The Red Era, the Opening University Speech

Chapter 99: Is this what you came up with in the past three days?
After memorizing books in the library for three consecutive days, Li Mu felt a little more confident.

After school that afternoon, he went to the Semiconductor Research Institute.

This is the first time he has come since he left last time. I guess Jiang Wei must be very anxious.

After taking out his pass and greeting the security guard, Li Mu walked into the institute and came to the experimental building where the group laboratory was located.

The photoresist task force is a relatively independent research team, and its laboratory is located on the third floor of an experimental building.

There is a sign on the door: 312.

Li Mu saw that the door was ajar. Instead of knocking to disturb them, he quietly pushed the door open.

Jiang Weixin and two other people who were busy in the laboratory immediately came into his sight.

However, it seems that the theory has not been established yet. They are all crawling on the table, frowning, writing formulas and making calculations.

Jiang Weixin raised his head inadvertently and asked in surprise, "Why are you here?"

Li Mu still has to go to school, and the Semiconductor Research Institute is far from Beijing Institute of Technology, so they originally agreed to just come over on weekends.

At other times, Li Mu can come when he wants to, and not come if he doesn’t want to.

"I want to take a look at the previous experimental data on photoresist at the Semiconductor Research Institute." Li Mu said with a smile.

Although those data were of no use to him, they were an indispensable cover-up.

"I copied it down before, take mine and have a look." Jiang Weixin was stunned for a moment, then took out two notebooks from the table next to him and handed them to Li Mu.

He didn't act pretentiously. After taking it, he sat aside and started reading.

The pages of the book turned rustlingly. After about half an hour, Li Mu finished reading the two thick notebooks and returned them to Jiang Weixin.

"Have you finished reading it?" Jiang Weixin couldn't help but look surprised. "If you haven't finished reading it, just take it and read it. I don't need it for the time being."

Li Mu smiled and said, "No, I've already read it. I just wanted to find some ideas. There's no need to read it so carefully. Just remember the general idea."

"Amazing! You have a photographic memory?" Jiang Weixin looked at Li Mu and said in amazement.

Two notebooks, both filled with notes, can be read through in half an hour, which shows that Li Mu has an extremely strong memory.

Even if it's not a photographic memory, it's almost there.

"It's just that I have a better memory. It's not that I have a photographic memory." Li Mu deliberately pretended to be humble, which made Jiang Weixin more confident.

But this is the result Li Mu wanted.

He wants to slowly build up an image of a super genius who can learn anything quickly in front of everyone.

In the past, he just wanted to live in peace and contentment, and the title of genius was a burden. But now he has to contribute to the rise of the country, and having the title of a super genius will make it much easier for him.

After some jokes, Li Mu asked again, "Team Leader Jiang, have you made any progress in your recent research?"

Jiang Weixinyan immediately looked embarrassed and said, "It has only been three days since the start. Lei Jianguo, Wei Huaqiang and I are still thinking about how to make a higher performance photoresist."

"M Emperor's Xiantong Company has developed KPR negative photoresist, so our temporary thinking is also moving towards this."

“But there is still a long way to go before this can be achieved.”

Li Mu nodded slightly when he heard this. He didn't think there was anything wrong with Jiang Wei's new progress.

Even a genius among geniuses cannot come up with a solution to the photoresist problem in just three days.

——Unless you have a cheat like him.

After a moment's silence, Li Mu said, "I have read a lot of information these days and have a rough inference."

He pretended to be hesitant, but in fact he was leading Jiang Weixin to continue the next words.

However, Jiang Weixin didn't catch it. Lei Jianguo and Wei Huaqiang, who had been standing by, pricked up their ears and ran over to say, "Li Mu, you can tell me."

"We have proposed many ideas in the past few days, but they were all rejected by the team leader."

Jiang Weixin looked at Li Mu, also full of curiosity.

Seeing is believing; whether it is real gold or not still needs to be tested by fire.

He was also very curious about what kind of abilities Li Mu had to be recognized by so many experts and professors.

Li Mu smiled and said slowly:
"In 1925, a company in the United States discovered that polyvinyl alcohol and cinnamate had a strong cross-linking reaction under ultraviolet light, and used this for grating etching of optical glass, becoming a pioneer of photoresist."

"In 1954, the company that was still Emperor M developed the first polyvinyl cinnamate photocurable photoresist, the brand name was KPR."

"Then we can start with two organic compounds: polyvinyl alcohol and cinnamate."

At this point, Li Mu paused, looked around, and found a small blackboard in the laboratory. He grabbed it and wrote down the chemical formulas of two polyvinyl alcohols and cinnamic esters on it:

“[C2H4O]n、C9H8O2。”

Although Li Mu didn't quite understand it now, it didn't affect his reading from the script.

He continued: "The synthesis of these two organic compounds involves esterification reaction and polymerization reaction. Through the esterification reaction, a photosensitive resin with a cinnamic acid structure on the side chain can be obtained..."

As Li Mu was talking, Lei Jianguo and Wei Huaqiang suddenly hurriedly took out their notes and quickly wrote down what he said on paper.

As they watched Li Mu talking, their shock grew stronger.

Although I have heard from many experts and professors that at least 70% of the achievements of Beijing Institute of Technology are due to Li Mu's contribution.

But even with some mental preparation, it is still inevitable to be shocked.

How long has it been? I have already gained such a deep understanding of photoresist!

……

Li Mu finished reading the theory and carefully observed the reactions of the three people.

If there is anything wrong, he will quickly remedy it.

Fortunately, most of the three people had expressions of surprise on their faces, except for Jiang Weixin, who seemed to have a little doubt in his eyes.

After hesitating for a long time, Jiang Weixin couldn't help but ask, "Li Mu, is this what you came up with in the past three days?"

Lei Jianguo and Wei Huaqiang couldn't help but look over when they heard this.

If it really only took three days, then this talent cannot be described as genius.

"Of course not." Li Mu lowered his head and smiled, then said modestly: "I laid a certain foundation when I was researching photoresist before."

"And at that time I felt that our country would definitely produce its own photoresist, so I never gave up learning and researching."

“It is precisely because of the accumulation in the past that we have the harvest today.”

"I see. Thanks to you for being aware of this, we have saved a lot of effort!" Jiang Weixin couldn't help but admire.

With Li Mu's review of KPR photoresist and principle analysis, their experimental cycle will undoubtedly be greatly shortened.

"It's just tidying up. There are still many experiments to come. Those are not my forte, so I can only rely on you." Li Mu shook his head.

He is really at a loss when it comes to experiments.

Although he had learned a little when working on 300 integrated circuits, that level was nothing compared to Jiang Weixin.

"Everyone has their own division of labor, and this is why Director Wang sent me to team up with you." Jiang Weixin said with a smile, and then his face straightened:
"Okay, let's stop talking nonsense. Jianguo, Huaqiang, you guys sort out what Li Mu just said. From now on, we will study in this direction."

"Okay." Lei Jianguo and Wei Huaqiang immediately accepted the order.

After making the arrangements, Jiang Weixin looked at Li Mu and asked, "Would you like to stay and watch our experiment?"

"This is what I should do." Li Mu agreed readily.

Afterwards, he stayed up in the laboratory with Jiang Weixin and the other two until late at night.

He discovered that Jiang Weixin was indeed unique in his experiments.

The talent of being able to draw effective experience from failure and quickly make the next plan is simply a natural for experimentation. Li Muguang can learn a lot just by watching.

In the end, he had to leave because he had to go to school the next day.

……

In the next one or two days, Li Mu went to the Semiconductor Research Institute every afternoon after school.

He didn't do anything, just followed Jiang Weixin to learn how to do experiments.

Sometimes when he sees several people stumped by a problem, Li Mu will choose whether to reveal some methods or ideas based on the difficulty of the problem.

……

In the laboratory, Li Mu patiently answered Lei Jianguo's question: "Polymer monomers, photosensitizers and solvents are what we have temporarily introduced, and they form the basis of KPR-type compounds."

"So what is the principle of exposure?" Lei Jianguo asked again.

Li Mu continued: "It's not complicated actually. Triarylsulfonium salt will decompose under the action of ultraviolet light to produce fluoroantimonic acid and triarylsulfonium antimony hexafluoro..."

"Finally, after the structure is activated, it polymerizes with the epoxy groups in other monomer molecules to connect the molecular chains, turning the glue insoluble and curing alternately."

These are the relatively basic knowledge in what he learned.

But after he finished speaking, he suddenly realized something was wrong.

Lei Jianguo opened his mouth wide, as if he had heard something extraordinary.

Even Jiang Weixin, who was mixing the solvent at the side, slowed down his movements unconsciously. The three people's eyes revealed a deep shock, and a kind of sudden enlightenment.

"So that's how it is. Why didn't we think of this before?" Jiang Weixin suddenly slapped his thigh in excitement. He hurriedly put down the solvent in his hand and wrote down what Li Mu had just said.

Seeing this scene, Li Mu reacted instantly and realized that he had accidentally said too much.

Those things that he thinks are basic may be the most cutting-edge knowledge in this era.

"I didn't expect that in less than a week, you have almost figured out the principle of KPR photoresist!" After Jiang Weixin finished taking notes, he looked at Li Mu and couldn't help but admire him.

He actually had an illusion that research had become an easy thing. He didn't need to think hard or stay up all night, as long as he followed Li Mu, the experiment would be successful.

No wonder those experts and professors from Beijing Institute of Technology come to him every day to ask about the progress of their experiments!
Li Mu calmed himself down and said with a smile, "I'm just doing my part."

He observed Jiang Weixin's expression and found that he was more shocked and had a hint of admiration on his face, without any suspicion.

This shows that his previous genius personality has worked.

At least unless the situation is too outrageous, Jiang Weixin will not easily doubt himself.

Li Mu continued, "The next part of the experiment is not my forte, so I will need you, Team Leader Jiang, and my two brothers to help me."

Jiang Weixin said, and immediately put away his shocked expression, and said seriously: "Don't worry, leave it to us."

After saying that, he took Lei Jianguo and Wei Huaqiang to quickly start the experiment.

……

When it was almost noon, Li Mu went to have a meal, and then went to check on the progress of the experiments of Jiang Weixin and others.

In one morning, we only conducted a few experiments at most, so there was naturally no success.

Looking at the progress, he could only sigh.

"I still have to take action." Li Mu said to himself.

Although I can't come up with the formula directly, it is not a problem to help the three people narrow down the scope of the experiments that need to be conducted.

Li Mu did what he said. He walked forward and joined the three people who were conducting the experiment.

……

"For the seventh time, add drops of cinnamic acid and thionyl chloride."

……

"For the eleventh time, take the glue and mix it."

……

"In the nineteenth time, chloroethanol molecules undergo dehydration to produce dichlorodiethyl ether."

……

Jiang Weixin and the other two spent an afternoon in the laboratory and made rapid progress.

"For the last time, let's have dinner after you're done. You can't do research on an empty stomach." Jiang Weixin glanced at Li Mu. He didn't expect that Li Mu could stick with them until now.

Repeated failures can be quite a blow to the self-confidence of young people who have not yet left school.

Especially for a genius like Li Mu who has achieved so much at a young age, he can actually calm down and follow them to do experiments in a down-to-earth manner, which is really admirable.

At this moment: Li Mu handed a data sheet in his hand to Jiang Weixin and said:
"Team Leader Jiang, I have sorted out the experimental data we have conducted so far and conducted a theoretical simulation. Do you think we can use the measurement range in this experiment?"

"Oh, let me see." Jiang Weixin immediately became interested when he heard it.

However, after taking the data sheet and scanning it, he frowned: "Isn't it a bit too much to adjust the value of the polymerization monomer to this range?"

He believed it, but due to his own expertise, it was difficult for him to accept the data given by Li Mu all at once.

"I just used theory to deduce it. If you think it doesn't work, then don't use it." Li Mu smiled and was about to reach out to take back the data sheet.

Since Jiang Weixin had some doubts, he would not force them to follow this data.

Anyway, if they can't figure it out later, they will have to use it.

"No, no, that's not what I meant." Jiang Weixin waved his hands quickly, "We have to experiment anyway. Since you think it's feasible, let's give it a try."

"I actually trust your judgment. Let's try it one last time before we go eat."

After saying that, Jiang Weixin called Lei Jianguo and Wei Huaqiang to start the experiment according to the range data given by Li Mu.

……

Not surprisingly, the experiment failed.

But when looking at the finished product of photoresist, Jiang Weixin's face was full of joy.

He danced with joy and said:

"Li Mu, your judgment is so accurate. The interval data of this polymer missile is very close to the success value!"

"As long as we continue the experiment, it won't be long before we can develop KPR photoresist!"

Li Mu pretended to be surprised and said with a smile: "It seems that I am lucky. I can guess this correctly."

"It's more than just good luck." Jiang Weixin couldn't hide his excitement, "No, we have to continue the experiment and try to make KPR photoresist as soon as possible!"

He even forgot about the meal he had agreed to have, and called Lei Jianguo and Wei Huaqiang to continue his experiment.

"Don't be anxious. Eating is more important." Li Mu advised with a helpless smile.

Jiang Weixin said without even looking up: "You go and eat. Don't worry, it's okay for us to eat later!"

Seeing this, Li Mu did not continue to persuade him and quietly left the laboratory.

The three of them could survive without a meal, but he would not only feel extremely hungry but also feel weak all over.

So Li Mu would not miss any of the three meals a day.

……

(End of this chapter)