From Almighty Scholar to Chief Scientist

Chapter 249 Another verbal battle against the Confucians?
A few days later.

The internal meeting of Huaxin League initiated by Lin Xiao will be held soon.

As the chairman and chief scientist of the Huaxin Alliance, Lin Xiao has the full right to call this meeting if there is an important matter.

Of course, there are also many people who participated in this meeting. Basically, those who have time to participate have come to participate. Various institutions and enterprises in the Huaxin Alliance have sent people to participate.

Without him, their industry has just suffered another blow from abroad. Although it is only a blow to the light source and photomask, it still makes everyone feel a cold feeling.

One is an important part of the lithography machine, and the other is an important consumable for lithography, especially the photomask, which is particularly important. After all, the full name of the lithography machine is called a mask alignment exposure machine. It occupies a core position, and now they can't make masks in China. In the future, masks can only be imported from abroad. Although it was basically the same in the past, the share of domestic losses is real. , which means that the money is earned by foreign countries.

Therefore, such a meeting gave them a place to confide and seek a kind of peace of mind from their allies.

In the conference room, dozens of people were already sitting. Most of these people had sad faces, especially those who were able to produce photomasks. Of course, Yu Jiancheng, the general manager of Shanghai Silicon Industry who came to the meeting, did not worry about it. After all, they don’t have to worry about being sanctioned. The core technology is their own, so of course there is no need to worry.

However, the relaxed appearance of the two of them still attracted the attention of others.

"Academician Luo, I really envy your Institute of Optoelectronics."

The person sitting next to Luo Gangxian couldn't help saying, this is Wang Jun, an academician of Changchun Institute of Optics and Mechanics.

"What is there to envy?"

Luo Gangxian spread his hands and said with a smile: "Everyone is doing things for the country, there is nothing to envy or not."

Wang Jun said: "Your polishing technology, you can now be compared with Zeiss company, awesome."

"It's all due to Professor Lin Xiao, but I didn't provide any help." Luo Gangxian shook his head and said, "The most important thing is that I used to be able to be called the top polishing master in China based on my experience, but now Professor Lin just came up with a theory, and my experience is useless, and the ion beam is directly pointed at where to hit, and I don’t need to judge at all.”

Speaking of this, Luo Gangxian said again: "Of course, the most important thing is Professor Lin Xiao's eight-point structure encoder. Without this thing, the accuracy will not improve, and we will do the same. You should be more grateful to Professor Lin Xiao, right? If there is no Professor Lin Xiao, your servo motors may still be a problem at all, right?"

"That's right, but for this reason, we hope to get the help of Professor Lin Xiao." Wang Jun spread his hands and said, "I am engaged in semiconductor high-power laser technology, and now they are treating us with respect to the light source. Limitation, our laboratory can only use the previous things to study, the power of the EUV light source we are currently experimenting with is less than 40W, and now the excimer laser is restricted, and now we have to study the excimer laser from scratch, alas, Difficult."

"Hehe, maybe Professor Lin came to us for a meeting this time to solve this problem? After all, when he called us for a meeting two weeks ago, it happened to be the time when foreign countries announced increased sanctions."

"Hopefully."

Wang Jun shook his head.

At this moment, several people came in at the door, the leader among them was Lin Xiao.

After Lin Xiao entered the meeting room, he came to the first place and said, "I've kept you waiting for a long time. Since everyone has basically arrived, let's not talk nonsense. This internal meeting has officially started. This is also my first time. Call this internal meeting."

He smiled slightly, and then said: "Then the main discussion in this meeting is, under the new sanctions, our future semiconductor development direction."

Hearing Lin Xiao's words, everyone's eyes lit up, and they immediately became serious. For those present, they needed a backbone at this time, so that they could see the hope of success.

Seeing the reaction of the people present, Lin Xiao smiled, and without any hesitation, he directly gave them a strong report: "I think we should give up the EUV lithography machine."

The people present who were looking forward to it just now were stunned when they heard the news.

What?
Give up the EUV lithography machine?

Are you going to smash the jar?
Those present could not understand Lin Xiao's decision.

An older industry insider who seems to have relatively high qualifications immediately expressed doubts: "Professor Lin, I have no objection to your suggestion, but the road of EUV lithography has been proven to be correct. If we If we give up, where should we develop?"

Others also nodded, and someone also said: "I can't stop making chips, right? Or carbon-based chips? No one said that carbon-based chips don't need lithography machines!"

"Unless we can come up with double-digit nano-level printing technology, we can only do subtractive manufacturing, not additive manufacturing. Chips can all be realized."

The people present are basically scientists, and they all have a lot of understanding of these technical issues, such as carbon-based chips.

The so-called carbon-based chip can bypass the lithography machine, in fact, it is only blown out from the media. Any student who studies the lithography machine technology will know that the carbon-based chip is not inferior to the silicon-based chip, and no scientist has ever shown that it does not need light. Engraving machine, the main advantage of carbon-based chips lies in the advantages of carbon-based materials over silicon-based materials. The performance of carbon-based chips of the same specification can far exceed silicon-based materials, which can be increased by about 5-10 times, and power consumption can also be reduced. reduced to one-tenth of the original.

The problem of power consumption is a key problem in the chip industry. How to solve the problem of high power consumption of low-process chips is a very critical problem. This is the most important problem that limits the development of chips. For example, AlphaGo and Go champions play chess. At the same time, the power consumption of AlphaGo is as high as 20000W, and such a high power consumption is provided for the chip operation.

So carbon-based chips are good, but how to prepare them still has many problems.

As for 3D printing technology, it is even more impossible to manufacture chips through this additive manufacturing method. It will take at least many years of development to achieve the double-digit nanometer level. The current accuracy is only limited to the micron scale.

Therefore, the people present had such a huge reaction to Lin Xiao's decision to give up EUV lithography.

But Lin Xiao just smiled slightly when he saw the appearance of these experts in front of him.

It seems that there will be another verbal war against Confucianism.

Of course, just come.

Then, he said: "Everyone, I know the difficulties you mentioned. Of course, I never said that I would like to develop carbon-based chips, or what kind of atomic printing technology."

"However, achieving corner overtaking is a direction we must consider."

Speaking of this, he paused and said: "Foreign countries have occupied the EUV and DUV lithography fields for a long time, and imposed various sanctions on us, and they have implemented various suppressions on us by virtue of their patents. And we want to catch up on this straight line and catch up with them, which is full of difficulties."

"Besides, it's like a good saying, who doesn't accelerate in a straight line? The corner is fast, and it's really fast."

"So, while we are exerting strength in a straight line, foreign countries are also exerting strength along this straight line, so we cannot give up the opportunity to overtake in a corner. At least in the corner, there are not many foreign countries ahead of us, but if we On the curve, foreign countries have surpassed us, and in the future, we will lag behind by an unknown number of years.”

Listening to Lin Xiao's words, everyone present nodded silently.

They all agreed with Lin Xiao's words.

Those who are behind will always be behind. If you really want to catch up, it is very difficult. Although there are examples of shield machines, there are still too few such examples.

Therefore, they can only catch up and even surpass them by looking for technological bends.

"Professor Lin, tell me, what are you trying to do?"

Someone raised his hand and said.

Others also looked at Lin Xiao one after another, as long as it was reasonable, they were all willing to work hard.

Lin Xiao smiled and said, "What I want to do is a lithography technology that already exists, but has been ignored by us in the past."

"X-ray etching!"

The people below suddenly froze, and expressions of surprise appeared on their faces.

Lin Xiao knew what they wanted to say, the advantages and disadvantages of X-rays as a light source, and the people present were all people in the industry, of course they all knew.

After that, Lin Xiao just pressed his hand to calm them down, and then said: "We all know the advantages and disadvantages of X-lithography machines. The advantages are good collimation, no diffraction effect, and no need to worry about the power of the light source. Mask plate is required, the disadvantage is that the penetration is too strong, and it cannot be used for mass production, resulting in relatively poor economic benefits.”

"So, what we need to solve now is the mass production problem."

"As for mass production, I already have a viable solution."

Hearing what Lin Xiao said, everyone present was stunned.

Mass production with X-rays?

How to do?
"My solution is to use the crystal X-ray diffraction effect to realize the magnification and reduction of X-rays."

After Lin Xiaogang finished speaking, he immediately stretched out his hand to press down, because he also knew how much surprise he would bring to the people present after he said this sentence. Get restless.

Good guy, you said that the advantage of X-rays is that there is no diffraction effect, but now you want to let others diffract?

Although if it is really possible to zoom in and out of X-rays, it will be of great help, and they can even build you a lithography machine on the spot, because the X-ray lithography machine can abandon the EUV lithography machine. Many problems that need to be overcome can be realized in the simplest way, especially now that they have more sophisticated servo motors, and their mechanical precision has also caught up with foreign countries.

But the question is how do you do it?
Lin Xiao did not speak this time, but took out his computer and began to show his PPT to the people present.

"To control the diffraction of X-rays, we need to control the diffraction, which means that we need to find the law of diffraction. Then, next we will involve the theory in quantum mechanics."

Speaking of this, Lin Xiao got up, came to the projection screen, and said: "Maybe some academic words are involved, please understand."

"According to the Huygens-Fresnel principle, we can correctly explain and calculate the propagation of waves, and the Huygens-Fresnel principle can be regarded as the consequence of the isotropy of space, while in quantum electrodynamics, The isotropy of space is its key foundation."

【dψ(r)=-ψ0e^(ikr′)K(χ)dS/λRr′……】

"So, we can start there."

……

Most of the people below were stunned.

Why did they teach them a lesson when they didn't agree with each other?

All the people present were dumbfounded at this moment.

There are many scientists here, but not every scientist understands quantum mechanics.

Not to mention quantum electrodynamics.

For example, Yu Jiancheng, he is just a general manager, and he used to study materials, how can he understand these things?
Just seeing the first few formulas, he felt a feeling of returning to being dominated by physics and mathematics in his college days.

In the end, he gave up and turned to look at his colleague next to him. At some point, he took out his mobile phone and played mahjong.

Yu Jiancheng patted his head, what was he thinking, he said, "Don't you read what Professor Lin said?"

"Do you understand?" the man asked back.

"Uh, I don't understand." Yu Jiancheng spread his hands and asked again: "Didn't Professor Lin say that some academic language was involved? Why do I feel that what he speaks is all academic language?"

"What dot, it's obviously a billion dot, ten thousand times ten thousand is the billion."

Yu Jiancheng: "..."

Of course, there are still scientists who can understand the people present, especially there are many experts who study optics, such as the academician Wang Jun from the Changchun Institute of Optics and Mechanics. can understand.

He frowned and listened to Lin Xiao's narration. Lin Xiao's argument was profound and simple. Although it involved quantum mechanics and even quantum electrodynamics, he did some research on these.

The only thing that made him feel a little complicated were the formulas obtained by Lin Xiao in the calculation.

Although his math ability is much stronger than other people's, compared to Lin Xiao, it is obviously not good enough, and it can even be said to be weak.

Of course, fortunately, Lin Xiao gave a complete account of his formulas, without directly skipping over with words such as "obvious" and "well known".

Therefore, Wang Jun can still understand as long as he keeps up with his train of thought.

And as Lin Xiao went deeper and deeper, his eyes suddenly lit up.

It seems that this is really the method that can explain the nature of diffraction? !
(End of this chapter)