After Shen Danqing was sent home by Liu Zeping, his family was very worried when they saw him languishing, but they all knew that they couldn't help him in the company's affairs, so they could only care more about him, ask for warmth, and don't let him do housework anymore, just let him rest. Even the little girl rarely focused on him, cared more about him, and sometimes deliberately seduced him at night. made Shen Danqing enjoy the rare blessings well. Shen Danqing feels like a plaque boat on the ocean, with a safe harbor that can dock at any time, this is home. If you have any grievances or difficulties outside, you can get the care and comfort of your family when you return home.

After a week, he finally had enough energy to think about his future development.

He found that if you want to follow the old path of Europe and the United States, then it is even more necessary to step up the research and development of related technologies. It's already too far behind, and you can't waste time.

So he threw himself into his work with even more enthusiasm. As soon as he got to work, he didn't consult anything and went straight to the Institute of Nonmetals. The director, Zhang Xiangdong, received him with trepidation, after all, the boss had been hit by a huge blow in their institute a week ago. Although he didn't know what the reason was, he knew that it was the only blow in his boss's life. He had never seen the boss he had seen before, and the boss he had met was always so wise and confident. The whole group, whether it is ordinary employees or high-level intellectuals, respect the boss like a human being, and it is simply impossible for anyone to achieve such an achievement as the boss at his age. There is no precedent in the world, and what is even more rare is that he is not only rich, but has led the company to reach the forefront of the country in terms of industrial science and technology. No one can ask themselves to be as successful as their boss.

"Boss, welcome to our institute, we all look forward to getting the boss's advice, so that we can make some progress. "Zhang Xiangdong is an out-and-out old fox, how can his words be so sophisticated.

"Since the last time I learned from here that carbon nanotubes still have many defects, I was hit all at once, but you can't relax your research, I can tell you clearly, in the future, carbon nanotube crystals are the best semiconductor materials to replace monocrystalline silicon, and its switching reaction speed is 1,000 or more than silicon crystals, and it is the most ideal semiconductor material for the next generation. However, it will take decades for you to continue to study, and that is why we cannot relax and start researching now. Speaking of this, he took a breath before he continued: "I came today for another important matter, the research of high-purity monocrystalline silicon materials is also the task of your non-metal research institute, have you conducted relevant research?"

"Of course, this is also our main research direction, but at present, we have only reached four materials of grade 9 purity, and we have encountered many problems, and there has been no progress for a while. Zhang Xiangdong knew that the boss hated dishonest people the most, so he didn't dare to hide it.

"How can this work, my requirement is to reach at least nine nines, what problems you encounter I will solve with you one by one, at present we are too far behind Europe and the United States, no time can be wasted, since Europe and the United States have been able to do it, and can be commercialized. It turns out that our method is wrong, and I will work with you to study and correct it. I'll be working here from tomorrow, I'll go back and sort out my thoughts today, I won't read it, let's see you tomorrow!" Shen Danqing knew that there would be such a result, because he knew many technical difficulties from the novels of the frozen people in his previous life. Seriously, the process technology is the most difficult to imitate, and people have slowly figured it out through decades of research, not everyone can learn it all at once, but fortunately, he liked to read industrial flow novels in his previous life and understand some fur. But it is precisely these skins that are the key technology for the manufacture of high-purity monocrystalline silicon. He had to go back and reminisce about it to see if he could remember, but things often didn't go as he wanted. He desperately recalled, and only remembered that the surface of the graphite crucible must be coated with a quartz layer, and the quartz layer must be coated with a bubble isolation layer, a special chemical solution here, and he didn't know what the specific chemical composition was.

There are domestic manufacturers of graphite crucibles that have been able to manufacture them, and he doesn't plan to do it himself, just buy ready-made ones. Even if China has been able to manufacture three-inch silicon wafers, he also wants people to contact him to see if he can pay for related technology. If you can't figure it out on your own. For the preparation of large-size silicon wafers, the most critical thing is the lifting control equipment, as for the temperature control and pressure control, 12-inch silicon wafers and three-inch silicon wafers are the same, there is no difference. Of course, there is also the most important magnetic field control, which requires the researchers under his command to experiment slowly, and there is no shortcut.

The next day, Shen Danqing really went directly to the Institute of Nonmetals. Zhang Xiangdong enthusiastically became his attendant, so that the boss could get answers faster.

"I'm not here today, you can take me to see your furnace for making monocrystalline silicon! See where the problem is, and we will solve it in the same way. After Shen Danqing finished speaking, he asked Zhang Xiangdong to lead the way, not dragging mud and water at all, and looking like a thunderous man.

The furnace for making monocrystalline silicon looks simple and unremarkable from the outside, because there is no fire, and Shen Danqing looks at it from the glass observation port, and it is also dark inside, and he can't see anything.

"Can you open it? I want to see inside. He asked Zhang Xiangdong.

"Of course, we have to clean every time we fill the material and every time we open the furnace, and we need to open the lid. Zhang Xiangdong was ready to answer for a long time, all the technical details had already been clearly understood, and he had memorized it well, so as soon as Shen Danqing asked, he could give an answer immediately.

There were already people waiting next to them, and when they heard the boss's order, they immediately controlled the crane to open the cover. Changsheng Seiko all the production workshops have crane cranes, this alone is much better than the vast majority of domestic factory conditions, most of the manufacturers in this period are using hand hoist cranes!

After the concerted efforts of many people, it took more than ten minutes to remove the screws and hang the cover with a crane crane.

When he saw the lid, he found the problem, there was no thermal insulation reflection function, and then he saw that the lifting mechanical control equipment was also manually operated. There was no need to look at it anymore, so he asked Zhang Xiangdong: "You bought this set of equipment from China!"

"Yes boss, we don't have the relevant preparation technology, only by purchasing, but because the equipment is too large, we can't buy advanced furnaces from abroad. ”

"This stove is completely substandard, but we can improve on it, and I took a cursory look and found several big problems. You can also take me to see the graphite crucible!" Shen Danqing was very dissatisfied with this stove and bluntly said that it had shortcomings.

"Oh, boss, tell us what you see, and we can improve it." Zhang Xiangdong heard that the boss had found a problem and hurriedly asked him.

"It's useless to tell you now, you need Changsheng Seiko to solve it, you don't have such technology. It's not your specialty. You'd better show me the graphite crucible first!"

Graphite crucibles are actually nothing to see, they are similar to steelmaking crucibles, but the requirements are higher.

"Is this how you directly feed and melt?" Seeing the crucible was not the goal, he mainly wanted to tell them the two methods he knew.

"yes! It's the best crucible we can buy. Zhang Xiangdong didn't know what the boss meant, so he had to tell the truth.

"No wonder your purity is not up to the requirements, as far as I know, the inner surface of the crucible must be coated with a layer of high-purity quartz, and a layer of chemical solution must be coated on the surface of the quartz layer during smelting, so that it can produce a foam isolation layer when smelting, which can prevent quartz from penetrating into the polysilicon, and the purity of the polysilicon can be greatly improved through these methods. In addition, in terms of high-purity polysilicon raw materials and seed crystals, we also have to find our own way, the domestic raw materials can not meet the requirements, and the purity of the current domestic preparation of monocrystalline silicon is only to reach the purity of six nines, which does not meet my requirements at all, and I require at least nine nines of purity. We don't care about the cost, we have to work hard in the selection of raw materials, and the chemical solvent will be purchased ready-made for the time being, and see if the chemical research institute can find a way to improve the purity, even if it is prepared by laboratory methods. We must first do it, and then find a way to reduce costs, and we will first find a way to buy higher purity abroad, anyway, there are not many. Okay, you go and tell Guo Dong of Changsheng Seiko to bring a few technicians over! I'm waiting here. Shen Danqing gestured with his hand as he spoke, and asked Zhang Xiangdong to make a call. In this era, it is a little inconvenient to have no mobile phones. If you want to make a call, you have to go to the office, Shen Danqing is too lazy to leave, so he asked Zhang Xiangdong to do it for him.

Shen Danqing waited for more than an hour before Guo Dong arrived in a hurry with someone.

"Boss, do you have anything we need to do?" Guo Dong asked knowing that the boss must have something for them to do.

"Come so fast! Come, I'll show you the growth furnace where monocrystalline silicon is made, and then I'll tell you what needs to be renovated. After Shen Danqing finished speaking, he took the lead and walked to the monocrystalline silicon growth furnace.

When they all came to him, he pointed to the lid hanging from the crane and said, "This cover needs to be equipped with a heat-insulating reflection device, like a condenser, to reflect the heat into the crucible inside." There is also a resistance coil in the furnace that should also be improved, (PS: Unlike the induction cooker used in steelmaking, polysilicon is a non-metal, so it can only be heated with a resistance wire.) To be able to automatically control the temperature with a computer program, the maximum temperature should exceed 1650 degrees. In addition, it is not enough to have a vacuum, it needs to be able to charge argon and be able to control the air pressure. A vacuum alone does not guarantee that there is no oxygen in it. On the outside of the furnace, a magnetic field needs to be created, which can effectively improve the lifting effect. The last and most critical modification is the lifting device, which you have to improve with your own technology and use CNC technology. These transformation tasks are very large, so you can just do it again! There will be a lot of experiments to be done, and you two should work together to slowly transform them!"

Guo Dong heard that his head was big, and he needed to transform so much, it was really better to do it again. He replied with a bitter face: "Boss, we don't have the slightest experience, we can only study thoroughly with the experts here, and master the growth principle of manufacturing monocrystalline silicon, so that we can make it, and we need time." ”

"Okay, Guo Dong, am I an unreasonable person? Of course I know that there are difficulties, so you should learn the principles first! Once you have mastered the principles, with your mechanical technology, it should not be difficult. I await your good news. Hearing Guo Dong's difficulties and grievances, Shen Danqing scolded him with a smile. To be continued