Integrated Circuits

Integrated circuits are a tiny electronic devices or components. By a certain technology, put a circuit for the transistor, diodes, resistance, capacitance and inductance and components and wiring interconnection together, make on a small piece of or several small pieces of semiconductor wafer or medium substrate, then housed in a tube and shell inside, become with necessary circuit function of micro structure, All components in structure has an integral unit, so that the whole circuit, and the volume of dramatically narrow lead wire and welding also greatly reduced the number of points, thus make the electronic components towards micro miniaturization, low consumption and high reliability have made strides. It in a circuit with the letter "IC" (also useful characters and symbols "N" etc) said.

IC characteristics

Integrated circuit has a small volume, light weight, lead wire and welding points less, long service life, high reliability, performance, and the advantages of low cost, easy to mass production. It not only at work, civil electronic equipments, such as radio, TV, computer, etc, and has been widely used in military, communication, remote control aspects also widely used. With integrated circuit to assembly electronic equipment, its assembly density than transistor can raise a few times to thousands of times, equipment, the steady working time can also be greatly increased.

Integrated circuit classification

(a) according to the function structure classification

Integrated circuit according to its functions, structures of different, can be divided into analog integrated circuit, digital integrated circuit and/mold mixture IC three integrated circuit classes.

Analog integrated circuit is also called linear circuit, used to generate, amplification and dealing with various kinds of analog signals (refers to the signal amplitude change over time. For example, the audio signal transistor radio signal tape recorders, etc), the input signal and the output signal proportional relations. While digital integrated circuit used to generate, amplification and dealing with various kinds of digital signal (refers to in time and amplitude values of discrete signal. For example 3G mobile phones, digital cameras, computer CPU, digital TV logic control and replay the audio and video signals).

(2) according to the production process classification

Integrated circuit according to production process can be divided into semiconductor integrated circuit and membrane integrated circuits.

Film integrated circuit and classification thick-film integrated circuits and thin-film integrated circuits.

(3) according to the develepment discretion classification

Integrated circuit according to the integration of different height can be divided

SSI small-scale integration circuit

MSI in scale integrated circuit

LSI large-scale integrated circuits

DFM VLSI circuits

ULSI super-large scale integrated circuit

GSI enormous scale integrated circuit is also called the great scale integrated circuit or super super-large scale integrated circuit.

(4) according to the conductive different types classification

Integrated circuit by conductive types can be divided into a bipolar type of integrated circuits and unipolar integrated circuit, they are all digital integrated circuits.

A bipolar integrated circuit production process complex, power consumption is larger, represent integrated circuits have TTL, HTL ECL, TL, STTL, developed - type etc. Unipolar type of integrated circuits simple manufacturing process, consumption is low, easy to made large-scale integrated circuits, represent integrated circuits have CMOS, NMOS and PMOS type etc.

(5) the end-use classification

Integrated circuit of the end-use can be divided into television with integrated circuit, audio with integrated circuit, VCD with integrated circuit, VCR use integration electric integrated circuits

Road, computer (microcomputer) with integrated circuit, electrotone with integrated circuits, TongXinYong integrated circuit, camera with integrated circuit, remote control integrated circuits, language integrated circuit, alarm with integrated circuit and various application-specific integrated circuit.

1. The TV with integrated circuit including travelling, field scans integrated circuits, putting an integrated circuit, sound integrated circuits, color decoder integrated circuit, AV/TV conversion integrated circuit, switch power integrated circuit, remote control integrated circuits, LiYin decoder integrated circuits, the paint of paint processing integrated circuit, microprocessor (CPU) integrated circuits, the memory of integrated circuits, etc.

2. Sound with integrated circuit including AM/FM stereo high and moderate frequency circuit, decoding circuit, audio preamplifier, audio operation amplifier integrated circuits, audio power amplifier integrated circuits, surround sound processing integrated circuits, level driver integrated circuits, electronic volume control IC, delay reverberation integrated circuit, electronic switch IC, etc.

3. VCD with integrated circuits have system to control integrated circuits, video coding IC, MPEG decoder integrated circuits, audio signal processing integrated circuits, acoustics integrated circuits, RF signal processing integrated circuits, digital signal processing integrated circuits, servo integrated circuits, motor drive IC, etc.

4. Video with integrated circuits have system to control IC, servo integrated circuit, drive IC, audio processing integrated circuits, video processing integrated circuits.

(6) according to the application field points

Integrated circuit according to application fields can be divided into standard general integrated circuit and application-specific integrated circuit.

(7) according to appearance points

Integrated circuit according to appearance can be divided into circular (metal shell transistor encapsulation type, general suitable for high-power), flat type (good stability, small volume) and double row straight interpolation type.