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Working principle of integrated circuit board
1. Power supply: Integrated circuit board needs stable power supply voltage to work properly. The power supply voltage is usually divided into positive voltage and negative voltage, which are connected to the positive and negative poles of the circuit board respectively. The power supply voltage is transmitted to each component through the conductive path to provide them with the power required for work.
2. Signal transmission: The electronic components in the integrated circuit board need to transmit signals to each other to realize the circuit function. Signal transmission can be carried out through the conductive path or wirelessly. In the conductive path, the signal current flows along the copper foil line and is transmitted from one component to another.
3. Signal processing: The electronic components in the integrated circuit board can process the signal, such as amplification, filtering, modulation and demodulation. These processing processes are usually realized by semiconductor materials inside the electronic components. For example, transistors can realize current amplification function, diodes can realize rectification function, etc.
4. Output result: After signal processing, the integrated circuit board will output the corresponding result. This result can be a digital signal or an analog signal. Digital signals are usually represented by high and low levels, while analog signals can be represented by continuously changing waveforms. The output result can be transmitted to other devices or components through a conductive path, or displayed through a display, speaker, etc.
5. The role of the ground wire: The ground wire in the integrated circuit board provides a reference potential for the circuit, so that the voltage difference between the components can be measured and controlled. At the same time, the ground wire can also provide a loop for the circuit so that the current can flow smoothly.
The structure and manufacturing process of integrated circuit boards
An integrated circuit board is a carrier that carries integrated circuits. It is mainly made by semiconductor manufacturing technology. It uses a certain process to interconnect the transistors, diodes, resistors, capacitors, inductors and other components and wiring required in a circuit, and make them on a small piece or several small pieces of semiconductor wafers or dielectric substrates, and then encapsulate them in a tube shell to become a microstructure with the required circuit function.
