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Technology refers to a technology in which chip components are mounted and welded on the surface of the printed circuit board. Compared with the traditional through hole assembly technology, the technology has the advantages of high assembly density.
The Chinese name of SMT chip processing (PCB) is called "printed circuit board", also known as printed circuit board, printed circuit board, is an important electronic component, is the support body of electronic components, is the provider of e...
In general, high density boards do not add ICT. If you want to add ICT, you can set test piont in the schematic and transfer it to the network table; It can also be added by hand.
Although this crosstalk noise to reduce the network transmission delay is helpful to improve the PCB timing, but in the actual PCB design, due to the uncertainty of the interference source network, this delay is uncontrollable, so the delay caused by this
Application of BGA Devices in Electronic ProductsThe large temperature difference △T in the chip range leads to the problem of different tin melting between rework and production, which prompts manufacturers to try to obtain the reason for simultaneous ti
BGA Reliability ImpactSince flux directly affects electromigration and surface insulation resistance, cleaning is generally required after soldering, but flux cleaning at the bottom of BGA is a very tricky task, so it is recommended to use no-clean flux,
BGA components and their assembly process(1) Visual inspectionFor package arrays such as BGA, without inspection equipment, first visually observe whether the collapse of the outermost solder joints is consistent, and then look at the chip against the lig
FR4 Materials and PropertiesFR4 is a standard for glass fiber reinforced epoxy resin compounds defined by NEMA (National Electrical Manufacturers Association).FR stands for "flame retardant" in English and indicates that the material complies with the UL9
Impedance design of PCB1. Definition of impedance:At a certain frequency, in the transmission signal line of an electronic device, relative to a certain reference layer, the resistance suffered by the high-frequency signal or electromagnetic wave during p
PCB assembly in the medical industryPrinted circuit boards (PCBs) play an important role in healthcare and medicine. As the industry continues to innovate to bring the best technology to patients and their caregivers, more and more research, treatment and
The specific steps and composition of printed circuit board (PCB)With the improvement of microelectronics technology and industrial manufacturing level, printed circuit board (PCB) has become the basic unit of all smart devices and systems. PCB can realiz
PCB AssemblyIn our ongoing series describing the more common problems associated with printed circuit boards, we examine design, assembly, and manufacturing issues. Next, we'll focus on some issues that can affect the board during assembly. While some of