From all-round academic master to chief scientist - Chapter 258 Crystal structure completed, photolithography machine assembly plan

After reading this letter, Lin Xiao felt a little emotional.

From between the lines, he could see the old man’s excitement.

Of course, for such veteran aviation people, they should be so excited that the J-20 has made such huge progress.

The performance of TA1000 is certainly the strongest in the world among all turbine fan blade materials. Otherwise, the J-20 would not be able to fly so fast.

The stronger the heat resistance of TA1000, the greater the thrust improvement. After all, every time the temperature in front of the vortex increases by 100 degrees Celsius, the thrust can increase by 10%-25%. As the turbine fan blade is the key material to withstand this temperature, TA1000 has no Doubts are extremely strong.

Lin Xiao, as the developer of TA1000, is very clear about this.

Because of what Academician Gu Song quietly said to him at the National Science and Technology Awards Conference, he has been paying attention to the J-20’s limelight in the past few days.

Seeing the J-20’s powerful performance also made him feel that the truth points he had spent were worth it.

Then he put the letter aside and opened another letter.

This letter is a local letter, that is, sent from Shangjing.

I don’t recognize the sender, Lin Xiao.

However, when he opened the envelope and took a look, he couldn’t help but be surprised. It was actually a thank-you letter sent to him by an Air Force general.

This general’s writing appears to be clean and neat.

[Professor Lin Xiao, thank you for your research, which has made our J-20 such an improvement. I wanted to meet you in person and express my gratitude to you, but your identity needs to be kept confidential, so I can only write a letter. I’ve given you the letter.

When the seas and rivers are clear and the mountains and rivers are at peace, I will thank you in person. Of course, I may not have this opportunity in the future, but I can still do it after I retire.

Hahaha……】

After reading this letter, Lin Xiao smiled again.

Haiyanheqing?

He believed there would be such a day.

And he is working hard on this matter.

Putting the two letters aside, he turned his attention to the screen in front of him again.

On the screen, a crystal structure made up of countless spheres representing atoms was displayed.

The structure of these atoms is very strange, but if you look at it, you will find the rules. If you look at it from a certain crystal plane, you will find that the atoms in each crystal plane are misaligned.

And this is a crystal structure that can amplify and shrink X-rays that Lin Xiao came up with after studying it for so long and after careful calculations.

Of course, this is just the result he calculated, and simulations are still needed to determine its actual effect.

“Well, now it’s time for the simulation.”

I found the option representing X-ray from the software, and then started to set the direction, angle, and wavelength of X-ray.

According to his previous calculations, in order to better exert the diffraction effect, the wavelength of the .

Therefore, the wavelength of X-ray should be 3.56nm.

This uses the diffraction effect, so it cannot be irradiated vertically like EUV light, but requires an angle. It is precisely the incident angle of X-ray that needs to be controlled to control the amplification and reduction of X-ray.

“Well, let’s start with an angle of incidence of 30 degrees.”

After inputting a few data, a thick dotted line representing X-ray appeared on the three-dimensional coordinate system in front of me. This thick dotted line shined straight into the crystal structure in front of me, and then X-rays began to shine in it. During the diffraction process, the thick dotted line was decomposed into several dotted lines, and then continued to penetrate inside, until finally, it penetrated the crystal, and finally formed a larger irradiation surface.

Seeing this scene, Lin Xiao smiled slightly.

Yes, just like in the calculation.

When the incident angle is less than 57.5 degrees, X-rays can be amplified, and when the incident angle is greater than this angle, X-rays will be reduced.

This amplification and reduction does not mean to amplify and reduce the wavelength of light, but to amplify and reduce the irradiation range of the X-beam, just like holding a magnifying glass under the sun to focus or diffuse. This is the same principle.

In this way, X-ray has the ability to be mass-produced.

He then continued testing, adjusting the crystal structure to change the incident angle, thereby achieving amplification and reduction of X-rays.

After many tests, it has been determined without a doubt that this crystal structure has reached the level he needs.

So, now the question is, how to produce such a crystal!

He had already chosen the element of this crystal, which was still silicon.

The number of electrons in the outermost layer of silicon is 4, which means that its plasticity is very strong. Although it cannot form a variety of allotropes like carbon, it is not impossible to achieve this through process design. In condensed matter and materials science, there is a concept called amorphous. Amorphous silicon does not have an extended lattice structure like crystalline silicon. The lattice network between its atoms is disordered. Using this principle, According to the special process design, the structure that Lin Xiao wants can be achieved.

As for why carbon is not chosen, it is because carbon atoms are too small. Even if you choose 10nm X-ray, it may easily pass through its synthetic lens, so silicon becomes the most suitable.

Judging from the current results, they succeeded.

“Well, it seems that in the next period of time, I will have to visit the laboratory frequently again.”

With a slight sigh in her heart, Lin Xiao glanced at Mimi, who was still sleeping next to her and had never known what work was. Lin Xiao couldn’t help but reach out and rub it.

“You’re such a lazy repair cat.”

Mimi woke up when he rubbed her, “meow”, raised her head slightly and glanced at Lin Xiao, then rubbed it on his palm, then turned over, revealing her furry belly.

Lin Xiao chuckled, but out of the corner of his eye he caught a glimpse of the letter from the Air Force Commander next to him.

The sea is still surrounded and the inland rivers are not clear, so we still need to work hard.

With his eyes fixed, he took out his mobile phone and made a call: “Zhao Sheng, the new model we built a few days ago has been improved by me in the past few days and has met our requirements. According to the simulation program, it can achieve Our requirement!”

Zhao Sheng is a domestic computational materials expert that he recruited. He is a professor in the Department of Materials at Qinghua University.

Having said that, he hired a lot of people from Beijing University and Qinghua University, and he didn’t know if they would be angry.

Well, we’ll talk about this later. He doesn’t care whether he’s angry or not.

At this time, Zhao Sheng’s surprised voice also sounded on the phone: “Professor Lin, have we succeeded?”

“Yes.” Lin Xiao said with a smile: “So, at three o’clock this afternoon, we will call everyone for a meeting to start our next stage, the design process!”

“good!”

Zhao Sheng immediately said excitedly.

After hanging up the phone, Lin Xiao did not leave immediately.

“The crystal structure is already available, as is the X-ray source. The dual workbench is still under development, but the progress is accelerating because of the new encoder.”

“These three most critical things can already see the dawn of success.”

“As for the remaining components, there is basically no shortage of domestic technology.”

The most critical technologies of the lithography machine are the light source system, the optical path, also known as the lens system, and the dual workbench system, because these three are the most precise structures that the entire lithography machine needs to move.

As for other parts, China is fully capable of producing them. Even if they are purchased from abroad, there will be no sanctions problem, because the technical level of other parts is not high. If they can’t even produce these, then they might as well just mess them up. .

And this calculation means——

“The plan to start producing various parts and prepare to assemble the photolithography machine should also officially begin.”

Lin Xiao’s eyes flickered slightly. Although there are still some technologies that need to be overcome, it also takes a long time to assemble the lithography machines. Asmail can only build dozens of lithography machines a year because of the lithography machines. Even assembling it requires a lot of precision. After all, slow work yields fine work, so even the installation of a screw will need to be done slowly.

It was obviously impossible for Lin Xiao to wait until all the technologies were conquered before slowly starting to assemble it.

Moreover, in China, he should also take full advantage of this kind of chess game.

Just like Huaxin Alliance, he established it with such advantages.

Therefore, it is now time for domestic manufacturers to prepare and start assembling lithography machines.

Of course, this matter also requires cooperation from above to facilitate him to mobilize resources from all parties.

It seems that I have to write an internal reference letter.

With this thought in his mind, he immediately found a piece of paper from the side.

He also has to write a letter.

As for what to write, it’s actually very simple.

[The technical breakthrough work for manufacturing lithography machines has reached the final moment. Now, the plan to assemble the lithography machines can begin. I sincerely ask the leaders to study and approve it. 】

After writing, he went downstairs to buy an envelope, stuffed it, and then called Director Ma: “Director Ma, I have something to ask of you.”

Director Ma’s excited voice immediately came over there: “Okay! That’s it! Do you want to meet at the same place?”

Lin Xiao was stunned, why was Director Ma so happy?

However, he didn’t pay attention and said with a smile: “No, no, I just wrote a letter. Of course, the matter is also important. I hope you can forward it to the superior.”

“Letter? Okay!” Director Ma said immediately.

Although they didn’t meet at the same place as usual, he believed that it was absolutely important for Lin Xiao to ask him for help.

Moreover, Lin Xiao said it was important and had to be handed over to the superiors.

That must be a great thing!

He believed in this very much.

So the two made an appointment and hung up the phone.

Lin Xiao also packed up his things and went to the research institute to prepare for the meeting.