The Red Era, the Opening University Speech

Chapter 81: Earthen “Photolithography machine”!
Li Mu said modestly: "Without the school's training, I would not have this opportunity, so in the final analysis, it is still because of the school that I have benefited from it."

Huang Xinhua couldn't help laughing out loud at this.

After laughing, he continued, "There is also an ultra-thin diamond wheel cutting machine, which is also being trial-produced. However, this time it is estimated that it will not be as grand as the single crystal furnace."

"Our country's semiconductor industrialization lacks application areas. To move forward, we need more technological breakthroughs."

"And this is what we are going to do next, to break through the difficulty of integrated circuits!"

“The road ahead is long and we still need to work hard!”

Listening to Huang Xinhua's words, Liu Ze and Wang Yang were excited and wanted to develop the integrated circuit immediately.

"Professor Huang, what stage has our current research reached?" Li Mu was also infected and couldn't help but blurt out.

Hearing this, Huang Xinhua smiled bitterly and shook his head: "We have been working on the photolithography process these days, but we got stuck just at the beginning."

"Before this, there was no concept of lithography in China, and our understanding of this aspect was still based on theories in foreign journals and magazines."

"But even with the help of your report, it will be very difficult for us to produce a lithography machine in a short period of time."

Li Mu was stunned when he heard this, how could there be none?
According to the information, the "earth photolithography machine" should have been developed by now!
He quickly looked up the information and found that the time record of Wang Shoujue building the unearthed lithography machine was not detailed.

The "earth lithography machine" is just a product of necessity under simple conditions and cannot be considered a major achievement. The relevant departments may keep archive records, but the probability of specific information being circulated on the Internet is almost zero.

"It was probably made between 61 and 62, but I can't wait for a year or two!" Li Mu frowned secretly.

——No matter what, if it is helpful to the country’s development, he thinks Wang Shoujue will not mind being “grabbed” for the credit in advance.

Li Mu took a deep breath and broke the silence: "Professor Huang, I have a solution."

Before Huang Xinhua could speak, Liu Ze and Wang Yang spoke up, completely confused:

"Brother, stop joking. What can you do about something that even the country can't get?"

"Can't you buy one from abroad?"

"If we could buy it, the country would have bought it long ago. The OM Empire is afraid that we will become too powerful, so they don't want us to know about these high-tech things at all!"

Listening to what the two students said, Huang Xinhua felt that it was unlikely.

But he knew that Li Mu was definitely not the kind of person who liked to talk nonsense. Since he dared to say so, there must be a feasible basis.

So he asked, "Don't worry about them. If you have any ideas, just tell us and we can discuss it together."

No matter whether it is right or wrong, it is a good thing to have ideas.

At least it can prevent future research from going astray.

Liu Ze and Wang Yang looked at Li Mu, somewhat as if they were laughing at a joke.

They acknowledged Li Muniu and said that he could make both the single crystal furnace and the ultra-thin diamond wheel cutting machine.

However, when it comes to photolithography machines, China is almost completely blank.

Li Mu said slowly:
"In fact, the earliest lithography technology appeared in 1822. At that time, lithography was to place oil paper with an imprint on a glass slide and then cover it with asphalt dissolved in vegetable oil."

"After being exposed to the sun, the transparent part of the asphalt will harden, and the opaque part can be washed off with rosin and vegetable oil."

"Then we derived the basic principle of integrated circuit lithography, which is mainly based on optical projection technology to project light source onto the object that needs to be lithographed."

At this point, Li Mu paused, and Liu Ze couldn't help but interrupt: "Even if we know the principle, we can't make a photolithography machine!"

As soon as he finished speaking, Huang Xinhua glared at him and said, "Don't interrupt."

Li Mu smiled and didn't mind, and continued:
"We can't make a photolithography machine, but we can make a 'homemade photolithography machine'."

"The light used by the lithography machine is industrial ultraviolet light with a wavelength of 240-400nm, which is then focused by a special lens system and projected onto the silicon wafer to complete the lithography." "So we might as well simplify the process and use two microscopes and a UV exposure machine to build a simple 'lithography machine'."

"Although the effect cannot be compared with a real lithography machine, it should be able to meet our experimental needs temporarily."

As Li Mu spoke his thoughts, the laboratory fell into a long silence.

Liu Ze and Wang Yang's first reaction was that it was impossible.

"Junior brother, this sounds too unreliable..." Liu Ze spoke in a low voice, but he was interrupted by a sudden laugh before he finished speaking.

Huang Xinhua suddenly figured something out and laughed, "Your idea is good. It may not sound reliable at first, but if you think about it carefully, it may work!"

"Teacher, is this really possible?" Wang Yang, who was always calm, was shocked.

Huang Xinhua said: "Since the principle is understood, the effect must be there. If there is no good lithography machine, there will be no effect!"

"The conditions are so poor right now, so we can only make do with what we have and finish the photolithography step first!"

"Go find a microscope and UV exposure right now, and we'll start experimenting with the effects!"

Now that he had the method, Huang Xinhua didn't want to wait a moment and prepared to start the experiment immediately.

After arranging the tasks, Huang Xinhua looked at Li Mu again and said, "You haven't recovered yet. Take a rest for a while and come back when you are better!"

"Professor Huang, don't worry, I'm fine and can participate in the experiment."

Huang Xinhua shook his head: "Health is the capital of revolution. If you are not in good health, no matter how talented you are, you won't be able to achieve much."

Li Mu: "I'm really fine!"

……

After several attempts, Huang Xinhua finally couldn't persuade him anymore and reluctantly agreed to let Li Mu join now.

After his mentality gradually changed, Li Mu finally gradually integrated into this red era where people disregarded personal gains and losses and devoted themselves to contributing to the collective and the country.

……

Li Mu joined the experiment right away.

However, due to lack of experience in specific operations, he did not get started, but instead instructed Liu Ze and Wang Yang on how to build it using a microscope and ultraviolet exposure.

It took two hours to build a clay photolithography machine.

Huang Xinhua looked at the earth photolithography machine with a smile in his eyes. He turned his head to look at the two students and said, "The next step is to test the actual effect. Liu Ze and Wang Yang, you guys hurry up and get ready."

"If the lithography machine doesn't work, then we will have a tough battle to fight next!"

The entire world is groping forward in the process of photolithography, and can only experiment slowly and use time to make mistakes.

Huang Xinhua looked at Li Mu again and said teasingly, "Li Mu, you have already made a great contribution by making this homemade photolithography machine. I think you should go back and have a rest first, and don't compete with us for the credit."

Professor Huang obviously wanted to persuade Li Mu to take care of his health.

"Professor Huang, what are you talking about? I'm really fine!" Li Mu was helpless, but he also knew that now was not the time to use the photolithography technology directly.

At least he has to wait for the first data from the lithography machine experiment to come out before he can release the lithography process flow, and he can't get it all at once.

Otherwise, there is no experimental basis, and there is a blank in this area in China, so Li Mu cannot explain its origin at all.

"Okay, Professor Huang, but I will look at the experimental data again tomorrow." Li Mu thought about it and decided that he couldn't keep dragging it on like before. Since he had decided to do something for the country, he had to do it seriously.

As for the issue of being exposed - anyway, his genius personality has been deeply rooted in people's hearts now.

Please continue to read, please vote for me monthly, please add me to your collection, and please vote for me recommendation!


(End of this chapter)