Qin Haihua made such a big effort to acquire the Nice company and dismantle it back to China, of course, not only to produce a few IGBT chips to meet Zhou Linlei's needs, if so, he just found someone to purchase a few pieces abroad, where can he spend so much money. His acquisition of Nice is a fundamental purpose for the huge market of IGBT and intends to take a share of it, to do this, obtaining the equipment and patents of Nice is only the beginning, and there are more things to be done later.

The first problem he has to solve is to develop a new generation of IGBT technology based on the original patent of Nice company, and compete with several existing foreign manufacturers. Nice's patent system is different from that of large manufacturers such as Siemens and Toshiba, and it is suppressed by the technology of these large manufacturers, which is also the reason why Nice is in a difficult situation. Qin Hai knows that in fact, the patents of Nice Company have their own uniqueness, among which the ideas about transparent collector area, electric field abort, carrier storage and other ideas have later become the direction of IGBT technology breakthroughs, but the current technical staff of Nice Company can not realize the value of these technologies.

Qin Hai had some exchanges with the engineers of Nice in the UK and learned about some of their ideas, and after returning to China, he mixed these ideas with the content he had in his mind about the development direction of the next generation of IGBT technology, and gave a special report to the professors of the Semiconductor Center of the School of Physics of Beijing University. In fact, he is also ignorant of these semiconductor manufacturing process problems, but those ideas that are nearly 10 years ahead of the times provide a guiding light for the professors of the semiconductor center.

China's semiconductor manufacturing technology is more than ten years behind that of the West, but the gap in theoretical research is not so large. The professors have been immersed in this field for many years, and Qin Hai said some of the concepts. They are able to understand immediately and draw inferences. For a while, various solutions to improve IGBT continued to emerge, just waiting for this batch of equipment to be in place, and it can be actually verified for production.

It's not enough to solve the problem of product design. Production equipment is also an important bottleneck. It can even be said that it is more important than design. Qin Hai found Yue Kun, a mechanical expert, and asked him to take the lead in presiding over the "copycat" work of the imported equipment. It is said that it is a copycat, of course, it is not a simple imitation and copying, but on the basis of understanding the principles of foreign equipment, combined with new semiconductor processing theories, to develop its own equipment.

Qingfeng Machinery Group, a subsidiary of Daqin Group, was formed by merging several machinery enterprises in Beixi City on the basis of the original Qingfeng Agricultural Machinery Factory. In recent years, Blue Point Machinery Group has imported a large number of precision machining equipment from abroad. A strong equipment manufacturing capacity has been formed. Initially, Blue Point Machinery Group's main product was thermal spraying machines, but later it added a number of other material processing equipment, including semiconductor manufacturing equipment such as ion implanters designed and developed by the School of Physics at Kyungyang University. This time, Qin Hai arranged for Yue Kun to comprehensively copy foreign semiconductor machinery, and Qingfeng Machinery Group was Yue Kun's strong backing.

It is a large-scale project to independently develop IGBT technology on the basis of almost a blank sheet of paper, form the ability of mass production, and also achieve the localization of equipment. But. Tang Rongmin or Yue Kun. There are no complaints or worries about undertaking these tasks, but they are full of fighting spirit and passion. In their opinion, it is not a matter of how many years they will live to be able to do such a career in their lifetime.

Since the equipment was smuggled back from under the nose of the European Union by extraordinary means, it is not suitable for a short period of time to make a big noise. Qin Hai found a relatively remote place on the outskirts of Pujiang City as the site of a semiconductor factory. Pulling the tiger skin of the early Ming Dynasty, a guard platoon was transferred from the local military to be stationed around the factory to protect the secrets of the factory. For this matter, Ji Mingchu fully supports it. Because Zhou Linlei introduced to him, IGBT is a strategic product, and there are also a large number of applications in the military field, and high-power IGBT chips can be mass-produced, which is definitely beneficial to the improvement of military technology.

Qin Hai left after seeing the equipment unloading the ship, Tang Rongmin and Yue Kun were in charge of the affairs here, so he didn't need to worry too much. He hurried back to Anhe because of a good news from the School of Materials:

The graphene research led by Nie Sen has made breakthrough progress.

As mentioned earlier, the so-called graphene is simply a thin film material composed of a single layer of graphite atoms. Because its thickness is only the size of an atom, it is also called a "two-dimensional material". The concept of graphite is clear, but to actually make it, it is not so simple. The British scientist who first invented graphite thinning used the "tape tearing method", which uses a special tape to uncover the graphite layer by layer, and finally reaches a process with only one layer of atoms. This method is feasible as a real chamber preparation, but it is far from enough to be used for industrial preparation, and other methods must be developed.

The idea of developing graphene was proposed by Qin Hai to Nie Sen, and while proposing this idea, he also introduced some effective methods for preparing graphene to Nie Sen in later generations. These methods include three categories: solid-phase method, liquid-phase method, and gas-phase method, and each category contains several sub-categories, such as redox method and organic synthesis method in liquid phase method, chemical vapor deposition method and arc discharge method in gas phase method.

Nie Sen was originally an expert in nanomaterials and has extensive experience in the preparation of nanoscale materials. After receiving Qin Hai's principled guidance, he led his team to carry out arduous research. Qin Hai told Wang Xiaochen to give full protection to the expenditure of Nie Sen's team, and the money they spent also made Wang Xiaochen tremble. Fortunately, after more than two years of hard work, Nie Sen finally fulfilled his mission and completed the research of two industrial preparation methods, and achieved complete success in the small test.

Previously, in order to avoid being seized by powerful Western manufacturers, Nie Sen has been silent about the storage of graphene and has not made this important research result public. It wasn't until the industrial preparation method had been confirmed that he sent a crucial paper to the journal Science via e-mail, announcing to the world the birth of this miraculous material. At the same time as the paper was sent, the legal department of Daqin Group also submitted patent applications for graphene production process to patent offices in the United States, the European Union, Japan and China, and a medium-sized enterprise specializing in graphene production was quietly established in Cen City, An Ha Province.

Zhou Linlei was notified by Qin Hai, and he couldn't even wait for the estimated air ticket, so he directly took a military plane of the Navy and rushed to Hongze as soon as possible.

"Mr. Qin, what are you talking about, the lubricating material on the catapult has eyebrows?" Zhou Linlei strode into the conference room of the School of Materials, and before he could sit down, he couldn't wait to ask Qin Hai. Qin Hai did not mention the concept of graphene in the long-distance phone call, but only said that he had developed a lubricating material that could be used in the steam catapult of aircraft carriers, and asked him to come to identify it.

Seeing Zhou Linlei's eager look, Qin Hai smiled slightly, picked up a small piece of plastic film-like thing from the table, handed it to Zhou Linlei's hand, and said, "Zhou Gong, don't worry, you sit down and look at this thing first." ”

Zhou Linlei sat down, took the film, looked at it carefully, twisted it with his hand, and found something unusual. The thickness of this film seems to be only a fraction of that of an ordinary plastic bag, and Zhou Linlei is even worried that he can puncture it with a light force. But when he actually did it, he felt that its toughness was extraordinary, far from being comparable to real plastic films. What surprised him even more was that when he kneaded the film, he found that it was not a layer at all, but dozens of layers, and the layers could slide freely between them, and there was no gap at all.

"What kind of substance is this?" Zhou Linlei asked in surprise, he had realized the extraordinariness of this material, as Qin Hai said, this material is very suitable as a sealing and lubricating material for steam catapults, because it is thin and tough, and can withstand repeated friction without wear.

Qin Haidao: "This is a single-layer graphite film, and we named it graphene. The wear-resistant properties of graphite, Zhou Gong is very clear, we do this process, should be able to meet the needs of Zhou Gong, right? ”

"This still needs to be realized." Zhou Linlei said with a cautious attitude, and after that, he added: "However, if this material is graphite, in my experience, it should be able to meet our needs." ”

"Regarding its mechanical and thermal properties, we have done a comprehensive test, this is the test report, Zhou Gong can refer to it." Qin Hai handed a stack of materials to Zhou Linlei and said.

Zhou Linlei did not rush to look at the relevant numbers, but asked in surprise: "You developed this kind of thing just to use it as a lubricating material?" ”

"Of course not." Qin Hai laughed, "I'm not afraid that you will be angry, as a lubricating material, it is only the least important use of graphene." This material has excellent electrical properties, and Professor Nie's laboratory is still testing it, and we have proposed no less than 100 uses so far, each of which is much more valuable than being used as a lubricating material. ”

"I'll say it." Zhou Linlei didn't feel that Qin Hai's statement was disrespectful to him at all, as a senior scientist, he could fully imagine how much storm the advent of a new type of two-dimensional electrical material would set off in this field. (To be continued......)