance when you need to connect the circuit layer in the individual circuit layer, and then finally stick together, but you need more precise positioning and alignment device.
2023-02-10
What is a rigid plate? What problems should we pay attention to when making this kind of board?
Just torsion plate, is we often say the combination of soft and hard plate. The soft and hard combined board has the characteristics of FPC and PCB at the same time, so it can be used in some products with special requirements, both flexible and rigid areas, to save the internal space of the product, reduce the volume of finished products, improve the product performance is of great help. The production process is various, the production is difficult, the rate of good products is low, the material, manpower is more, therefore, the price is more expensive, the production cycle is longer.
Professional manufacturing of circuit board
Add: Zone B, No. 21, Qixing Avenue, Fushan Mountain Industrial Zone, Zhuhai, Guangdong Province
Email：Jkpcbcy@163.com
Scan and follow us
Social media
Copyright © 2023 Zhuhai Longshun Electronic Technology Co., Ltd Powered by : www.300.cn 粤ICP备2022152132号
