I add some practice in the real world

Chapter 367 366 Beyond Level 1 Cleanliness!
The young man named Xiao Li was in a hurry when he heard it, and hurriedly took out a portable air detection instrument from his backpack.

With a few beeps, the air detection instrument started to work, and the nozzle on the top of the instrument began to absorb and filter the air in the environment.

The working principle of this type of air detection instrument is to inhale a fixed volume of air within a certain period of time, and determine the cleanliness of the entire working environment by the number of detected particles.

Not long after turning on the instrument, the young man named Xiao Li's expression changed from frowning, to surprise, and finally to astonishment.

"So... Director, the cleanliness of the environment has exceeded level 1!" Xiao Li swallowed, his voice trembling a little.

It’s okay if it’s only a cleanliness level of 1, because such environmental standards can be seen in the sterile operating rooms of many hospitals and semiconductor factories.

What is Class 1 cleanliness?
That is, in a space of 1 cubic meter, there are no more than 10 particles with a diameter of 0.1 micron floating!

According to the current international standards, the cleanliness level is divided into 9 levels, and the number and diameter of particles in each level are gradually reduced, while the cleanliness level 1 is the highest set of standards in the entire industry.

This level of cleanliness has reached the point where it is almost sterile and dust-free.

However, according to the LCD screen on the instrument, not even a particle was detected in the air of this underground fortification.

Even the top foreign chip manufacturers cannot achieve such a terrifying air quality.

Because as long as people come in and out, it is easy to bring suspended particles, from water molecules brought out by mouth and nose breathing to dust, to bacteria, fungi, etc. attached to the surface of the human body.

In order to solve this kind of artificial particle transmission, major chip manufacturers will set up several layers of cleaning checkpoints at the entrances and exits of their factories.

From electrostatic dust removal to a complete set of protective clothing, every staff who can touch the lithography machine is fully armed, and the package is just like an astronaut going to outer space. The purpose is to prevent pollution to the working environment of the lithography machine.

However, this set of protective measures, which were comparable to a natural moat, was like a decoration in Chen Jue's hands, creating a more advanced clean environment with a wave of his hand.

Because the electric light that emerges from his fingertips not only absorbs and removes the dust and suspended matter in the air, but even those water molecules, bacteria, and viruses that cannot be seen by the naked eye are instantly broken down by the strong electric field and turned into The atomic form was sucked into the walls, the ground.

Under the powerful [Material Interference] skill, as long as Chen Jue is willing, all the matter in this underground fortification can be smashed into atoms, not to mention these particles with a diameter of micron.

"Can't even detect a particle?"

"This level of cleanliness, even AMSL's core laboratory can't do it!" The group of researchers from the Institute of Optoelectronics talked a lot.

Such a huge and exaggerated change naturally caused Lin Weiguo and others to be shocked, staring at the long string of zeros on the testing instrument for a long time without saying a word.

Coupled with a layer of full-surround epoxy anti-static coating that Chen Hao just rubbed with his hands, this underground fortification, which was originally backward and full of dust, squeezed into the world's top clean room in the blink of an eye. .

This kind of ability can no longer be explained by common sense, and it has completely exceeded the understanding of existing science and technology.

……

After solving the environmental problems of lithography machine production, Chen Jue felt the fiery gaze from Lin Weiguo and others.

Without too much explanation, he stepped forward and opened several huge material containers in front of him, which were densely packed with various raw materials for making lithography machines.

From special high-voltage transmission cables to extremely high-precision laser lenses, there are also several 3D printing machines used to manufacture photolithography machine parts.

After getting the notice from above, the Institute of Optoelectronics took out almost all the good things in their hands. Many of the materials were of laboratory confidentiality level, and taking out any one was enough to apply for patent protection in the market.

Of course, it is not so easy to manufacture a lithography machine with atomic-level precision.

You should know that even the current ASML company only masters the lithography precision of 2.5 nanometers, and the atomic-level precision is equivalent to a further improvement of 25 times on the basis of ASML's existing precision.

Calculated according to Moore's Law in the integrated circuit industry, it will take at least 18 to 24 months to double the precision of the semiconductor industry.

To improve the accuracy by 25 times on the original basis, if it is handed over to companies such as ASML for research and development, it will take half a century.

The technical gap here can no longer be simply measured by time, and only someone like Chen Jue who wants to overtake in a curve can do it!

……

Looking at the mountains of materials in front of him, Chen Jue touched his chin and fell into a brief moment of contemplation. Then he retrieved several lithography machine design drawings sent by Optoelectronics from his smart watch.

You must know that the operating principle of a lithography machine is nothing more than to irradiate a light source with a shorter wavelength on a wafer coated with photoresist to form a series of tiny transistor circuits.

The core component of the lithography machine is the laser light source. The shorter the wavelength of the light source emitted by the laser, the higher the precision of the final chip.

As for the most advanced laser lens on the market, it is not the well-known ASML company, but two companies with feet: Nikon and Canon.

Here I have to mention that at the end of the last century, the foot pot chicken was so powerful in the semiconductor industry that it was known as the semiconductor empire. It once occupied 80% of the world's share in the field of memory and chips.

At that time, the lithography machine was manufacturing this piece. How could there be anything to do with ASML in the windmill country?This product is completely transparent, and it can't be ranked in the semiconductor field at all!
The entire semiconductor industry is supported by Nikon and Canon. It is not an exaggeration to say that they are duo competing for "dad".

But scrambling and scrambling, this "dad" really came.

This "dad" is none other than Eagle Country on the other side of the ocean!
Yingguo saw that Nikon and Canon had developed a dog brain in the field of lithography machines, and immediately persuaded them to make peace: "You two stop arguing, Dad is here."

Then came a set of ancestral boxing methods, the eagle-style domineering punches, which directly issued anti-dumping tickets to the two companies and opened core patented technologies, and by the way, issued a 100% tariff ticket to the entire semiconductor industry.

After such a well-loved combination punches down, it directly wipes out half of the chip industry of the foot pot chicken.

After entering the 21st century, with the upgrading of semiconductor manufacturing technology, major manufacturers have higher and higher requirements for the precision of lithography machines.

Nikon and Canon, which suffered half-life after being hit by an eagle punch, have been stuck at 193 nanometer precision because of insufficient technical reserves and dare not innovate.

Because the lithography machines manufactured by Nikon and Canon are traditional dry lithography machines, which are limited by Moore's Law, if you want to improve the precision of lithography, you can only continue to polish the laser lens.

But for precision machining, the later the level of improvement, the slower it will be.

It took a few years like this, until Bay Semiconductor came up with a tricky solution: that is, at the moment when the laser is emitted, it uses water droplets to refract and shorten the wavelength of the laser.

At first, when Nikon and Canon engineers heard about this plan, they thought it was a lie?
After all, the lithography machine is a very precise instrument. After pouring water into it, no one can guarantee whether the lithography machine can continue to operate, so this plan was not adopted.

Coincidentally, the ASML company in the windmill country felt like a treasure when they heard about this plan, and gathered a group of engineers to tinker with the later famous immersion lithography machine.

Of course, Eagle Country provided core technology for ASML, and by the way, national laboratories from several countries participated in the research and development of immersion lithography machines, which led to the later extreme ultraviolet light, commonly known as EUA light. The birth of the lithography machine.

What makes Chen Juexian feel entangled is: "Should we use the traditional dry lithography machine or the tricky immersion lithography machine?"

Fortunately, this entanglement lasted only half a minute. After browsing the design proposals provided by Optoelectronics, Chen Jue muttered: "A bird in the hand is better than a hundred birds in the bush!"

"The direct dry type has a simpler principle, and it is not easy to be imitated."

After finishing speaking, Chen Jue clapped five fingers together, and the golden lightning flashed from his fingertips like a chain, covering several large material boxes in front of him at once.

Accompanied by the high-power input of plasma energy and the ability image of [matter interference], those originally cold cables, lenses, metal, rubber and other materials seemed to come alive, like Lego blocks, and began to follow Chen Jue With the idea of ​​​​putting together a pure white cuboid lithography machine.

The prototype of the lithography machine was based on the design plan of the Institute of Optoelectronics, but to be on the safe side, Chen Jue strengthened the stability of the internal power supply system.

And at the core laser component of the lithography machine, an ultra-miniature laser lens that is so small that it is difficult to see with an ordinary electron microscope is being built little by little under the interference of golden energy.

　Today's first update~ I was delayed by something in the first two days.

　
(End of this chapter)