Material Empire

Zhou Linlei went to Anhe to work as the temporary chief engineer of Hongze Electric Machinery Factory, and even helped Qin Hai sing a play to deceive Liu Xuping, all because Qin Hai agreed to solve the technical problems related to the aircraft carrier catapult for him. Now that he has done what he should do, it is time to ask Qin Hai for a reward.

"Mr. Qin, I'm a dignified aircraft carrier engineer. I came here to play tricks for a small motor factory like yours. As the chairman of the board, how can you express it?" Zhou Linlei tried his best to put on an appearance of being very experienced in the world. Said to Qin Hai. However, his slightly flushed face exposed his truth. This old man is really not good at this kind of bargaining trick.

"Zhou Gong is very true." Qin Hai said with a smile, "In order to thank Zhou Gong for helping us, our group has specially prepared some Anhe local products. When Zhou Gong leaves, I will arrange for you Send it to the airport, and help you check it in, absolutely no need to spend a lot of effort."

"Souvenir products?" Zhou Linlei waved his hands again and again, "I don't want this."

"Why, does Mr. Zhou want cash? Oh, it's not convenient for us financially. How about I ask the accountant to figure out a way?" Qin Hai frowned falsely and said, in fact, there is no difficulty, it's just Qin Hai knew that it was absolutely impossible for Zhou Linlei to accept cash reward, even if Qin Hai wanted to, Zhou Linlei would not accept it, so he said this on purpose.

Sure enough, Zhou Linlei became even more embarrassed when he heard the word "cash", and his face turned purple: "Xiao Qin, please don't do this, I am here to help you under the instruction of Mr. Ji, and this is also my responsibility." If I take your money for my job, it will be a violation of discipline, which is absolutely not allowed!"

"You don't want souvenirs, and you don't want cash. What did Zhou Gong mean when he said it was a sign? I don't quite understand." Qin Hai said.

Zhou Linlei said nonchalantly: "Isn't this a very clear thing... You promised me a lot of things with Mr. Ji. Now that your problem has been solved, shouldn't it be time to think about how to help our army solve the problem?"

"Haha, it turns out that this is the case. Zhou Gong, you said that earlier, so it's all right?" Qin Hai said with a laugh.

"You little Qin, I knew you would understand. You just deliberately teased me, an old man, didn't you?" Zhou Linlei reprimanded pretending to be annoyed. He is over 50 years old this year, and he can call himself an old man in front of Qin Hai. up. Back then, it was not fashionable to pretend to be young, and everyone was proud of being old.

Qin Hai knew that Zhou Linlei was an honest man, and he put all his thoughts on his aircraft carrier business, so he couldn't pretend to be stupid anymore. He nodded and said: "Zhou Gong, don't worry, I have already started arranging this matter as soon as I returned to Anhe a few days ago. I have learned that the research on graphite lubricating materials has now made a great breakthrough , It is expected to see the finished products of industrial production within a year. The research work on supercapacitors has now arranged a team. Superconductivity research is carried out by the Superconductivity Research Center of Beijing University. Professor Zong Ze talked about it, and he is very confident. As for rare earth permanent magnet materials..."

"I have already discussed this with Mr. Sun Yuzhi. The cerium-based permanent magnet material he is working on now has great potential. I am very confident about it." Zhou Linlei replied for Qin Hai.

Qin Haidao: "Yes, I also talked to Professor Sun, he said that he already understands your needs, and will quickly transfer his energy to this aspect."

"This is great!" Zhou Linlei beamed with joy, "There are so many problems that I can't do anything about. I didn't expect to be able to solve them all here in Xiaoqin. No wonder Elder Ji values ​​you so much."

"Hehe, Zhou Gong, you haven't finished asking, don't you care about IGBT?" Qin Hai asked.

"IGBT..." Zhou Linlei shook his head, "This is a bit too difficult, and I can't bear it because it's all on you, Xiao Qin. You don't know, after I talked with you at Mr. I sent a report to the research institute, proposing to purchase some IGBT components abroad, and the research institute has already submitted this report to the Science and Industry Committee. We will definitely master the IGBT technology in the end, but in the short term, through procurement It is still feasible to make up for the technical deficiencies.”

The so-called IGBT is the abbreviation of "insulated gate bipolar power tube". In the simplest terms, it is a high-power electronic switch. . Compared with mechanical switches, the response speed of electronic switches can be as high as hundreds of thousands of times per second, and there is no worry of damage due to repeated switching. The triode in the radio is also a kind of electronic switch. IGBT can be regarded as a special kind of triode, which is characterized by higher withstand voltage, higher current, faster speed and better reliability.

The concept of IGBT was first proposed in the late 1970s, and was successfully developed by GE and RCA in the early 1980s. Since 1986, IGBT has been formally produced and gradually formed in series. In the following years, the technology of IGBT was continuously updated. In 1988, the first generation appeared, which was called the plane penetration type; in 1990, the second generation appeared, which was the improved plane penetration type; in 1992, it was the third generation, That is, the trench type; the fourth generation appeared in 1997, called the non-penetrating type; the electric field stop type appeared in 2001; the trench type electric field stop type appeared in 2003...

There is a reason why semiconductor manufacturers continue to introduce new ones in IGBT technology, that is, IGBTs are used in a wide range of applications. IGBTs can be found in all pillar sectors of the national economy such as rail transit, aerospace, electric power, and petroleum, as well as consumer electronics products such as frequency conversion appliances, digital cameras, and induction cookers. Such a huge market can naturally attract countless heroes from all over the world.

However, it is not easy to master the manufacturing technology of IGBT. IGBT is a device with a very complex working principle, which almost integrates the basic structure of all semiconductor devices. To manufacture IGBT devices that meet the requirements, a series of microelectronic manufacturing processes such as photolithography, oxidation, ion implantation, thermal diffusion, and deposition of polysilicon are involved. In order to reduce the on-resistance, engineers continue to reduce the size of the unit cells and increase the number of parallel cells. For this reason, the manufacturing process rules of the IGBT have dropped from 5 microns to 0.5 microns, and the chip size has increased from 4 inches to 6 inches. 8 inches.

All these production processes were very difficult for China at that time, and there was almost no possibility of a breakthrough in the short term. It is precisely because of this that Zhou Linlei does not place too much hope on Qin Hai. In his opinion, it is very valuable for Qin Hai to solve obstacles such as supercapacitors, superconducting coils, and permanent magnet materials. The difficulty was imposed on Qin Hai, it was a little too strong for others.

Hearing Zhou Linlei's words, Qin Hai smiled and asked, "Zhou Gong, the IGBT devices used in aircraft carrier catapults are not ordinary items. Can foreign countries sell them to us?"

"It's up to man." Zhou Linlei actually didn't have much confidence, so he could only reply, "It's really impossible to buy high-power IGBTs. There are some relatively low-power devices that can barely meet the requirements when combined in series. gone."

"But in this way, we are still under the control of others. Zhou Gong really doesn't want to master the core technology of IGBT by himself?" Qin Hai continued to ask.

Zhou Linlei said: "Why don't you want to? But, Xiao Qin, do you understand how difficult the semiconductor processing technology is? The difference between our country's semiconductor technology and foreign countries is not the slightest bit, and the technology in this area is not just a quick one. able to rush up."

"Zhou Gong is right." Qin Haidao, "However, we can give it a try. It is a pity that we completely hand over the IGBT market to foreign countries. In the future, we will develop our own power transmission and transformation technology, high-speed rail Technology, if the IGBT is completely in the hands of others, and they just grab our necks, we will feel uncomfortable."

"What are you going to do?" Zhou Linlei became serious, and he heard that Qin Hai was not just talking casually, but had some ideas of his own.

Qin Haidao: "I plan to take a two-pronged approach. On the one hand, I will mobilize domestic semiconductor research institutions and manufacturers to jointly tackle key problems, and on the other hand, I will introduce technology to shorten the gap between us and foreign countries. In three to five years, we will initially form our own IGBT Industry, first meet your own needs, and then consider catching up with the world's advanced level."

"I am afraid that the way of introducing technology will not work." Zhou Linlei asserted, "In fact, the Science and Industry Committee has already had this idea, and has also talked with several foreign companies that are leading in IGBT technology, hoping to introduce some technologies. .However, they are not willing to cooperate with us at all, and the issue of technology transfer is completely avoided.”

"I know this." Qin Hai said, "Foreign manufacturers see that we do not have IGBT technology, and hope to use this to sell us a high price. Of course, they will not be willing to transfer technology. However, if we directly sell What if the company buys it? Doesn’t it mean we have the final say on whether to transfer the technology or not?”

"Buy it?" Zhou Linlei clicked his tongue, "Xiao Qin, you are too whimsical, right? Several top international IGBT manufacturers are giants in the semiconductor field. Don't say they don't know how to sell, even if they want to sell. Our country’s financial resources can’t afford it, right?”

"Haha, Zhou Gong, you are really right. However, we can't afford these top manufacturers, can we try second-tier manufacturers?" Qin Hai asked with a smile.

"Why, Xiao Qin, do you have a goal?" Zhou Linlei couldn't help asking after hearing something in Qin Hai's words.

Qin Hai nodded solemnly, and said, "That's right, I've already set my sights on one, an old British semiconductor company, Nice Company."