The Red Era, the Opening University Speech

Chapter 93: This, is this etching process?

Li Mu has always wanted a watch, otherwise he could only go to the library and classroom to check the time.

However, Li Mu felt it was a bit inappropriate to go with the two of them.

The relationship between men and women in this era is very conservative!

"We can discuss the experiment together on the way. I just happen to have a few questions for you." Wang Ya said from the side.

From the beginning till now, her brows have been tightly furrowed, as if she is still immersed in some difficult problem.

"You can't just ask in vain, how about treating him to a meal of mutton?" Xu Qing looked at Wang Ya, whose face was a little tense, and wanted to make a joke to help her relax.

Li Mu took over the conversation and jokingly said, "I think you want to eat mutton hotpot, right?"

"Yes, that's what I want to eat. Let's have a hotpot in this cold weather. Only those who have eaten it know how delicious it is." Xu Qing said.

These words made Li Mu drool.

He looked at Wang Ya and said, "How about going?"

"Okay." When asked by Li Mu, Wang Ya came back to her senses from her thoughts and nodded belatedly.

……

The three of them rode their bicycles to the department store.

After parking the bicycle in the bicycle shed and locking it, Li Mu followed Wang Ya and Xu Qing into the shed.

With just a quick glance, his original expectations were reduced by half.

It is far inferior to the large supermarkets of later generations, which make people want to buy.

Xu Qing greeted him, "I'm going to buy a scarf. Do you want to follow us or go shopping on your own first?"

"I'll just walk around." Li Mu waved his hand. He didn't want to go shopping with a woman.

"Okay." Xu Qing responded, and then took Wang Ya straight to the second floor where clothes, shoes and hats were sold.

Li Mu was strolling around the department store, looking for a place that sold watches.

After a while, Li Mu saw the target.

He had been prepared for the high price, but he still underestimated it.

120 yuan!
Li Mu touched the dozen dollars left in his pocket and could only give up with regret.

Although he couldn't buy a watch, Li Mu did not go empty-handed and bought some fruit cookies and Cuban candies.

Li Mu tried these two snacks and found that the taste was just average, just a little sweet.

But if you keep eating French fries, no matter how delicious they are, you will get tired of them. It’s also a good idea to change up the taste.

After shopping, Li Mu went to find Wang Ya and Xu Qing.

The two were still on the second floor.

After Xu Qing bought the scarf, he went into the clothes shop and was dazzled by the sight.

Li Mu shook his head in amusement and looked at Wang Ya again, only to find that she was standing in front of a pair of white dancing shoes, lost in thought.

He recalled almost instantly everything he had heard that night.

He took out a candy from the wrapped candy, walked over and handed it to Wang Ya: "Do you want to eat it?"

Wang Ya raised her head as if she had just woken up from a dream, and there seemed to be some glimmer in her panicked eyes.

"Okay, you're only giving it to her and not to me, right? You bought it specially for her?" At this moment, Xu Qing suddenly ran over and teased with a smile.

"I bought it for my two younger sisters. If you want to eat it, you can all have a share." Li Mu said with a smile.

Xu Qing snorted: "I won't eat it. If I eat it, won't I become your sister?"

"That's not what I meant. I really have two younger sisters at home." Li Mu was at a loss whether to laugh or cry.

Looking at the two people talking and laughing, Wang Ya curled up the corners of her mouth into a faint smile.

After playing around for a while, Xu Qing suddenly said:

"I haven't thanked you for the note-taking thing last time, so I'll treat you this time!"

"If I hadn't been inspired by your notes, I wouldn't have had the opportunity to shine in front of so many expert professors."

Li Mu's eyebrows jumped. He didn't expect Xu Qing to still remember this. "It's just a record. The main credit goes to you, Xu Qing."

Xu Qing smiled, his eyes searching, and said, "Is that so? I was worried that you would think I stole your credit!"

"How could that be!" Li Mu waved his hands. If he wanted credit, there was no need to go through so much trouble.

"Okay, I just want to ask you whether you want to go or not?" Xu Qing said.

Li Mu smiled and said, "Go, why not? I don't have to pay for it."

"That's settled then, let's go!" Xu Qing waved his hand, pulled Wang Ya up, and walked in front.

Afterwards, the three of them came to a mutton restaurant, ordered a plate of mutton, waited for the copper pot to boil, picked up a piece of mutton, and dipped it in the pot.

Dip it in sesame paste and eat it deliciously.

The taste was so good that Li Mu almost swallowed his tongue.

If it wasn't because Xu Qing was treating, Li Mu would have been too embarrassed to eat as much as he could. He could have finished four plates of mutton by himself.

……

In the afternoon, after parting with Wang Ya and Xu Qing, Li Mu returned to the slum with candies and biscuits.

But this time, Li Mu had no plans to stay overnight, so he rode his bike back to school before dark.

Originally planning to go back to the dormitory, but somehow Li Mu rode his bicycle to the downstairs of the experimental building.

"Sure enough, still busy!" Li Mu looked at the brightly lit laboratory building, feeling emotional and ashamed.

Professors and experts including Huang Xinhua, Lu Qian, and Gu Ming worked on research day and night.

But I still think about resting all day long!

Li Mu parked his bicycle, thought for a moment, and walked towards the laboratory building.

"Just give them a little more direction, at least so they don't have to work so hard!"

"Knock knock~" Li Mu knocked on the laboratory door twice gently.

Perhaps because they were too focused, the people in the room did not notice his arrival.

He walked into the laboratory and saw Huang Xinhua sitting at a laboratory table with concentration, operating the photolithography machine carefully, conducting an experiment.

Professors Gu Ming and Lu Qian were old and probably couldn't hold on any longer, so they took a nap leaning against a small table.

On the table was the data they had worked hard to produce after many days of hard work, and it was densely covered with various circuit drawings.

Even when they fell asleep, their hands were still holding pens, unconsciously writing something, as if they were still thinking about research even in their dreams.

Li Mu walked forward and took a look at the manuscript paper in front of the two people, which was about the problems with the etching process.

Although we have Li Mu's theory, it still requires a lot of hard work to achieve dry etching.

Looking at the exhausted expressions and the furrowed brows of the two old professors, Li Mu sighed in his heart, hesitated for a long time, and picked up the pen.

"It's been so many days, it shouldn't be too much for me to take out some more things." Li Mu thought to himself.

……

The next day, laboratory.

"A-choo~" Gu Ming couldn't help sneezing and subconsciously tightened his clothes. He reacted and asked curiously, "Hey, Lao Lu, is this what you covered me with?"

"What are you covering me for? Didn't you cover me?" Lu Qian also tightened his clothes.

When the two of them were a pair, they realized that they were both covered with the same piece of clothing, and it seemed that they came from the same person.

"That's strange, Professor Huang, did anyone enter the laboratory yesterday?" Lu Qian asked Huang Xinhua who had just got up.

Huang Xinhua rubbed his messy hair, his eyes full of bloodshot, and said, "No, I didn't go to bed until after four o'clock yesterday, and I didn't see anyone come in."

"But maybe I was too focused and didn't see it."

"Maybe your student Xu Qing came here to build it."

"No, no." Gu Ming shook his head repeatedly. If Xu Qing came, he would definitely force them to rest. It would not be as simple as just covering them with a piece of clothing.

"Who could that be?" Huang Xinhua also reacted at this time.

Could it be an enemy spy?
It's impossible. Would the enemy spies be so kind as to cover them with clothes? Moreover, if the enemy spies could sneak in, would all the security personnel in the school be vegetarians?

Just as the two were puzzled, Lu Qian, who had stood up to collect the documents, suddenly exclaimed: "Lao Gu, Lao Gu, is this what you wrote last night?"

He pointed at a stack of manuscripts on the table, his eyes full of disbelief.

"It's either written by me or by you. Are you so surprised?" Gu Ming looked at the manuscript paper on the table in some confusion.

It would be fine if he didn't see it, but once he saw it he was also surprised: "This, is this an etching process?"

The first piece of paper read:

"Using partially or completely ionized neutral gas, usually including electrons, positive and negative ions, neutral particles (including excited and ground state neutral particles), free radicals and photons, etc...."

"When these gases exist in the form of plasma, they have two characteristics. One is that their chemical activity is more active than under normal conditions..."

"Secondly, the electric field can be used to guide and accelerate the plasma, giving it a certain amount of energy. When it bombards the surface of the etched object, it will knock out the atoms of the etched material, thereby achieving the purpose of etching by physical energy transfer."

There are also detailed illustrations below.

The three of them spread out the manuscript paper one by one and found that it not only recorded the process of etching technology, but even a small part of ion injection was written on it.

Although it cannot be said that the etching process and ion implantation process can be realized by following the instructions exactly, it can almost eliminate most of the wrong options they need to verify at once.

Their eyes couldn't help but become dull.

Not long after, the experts and professors who had gone back to rest returned to the laboratory. Seeing the expressions of the three people, they looked at the manuscript paper curiously, and their eyes also became dull.

"Who, who wrote this?" After a long while, Lu Qian finally uttered a word.

They worked hard for a long time but couldn't figure it out, but after one night, someone actually figured it out!

Huang Xinhua looked at the notes on the manuscript paper, his eyes moved slightly, and said: "Don't you think that this handwriting, and the format that I have to add at the beginning of each sentence, looks like a person?"

With that said, the answer was clear, and all the experts and professors present couldn't help but blurt out: "Li Mu!"

Huang Xinhua nodded slightly and said, "I'm afraid only he has this talent."

Upon hearing this, professors including Gu Ming and Lu Qian nodded repeatedly.

"Now that we have this plan, I feel that we are very close to mastering the four key processes of integrated circuits." Huang Xinhua took a deep breath and looked around at all the professors in the laboratory.

He continued: "I think we need to contact the Semiconductor Research Institute to conduct joint experiments."

……

Semiconductor Research Institute.

Wang Shoujue is in the laboratory, checking the recent research progress.

With the help of Li Mu's plan, almost all of their research was carried out within this big framework.

At first he was a little worried that if he took the wrong road, a lot of manpower, material resources and financial resources might be wasted.

But the more he studied, the more he realized that the path ahead must be the right one.

It's like a straight and broad road, although they will stumble and encounter many obstacles along the way.

But as long as you keep moving forward, you will definitely reach the end.

Researchers under Wang Shoujue are reporting their work:
"Director Wang, we have prepared a usable solution. All we need to do next is experiment with the ratio, temperature, and reaction time. There is a high probability that the etching effect will be achieved."

"Haha, we will definitely be able to surpass Beijing Institute of Technology this time."

"Well done, keep up the good work." Upon hearing this, Wang Shoujue nodded and finally felt a little relieved.

However, when he thought about the fact that their semiconductor research institute was actually being compared with a university research team, he couldn't help but smile bitterly.

In the research work of the four processes, although their Semiconductor Research Institute was obviously stronger, they were repeatedly surpassed by the Beijing Institute of Technology.

Whether it is photolithography technology or thin film deposition technology, we are one step behind others.

The entire institute is now holding its breath, trying to regain face in the two technologies of etching and ion implantation.

“Don’t let others look down on you!” Wang Shoujue smiled, sorted out the research progress, and prepared to give it to the director, asking him to synchronize it with the Beijing Institute of Technology.

However, before Wang Shoujue could get over, the director of the Semiconductor Research Institute rushed into his office.

"Old Wang, there's a call from Beijing Institute of Technology." The director's first words startled Wang Shoujue, and he quickly asked, "What did they say?"

The director looked serious and said, "They have basically completed the four key technologies of integrated circuits, and now they have invited us to conduct joint experiments!"

Wang Shoujue was stunned!

No, he just thought he could finally defeat the opponent, but then he was told that he was crushed?

Then there was another start, and joy welled up in my heart.

He even forgot about the previous comparison. After informing the director, he hurried to Beijing Institute of Technology.

As for Li Mu, after leaving the laboratory at night, he went back to the dormitory and took a nap.

After daybreak, his mind became much clearer. Thinking about the things he took out on impulse last night, which amounted to more than 100 million yuan, he felt a little regretful.

Worried that Huang Xinhua and others would come looking for him, he finished his exercise as usual, had breakfast, and then rode his bike home.

As soon as I arrived at the gate of the slum, I saw Li Lan and Li Yu standing at the door, looking at the wooden airplane in the hands of Grandpa Zhong's grandson with envy on their faces.

Children these days not only have little to eat, but also have few toys to play with.

Uncle Zhong was squatting at the door, working on a model with a file in his hand. When he saw Li Mu coming back, he smiled and greeted him: "Xiao Li, you haven't been back for a long time, right?"

"I've been busy with school stuff lately." Li Mu replied, hugged his two sisters who rushed to him after seeing him, and then asked curiously: "Uncle Zhong, I didn't expect you have this skill."

"Haha, these are all passed down from the past. It is also thanks to this skill that I was able to work in the factory." Uncle Zhong smiled and finished carving the model with a file in a few strokes.

He handed the wooden plane to Li Lan and Li Yu: "Here, take it and play with it."

The two little girls didn't dare to take it and looked at Li Mu.

"Take it." Li Mu smiled and touched their little heads.

This is nothing to eat, so it can't be considered a favor that would cause any embarrassment.

Li Lan and Li Yu then happily took the wooden plane and went to play with it.

Uncle Zhong was about to stand up with a smile on his face. Li Mu looked at the file in his hand and suddenly understood: "Uncle Zhong, I have something. I wonder if you can help me make it."

"Thing? Made of wood?" Uncle Zhong was stunned.

Li Mu smiled and nodded: "Yes, I call it the Rubik's Cube."

(End of this chapter)