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
The technical realization process of PCB copying board is simple. Firstly, the circuit board of the copying board shall be scanned, the location of components shall be recorded, the components shall be removed and made into material list, and the material
PCB copper-clad plate is the basic material of electronics industry, mainly used for processing and manufacturing printed circuit board (PCB), and pcb production process and material affect its price
Many design decisions affect the robustness of a high power inverter design. We need to evaluate the type of power switch, consider the operating voltage requirements, application dependencies, and how to power the secondary side of a half-bridge device.
Impedance refers to the resistance and reactance parameters, because PCB circuit board bottom plug into consideration of electrical conductivity and signal transmission performance, so it is necessary to impedance as low as possible, resistivity should be
The life and performance of circuit board machining depend on the selection of PCB board. Fiberglass FR4 is the most common material used for PCB substrates. For flexible PCBS, use Clapton or equivalent plastic. PCBS made from cheaper materials such as ep
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