The Red Era, the Opening University Speech

Chapter 206: Cheating Foreigners
Huang Xinhua whispered, "Are you still hiding something? You used to come up with the plan directly."

"Indeed there is a little, but not much, and they are some immature ideas, so I am not in a hurry to bring them out." Li Mu said with a smile.

If he participates in the research throughout the process, it doesn't matter whether he comes up with a plan or not. He can always guide everyone's research direction.

"I knew that with your level, it would not be as simple as just an idea." Huang Xinhua pointed at Li Mu with a smile, his eyes full of emotion and amazement.

It had only been a short time since he and Wang Shoujue found Li Mu and raised the difficulties of packaging technology, but Li Mu already had a preliminary plan.

This speed is much faster than before, it is truly terrifying.

……

After a busy whole day, Li Mu didn't leave the laboratory until around 9 o'clock in the evening.

The advancement of surface mount technology and multi-chip packaging technology has been relatively smooth, at least no major difficulties have been encountered for the time being.

Worried about the motorcycle engine, Li Mu hurried downstairs as soon as he walked out of the laboratory.

But after taking two steps, he suddenly stopped, turned his head and looked at the figure who had been waiting outside for who knows how long.

"How long have you been here? Why are you waiting here?" He hurried forward, held Wang Ya's frozen little hand, and rubbed it vigorously twice.

Wang Ya blushed slightly and said, "Not long, just arrived a while ago."

"We can't just stand outside and wait. Let's go in and warm up first." As he spoke, he took Wang Ya back to the laboratory.

When they saw him come back, Huang Xinhua and others were stunned for a moment, and then they noticed Wang Ya hiding behind them. They all smiled knowingly without saying much.

Li Mu first took Wang Ya to the small meeting room next door, where there was a small coal stove, which was much warmer than outside.

He picked up the kettle on the coal stove and poured hot water while asking, "Is there anything you want to talk to me about?"

"Well, my mother told us not to be so busy all day and to go back and try on clothes when we have time." Wang Ya lowered her head and said shyly.

"Try on clothes?" Li Mu frowned slightly, his mind was not thinking for a while, until he saw Wang Ya kept her head down, he suddenly realized:

"Yes, I want to try."

"How about this, I'll pick you up tomorrow morning and we'll go back together?"

Wang Ya raised her head, her eyebrows curved, and said, "Okay, I'll listen to you."

"You listened to everything?" Li Mu turned his eyes slightly and asked teasingly.

Hearing this, Wang Ya nodded slightly and said, "I'll listen to you all."

"Then don't stand outside waiting when you come next time. Be sure to call me. Don't worry, I won't disturb me." Li Mu covered her still cold little hand and said gently.

……

After sending Wang Ya back to HKUST, it was almost 10:.

After returning to the dormitory, Li Mu heard some knocking sounds coming from inside before he even got close.

When I walked in, I saw that it was General Zhao who was assembling engine parts brought from Hongxing Steel Plant, and his body and face were covered with a lot of oil.

Seeing this, Li Mu hurried forward to help.

"No, no." When Army Officer Zhao saw him coming, he quickly waved his hand and said, "It's all motor oil. It's hard to wash it off. I can do it. It's just a little bit more."

"Okay, then I'll leave it to you, Brother Zhao." Li Mu took a look at the V-twin engine and found that it was almost assembled, so he didn't insist.

He watched from the side for a while. It must be said that General Zhao was quite gifted in mechanical engineering, at least he was very talented in hands-on skills.

Most people may not be able to assemble it even with the design drawings, but it took only one afternoon to complete the sub-assembly, which is incredibly efficient.

……

Soon, General Zhao finished assembling the engine.

Just add gasoline to get it started.

Unfortunately, this is a dormitory. Even though the noise of the V-twin engine is greatly reduced compared to a single-cylinder engine, it can still wake up everyone in the building in the quiet of the night.

"We can only wait until tomorrow to conduct the final test." General Zhao said regretfully.

Li Mu first checked it carefully, and then said, "I don't think there is any problem. Brother Zhao, I will talk to Director Zhao of the school tomorrow and ask him to help us prepare a laboratory."

"First, see if the engine can start, and then record its operating status."

"I may be very busy at this time, so I may need your help in the future."

Starting the engine is only the first step. It also depends on whether there will be any problems during operation, how long it can run for a long time, etc.

There are also road tests on motorcycles. Sometimes the engine runs fine, but there are also many cases where problems arise once it hits the road.

Especially when facing harsh environments, it is very important to know whether you will just lie down or not.

"Don't worry, leave everything to me." General Zhao patted his chest and promised.

Although the design was done by Li Mu, most of the hands-on parts were completed by him.

The first time he applied the mechanical engineering knowledge he had learned, he made a motorcycle engine, which gave him an overwhelming sense of accomplishment.

……

The next day.

After getting up, washing and exercising, Li Mu first went to the office of the Department of Geophysics to find Zhao Jiuzhang and talked about applying for a laboratory.

Since he wanted a laboratory, Zhao Jiuzhang naturally would not refuse and agreed immediately.

However, Zhao Jiuzhang was also curious. Wasn't Li Mu busy with work at the research institute? Why did he suddenly apply for a laboratory at school?

He asked, "What are you going to study now? Did Lao Qian give you a new research topic?"

Last time at Master Qian's place, he heard two people talking about the development of the surface-to-air D missile.

But he was not very optimistic about this matter.

Li Mu has only been studying for a short time, but it would be amazing if he could solve a problem so quickly that many people have been studying for a long time but have not been able to solve!

Therefore, he thought that it was Teacher Qian Wu who found the topic too difficult, so he gave Li Mu a new one.

"You misunderstood. It's just a small thing I researched on a whim. It's not worth mentioning." Li Mu shook his head without explaining too much. After that, he left quickly on the grounds that he was busy with research.

He felt that there was no need to publicize something before it was successful.

But this instead aroused Zhao Jiuzhang's curiosity, and he secretly planned to find a chance to go to the laboratory to see what Li Mu was researching.

……

After leaving HKUST, Li Mu went to Beijing Institute of Technology.

Wang Ya had been up for quite a while and was jogging in the campus. White mist was coming out of her head in the winter day. Her fair and tender face was like a peeled egg, slightly flushed, with bright eyes and white teeth, and a radiant look.

Seeing him coming, her extremely beautiful eyes showed happiness and she trotted over.

"Not bad. You exercise every day and your complexion looks much better." Li Mu looked at her, smiled and nodded.

At first, Wang Ya needed supervision, but later she developed a habit and didn't even need to rest. Wang Ya asked, "Why are you here so early? Aren't you going to the Semiconductor Research Institute first?"

"It's okay. I'll go over there in the evening to check on the progress. Let's go." After Li Mu finished speaking, he gently patted the back seat of the bicycle.

"Okay." Wang Ya responded softly, then sat sideways on the back seat of the bicycle.

Her hands struggled for a while, but she finally decided to just gently grab Li Mu's clothes.

Li Mu looked back and said with a smile, "You can't catch it like this."

As he spoke, he took Wang Ya's hands and placed them on his waist.

Without waiting for Wang Ya to refuse, he kicked her out.

The sudden start of the bicycle made Wang Ya let out a slight cry of "Ah~". She quickly hugged Li Mu's waist and twisted it lightly in a reproachful manner.

Feeling the strength coming from his waist, Li Mu's heart rippled slightly, forming circle after circle of ripples.

……

The fitting went quite smoothly.

Whether it is Li Mu or Wang Ya, they are almost like clothes racks. With their faces, they look good in anything they wear.

After some tinkering, Wang Ya's mother, Grandma Li and Wang Juanhong nodded with satisfaction, took the measurements and fabrics, and went to find the old tailor to start making it.

They worked until noon, had a meal, said something to each other, and prepared to leave again.

This naturally caused Wang Ya's mother and Grandma Li to complain for a while.

……

Back to the Semiconductor Research Institute.

Li Mu was just about to go to the laboratory when a "ding~" message alert sound suddenly rang in his mind.

Ask: "Li, I'm so unlucky. My suitcase was robbed, and my phone was also robbed. I stayed in the Big Infant Security Team for two days before they helped me get it back!"

"I'm glad you're okay. Did you get to school safely?" Li Mu glanced at the WIFI and saw the WIFI names of Jianqiao University Library and various laboratories.

Ask replied:

"It's okay. I just arrived at Jianqiao University. I'll take a day off today and start studying tomorrow."

"When I get busy, I'm afraid I won't have time to chat with you."

"If you have anything, you can leave me a message and I will get back to you after I see it."

He didn't mention playing games again.

Besides the vague feeling that Li Mu probably wouldn't have time at the moment, he had just arrived in Jianqiao and needed some time to adapt.

"Okay, keep up the good work. By the way, you are unfamiliar with the place, so it would be best for you to bring some gifts when you visit the professors you will be communicating with in the future. It will bring a lot of benefits." Li Mu suggested.

Ask said: "Giving gifts? Is that the 'social etiquette' of your country?"

"Yes, I've taken the things. Even if we don't say there's any special care, at least you won't encounter any inexplicable difficulties during this exchange and study." Li Mu replied.

"Okay, I'll go buy gifts tomorrow." Ask thought about it and decided to do it.

Li Mu gave another suggestion: "You don't need to buy any expensive gifts. Just go to Chinatown and spend some money to buy some porcelain. That stuff is not expensive and looks high-end. It's a sure way to fool foreigners."

Ask: "Li, I'm a foreigner too..."

……

After ending the call with Ask, Li Mu turned his attention back to the WIFI list.

Jianqiao University Library Database, Cavendish Laboratory Database, Molecular Biology Laboratory, Computer Laboratory Database, Artificial Intelligence Ethics Research Institute Database...

Li Mu was dazzled by the names of the laboratories.

But although there are a lot of things, there are very few things that can be downloaded.

For example, molecular biology is not very useful after learning it now; as for artificial intelligence, although Xia country is leading in semiconductors now, it is not that far ahead, so it is a luxury even if we try to develop artificial intelligence.

After thinking for a long time, Li Mu set his sights on the Cavendish Laboratory.

This laboratory was built in 1874 and enjoys great reputation throughout the world. Its research scope includes astrophysics, particle physics, solid state physics, biophysics, etc. It is a fairly comprehensive physics laboratory.

Any bit of the information in it would be enough to shock the world's physics community.

Li Mu first used keywords to search and found the aerospace section. As expected, many application cases appeared, including satellites, D bombs, rockets, and everything else.

Then just click Download.

After finishing the selection, Li Mu's breathing stopped for a moment when he saw the progress bar of 0/1260G download.

It was because Ask stayed long enough this time, otherwise he would never have finished downloading!
"Go down slowly. Fortunately, we don't have to worry about Ask running around this time." Shaking his head, Li Mu sighed, and immediately went to the laboratory to continue to conquer the packaging technology.

……

The difficulties of surface mount technology have gradually become clear.

They are the design and manufacture of high-precision welding nozzles, high-speed and high-precision identification and positioning of LED chips and substrates, vision-based high-precision positioning during the eutectic process, and stepped pulse temperature control based on a specific temperature curve during the welding process.

To overcome these difficulties, it is necessary to involve the design and manufacturing of hardware and equipment, as well as refined control and optimization of the production process.

The former was easily dealt with by Li Mu who had the information.

But for the latter, you need to keep experimenting to find the most suitable solution.

As for multi-chip packaging technology, this is more complicated and can currently only be studied by Li Mu and Huang Xinhua.

……

In front of the lab bench, Huang Xinhua said: “Although multi-chip packaging technology has many advantages, we still need to explore how to connect all the components together and how to solve the problems of thermal management and reliability.”

Li Mu thought for a moment and said:

“The connection problem, I think, can be solved by drilling holes in the chip and filling them with conductive materials such as metal to accommodate electrodes to connect the chips vertically.”

"As for thermal management, internal stress caused by the mismatch in thermal expansion coefficients between the chip interconnect material and the substrate can be alleviated by adding bottom fillers such as epoxy resin and organic silicone to the bottom of the chip."

"The reliability problem, to put it bluntly, is the problem of operating voltage, which can be solved by strictly controlling the uniformity and consistency of materials..."

……

Listening to his answer, Huang Xinhua nodded continuously.

The experts and professors standing behind him nodded their heads rapidly, with expressions like elementary school students listening to a lecture.

Many people showed expectant eyes, hoping that Li Mu could directly give the experimental plan as he did before.

But this is obviously impossible.

After explaining the principle, Li Mu immediately said: "Dear experts and professors, this is my initial idea, but it is hard to say whether it will work, so I would like to ask for your help in verification."

(End of this chapter)