The newly designed silicon multiplexer chip of ultra-small silicon chip will promote the rapid development of 6G next-generation communication

A new design of an ultra-small silicon chip called a multiplexer will efficiently manage terahertz waves, key to next-generation communications such as 6G. Researchers from Osaka University in Japan and the University of Adelaide in Australia have collaborated to produce a new multiplexer made of pure silicon for communications in the terahertz range in the 300GHz band.

6G, the sixth generation mobile communication standard, is also known as the sixth generation mobile communication technology.The main promotion is the development of the Internet of Things [1-2] . As of November 2019, 6G is still in development. The transmission capacity of 6G may be 100 times higher than that of 5G, and the network delay may also be reduced from milliseconds to microseconds. On November 3, 2019, the Ministry of Science and Technology, together with the National Development and Reform Commission, the Ministry of Education, the Ministry of Industry and Information Technology, the Chinese Academy of Sciences, and the Natural Science Foundation of China, organized a 6G technology research and development kick-off meeting in Beijing.

Elemental silicon is known to be a grey, brittle, tetravalent non-metallic chemical element. 27.8% of the earth’s crust is composed of silicon, ranking second only to oxygen. Silicon is the most abundant element in nature. Silicon is found in quartz, agate, flint and common beach stones. Silicon wafers, also known as wafers, are processed from silicon ingots. Millions of transistors can be etched on silicon wafers through special processes, and are widely used in the manufacture of integrated circuits. Silicon is a semiconductor material, and its own conductivity is not very good.

To control the vast spectral bandwidth of terahertz waves, multiplexers for dividing and connecting signals are critical for breaking information into manageable chunks that can be processed more easily and therefore more Quickly transfer from one device to another.

So far, no compact and practical multiplexers have been developed for the terahertz range, the researchers said. The new terahertz multiplexers are economical to manufacture and will be extremely useful for ultra-wideband wireless communications. The shape of the developed chip is key to combining and dividing channels so that more data can be processed more quickly. Simplicity is its charm.

People around the world are increasingly using mobile devices to access the Internet, and the number of connected devices is multiplying. Soon, machines will communicate with each other in the Internet of Things, which will require more powerful wireless networks capable of transferring large amounts of data quickly. Terahertz waves are part of the electromagnetic spectrum, and their raw spectral bandwidth is much wider than traditional microwave-based wireless communications. The team has developed ultra-compact and efficient terahertz multiplexers thanks to a novel optical tunneling process.

In many computers, do you know what determines their running speed? Some people say, chips, the answer is right, and speaking of chips, we can’t help but talk about silicon chips. Looking at this silicon, in the computer field It has been dedicated for about half a century, and it has brought many opportunities to our computer development. Whether in graphics or digital computing, all information processing is composed of silicon, which shows how useful this material is.

And as human needs become bigger and bigger, natural science and technology will also progress, and the silicon chip that has been with us for more than 50 years seems to be powerless. More and more, according to Moore’s Law, in the future research and development, the silicon transistors on the silicon chip will not be able to be placed. There are too many reasons. In recent years, the silicon transistors on the silicon chip have continued to increase. Although It is said that there are still opportunities for development in the next few years, but it seems that we need to seek changes.

So what can replace the material of silicon? The answer is light. In the latest research, scientists have initially developed an optical chip, a chip that spreads, conceivably faster than a silicon chip. , and there won’t be too many transistors present. The operating speed of optical chips will be able to meet the current needs. With the influx of machine learning, if we continue to use silicon chips, it will be slower and slower, and optical chips are obviously more suitable for this environment.

There has always been a feeling that the chip industry has been banned, and the country is not impatient or impatient. In the first half of the year, I wrote an article about the innovative carbon-based chips of Peking University Peng Lianmao and Zhang Zhiyong’s team, and it was deleted. The news of carbon-based chips, combined with the comments of other netizens, can only be understood. In a word, the scientific research level of the motherland is really strong.

The easiest way to solve it with money is that ZTE was banned a few years ago, and they paid the fine and paid the deposit directly. ZTE survived, and the stock price even hit a new high. , negotiated many times, and got things done by paying money.

Although everyone has two attitudes towards ZTE after the incident, what ZTE has brought to our domestic high-tech chip industry is everyone’s vigilance and there is still a two-year preparation period. Looking back, many companies, including Huawei, should still be grateful to ZTE for blocking the first blow and buying time.

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