Historically, there have been more scientists who have died in chemistry than in physics and other disciplines.

The reason is that even a fool knows that no one can predict what kind of chemical reaction will occur without experimentation.

In modern times, because of the complete range of instruments and equipment, the safety of chemical research has been guaranteed, but the safety protection must be done.

Putting on all the equipment, Zhong Zixing and a group of researchers entered the isolation room.

As soon as the entire isolated laboratory came into view, in addition to the usual research instruments placed on the side, the ceiling and the floor were crisscrossed with thick white pipes, which occupied almost half of the entire laboratory.

These pipes are where hydrogen fluoride gas flows, and there are also sealed utensils at some pipe interfaces to store fluorohydroacid, a special corrosive material formed when hydrogen fluoride is missolved with water.

Fluorohydroic acid is used for the etching and processing of semiconductors such as glass and monocrystalline silicon.

"Started ......" Zhong Zixing, as the commander of this test, immediately asked many personnel in the laboratory to prepare.

Ten groups are distributed in each link to start the production of hydrogen fluoride.

In fact, the production of hydrogen fluoride is no less difficult and can even be described as simple.

The step is to react with sulfuric acid with fluorite to release a gas, which is hydrogen fluoride, and then dissolve hydrogen fluoride with water to form fluorohydroic acid.

In terms of technical content and process content, it is several levels lower than that of photoresist and fluoropolyimide.

However, there is a well-known truth in this line of work...... That is, the production is produced, whether it is industrial-grade fluorohydrocarbonic acid, and whether it can be applied to the electronics industry, it remains to be studied.

China's fluorite reserves are tied with South Africa for the world's first, and it is not difficult to find raw materials, and there are many chemical plants for hydrogen fluoride, but there is a significant gap between the production and the foot basin chicken.

This brings us to the purification process.

Using the volatility and boiling point of hydrogen fluoride, hydrogen fluoride is purified by distillation, distillation, sub-boiling distillation, vacuum distillation, gas absorption and other technologies.

"Oxidize trivalent arsenic fluoride to pentavalent, and don't let it di......still with hydrogen fluoride," Jiang Haoran commanded another group of technicians.

"High purity water ready! When the hydrogen fluoride is distilled, it will dissolve immediately......"

"Filtration membranes to filter impurities ......"

The division of labor is clear step by step, and hundreds of technicians in the laboratory test and then fill the filtered fluorohydroic acid under the command of an orderly manner.

"How?" Jiang Haoran walked over.

Zhong Zixing shook his head helplessly: "It's too bad, the purity is only 95%!" ”

This purity, at best, is only a low-end product, and it can barely reach the second level among the four levels of hydrogen fluoride, which is about 4 points different from the ultra-pure hydrogen fluoride produced by the top process, which is a world of difference.

There are countless domestic manufacturers who can produce hydrogen fluoride of this purity, and it is meaningless to break the monopoly of the island country on the high-end.

How pure is high-purity hydrogen fluoride?

Pure to 99.9% can only barely be regarded as high-end......

The highest purity of the highest grade hydrogen fluoride produced by the footbasin chickens has reached a staggering purity of 99.99999999999% and even more!

Accurate to ten decimal places, eleven digits.

Don't think that there is no need to mention that it is so pure, in the case of countless complex and dense circuits carved into nanometers on a silicon wafer as large as a semiconductor fingernail, and billions or tens of billions of transistors are inserted, the auxiliary materials need to be pure, the purer the better, and the purer the particle size can be controlled.

100% purity is not realistic with current technology, the hydrogen fluoride production process can only be extended to indefinite decimal places, and the results of the first experiment of Neutron Star Technology can only be described as unqualified.

"Add another layer to the isolation door and at the same time open the filtration system in the delivery room to the maximum to prevent any dust from entering the ......"

"Throw out all the non-static materials in the lab!"

"Go on!" Zhong Zixing calmly ordered.

The equipment in the entire laboratory is top-notch, with a large number of precious metals such as platinum and gold, and stainless steel equipment with an anti-corrosion lining is added.

Because of the corrosive nature of hydrogen fluoride and hydrofluoric acid, general metal equipment cannot be used to produce high-purity hydrogen fluoride at all, and once used, it will aggravate the pollution of purity.

Therefore, the investment in such an ultra-clean laboratory is calculated in billions.

The external conditions can be called world-class, and such a desperate investment may only be able to do it in the world.

However, Zhong Zixing always believes in one sentence, all technologies cannot be improved or catch up, and the first constraint is that there are not enough krypton!

It's the same as most games, how do you get strong without kryptonite?

For the same example, the domestic aerospace industry has not caught up with Lao Mi so far, not because of lack of money?

If you dare to invest a lot of money in it, the technology will definitely accumulate little by little until it causes a qualitative change.

"Fluorite and sulfuric acid reaction preparation!"

"Collecting gas, high-purity water ......"

The boring experiment failed to discourage their enthusiasm, and everyone held their breath to sum up their experience in the repeated experiments, looking forward to the next breakthrough.

Zhong Zixing and Jiang Haoran soaked in the laboratory for ten days.

During this period, several other ultra-clean rooms next door also got their experimental data and added them to the purification of high-purity hydrogen fluoride.

Thousands of people are running at the same time, and I can't remember how many purification experiments have been done, but I know that under the research and development at any cost, the purity of hydrogen fluoride has been from 95% to 99.9%, and the decimal point is still extending backwards.

......

Beijing, Economic and Technological Development Zone, BOE Headquarters.

"This neutron star technology is really a bunch of crazy people...... How dare you play like this? Wang Dongsheng in the office laughed.

He got the first-hand news that Neutron Star Technology invested nearly 30 billion yuan in the Elemental Evolution Department, 20 billion yuan was used to purchase experimental instruments, and the remaining 10 billion was used for research and development.

One-third of the R&D funds are made of super photoresist and fluoropolyimide, and the remaining two-thirds are all invested in high-purity hydrogen fluoride.

More than half of the entire department, thousands of people are experimenting day and night, just like crazy demons.

"The point is that both the photoresist and the fluoropolyimide are at a super-first-line level, and we haven't even tested the limits of these two materials!" Vice President Liu Xiaodongdao.

"There's no need, in short, it's an indisputable fact to surpass our suppliers JSR, Dongjing Yinghua and Shin-Etsu!"

"Recently, Xiaomi Technology, a strategic ally of Neutron Star Technology, has been in the limelight, will our news steal the limelight from them......

"Hahaha, let's release it, from today onwards, we don't have to look at the faces of those devils anymore!!"

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