The so-called chemical preparations, in the most popular way, can be understood as they are "bubbled" in various special solutions.

The permutations and combinations achieved by using single-stranded DNA as a tool can also be simply understood as releasing a No. 1 "rope" at the place where the carbon nanotubes are to be placed, and then tying the carbon nanotubes with a corresponding No. 2 "rope".

These two ropes are complementary and can be connected to each other, so the No. 2 rope will tie the carbon nanotubes to the No. 1 "rope" together, so that the carbon nanotubes can naturally fall into the corresponding position as desired.

By adjusting these "ropes", it is possible to arrange carbon nanotubes into various shapes, as if a person can be tied into different positions with a single rope for PLAY......

Or like tying firewood, as long as there is enough rope, the firewood can be bundled as you want.

The premise of batch preparation of carbon-based chips is to achieve ultra-high semiconductor purity, sequential, high-density, and large-area uniform carbon nanotube array films.

Only by meeting the above requirements can it be possible to mass-produce carbon-based chips.

And if you want to reproduce the Oasis 1 in the system, it will take enough time to continue to develop on the basis of this implementation.

Chen Shen opened the materials sent by Wang Qian, which not only contained the most basic learning materials, but also the latest research materials at home and abroad, as well as the corresponding experimental data.

Among these experimental data, it is the most detailed in China, which can be said to be complete, and all the effective data generated by the experiment are sent to him without reservation.

This gave Chen Shen great convenience.

Because of the special situation this time, carbon-based chips have been researched by universities in China, and good results have been achieved, which fully proves their strength.

Therefore, Chen Shen does not plan to set up an additional chip laboratory for himself in the base, after all, there is already one on the side of the Old Summer Palace Vocational and Technical College, and it is a complete waste to add another one on his side.

Moreover, the process of waiting for the laboratory and team to be set up will also waste his time, and at the same time, it will also distract the main research force and cause a waste of research resources.

Instead of this, it is better to share a laboratory directly with the Yuanmingyuan Vocational College.

He can conduct any of the relevant experiments remotely.

And in some details, the team of the Old Summer Palace Vocational Institute must be more professional than him, and they can also give him more help.

Through the information and data in his hands, Chen Shen quickly understood the current situation of the development of carbon-based chips at home and abroad.

At present, the main players in the world's carbon-based chips are domestic and across the ocean, and other countries and regions are still saving ticket money.

And in the two players at home and abroad, the routes taken by the two sides are different.

Among them, the other side is more concerned about the compatibility of carbon-based chips with existing silicon-based chip processes, and they use the current standard EDA chip design software to prepare carbon-based chips using materials and processes compatible with silicon-based chips.

An integrated circuit consisting of 14,000 carbon-based transistors has been produced and is running successfully, but the performance is only at the level of silicon-based chips 30 years ago.

The biggest highlight of this technology is that it is done on a commercial silicon baseline, which can be applied to the industry faster, and the previous strong silicon-based chip manufacturing strength has laid a foundation that is too good for them to be better.

However, even so, there is still a long way to go for this carbon-based chip to truly reach the point of industrial production and market use.

Compared with foreign teams, the domestic Yuanmingyuan Vocational Institute team has taken another innovative path.

Starting from the aspects of carbon tube manufacturing, assembly process and component structure, they creatively developed a set of doping-free manufacturing methods for high-performance carbon tube COMS devices.

Recently, a breakthrough has been made by manufacturing a 5nm gate carbon nanotube CMOS device for the first time, which works twice as fast as the latest commercial silicon transistor in a toothpaste factory, but consumes only 1/4 of its energy, which shows that carbon nanotube CMOS devices below 10nm have obvious performance advantages over silicon-based CMOS devices.

Moreover, the team of the Yuanmingyuan Vocational Institute has a clear leading edge over foreign teams in terms of high-performance carbon-based transistors and high-quality carbon nanotube materials.

In addition, compared with foreign technical routes, domestic carbon-based chips are also very different in terms of production process.

The current carbon-based chip preparation process in China is still very rudimentary and primitive, and there is still a lot of room for improvement, which is probably like this:

The first step is to purify the carbon nanotubes to 99.9999%, commonly known as the purity of 6 9s, to obtain semiconductor carbon nanotubes, and only carbon nanotubes of this purity or above can be used in integrated circuits.

The second step is to use single-stranded DNA to control carbon nanotubes to build various structures required for integrated circuits, and automatically form corresponding assemblies.

At this point, all of these self-assembled assemblies are still soaked in solution.

The third step is to make the real circuit, which requires the DNA assembly to be built on the substrate in a regular manner.

This involves applying a film to the substrate, then using equipment such as a lithography machine to engrave a nanoscale pattern on the substrate corresponding to the assembly, and then dropping the solution containing the assembly onto the substrate.

In this way, the assemblies in the solution will be scattered on the substrate, but only the assemblies that happen to coincide with the nanopatterns will fall into the substrate, and the other unarranged assemblies will remain on the outer membrane of the substrate.

Finally, the film is removed, and the assembly can be arranged according to the required rules.

Yes, current carbon-based chips still need to use technologies such as photolithography and electron beam etching to obtain nanoscale electronic patterns.

It's not as easy as some people think, and you can get rid of all constraints by changing the material.

Because this microscopic processing capability is necessary for chips.

Even if you don't use a lithography machine, there will be a dark engraving machine and a bright engraving machine......

Chen Shen was also mentally prepared for this, but he still hoped to find a process that did not require a lithography machine.

After all, the processing capacity of nano patterns is not unique to lithography machines.

If he waits for the research and development of domestic lithography machines, it will be a complete waste of the carbon-based chip technology in his hands.

After reading these data, he continued to scroll down, and soon he found a different paper.

"DNA-Directed Nanofabrication of High-Performance Carbon Nanotube FETs"

This is also a paper published by a professor at the Yuanmingyuan Vocational College.

In this paper, a method of fixing and then rinsing was developed using the parallel carbon nanotube array prepared by the DNA template method as a model system, which improved the key transmission performance indexes of effect transistors based on carbon nanotube arrays by more than 10 times.

To put it mildly, at the interface of high-performance electrons and biomolecular self-assembly, this method can make nanoscale electronic patterns with scalable DNA biotemplates.

That is, there is no need for a lithography machine!