Hand rubbing nuclear fusion live in the wilderness

Chapter 279 Breaking the Monopoly of Western Countries

After saving the 'laser generator' that had been prepared, assembled and tested, Han Yuan took the shooting ball to the storage room of the chemistry laboratory.

Pushing open the door, he first put on double film gloves, a mask and goggles, and then began to take out materials from the locker one by one.

The audience in the live broadcast room saw the appearance of the Korean won, and immediately knew that the raw materials to be used next contained toxic substances.

Sure enough, following what the Korean won took out, the audience in the live broadcast room saw a tan glass bottle being taken out.

There is also a white paper label on the glass container with a name on it: "Gray Arsenic".

【arsenic? 】

[What is this thing? 】

[It turned out to be this, no wonder you were so careful. 】

[Arsenic, commonly known as 'arsenic', is highly poisonous. 】

[It looks like you didn't take chemistry classes seriously in high school, and you don't know the famous 'arsenic'. In addition, you made a mistake upstairs, arsenic is arsenic trioxide, not arsenic. 】

[I haven't seen it before, anchor, can you take it out of the bottle and have a look?What do you look like? 】

[Speaking of arsenic, I remembered the ancient silver needle drug test, and then the chemical facts told me that the silver needle could not detect arsenic sulfide and arsenic trioxide at all. 】

[Arsenic: Dalang, it’s time to take medicine (ov)ノ]

[I, who was in the medical school, said that arsenic trioxide is a good thing, and it can treat acute promyelocytic leukemia. 】

[Is arsenic trioxide not arsenic?Can arsenic also cure diseases? 】

[I remember that Emperor Guangxu seemed to be killed by this thing. Experts identified his body and found a large amount of arsenic on Emperor Guangxu's body and burial objects, indicating that he was killed by Cixi. 】

[The same is the empress, Wu Zetian governed the prosperous Tang Dynasty, Cixi?hehe. 】

[Farewell, don't put the empress's name on Cixi, she deserves it? 】

【Stop talking, stop talking, I'm just greedy for your arsenic (╯▽╰) smells so good~~】

Before Han Yuan could explain, the emperors in the live broadcast room had already talked about it.

Han Yuan glanced at the barrage, and then continued to look for the materials he needed.

After all the arsenic, gallium, nitrogen, silicon and other materials were prepared and brought to a special chemical laboratory, he changed the protective clothing and activated the ventilation equipment to change the air in the entire laboratory.

The reason why it is special is because this chemical laboratory has four ventilation equipment, and ordinary chemical laboratories only have one.

This is where he handles various dangerous chemical test items. Many highly toxic materials were handled in this room or in the open air before.

After preparing the materials in order, Han Yuan said:

"Up to now, the progress of preparing the lithography machine has been smooth. Before that, I have prepared a laser generator that can be used as an engraving light source."

"Then what we have to deal with now is the various optical mirrors in the lithography machine."

"Different from the light mirrors that everyone usually understands, the light mirrors used in lithography machines are not ordinary glass mirrors, but a semiconductor material mirror called a 'Bragg mirror'."

"Everyone knows that light has various effects such as scattering, reflection, absorption, ionization, etc., especially the light source used in top-level photolithography machines."

"Like extreme ultraviolet light."

"Because the extreme ultraviolet light has only a wavelength of 120 nanometers to ten nanometers, it is a very good engraving knife on the lithography machine."

"But it is capable of ionizing nearly all the atoms and molecules that make up ordinary matter."

"This characteristic makes it unable to propagate in ordinary substances, including air, but only in a vacuum, so extreme ultraviolet light is also called vacuum ultraviolet light."

"And how to solve the application of extreme ultraviolet light on the lithography machine, then the vacuum condition and the mirror are the problems that must be solved."

"Of course, I am just taking extreme ultraviolet light as an example. The light source used in the lithography machine I am currently manufacturing is not extreme ultraviolet light, but an ordinary laser light source."

"However, the 'distributed Bragg reflector' that I will prepare next can be applied to extreme ultraviolet light."

Hearing this, the live broadcast room suddenly became lively, and various exchanges and discussions continued to amaze.

After all, this is Huaguo, and Huaguo has been struggling with lithography machine chips for a long time, even people who don't pay much attention to international events and politics know it.

When KRW said it was going to prepare a lithography machine during the live broadcast, most of the audience in the live broadcast room excitedly searched for information about the lithography machine.

Although most viewers don't know much about it, and it's not very detailed.

However, the importance of equipment such as light sources, lenses, and mirrors for top-level lithography machines is still known.

[I'm crazy, this is awesome, really awesome! 】

[One of the top technical cores of EUV lithography machines: optical mirrors. 】

[I did a bit of research before, and it seems that the only company that can make this kind of light mirror is Zeiss, which has a German history. 】

[Good guy, is Chase going to jump up and scold his mother now? 】

[Rounding up, can our country also make lithography machines? 】

[Four top optics companies: Zeiss, Leica, Nikon, Olympus, our school is using the 'Olympus CX33 microscope', Zeiss research-grade microscopes are too expensive, even 985-level schools can't afford them too much. 】

[My glasses are from Zeiss, they are not that expensive, they only cost more than 17 a pair, my sister gave me the pair (dog head)]

[My Cao, do you still need a brother-in-law upstairs?I can. 】

[Zeiss is really strong. The microscopes in the operating rooms of the top three hospitals in China are basically made by Zeiss. 】

[So, is the anchor going to break the monopoly? 】

[To be honest, I really don't believe that the anchor can make a reflector that can be used for extreme ultraviolet light. The environmental equipment is too simple. Optics is a cutting-edge science. The most important thing is that it cannot cheat. Only a little upgrade. 】

[Zeiss?I have never heard of Zeiss, but I am very familiar with what Aoi Division does. 】

[Upstairs, please take a step to talk (dog head)]

There was a lot of discussion in the live broadcast room, and everyone was very interested in the 'distributed Bragg reflector' that Won said.

Although I didn't understand, I was excited when I knew that the 'distributed Bragg reflector' could be used for the reflection of extreme ultraviolet light.

Although only one part has been solved, it is one step closer to the top domestic lithography machine.

Rounding off, there is a domestic lithography machine with a five-nanometer machine.

Compared with the extremely excited audience in the live broadcast room, the people from all over the world squatting in the live broadcast room are already stunned.

"Distributed Bragg reflectors for extreme ultraviolet light?"

"Can it be made in such a crude environment?"

"You don't even have a clean studio, can you make a top-notch Bragg reflector?"

"how can that be?"

"Impossible! Completely impossible! Unless this anchor creates a new type of preparation technology, it is impossible to do it with his current conditions!"

Experts and scientists from various countries who have judged the conditions and technology of the Korean won for a long time gradually began to doubt life after listening to it.

In particular, the relevant optical research and development experts of the Zeiss company in the Germanic country have been seriously confused.

Are top optical lenses so easy to make?

Or is it because human processing technology is too low?

But the physical properties can never be changed, right?
When the wavelength of the light wave reaches the extreme ultraviolet light wave band, most materials do not have good transmission characteristics, and the transmission optical system similar to DUV will no longer be applicable. This is a law of physics.

It's impossible to even break the current laws of physics, right?

Or, can this anchor use the crude equipment in front of him to achieve top-level processing?
But after thinking about it with his brain, the experts from Zeiss company rejected this idea.

The lithography machine that uses top-level short-wave extreme ultraviolet light, that is, the EUV lithography machine, has its own very unique difficulty in the off-axis reflection system, which cannot be achieved by ordinary projection lens processing methods.

For example, one of the difficulties: 'off-axis high-precision aspheric processing'.

If it is processed according to the axisymmetric aspheric surface, the caliber of this system will be super large, up to 540mm caliber, which shows the difficulty of processing.

And this is only axisymmetric processing. After the axisymmetric processing is completed, the outer edge can be ground to the off-axis lens state, which can ensure the processing and testing accuracy.

On the basis of this, the off-axis high-precision aspheric surface processing applied to the top EUV has made another quite difficult upgrade.

If it is processed according to a single off-axis aspheric lens, the lens size is basically the actual size, and the result will be much smaller than the complementary axisymmetric size.

But off-axis aspheric lens measurement is a big problem.

In addition, the assembly of the off-axis aspheric system is also a super difficult point.

Unlike DUV lithography machines, DUV's axisymmetric system is equipped with better measurement equipment support, so many countries can develop two-digit nanoscale lithography machines.

But when axisymmetric transitions to an off-axis aspheric assembly, centering can be very difficult because the apex position has been lost.

The total physical length of the light source system in the top EUV lithography machine is [-] meters, and the impact of off-axis eccentricity caused by inaccurate centering will be very serious.

There are many other problems, large and small, that cannot be counted.

For example, various problems such as the refractive index of the lens, light collection effect, penetration efficiency, absorption effect, etc. all need to be solved.

Otherwise, there will not be only one Zeiss in the world.

Zeiss can fully say that ASML's extreme ultraviolet (EUV) lithography machine would not be possible without their optical lenses.

This is the heritage, pride and arrogance of a company with a history of nearly 200 years.

But now, the person in the live broadcast room in front of him broke all this.

Using decades-old industrial equipment, state-of-the-art distributed Bragg reflectors can be fabricated, even for extreme ultraviolet light.

If it's not bragging, how terrible is his technology?
But the problem is that the other party seems to have never boasted.

Basically everything that came out of his mouth has come true.

Even in terms of the technology that has been displayed, it can be said to be extremely humble.

For example, the 'electrothermal-ion implantation method', this kind of chemical ion infiltration method that can completely replace ion implantation to a certain extent, the actual detection is far better than what the anchor said.

A top ion implanter manufacturer in Windmill Country even caused its share price to plummet because of the appearance of this method.

The kind that can't be pulled back by nine cows, is it their turn now?

Although the Bragg reflectors used in top lithography machines are only a very small part of Zeiss products.

But the overall stock price of the company will be greatly affected.

When other countries can also produce top-level 'Prague reflectors', the original monopoly status will be gone in an instant.

And monopoly is the most profitable.

For some countries and some companies, there is a cloud of gloom and chaos, but most countries are in a sunny mood.

Especially the East Asian monster circle.

The top lithography machine, you really can't buy it even if you have money.

Huaguo once spent [-] billion to buy an EUV-level lithography machine from AMSL a few years ago. However, the money has been spent in the past few years, and the goods still have not been received.

The most disgusting thing is that he doesn't ship the goods, and he doesn't refund the money.

Of course, if it is a mid-to-low-end lithography machine, it will not be restricted, but there is no substantive significance in purchasing such a mid-to-low-end product.

You put a low-end chip on a computer, mobile phone and other equipment, isn't that nonsense?Who wants it?
Even if it is patriotic, the money of the common people is not blown by the wind, okay?
In the simulated space, Han Yuan knew that his words would definitely cause huge waves in reality, but this was his intention.

The top 'distributed Bragg reflector' is one of the most important parts in top lithography machines.

Compared with light sources, Huaguo has no foundation in the preparation of top-level 'distributed Bragg reflectors'.

The science of optics is like this, it does not have any shortcuts, it can only go step by step step by step.

Just like Huaguo spent decades, countless manpower, physics and money, barely catching up with the front line in laser scientific research.

But this is only the laser field, and it is only catching up with the front line, not the top.

However, compared with various top-level lenses and reflectors, Huaguo still has some foundations in the field of laser light sources.

Therefore, when Han Yuan prepared the lithography machine, he chose to skip the light source, and focused on some areas where Huaguo was weak or even did not have it.

After preparing the materials, Won started the preparation of the 'Distributed Bragg Reflector'.

While starting to process the materials in hand, make corresponding explanations.

"The distributed Bragg reflector is a periodic structure composed of two or more materials with different refractive indices arranged alternately."

"The optical thickness of each layer of material is a quarter of the central reflection wavelength, and the periodic structure composed of alternating sequences is the main reason why it can reflect 'ultrashort-wave extreme ultraviolet light'."

"However, it is precisely for this reason that its preparation is much more complicated than that of ordinary lenses or mirrors."

(End of this chapter)