From all-round academic master to chief scientist

Chapter 248 It’s actually a string? !

Just when Wang Jun felt his eyes light up, Lin Xiao flipped over the PPT again, and a spectrum chart appeared on it.

The colorful spectrum of seven visible lights above, red, orange, yellow, green, blue, and violet, seems to form a wave-like image. This picture shows both particle and wave properties. It is equivalent to saying that human beings are in the same place. Time observes both particle and wave properties, instead of only particle or wave properties as in the double-slit interference experiment.

Wang Jun took a look and soon felt a sense of familiarity. He had also seen this picture completed by scientists from the Ecole Polytechnique Fédérale de Lausanne in Switzerland, so he immediately knew what this thing was.

But what can you see in this image?

This picture is just to test the wave-particle duality, and it has nothing to do with the phenomenon of diffraction?

Just when he was confused, Lin Xiao turned to look at the people present and said, "Everyone, you can do it now. This image allows us to observe the wave-particle properties of light at the same time, and then... uh."

When he turned around, he found that very few of the people present were listening to him. Most of the others were already distracted or playing on their mobile phones.

"It seems that what I said is still too complicated."

He smiled, but of course he didn't care. At least, there were still a few people listening.

When the people present heard what he said, several people said: "Professor Lin, it's our business not to understand what you said. We can just listen to the results then."

"Okay, let's get started."

Lin Xiao shook his head, and then continued: "Light, as an electromagnetic wave, has the characteristics of wave-particle duality. Although we are studying the properties of waves, we cannot avoid discussing the particle nature."

"With this diagram that can show both the nature of waves and particles at the same time, we can calculate how particles behave during the diffraction process of waves! Only in this way can we better explore the mystery of diffraction."

Hearing Lin Xiao's words, Wang Jun's eyes suddenly burst into light again.

right!

In the process of exploring wave diffraction, if they can analyze the behavior of particles, maybe they can actually study it?

But the question still arises, how to understand the behavior of particles during wave diffraction?

At this moment, Lin Xiao took out the chalk again and wrote a few formulas on the blackboard behind.

[∫|ψrad(θ,φ,r)|r……]

[ψ(θ)=exp(-πWθ)……]

【……】

“First, we can use these formulas to describe the wave-particle nature of this spectrum. Then, we can continue to use these formulas to describe the diffraction and interference phenomena I showed before. Come down, we will divide them separately..."

"OK, now, let's take the derivation of the remaining function. Okay, what we get now is the particle performance disclosure. Of course, this particle performance diagram is a special performance under these experiments, and As long as we realize from the special to the general——"

"Then, the diffraction of waves will be like being dissected, fully revealing the inner characteristics."

"By then, we will understand the law and nature of diffraction, and we can easily calculate what kind of crystal structure will help us control the diffraction of X-rays, and then synthesize this crystal, coupled with our existing polishing Technology, a crystal lens that can magnify and reduce X-rays, was born like this!"

"Next, we only need to use the help of computers to directly control the chip graphics from the light source, and then expose it on the chip."

"Furthermore, in the past LIGA process, our country already has SU-8 photoresist that can be used to expose X-rays. Therefore, we can say that as long as this crystal lens is constructed, we can start manufacturing Lithography machine! Once it’s built, we can start making chips!”

Lin Xiao's words immediately caused excitement among the people present.

Even those who were still playing with their mobile phones were attracted by Lin Xiao's words.

Start building lithography machines directly?

This is what they have been looking forward to for so long!

As a result, Lin Xiao now said that as soon as this crystal lens is developed, they can directly build a photolithography machine?

Wang Jun's eyes showed wonder. He believed what Lin Xiao said.

Changchun Institute of Optics and Mechanics, as a research institute that has accepted the task of manufacturing lithography machines, certainly knows the three key technologies that China's lithography machines currently lack. First, light source technology, but now if they replace it with X-ray light sources, these It will not be a problem. Secondly, it is the double workbench technology. However, the double workbench is just a thing similar to a mechanical arm. As long as the accuracy is enough, it is enough. Now there are new servo motors, which were not sold abroad in the past. They already have the technical potential to manufacture their ultra-high-precision servo motors, and their Institute of Optics and Mechanics is also developing them, and maybe they will be able to manufacture them next year.

Finally, the third one is lens technology and polishing technology. They already have it. Now if they can really create a lens that can magnify and reduce X-rays, all three technologies will be completed. As for the other parts, there will be no problem.

After all, China's basic strength is not false. Although in the past it was unable to build the lithography machine, the largest equipment in semiconductors, due to sanctions, the etching machine, the second largest equipment in semiconductors, China's technology can rank in the world. The forefront.

By then, when the three key technologies are in place, it will be entirely possible to build a photolithography machine!

Of course, the final key is that Lin Xiao can really explain diffraction.

Although the results Lin Xiao has shown now are already very profound, if he wants to break through the last few steps, he can't just say it will work.

"Of course, it will take some time to solve this problem, but please believe that this is the only way we can break through foreign sanctions and achieve overtaking in corners."

"Okay, I'm done. Do you have any questions?" Lin Xiao said.

Although most of the people below were still at a loss, they basically understood what Lin Xiao meant.

By solving a theoretical problem, they will have the opportunity to overtake in corners.

"Professor Lin, I just want to ask you a question. How long will it take you to solve this problem?"

Someone raised their hand and said.

Lin Xiao responded: "I can't give you the exact time, but even if it takes a year and a half, can't you guys still afford to wait?"

When everyone thought about it, it was indeed the case.

After being so many years behind and a year and a half away, why can’t I wait?

Then they thought about the time it took Lin Xiao to solve those important problems in the past. Maybe it wouldn't take a year and a half?

"Professor Lin, I believe in you and hope you can succeed!"

The person who asked the question nodded and said no more.

Others also agreed and expressed their willingness to believe Lin Xiao.

But at this moment, someone suddenly said: "Professor Lin, what about us? If you do this, does it mean that you have given up on our production of photomasks?"

Lin Xiao turned to look at this person.

It seemed that it was from a domestic photomask company. Lin Xiao asked: "Are you from Yiqing Optoelectronics?"

"Yes, I am the general manager of Yiqing Optoelectronics, Cao Zhiyang." The man said: "Professor Lin, if you want to build an X-ray lithography machine, are you abandoning our photomask manufacturer?"

Lin Xiao said: "Mr. Cao, I know what you mean, but if we can really build an X-ray lithography machine, we will indeed not need a photomask."

"How can this work!" Cao Zhiyang said: "Professor Lin, can't you think of a way to make the X-ray lithography machine need to use a photomask?"

Lin Xiao said helplessly: "Not using photomasks is our best solution in the face of foreign sanctions."

Others also began to speak for Lin Xiao, and Yu Jiancheng said: "Mr. Cao, aren't you trying to make things difficult for others? Foreign countries have already sanctioned your quartz materials, and there is no need for you to fight for these quartz material masks. Aren’t there still soda masks and other masks? You can’t wait for Professor Lin to help you solve the quartz material, right?”

"Why not?" Cao Zhiyang glared at Yu Jiancheng: "Professor Lin Xiao in your factory helped you solve polishing material problems and production process problems, why can't you help us?"

"Your company is not a state-owned enterprise!" Yu Jiancheng retorted.

"Does this mean your state-owned enterprises are bullying our private enterprises?"

Yu Jiancheng couldn't handle this, so he changed the subject and said, "I won't talk so much nonsense to you. We will give Professor Lin a production line worth several hundred million for him to test, and then we will spend money to buy new material technologies." Yes, you should also give Professor Lin several hundred million."

"Okay, everyone, there's no need to argue."

Lin Xiao interrupted their argument at this time and said: "Mr. Cao, we have to give up the photomask, so I will not spend time solving the problem of the photomask."

If you continue to stop, you will be disturbed by it, so you should stop thinking about these companies as soon as possible.

When Lin Xiao said this, Cao Zhiyang suddenly showed anger on his face, and finally said angrily: "Then we, Yiqing Optoelectronics, will withdraw from the Huaxin Alliance."

Then, he left the office directly.

When everyone saw this scene, they didn't know what to say.

The establishment of Huaxin Alliance was for the collective benefit. Now that the photomask has been abandoned, it is not surprising that Cao Zhiyang is angry.

However, for the collective benefit, the photomask must also be given up.

"Okay." Lin Xiao didn't pay attention to this episode and continued: "That's it for what I want to say. Do you have any questions?"

No one raised their hands.

"Okay, that's it." Lin Xiao stood up: "In the next period of time, I will devote myself to research on this issue, and I hope that you can make important breakthroughs in your field."

"The meeting is dismissed!"

…

At the end of this meeting, although the future is still bleak, at least X-ray engraving is not impossible, as long as Lin Xiao can create miracles again.

However, the withdrawal of Yiqing Optoelectronics still attracted people's attention.

Huaxin Alliance was established with great fanfare, but in just a few months, some manufacturers have withdrawn?

Moreover, it is also the leading domestic photomask company. Compared with other leading photomask companies and Instrument Optoelectronics, there is still some gap.

Of course, it is not just the withdrawal of Yiqing Optoelectronics. There is also a domestic photomask company called Luwei Optoelectronics, which is also a photomask company and has also withdrawn from Huaxin Alliance.

The withdrawal of these two companies has naturally attracted people's attention.

Cao Zhiyang, general manager of Yiqing Optoelectronics, also accepted an interview with reporters later.

In the interview, he bluntly said: "Professor Lin Xiao wants to build an X-ray lithography machine, and our photomasks have been abandoned!"

This sentence immediately attracted everyone's attention.

Lin Xiao wants to engage in X-ray engraving?

The photomask was abandoned?

People at home, as well as abroad, were shocked.

So close.

[What does it mean that Professor Lin Xiao wants to build an X-ray lithography machine? 】

This question has elicited answers from many people.

"As foreign countries impose more severe sanctions on us, Professor Lin Xiao either does it as a last resort or out of anger, but I have to say that this is a very challenging choice. 』

"The main problem that X-ray lithography solves is the problem of X-ray amplification and reduction. Only by solving this problem can the production efficiency of X-ray lithography machines be increased, and there will be great potential in the future. Moreover, because the energy of The efficiency is estimated to be higher than that of EUV lithography machines. But the most critical issue is how to solve it. If Professor Lin can really solve it, this will definitely be the best scientific and technological breakthrough of the year. 』

"It turns out that there is also X-ray engraving. Now that I have gained experience, I can only hope that Professor Lin Xiao can succeed." 』

…

In terms of business, industry insiders in China can only hope that Lin Xiao will succeed. After all, since Lin Xiao returned to China, his contribution to semiconductors has been obvious to all.

No one can deny his contribution to China Semiconductor.

As for foreign countries, although they were shocked, they were more ridiculed.

When Asmail and Dawson Edinson learned of the news, they publicly stated: "It is impossible for Lin Xiao to engage in X-ray lithography. The X-ray lithography machine is doomed to fail! Believe me, EUV rays The engraving machine is the most suitable solution and the most economical solution finally determined by thousands of our first-class scientists and engineers over decades. X-ray lithography will eventually be a joke! Even if Lin Xiao He is an outstanding, even great, scientist, but I believe that his wisdom alone cannot be compared to that of so many of our scientists!”

As the CEO of Asmail, Dawson Edinson's words are not arrogant, but the words in them make people don't know how to refute them.

Can Lin Xiao's wisdom be compared with tens of thousands of scientists?

Even within China, it has inevitably aroused people's pessimism.

Could it be that lithography machines can only take the path of EUV?

…

About half a month later.

Yanbeiyuan, the house that belongs to Lin Xiao.

He cares more about his own research than the reaction from the outside world.

After countless steps of calculation, he made an astonishing discovery.

"It's actually a string?"

Lin Xiao looked at the results he got, with a shocked expression on his face.

What causes interference and diffraction between waves is actually strings!