The unparalleled talent of the country started from Harbin Institute of Technology

Chapter 196, Where is your wife? (Subscribe)

"You mean Old Ten got into a fight, got stabbed more than a dozen times, and is in the hospital?"

At Wang Duoyu's home in the professors' villa complex on the Harbin Institute of Technology campus, he learned the news from Zheng Baoqiang when he rushed back.

At this time, the two sisters Wang Meihe and Wang Meili were extremely anxious.

The two sisters are close in age to Wang Duoshi, so naturally they have a good relationship.

Now that I know that Lao Shi is in the hospital and his condition is critical, I am of course very worried.

"Yes, uncle, but Tenth Uncle is out of danger and is now recuperating in the ward of Union Hospital. My brothers are taking care of him."

Zheng Baoqiang said so. He is quite honest and said everything he should and shouldn't say.

Previously, Wang Duoshi, Zheng Baoyin and Wang Jianchao all said that this matter should be kept confidential and not be told to Wang Duoyu so as not to worry his family.

But after returning to Ice City, how could Zheng Baoqiang bear it?

When they arrived at Wang Duoyu's house for dinner, they couldn't hold it in any longer and blurted out everything.

Upon hearing this, Wang Duoyu's face showed a murderous look, his brows knitted tightly, and he snorted:
"He only knows how to show off his bravery. Does he enjoy fighting so much? I'll let my eldest brother deal with him during the Spring Festival."

Wang Duoyu doesn't want to interfere too much with his younger brother.

A few years ago in his hometown, he beat a gangster named Zhang Jun so hard that he had to be hospitalized. After that, he became well-behaved, and Wang Duoyu thought he had turned over a new leaf.

I didn't expect that something would happen not long after I started doing business with Zheng Baoyin.

People like this, if they go out into the society and don't control their temper, will sooner or later die on the streets.

The twenty years from the 1980s to the 1990s were definitely a wild era.

How many people who like to fight and show off their bravery think they are invincible, but they have no idea that there are always people better than you, and soon they will die on the streets because of fighting.

Zheng Baoqiang was intimidated by Wang Duoyu's aura. His face turned pale and he lowered his head, not daring to say a word.

However, Wang Meihe and Wang Meili were very worried. "Nineth Brother, how about I go to the capital to see Tenth Brother?"

Both sisters wanted to go to the capital. They were really anxious to visit their tenth brother, not just to have fun.

Wang Duoyu shook his head and said:

"Don't worry about him. You don't need to go see him. He won't die anyway. If you are really worried, then call him."

"By the way, how's your conversation with your blind date going?"

Lin Dehong had previously introduced Wang Meihe to a blind date. Wang Duoyu had met the young man before. His name was Li Yuanchao, who was 23 years old and two years older than her.

"What can I do? It's just like that, like a piece of wood." Wang Meihe complained bitterly after hearing this:
"I really don't know where you found this person, brother. He's too honest. I don't like him!"

"Are you sure you don't like me?"

"Of course. He couldn't utter a word for a long time. He answered every time I asked him a question, and his face was red like a monkey."

puff!

Wang Meili couldn't help laughing and squealed like a pig. The little guy in her arms, Wang Junhong, also laughed.

Zheng Baoqiang tried not to laugh, but it was very difficult.

"Oh, since you don't like it, forget it. I'll call his boss right away." Wang Duoyu pretended to make a phone call, but his sister immediately stopped him:
“No, don’t.”

"Haha, I knew you were saying one thing and thinking another. Tell me, what do you think of Comrade Li Yuanchao? Is he any good?"

Ah!
Wang Meihe, who was cheated by her ninth brother, immediately became angry and didn't want to pay any attention to him.

After the laughter and play, Wang Duoyu found his sister after dinner and asked Wang Meili to take the little one back to the room to coax him to sleep, while he talked to his sister about her marriage in the living room.

Li Yuanchao is a very good person. It was Lin Dehong who introduced him. Wang Duoyu trusts him, and they have met before, so of course there is no problem.

The most important thing is that he is loyal, kind, and filial to his parents. Such a person has nothing to do with the word bad.

As for being shy and not talkative, these are not really disadvantages.

Anyway, as long as Wang Meihe is satisfied.

"Brother Jiu, I'd better get in touch with him a few more times before we talk about marriage after the Spring Festival, okay?"

"Okay, I won't force you, but you have to think carefully about whether you want to choose Li Yuanchao. If not, then tell me as soon as possible and I will quickly find you a second one."

After talking to his sister about her own affairs, Wang Duoyu never expected that she would turn the tables on him.

"Brother Jiu, are you and your sister-in-law having a conflict?"

"Don't worry about your sister-in-law and me. I can handle it myself. Help me take care of your nephew. As for your own studies and your relationship, it's good enough if you can handle it well."

After saying that, Wang Duoyu stood up, patted his butt and went back to the study.

Time flies. In the blink of an eye, a few days have passed. The final exams of Harbin Institute of Technology are coming to an end, and Wang Duoyu's courses are finally coming to an end.

Wang Duoyu took two courses, which started in mid-October and ended in mid-to-early January, a total of three months.

In just three months, he not only earned $2.59 million in tuition fees, but also taught several outstanding students.

"Maxim, you now have the opportunity to stay at Harbin Institute of Technology and consolidate the knowledge you have learned. As long as you can publish two or more papers in journals such as the Harbin Institute of Technology Mathematical Journal and the Mathematical Annals within six months, I will accept you as my student."

In the lecture hall, the last class had already ended. Wang Duoyu had made his statement to his student Maxim Koncevich clear by saying this.

Upon hearing this, the other students also raised their hands to ask, what about them?
"You are all the same. Anyone who can publish two or more papers in top journals and is under 30 years old has the opportunity to become my student."

Wang Duoyu's words seemed to be the same as what he had just said to Maxim, but in fact the requirements were completely different.

One is within six months, and the other is under thirty years old. These are two concepts.

The reason why Wang Duoyu asked Maxim to do it within half a year was because he was still young. As long as he became his student, he had the confidence that he could help him win the Fields Medal twice in a row.

Even three times.

But the prerequisite is that Maxim is willing to cooperate, otherwise Wang Duoyu cannot guarantee it.

The seeds of hope have been sown, and whether they can take root and sprout depends on the next period of time.

After Wang Duoyu walked out of the classroom, the bells indicating the end of the exams were heard in other teaching buildings, which also meant that the final exams were over.

Today is January 12th, and this year's New Year's Eve is on January 24th, so it is less than half a month away from the Spring Festival.

After the final exams, everyone went their separate ways, and the Harbin Institute of Technology campus soon became much quieter.

However, there are also many teachers and students who stay in school to celebrate the New Year, because many students whose hometowns are in remote areas will not go back even during the Spring Festival.

Take Lou Jianguo for example. His hometown is in Sichuan, which is very far away from Ice City. Of course, it is not suitable for him to go back.

After all, the round-trip train ticket is not cheap, and the journey is very tiring. It takes at least a week to get on the road. It is better to stay in school with this time.

Wang Duoyu is also on vacation.

Without classes, he has more free time.

In addition, many projects are on the verge of holidays and do not really need Wang Duoyu's technical guidance.

So he has been playing with his son these past two days, and in his spare time, he has been writing a book.

"Nine Brother, what are you writing about? The rise of great powers? Hey, why do these contents look so familiar?"

On the 18th, Wang Meihe saw her ninth brother typing on the keyboard in the study. When she walked closer, she found that he was writing a book.

Among them, the content being written is about America's development from an ant to an elephant, which involves the financial sector.

The book The Rise of Great Powers talks about the process of the successive rise of European and American countries such as Portugal, Spain, the Netherlands, Great Britain, and the United States, and summarizes the historical laws of national rise.

The economic section is Wang Duoyu's favorite part, because he will not participate in the parts related to politics.

The technology sector is what we are currently experiencing. There is not much to say about the previous technologies. After all, the first and second industrial revolutions are too far away from now.

The third industrial revolution began in the 1940s and 1950s of this century. It is based on inventions and innovations in scientific and technological fields such as space technology, atomic energy technology, and computer information technology, and has had a far-reaching impact on human society in all aspects.

This is also the era we are experiencing now.

When it comes to technology, it's a test of economic strength and national power, so accumulating strength is the serious matter.

This is also one of the reasons why Wang Duoyu likes to participate in the work of the four major teams of Huashun Company.

"It's right that it looks familiar. I've explained this to you before, but you tend to forget many of the key points after I finish explaining them. So I wrote them down so you can read them later. You must read them every day. I'll test you then."

Hearing his words, Wang Meihe immediately rolled her eyes:
"Humph, you only know how to exploit us two sisters. University students have winter and summer vacations, but why don't my sister and I have any vacations? Why are we so miserable?"

Depend on the government for your hard life!
However, in terms of diligence, the two sisters are indeed not as good as the students from Harbin Institute of Technology. It’s not that they lack intelligence, but that they lack concentration.

The brother and sister chatted for a while, and Wang Junhong suddenly used a big move, making the whole study stink. Wang Meihe had no choice but to carry the little one away.

The kid is just over one year old and can’t even control his poop and pee. What can we do?
Near noon, Zheng Baoyin and his colleagues all came back. Because the Chinese New Year was coming soon, they closed their business and all came back.

Wang Duoshi was not fully recovered yet, so he did not come back but stayed in the capital.

It is very uncomfortable to take the train now. Wang Duoshi has not been discharged from the hospital yet, so he can only stay in Beijing to celebrate the New Year.

It can be considered as escaping a disaster.

"Let's eat and talk."

With so many relatives coming back, Wang Duoyu did not cook for them at home, but went to the cafeteria.

Zheng Baoyin and the others had already told this before they came back, so Wang Meili called the canteen in advance and asked them to prepare the food so that they could start eating at the appointed time.

In the private room, Wang Duoyu had a brief chat with Old Wang's relatives, mainly talking about their situation outside over the past month.

After lunch, Wang Duoyu took Zheng Baoyin and Wang Jianchao to the next room and asked them to report the current situation.

"Uncle Jiu, we have earned a total of 180,000 yuan now."

Wang Duoyu was not too surprised when he heard this. Being able to make so much money was already very good.

Once the watch factory is acquired and put into operation, things will be different.

However, it would be better to place the watch factory in Ice City, because only in this way will it be convenient for Wang Duoyu to manage it.

Being far away in Chengdu, even remote management is quite difficult.

There is no way to discover problems in time.

"Okay, that's it for now. We can start preparing for the tasks after the Spring Festival now."

After Zheng Baoyin and the others finished speaking, Wang Duoyu began to give orders:

"After the Spring Festival, I will set up a company. I will be the chairman and general manager for a period of time, leading the company's development planning."

"You two will serve as deputy general managers. After six months or a year, I will step down as general manager, and you two will take up your positions based on your abilities."

"We will distribute shares in this company according to the investment amount and contribution, and we will all receive a portion of the salary."

"According to the plan, our company currently has two enterprises, one is the watch factory that we are about to acquire, and the other is a garment factory."

"Actually, I want to set up more companies, but you guys can't manage them all, and I don't have that much time. Eleventh or Twelfth, the two sisters, will also join the management team when the time comes."

Upon hearing this, Zheng Baoyin and Wang Jianchao were immediately excited.

They used to be guerrillas, but now they are about to become regular soldiers with titles, so of course things are different.

General Manager, Deputy General Manager!

In the past, Zheng Baoyin and others would not even dare to dream of such a position, but now it is within their reach.

Naturally, the two of them would not question Wang Duoyu's decision and just did as they were told.

"You two will still lead the sales team, but things won't be that simple after the New Year. You'll need to start dividing the team into different regions. We need to promote more products to more cities, so we need to expand and strengthen the team after the New Year. We need people we can trust so we can promote them."

"At the same time, after the watch and clothing factories are established after the new year, we will promote the products produced by our own factory."

"Of course, you don't need to worry about your products being unsalable. As long as the quality is guaranteed, there will be no problem making money."

The watch business is not too bad these days, because a wedding requires three wheels and one ring, and one of the wheels is a watch.

Moreover, after Wang Duoyu takes over the watch factory, he will definitely redesign the watch products, focusing on fashion trends, and also increase product marketing.

The garment factory is even simpler. It is the number one daily need among food, clothing, housing and transportation, so of course it is easy.

In fact, if Wang Duoyu didn't want to be so busy, he could still make a little money during this period before the New Year.

There are still many products that can be sold before the New Year, such as calendar cards or calendar books.

But it was a little late now, so he didn't think much about it.

However, after Wang Duoyu and Zheng Baoyin talked about it, they really wanted to do it.

"If you really want to make this money, then forget about this Spring Festival."

"Why celebrate the Spring Festival? Making money is more important. Uncle Jiu, just tell us what to do?"

Today is already the 18th, and there is not much time left.

And the printing house may even close down.

Of course, these are not a big deal for Wang Duoyu, because Harbin Institute of Technology has plenty of students and teachers.

Of course, these people also want to make money, so as long as they are paid, they are happy to earn this extra money.

So, after getting confirmation from Zheng Baoyin and Wang Jianchao, Wang Duoyu talked about it with Zheng Baoqiang, Wang Yufen, Wang Xiangdong and others. They were all very excited and expressed their desire to make this money.

Got it!
Then gather the men and get to work!
Wang Duoyu and his friends left the cafeteria at two o'clock in the afternoon. At three o'clock in the afternoon, a small team of more than twenty people had gathered in the mechanical department teaching building.

Zheng Baoyin and his colleagues have already left Harbin Institute of Technology. They are gathering the sales team to prepare to win the next calendar card war.

Wang Duoyu specifically hired someone to design calendar cards, and found photos of Hong Kong and Taiwan stars such as Teresa Teng, and printed them directly on the calendar cards or calendar books.

There are two types in total. One is a large calendar hanging on the wall with only twelve pages. Each page has a different Hong Kong and Taiwan star to meet the needs of ordinary people.

The other type is a calendar book, which is thick with more than 300 pages. In this type, only the cover has Hong Kong and Taiwan stars.

The prices are also different. The calendar book costs two dollars, while the calendar notebook costs three dollars.

In just one afternoon, Wang Duoyu and his team had completed the design and printing. The product was freshly baked, and then they immediately started the machine to work.

Wang Duoyu was the first to invest the money, and the teachers and students of Harbin Institute of Technology were paid a salary of 20 cents for each calendar or calendar book produced.

Not too little.

Anyway, it probably sells well during the period before New Year's Eve, but it becomes difficult to sell after the Spring Festival.

Moreover, the prices of two and three yuan may not seem expensive, but they are only for city dwellers. In rural areas, no one would be willing to spend this money.

So the sales results will not be very good.

On the morning of the 19th, Zheng Baoyin and a group of people came to the teaching building of the Mechanical Engineering Department of Harbin Institute of Technology and took away more than 830 calendars and calendar books produced last night.

They sold out in one morning.

No one expected that calendars and other things would sell so well.

They just sold it in places with a lot of traffic, such as train stations, and the sales speed was astonishing.

In the morning, the Department of Mechanical Engineering only produced more than 300 copies, so there would definitely not be enough to sell in the afternoon.

So at noon, the Department of Mechanical Engineering gathered more than fifty people to help with production.

By the 20th, the machines had been running all night and all the materials had been produced, with a total of 10,300 copies.

Seeing this, Wang Duoyu decisively ordered Zheng Baoyin and his team to take these products directly to other cities hundreds of kilometers south for distribution. At the same time, he also ordered the Mechanical Engineering Department to continue production at full capacity.

In the five classrooms of the Mechanical Engineering Department's teaching building, there are more than seventy students and teachers, working in three shifts, and each of them is very happy.

People like Lou Jianguo and Tian Maohua, who did not go back to their hometowns to celebrate the Spring Festival, also joined in to earn some extra money.

A calendar costs 20 cents, so 10,000 copies is 2,000 yuan. If they divide it among 70 people, each person can get about 28 yuan.

And this is just one or two days' salary.

So everyone was very happy.

By the 23rd, the Department of Mechanical Engineering had produced more than 120,000 copies, but Wang Duoyu still did not call for a stop.

Instead, they have already rented a factory outside, and it depends on whether Lou Jianguo and others are willing to continue working overtime.

Except for some teachers who chose to withdraw, more than 50 people were willing to work.

Therefore, production will continue during the Spring Festival.

Of course, while they continued to produce and sell calendars, Wang Duoyu got on the bus back to his hometown at 12:30 noon on the 23rd.

Zheng Baoyin and others are still traveling outside and will definitely not be back during the Spring Festival.

Following Wang Duoyu's instructions, they rushed to major cities such as Beijing, Shanghai, Nanjing, and Hangzhou. One hundred thousand calendars were just the starting point, and two hundred thousand was not impossible.

However, the specific sales situation after the Spring Festival depends on the market response.

In short, if they have any latest news, they can just call Wang Duoyu at any time.

In Dahonggou Village, Wang Duoyu and his two siblings returned with the little guy Wang Junhong. Zheng Baodong did not return as he had gone to the factory to work overtime to earn money.

You can earn about thirty yuan a day, who doesn’t want this money?
Besides, such good things don’t happen every day, and there will definitely not be so many after the Spring Festival, so you should earn as much as you can before the festival.

As for the Chinese New Year, it doesn’t matter where you celebrate it.
After the relatives and elders of the Wang family learned about this from Wang Duoyu, they all had different reactions.

The younger generation all agreed very much and even asked Wang Duoyu if there were any other opportunities like this.
They are fed up with living without money.

Anyway, we are in the era of reform and opening up now. Everyone can go into business and making money is a natural thing.

Unfortunately, they don’t have the chance for the time being and can only wait until after the Spring Festival.

Wang Duoyu’s eldest brother, third brother and other older generations did not quite agree, because the Chinese New Year is a time for family reunion, so how could they not go home?
However, no matter what their opinions are, Wang Xiangdong, Wang Jianchao and the others are still outside and have not returned, and it is impossible for them to come back now.

"Laojiu, where is your wife?"

The third brother suddenly asked a question, and the scene instantly became quiet.

"She didn't come back because of something." Wang Duoyu's smile was normal, but it was because of this that his elder brother and third brother noticed something was wrong.

But this is Wang Duoyu's own business, and outsiders can't say anything.

The next day was New Year's Eve. Wang Duoyu and his son slept in the wooden house all night. When they woke up, the house was still warm.

Because Wang Duoyu got up in the middle of the night to add coal, otherwise the house would have become cold long ago.

In the winter in the north, it is very cold outside. If you don’t light a kang indoors, you can’t sleep at all.

Wang Duoyu's house is a wooden house with thick walls, so it is very warm inside.

After picking up the little guy and washing him up, his two aunts came over.

"I'm really not used to it without you guys. Please help me take care of the baby."

Seeing his two sisters coming over, Wang Duoyu felt relieved.

He really wants to be a good dad, but the little one is too noisy and not very obedient, especially when getting dressed, he keeps twisting his body and won't cooperate at all.

The little guy even thought his father was playing with him, and he was even happier, kicking his legs hard.

"Whee!"

The two sisters immediately covered their mouths and laughed secretly. Their ninth brother was not omnipotent.

On New Year's Eve, Wang Duoyu did not write anymore, but was busy working and preparing the New Year's Eve dinner.

But at noon, Wang Duoyu never expected that Liu Xiaoli would appear in Dahonggou Village.

"Happy New Year, Professor Wang, long time no see"

Liu Xiaoli's sudden visit attracted curious glances from Wang Meili and her two sisters, Xue Yuqing, Wang Shuting and other relatives of the Wang family.

No one knew that Wang Duoyu had divorced Zhu Ling, let alone his relationship with Liu Xiaoli.

On a special holiday like New Year's Eve, Zhu Ling did not go home with them, but Liu Xiaoli came. The gossip fire in Wang Meili and the others' eyes was already burning.

There is definitely something weird going on here!
"Sister, do you think Brother Nine is having a conflict with Sister-in-law? Or maybe they've even divorced? Otherwise, why would this woman come to our house?"

Wang Meili couldn't help muttering as she looked at her ninth brother and Liu Xiaoli standing and chatting in the corner not far away.

Her sister Wang Meihe didn't say anything, but her eyes were always fixed on her ninth brother and Liu Xiaoli.

It's even more strange for little boys like Xue Yuqing.

"How did you come?"

Wang Duoyu was very surprised by Liu Xiaoli's sudden visit.

"That's how I came here. My family went back to my uncle's house to celebrate the New Year this year. Mainly because of my father's work, he couldn't celebrate the New Year with us this year, so we came back here."

This is one of the reasons. Another reason is that Liu Xiaoli is being urged to get married.

Her parents and relatives were pushing her hard, so she had some minor conflicts with her family and was not very happy.

Liu Xiaoli didn't know about Wang Duoyu and Zhu Ling's divorce, so she was quite conflicted about whether she should continue waiting.

"Oh!" Wang Duoyu nodded, not knowing what to talk about.

Liu Xiaoli took the initiative to ask why she didn't see his wife?

"In the capital."

"Isn't it Chinese New Year? Why didn't she come back with you to celebrate the festival?" Liu Xiaoli was immediately surprised.

But Wang Duoyu did not explain, and said:

"Come in and sit inside. It's cold outside. We're ready to eat. Do you want to join us?"

This is the basic way of hospitality. Well, it is actually a polite remark, but also an order to leave.

However, Liu Xiaoli is very brave. Now that Zhu Ling is not here, why can't she stay for dinner?
It’s just lunch on New Year’s Eve, not the New Year’s Eve dinner, so what are you afraid of?

"How can this be so embarrassing?" Liu Xiaoli also said politely, and then she saw the little guy Wang Junhong and immediately smiled:
"Junhong, do you still remember your aunt? Come, let your aunt give you a hug."

Wang Duoyu: “.”

No, you say you're sorry, but why is your body so honest?
What the hell!

So, Liu Xiaoli was the happiest person during this lunch, and Wang Meili and her two sisters were also very happy. Only Wang Duoyu had no appetite.

After lunch, Liu Xiaoli sat for a while until she left reluctantly at three o'clock.

As soon as she left, Wang Meili and her two sisters surrounded their ninth brother and started gossiping.

Unfortunately, Wang Duoyu couldn't say a word. If he got angry, he would threaten them with homework, so the two sisters couldn't do anything about him.

The New Year’s Eve dinner will be served soon.

For this year's New Year's Eve dinner, many of Lao Wang's relatives came to join in the fun.

Wang Duoyu prepared quite a bit of food. He and his two sisters made the New Year's Eve dinner together. The troublemaker Wang Junhong asked Xue Yuqing and other little kids to help take care of the meal.

After eating the New Year’s Eve dinner, the New Year is almost over.

We received red envelopes, set off fireworks, and listened to stories, and around nine o'clock it was almost time to go to bed.

There is no Spring Festival Gala yet, so there are not many activities on New Year’s Eve, and it is even particularly boring.

If you are in the south, there are many more activities.

The Spring Festival in the north would be boring without the Spring Festival Gala, but in the south, the Spring Festival Gala is somewhat redundant.

After the Spring Festival, on the morning of the third day of the New Year, Wang Duoyu prepared to return to Harbin Institute of Technology.

Zheng Baoyin and his group of money-making people were still out there, and Wang Duoyu didn't receive any phone calls or telegrams.

Then they should still be fighting.

On the fourth day of the Lunar New Year, Wang Duoyu had just seen off professors including Wu Congqin when the phone at home rang.

"Uncle Nine, we've sold out of calendars, but many people still ask when we'll sell them again."

The caller was Wang Jianchao, who reported on the battle results.

A total of 180,000 calendars were produced before the New Year and during the Spring Festival, and all of them were sold.

There are probably more than 40,000 unsold books piled up in the factory outside Harbin Institute of Technology.

Now it depends on how Wang Duoyu plans.

"Don't sell them anymore. Wholesale the remaining 40,000 or so copies in the factory and have others distribute them. Go home and then come to see me at school on the tenth day of the first lunar month."

"Okay, Uncle Jiu, I understand."

Wang Jianchao felt very regretful when he heard this.

Because they sold 180,000 calendars during the Spring Festival, 110,000 of which were calendar books and 70,000 were calendar notebooks, so the sales revenue was 430,000 yuan.

The cost of materials and labor is 50 cents per piece, which is 90,000 yuan. The sales staff's commission must also be deducted. Each person who sells one piece gets a commission of 30 cents, which is 54,000 yuan.

Then the gross profit is RMB 286,000.

It was a bit hard, but I made so much money just by selling 180,000 copies, which is much more profitable than selling electronic watches before.

Of course, Wang Jianchao also knew that such huge profits were only short-lived, because sales performance after the Spring Festival had declined significantly.

After the Lantern Festival, I’m afraid no one will be interested in it anymore.

The reason why so many products were sold during the Spring Festival is probably because of those Hong Kong and Taiwan stars.

But no matter what, we made a lot of money this time.

On the sixth day of the Lunar New Year, many more people appeared on the campus of Harbin Institute of Technology, and many students and teachers also returned one after another.

Li Kangmin, Yao Wenrong, Xue Yuheng and others found Wang Duoyu. Regarding the lithography machine project, they wanted to know what the so-called immersion lithography machine was like.

"Didn't I tell you to come back after you've debugged the production line? Why are you in such a hurry?"

"Professor Wang, we really can't sleep, and debugging the production line isn't difficult. Plus, we're on vacation now, so..."

Seeing that they all said this, Wang Duoyu had no choice but to agree and was forced to go to work early.

In the office, Wang Duoyu briefly explained to them the technology of immersion lithography machines.

"It's actually a lithography machine that uses a combination of refraction and reflection for light path shooting, and the space between the exposure area and the lithography machine lens is filled with water."

The advantage of the immersion lithography machine lies in the increase in the numerical aperture of the system, which improves the imaging resolution capability of the step-and-scan lithography machine and can meet the process requirements of imaging resolution below 45 nanometers.

The disadvantages are also very obvious, that is, the introduction of immersion liquid greatly increases the engineering difficulty of the equipment itself.

"Key technologies include immersion liquid supply and recovery technology, immersion liquid field maintenance technology, immersion lithography contamination and defect control technology, development and maintenance of ultra-large numerical aperture immersion projection lenses, and imaging quality detection technology under immersion conditions."

Wang Duoyu did not explain all the key technologies.

After all, these are all related to immersion technology. To be honest, for Li Kangmin and others, the research and development difficulties are still very great.

Once this improvement is completed, we will be able to surpass Western countries and enable our lithography machines to produce double-digit nano-chips.

Currently, the chips on the market are all three-digit nanometer chips. For example, the current step-and-scan lithography machine is only 365 nanometers and has not yet reached the 190 nanometer level.

Therefore, Li Kangmin and his team still have a lot of room for technical optimization.

"Listening to your words is worth ten years of reading!"

Yao Wenrong was amazed:
"Professor Wang, you are so amazing! I can't even imagine it. If you had been able to fully participate in the development of lithography machines, we would have already entered the era of double-digit nanometer chips."

Li Kangmin and Xue Yuheng nodded repeatedly in agreement.

Wang Duoyu has long been accustomed to such flattery.

"I'm just the technical director. If you really let me participate in the research and development, I'm afraid I'll be completely clueless."

This is not modesty, it is the truth.

After all, Wang Duoyu's strengths lie in calculations, innovative design, etc., but he is not so proficient in actual experimental testing.

For example, the lens of a photolithography machine must have a high refractive index in order to achieve high resolution. This means that the lens material must be very pure and uniform. Any tiny unevenness or defect may cause image distortion.

During the photolithography process, the CaF2 light source mentioned by Wang Duoyu just now has an extremely short wavelength and extremely high energy. The lens is heated by the high-energy light, so the lens material must have good thermal stability to prevent focus drift caused by temperature changes.

Therefore, during the research and development process, the technical requirements for such materials are naturally very high.

Wang Duoyu may not have such a meticulous mentality, and even the slightest failure may drive him crazy.

This kind of scientific research does not bring him any sense of accomplishment, because the difficulty level is very high and he feels that he cannot do it.

It's like asking Li Kangmin and others to find derivatives and solve those difficult mathematical problems; they absolutely cannot do it.

"Professor Wang, if we really want to start this project, according to your suggestion, I'm afraid the investment this time will be even higher."

Li Kangmin pondered and said, his eyes revealing worry:

"I'm afraid the school leadership won't be very willing. This requires a lot of materials and high-end equipment, especially the CaF2 light source you mentioned."

As we all know, the light source is one of the core components of the photolithography machine and must have good optical properties, stability and durability. Calcium fluoride is an important material for the light source of the photolithography machine.

As a common optical material, calcium fluoride can be used to manufacture optical components, windows, etc. Its chemical formula is CaF2, and it is a colorless and transparent crystal.

Due to its good optical and physical properties, calcium fluoride has a high transmittance, which can reach more than 90%, and has a high transmittance in the ultraviolet to infrared band.

However, in the process of preparing the light source of the lithography machine, the preparation of calcium fluoride requires high precision, uniform crystal structure without defects, and the surface of calcium fluoride must be flat, smooth, free of cracks, scratches and other surface defects.

In addition, during the use of the lithography machine light source, environmental factors such as temperature and humidity of calcium fluoride need to be controlled to ensure its stability and life.

So, to sum up, just preparing the CaF2 light source for the lithography machine requires a lot of equipment, funds, etc., which represents a huge capital investment.

This is especially true during the research and development stage, not to mention that Wang Duoyu required it to be completed within half a year, so the research and development requirements for this lithography machine are very high and the investment is huge.

Wang Duoyu immediately said:

"Don't worry about this. I will definitely handle the project investment and won't let you worry about funding and equipment."

"I discussed this matter with Secretary Liu and Principal Lu before the holiday. They are very supportive of my decision. In short, you don't need to worry about the funding; I'll take care of it."

"The only thing you need to worry about is the technical research and development. And you have to develop it within six months. We are already too far behind and can't continue to procrastinate."

Hearing Wang Duoyu say this, Li Kangmin and the other three suddenly felt a mountain of pressure coming towards them.

Yao Wenrong couldn't help but confirm again:
"Professor Wang, isn't half a year too short? We might not be able to do it."

How can it be so easy to solve so many problems within half a year, such as imaging quality detection technology under immersion conditions?

Wang Duoyu suddenly became serious and said earnestly:
"That's for sure. Half a year is not enough. We can't delay any longer because after half a year, you will need to further develop other lithography machines with more complex technologies. I hope you can keep forging ahead and keep Harbin Institute of Technology at the forefront of lithography machines."

Li Kangmin and the other two hesitated: Is this possible?
(End of this chapter)