5G in Longjiang ｜ 5G Future starts with "core"

When it comes to 5G, the first thing people think of is fast, and the high speed of 5G cannot be separated from the strong inner "core". The third -generation semiconductor material is the key to the production of 5G chips, and silicon carbide (SIC) is a typical representative of them. In the Science Semiconductor Crystal Lab in Harbin New District, the staff showed reporters the independently developed silicon carbide chip.

Keyou Semiconductor is a national high -tech enterprise that is mainly engaged in SIC substrate and equipment. The company's 6 -inch SIC single crystal developed by independent equipment and technology exceeds 32mm in thickness, breaking the long -term control of technical barriers in foreign countries. status. Zhao Lili, chairman and general manager of the company, told reporters that SIC chip is currently the world's most advanced third -generation semiconductor material and is an ideal base for making high -temperature and high -frequency high -power semiconductor devices.

As we all know, the vast majority of chips, semiconductors, electronic parts, etc. are made by silicon. Silicon -based devices are widely used in low -voltage, low -frequency, medium -power and other scenarios. However, with the development of new energy and 5G communications, higher requirements have been put on the efficiency of power conversion. Silicon -based devices have approached the physical limit. The third -generation semiconductor materials represented by SIC gradually appear on the historical stage, especially the particularity, especially the particularity. The advent of the Tesla Model3 model equipped with SIC power devices has made SICs successfully out of the circle, and major head car companies have begun to lay out silicon carbide power devices to mass production.

The thickness of 0.35 mm, about 3 pieces of A4 paper; 4 inches or 6 inches diameter, similar to a CD disc, this is SIC chip. And this is such a thin round piece, the market price is more than $ 1,000, and it is often "difficult to find".

The thickness of 6 -inch SIC single crystals developed by Keyou exceeds 32 mm

Why is the carbide chip so sought after? Zhao Lili said that compared to silicon materials, SIC materials have the characteristics of high temperature resistance, high voltage resistance, high frequency resistance, etc. In addition to electric vehicles and 5G communication, in the fields of smart grids, rail transit and national defense, aerospace and other fields, silicon carbide and other fields. The chip also has broad application prospects. Its research and application are of strategic significance and are regarded as an important support for the core competitiveness of the national new generation of information technology. "Equipped with SIC, electric vehicles are not only more energy -saving, but also improved the mileage of battery life. At the same time, it can achieve a more compact power system layout to provide more plenty of space for the vehicle; the production of LED devices, the brightness of the display will be higher, the life will also be It will be longer and can reduce energy consumption. "

Sciencey semiconductor has been committed to semiconductor crystal materials, especially the equipment design and development, key process technology research and development and scientific research results of the third -generation semiconductor materials. Zhao Lili told reporters that at the forthcoming World 5G conference, a sciencey semiconductor will show many excellent products including SIC long crystal furnace equipment, SIC single crystal and substrate materials including SIC long crystal furnace equipment, SIC single crystal equipment.

The reporter learned that at present, the chip made of SIC is mainly used in two aspects. One is used as a substrate to make radio frequency devices, such as 5G communication and base station construction. Another role is to manufacture electrical electronic devices, such as charging piles of urban high -speed railways, electric vehicles and new energy vehicles.

"The substrate is the base material of the chip. By performing extension, packaging and other processes on the substrate, the chip is finally made. For example, if the chip is regarded as an article, then the substrate is a paper for writing. Zhao Lili told reporters that at present, the mainstream size of global commercial SIC single crystals is 6 inches. The larger the size of the SIC single crystal, the more the number of chips that can be produced after making the substrate, the lower the cost of the SIC device. Zhao Lili revealed that the company is now developing an 8 -inch substrate development.

"The production of silicon carbide chips is inseparable from the long crystal furnace. Putting high -purity silicon carbide powder in the long crystal furnace is heated to more than 2,000 degrees Celsius, allowing the particles to vaporize directly, and then control it to recover, grow into a round cake -shaped crystal crystal Ingredients. "According to Zhao Lili, the silicon carbide induction long crystal furnace independently developed by Keyou has achieved 99%of the localized alternative of components. "Our long crystal furnace has unique advantages in terms of equipment costs, long crystal quality and efficiency, and field support costs. It has also reached and maintained and maintained the advanced level ","

At the same time as technology research and development, a Keyou Semiconductor has continued to move towards the direction of industrialization. At present, it has formed an independent intellectual property system from materials to substrates and equipment, and has large -scale production conditions. Zhao Lili revealed that the first phase of production workshops, office buildings and exhibition halls of the first phase of the semiconductor production and research agglomeration area of ​​the Keyou semiconductor industry, which is expected to be put into production within the year. It is expected that the production capacity of 200,000 to 300,000 silicon -based substrates in the next two years can be achieved. Become an important supplier of silicon carbide substrate.

In the context of global "carbon peaks" and "carbon neutralization", silicon carbide track has entered a period of gold. The goal of a sciencey semiconductor is also longer. "In the future, we will strive to achieve silicon carbide material end from material purification -equipment manufacturing -crystal growth -substrate processing — extension wafer chain closed, becoming a top -closed enterprise in the industry. At the same time, we will strengthen it Upstream and downstream research and development and industrial cooperation. In order to build a comprehensive, multi -field, and deep global semiconductor technology and industrial cooperation system, it has established a 5G innovation chain, industrial chain, and supply chain ecological platform to empower 5G to the industry. Contribution. "Zhao Lili said confidently.

- END -