The Red Era, the Opening University Speech

Chapter 76: An Outstanding Rising Star (Seeking Follow-up Reading)

Ask: "Sorry Li, my phone just dropped into the water by accident."

"Do you want information on integrated circuit technology? Wait a minute, I'll send it to you right away."

Not long after, Li Mu received the information.

He first quickly browsed the information, then asked questions to delay time: "Dear experts and professors, what do you think are the difficulties in integrated circuit research in our country now?"

"Of course it's a technical problem. We don't have many of the technologies." An expert laughed.

A professor immediately responded: "Not only do we not have any technology, we don't even know what technology to use. We can only slowly explore it."

The people around them nodded frequently at their words.

Li Mu read some information and had a better idea in his heart. He quickly organized his words and said, "An integrated circuit is a circuit that uses a certain process to make transistors, diodes, resistors, capacitors and other components on a small silicon wafer.
Then they are interconnected using appropriate processes and then packaged in a tube shell...ultimately an integrated circuit is made."

"So can we get the process information needed for integrated circuits from it?"

"Of course, and there is no need for inference." Someone immediately answered, "According to the information provided by foreign journals and magazines, it will go through oxidation, photolithography, diffusion, epitaxy, and other process flows."

Li Mu nodded, and glanced at a small blackboard next to him, so he walked over slowly, delaying time so that he could browse more content.

When he stood in front of the small blackboard, he first erased what was written on it, then picked up the chalk and wrote a paragraph: photolithography process, thin film deposition process, etching process, ion implantation process.

"Huh?" Someone in the audience frowned.

They knew about lithography and etching, but they were relatively unfamiliar with thin film deposition and ion implantation.

Li Mu turned around after hearing this and said, "This is my inference about the difficulties in integrated circuit technology based on foreign information."

"Oh, what is the basis for your inference? Can you give an example?" An expert immediately asked sharply.

The baseless results could not convince them.

Li Mu hesitated for a moment, then said, "These four processes are my reverse deduction of the results of integrated circuits. For example, the thin film deposition process is deduced from the circuit structures of various layers on the surface of the wafer."

After hearing Li Mu's answer, the experts and professors below thought about it and found that it seemed to make some sense, so they asked again: "What about etching? Why?"

"In the process of forming integrated circuits, photoresist is needed to replicate the mask pattern, and etching is how to correctly select the process to remove unnecessary materials." Li Mu smiled.

After he finished speaking, he seemed to know that these experts and professors would continue to ask questions, and he spoke first: "The main function of ion implantation is to form resistors, which act as wires and heaters on the chip."

"I came up with this technology after further developing traditional diffusion technology. It has not been experimentally tested and may not be accurate."

"I am boldly proposing this here, just to take this opportunity to provide an idea for the experts and professors."

The experts and professors present couldn't help but think: "How bold!"

But then, they suddenly realized: "Something is wrong, why does it seem to make sense!"

Moreover, Li Mu’s theory is almost equivalent to building a fairly clear integrated circuit process flow framework for them!

You have to know that foreign countries are very cautious about cutting-edge technologies like integrated circuits, for fear that they will be learned by China.

If they wanted to conduct research, they could only find some information about scales in foreign journals and use it as a basis for conducting experiments.

The whole process is a process of trial and error, crossing the river by feeling the stones.

"Tell us more about this ion implantation process. What do you think?" Several professors looked at Li Mu with burning eyes.

Li Mu had almost finished reading the information. Hearing this, he quickly identified the content he was going to talk about. After organizing it, he said, "When an ion beam knocks atoms or molecules out of a solid material, it is called sputtering. When it bounces off the surface of a solid material, it is called scattering. When it stays in a solid material, it is called ion implantation."

"Its main function is to dope semiconductor materials to change their conductivity, optical properties and lattice structure."

As he spoke, he drew pictures on the small blackboard to make it easier for the people below to understand.

After he finished speaking, the experts and professors present fell into a long silence.

Until someone started clapping, thunderous applause suddenly filled the venue and lasted for a long time.

Now Li Mu has become completely famous in the domestic semiconductor industry.

……

The seminar didn't end until the afternoon.

The four key process theories of integrated circuits became the only focus of the entire event.

As a result, the rest of the seminar focused on the four techniques he proposed.

Almost all experts and professors enthusiastically discussed the feasibility of this theory.

As the proposer, there would inevitably be people coming to Li Mu to ask questions.

An expert from Liao Province looked at Li Mu with admiration and said, "You are a promising young man. When I was your age, I didn't even understand the textbook knowledge. I didn't expect that you could draw inferences from one example and design a cutting-edge framework."

"You're too kind." Li Mu blushed slightly.

The expert from Liao Province continued, "We are a little confused about the ion implantation process you just mentioned. Can you explain it again?"

Hearing this, the experts and professors surrounding them immediately pricked up their ears.

Li Mu looked at the curious eyes of the crowd and could only explain helplessly: "In fact, to put it simply, it is to accurately introduce impurities into semiconductor materials to optimize the materials."

……

After a long explanation, Li Mu finally managed to fool the expert from Liao Province in front of him.

But before I could catch my breath, an expert with a Hunan accent came up to me and said, "Haha, hello, hello, you're a great guy!"

"My name is Jiang Chengjian, a professor at Hu University. Young man, when you have time, you can come to Hu Nan and communicate with the teachers and students of our school."

As soon as Hu Nan finished speaking, many other experts came up and introduced themselves, while warmly inviting Li Mu to visit them for exchanges and learning in the future:

Only then did he realize that this must be the semiconductor industry's official recognition of him.

In other words, even if he has not yet established himself in the academic world, he is still an outstanding rising star.

……

After the seminar was over, Li Mu was finally able to get away after getting to know dozens of bigwigs in the circle.

Huang Xinhua said something to him and went to reminisce with some old friends he hadn't seen for many years.

He found Wang Ya and prepared to go to the cafeteria of Wudaokou Institute of Technology for a free dinner.

When I arrived at the cafeteria of China Europe International Business University, it was very noisy.

(End of this chapter)