Compared with earlier standard ceramic materials, the new technology ceramics have improved durability, inertness and chemical properties. Even the physical properties have changed. Ceramic materials do not break down, soak or absorb moisture in large qua
Printed circuit board is a bridge that carries electronic components and connects circuits. It is widely used and is an indispensable electronic component in modern electronic information products.
In order to improve the technical performance of the printed circuit board, we must first improve the performance of the printed circuit substrate board, and ensure the demand for high density and fine wire, copper foil, laminated insulating dielectric sh
There are many ways to make printed boards under amateur conditions, each has its own characteristics. When painting, we should pay attention to the hand force to the proper weight, too heavy paint film is too thick, the line will run lace, too light line
The content of PCB circuit board metal is up to more than 40%, so there is a waste PCB recycling industry. Refining the metal in the circuit board, the remaining non-metallic waste powder, can also be used as an important filling material in polymer compo
The disposal methods of waste PCB include crushing, separation, supercritical technology treatment, heat treatment (it mainly includes incineration, vacuum cracking, microwave, etc.), hydrometallurgy, biotechnology.
In the process of circuit board production, the waste water mainly contains copper, chromium, nickel, zinc, acid and alkali pollution components. If the above wastewater is not effectively treated, it will do harm to human beings, fish, plankton and the e
After the PCB size is determined, the pendulum position of the special component is determined. According to the function unit, the layout of all components of the circuit board.
The difficulty of PCB design is that there are more and more devices with different digital logic, and these circuits with different logic thresholds and voltage swings must be designed together on a PCB multilayer circuit board.
Circuit board is to assist electronic components to better play their due performance, chipset mainly determines the function of the motherboard, and then affects the performance of the whole computer system, is the core component of the motherboard.
Flexible circuit board has the characteristics of short, small, light and thin; It has the characteristics of high assembly density and small volume. There are high cost, long cycle, complex inspection methods, etc., which is a process that all FPC circui
In the mobile phone terminal, the most important core is the RF circuit board and baseband circuit board. Rf circuit board responsible for RF transceiver, frequency synthesis, power amplification; Baseband circuit boards are responsible for signal process
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