Integrated circuit design can also be called C large scale integrated circuit design (VLSI Design), which refers to the design process aiming at integrated circuits and C large scale integrated circuits. Integrated circuit design involves the establishment of interconnection models of electronic devices (such as transistors, resistors, capacitors, etc.) and devices. All devices and interconnects need to be placed on a semiconductor substrate material. These components are placed on a single silicon substrate through semiconductor device manufacturing process (such as lithography, etc.) to form a circuit.

Integrated circuit design

There are many classification methods of integrated circuits. According to whether the circuit belongs to analog or digital, it can be divided into analog integrated circuits, digital integrated circuits and mixed signal integrated circuits (analog and digital are on one chip).

Digital integrated circuits can contain anything, from thousands to millions of logic gates, flip flops, multitasking and other circuits on a few square millimeters. The small size of these circuits makes them have higher speed, lower power consumption and lower manufacturing cost compared with board level integration. These digital ICs, represented by microprocessor, digital signal processor (DSP) and single chip microcomputer, use binary to process 1 and 0 signals.

Analog integrated circuits, such as sensors, power control circuits and operational amplifiers, process analog signals. Complete the functions of amplification, filtering, demodulation and mixing. By using analog integrated circuits with good characteristics designed by experts, the burden of circuit designers is reduced, and there is no need to design everything from the basic transistors.

IC can integrate analog and digital circuits on a single chip to make devices such as analog-to-digital converter (A / D converter) and digital to analog converter (D / a converter). This circuit provides smaller size and lower cost, but care must be taken for signal collision B.

Wuxi Sijie Microelectronics Co., Ltd. (hereinafter referred to as "Wuxi Sijie") was established in 2017 and is located in Wuxi, Jiangsu, the national integrated circuit and Internet of things industrial base. Wuxi Sijie has been selected as a private science and technology enterprise in Jiangsu Province, and "Gazelle enterprise" has been selected and put into storage. It has successfully passed the certification of intellectual property standard implementation system in early 2021. Registered capital of the company: RMB 10 million only. Main business scope: the development and sales of integrated circuits and supporting products, and the provision of a full set of technical consulting and technical services in the above related fields.