What is an integrated circuit：
Integrated Circuit is abbreviated as IC, which is a miniature electronic device or component. A certain process is adopted to interconnect the transistors, resistors, capacitors and inductors and other components and wiring required in a circuit, fabricate them on a small or several small semiconductor wafers or dielectric substrates, and then package them in a package Internally, it becomes a microstructure with the required circuit functions; so the components are structured as a whole, which makes the electronic components a big step towards microminiaturization, low power consumption, miniaturization and high reliability.
Most of the current semiconductor industry uses silicon-based integrated circuits, which are a new type of semiconductor device developed in the late 1950s and 1960s. It is manufactured by semiconductors such as oxidation, photolithography, diffusion, epitaxy, and aluminum evaporation.
The process is to integrate the semiconductors, resistors, capacitors and other components required to form a circuit with a certain function and the connecting wires between them on a small silicon chip, and then solder the electronic devices packaged in a shell. Its packaging shell has many forms such as round shell type, flat type or dual in-line type. Integrated circuit technology includes chip manufacturing technology and design technology, which is mainly reflected in processing equipment, processing technology, packaging and testing, mass production and design innovation capabilities.
Integrated Circuit Application and classification:
Now, Integrated Circuit has played a very important role in all walks of life and is the cornerstone of the modern information society. The meaning of Integrated Circuit has far exceeded the scope of its definition when it was first born. Integrated Circuit is widely used in industries such as automotive, aerospace, medical, electronic communications, and personal electronics.
Integrated circuits can be divided into integrated circuits for televisions, integrated circuits for audio, integrated circuits for video disc players, integrated circuits for video recorders, integrated circuits for computers (microcomputers), integrated circuits for electronic organs, integrated circuits for communications, and integrated circuits for cameras. Circuits, remote control integrated circuits, language integrated circuits, integrated circuits for alarms and various special integrated circuits.
1. Integrated circuits for TVs include line and field scanning integrated circuits, intermediate amplifier integrated circuits, sound integrated circuits, color decoding integrated circuits, AV/TV conversion integrated circuits, switching power supply integrated circuits, remote control integrated circuits, and Nicam decoding integrated circuits , Picture-in-picture processing integrated circuits, microprocessor (CPU) integrated circuits, memory integrated circuits, etc.
2. Audio integrated circuits include AM/FM high-intermediate frequency circuits, stereo decoding circuits, audio preamplifier circuits, audio operational amplifier integrated circuits, audio power amplifier integrated circuits, surround sound processing integrated circuits, level drive integrated circuits, and electronic volume Control integrated circuits, delay reverberation integrated circuits, electronic switch integrated circuits, etc.
3. Integrated circuits for DVD players include system control integrated circuits, video encoding integrated circuits, MPEG decoding integrated circuits, audio signal processing integrated circuits, sound effect integrated circuits, RF signal processing integrated circuits, digital signal processing integrated circuits, servo integrated circuits, Motor drive integrated circuits, etc.
4. Integrated circuits for video recorders include system control integrated circuits, servo integrated circuits, drive integrated circuits, audio processing integrated circuits, and video processing integrated circuits.
5. Computer integrated circuits, including central control unit (CPU), internal memory, external memory, I/O control circuit, etc.
6. Communication integrated circuit
7. Professional control integrated circuits
According to different functions and structures, integrated circuits can be divided into three categories: analog integrated circuits, digital integrated circuits, and digital/analog hybrid integrated circuits.
Analog integrated circuits, also known as linear circuits, are used to generate, amplify and process various analog signals (signals whose amplitude changes with time. For example, audio signals of semiconductor radios, tape signals of VCRs, etc.). The input signal and output signal are ratio. The digital integrated circuit is used to generate, amplify and process various digital signals (referring to signals with discrete values in time and amplitude. For example, 5G mobile phones, digital cameras, computer CPUs, digital TV logic control and playback audio signals And video signal).
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