Rewrite the Technological Landscape

Chapter 89 Lithography

At 1:57, Meng Qian waited for He Wenkang at the entrance of the factory. He Wenkang was accompanied by his male secretary Cai Yuan.

After a simple greeting, they entered the factory together. At the door, Meng Qian and Zhang Guoqiang looked at each other and smiled, but the two did not say hello.

“Mr. Meng, do you know why I brought you to the factory?” He Wenkang asked after entering the factory.

Meng Qian shook his head, he really didn’t know.

“You are right if you don’t know, and I don’t know.” He Wenkang smiled at Meng Qian, who laughed inexplicably.

The entire factory has five workshops, a canteen, a dormitory, and a sports area.

He Wenkang took him to the middle of the factory building. As soon as he entered the door, he could see the equipment on both sides and the dense cables on the ground.

The most conspicuous thing is a semi-exposed “monster” on the right hand side of the door.

He Wenkang led Meng Qian to the equipment. Several employees in the factory greeted He Wenkang, and at the same time looked at Meng Qian. After all, he has been at the factory door recently. Someone asked Zhang Guoqiang who he is, Zhang Guoqiang. Only Tao is here to understand the situation, without going into details.

“Do you know what this is?” He Wenkang stopped and stared at the device for a while, then turned his head and asked Meng Qian.

“Lithography machine.” Meng Qian replied in a low voice, and also stopped staring at the lithography machine. A strange emotion came to my heart. The lithography machine, how many Chinese people feel the pain…

He Wenkang tilted his head slightly to observe Meng Qian’s expression, but the emotion that Meng Qian showed on his face made him suddenly bewildered. How did he feel that he felt… the feeling of killing his father?

“Does Mr. Meng know what these things are for?” He Wenkang, who didn’t understand Meng Qian, drew a circle with his hand to the lithography machine and asked.

“Probably understand, but not in detail.” Meng Qian took two steps forward to see more clearly.

“Then I will briefly introduce President Meng.” He Wenkang also took the first two steps and pointed to an elliptical object on the very edge of the device. “This is the laser, the energy controller on the side, and the beam correction below. These three things control the first input of the light source. The most important aspect of this link is stability.

But it’s a stable one. We at Huaxia have been poorly controlled for so many years. Does Mr. Meng know why? ”

Meng Qian shook his head.

“Does Meng know the power consumption of such a lithography machine in one day?”

Meng Qian shook his head again.

He Wenkang glanced at the laser and said, “Start with 10,000 kWh.”

Meng Qian was a little surprised. He did not understand this detail in later generations, and he has been understanding more upstream things in this life. “It’s because of the energy conversion rate, right?”

“Yes.” He Wenkang nodded at Meng Qian, “The average energy conversion rate of the lithography machine is less than one thousandth.

So how to ensure a stable high power output for a long time? This is the first stability of the light source input. The second stability is how to improve the energy stability to improve the yield rate. You must know that once the final energy appears a little bit very small The error of the device will affect the yield rate. The last one is stable, which is also the most basic one. How to reduce power consumption through equipment stabilization.

An excellent laser and energy converter will affect the company’s electricity cost and product yield. ”

“A fab with three or four photolithography machines will cost tens of millions of optoelectronics every year…” Meng Qian subconsciously continued.

“The current difference in power consumption caused by the advantages and disadvantages of the equipment on the market is as high as twice.” He Wenkang walked a few steps to the right. “The energy from the energy controller will enter the beam shape setting device, and different beams will carry Comes with different optical effects.

In the past, there will be energy detectors. As I said earlier, the error of energy will directly affect the yield rate, so this is regarded as a second confirmation of energy. The thing under the energy detector is called a mask. This thing is essentially a The glass engraved with the chip circuit is similar to the film of a camera.

But with just such a piece of broken glass, Mr. Meng guesses how much it is? ”

Meng Qian thought for a while and said, “Mr. He can just say the answer.”

He Wenkang smiled faintly, “A piece of broken glass, one million.”

After that, He Wenkang signaled Meng Qian to take two steps to the right. “The most important thing under the reticle is the most important thing. The objective lens, Meng can always count. There are more than 20 lenses in total, and through these 20 lenses. , The circuit diagram on the mask is scaled down, and then the laser is mapped onto the silicon wafer, and the objective lens also needs to compensate for various optical errors.

President Meng also knows this thing very well, we can’t figure it out.

The following two platforms are the measuring table and the exposure table. The normal process is to measure first and then expose. The accuracy of the entire measuring table is nanometers, and the difference of 1 nanometer will not work. The automatic focusing system we use is designed by the U.S. .

Okay, this is a lithography machine that can be seen from the surface, but the technology is not only these, for example, see the conveyor belt here, this is a transmission system, it is also a nanometer level, and an acceleration system At the aviation level, the entire lithography machine also needs a shock absorption system, an environmental control system, a complete machine control system, an automated operating system, and so on.

This is the lithography machine. After modularizing it, the difficulty of each module is a reduced version of the lithography machine. ”

He Wenkang suddenly felt a little talking to himself, and he didn’t know if he was speaking to Meng Qian or speaking to himself.

The two stopped silently in front of the lithography machine at the same time, each with its own thinking.

He Wenkang is recalling everything he has done in the past, and Meng Qian is thinking about everything he should do in the future.

A few minutes later, the two of them glanced at each other unintentionally. Between them, He Wenkang suddenly raised the corners of his mouth and looked at the lithography machine again. “The semiconductor industry is really a place to devour dreams.”

Let’s go, Mr. Meng, I will take you to meet some leaders of the factory. ”

“Wait.” Meng Qian called He Wenkang, “I suddenly have an idea, why should you play a game with me?”

“Games?” He Wenkang looked confused.

“Well, play a mind-reading game.” Meng Qian explained with a smile, “We asked each other questions, some questions about factory employees, we two answered at the same time, and Cai Ge went to ask for the answer, and see who of us guessed. How accurate is it?”

He Wenkang was even more puzzled, “What does President Meng mean?”

“If Mr. He doesn’t dislike me being naive, let’s play with me.” Meng Qian smiled meaningfully.

Looking at Meng Qian’s appearance, although he didn’t know what he was going to do, He Wenkang nodded in the end, “How to make a question?”

“Let me come first.” Meng Qian scanned the factory, then pointed to a woman in her 30s, “How does that female employee think she is up to now?”

“Ji Xiaoli.” He Wenkang almost blurted out, “She should be busy researching recently.”

Meng Qian smiled slightly, “Then I guess she should be busy organizing the wedding recently.”

He Wenkang glanced at Meng Qian sensitively, and then asked his secretary Cai Yuan to ask Ji Xiaoli. A minute later, Cai Yuan walked back quickly, with a slight hesitation, “Ji Xiaoli didn’t say it at first, but later asked her. Said she was really busy getting married recently.”

He Wenkang looked at Meng Qian’s expression differently, and then he pointed in a direction, “How old is the man who is moving things?”

“42.”

The answers of the two are naturally the same, and both are correct.

It was Meng Qian’s turn to ask again, “That man over there, has he bought a house recently.”

He Wenkang glanced at Meng Qian’s gesture, “I remember Xiaofang said before that he would buy a house after the Chinese New Year, UU reading www.uukanshu.com should have already bought it.”

“He didn’t buy it.” Meng Qian said affirmatively, “His mother is sick.”

“What? Xiao Fang’s mother is sick?” He Wenkang was startled, and then looked at Cai Yuan, “Go ask the situation!”

After such six cycles, Meng Qian was able to answer He Wenkang’s question, but He Wenkang did not answer Meng Qian’s question. When it was He Wenkang’s turn to ask again, he nodded subconsciously, “Meng Qian’s intentions are true. It’s admirable.”

“Mr. He misunderstood.” Meng Qian said lightly on the side, “I don’t want you to think that I am careful. When I really become the owner of the factory, I can no longer understand the situation of every employee like I do now. .”

“Then what is this?”

“I understand them for a more comprehensive understanding of the current situation of the factory, to prepare for the smooth acquisition, and also to prepare for the arrangements after the acquisition.

As for today’s game, it is only a whim, because I just want to prove to Mr. He that everyone is an independent individual, and everyone will encounter various things at different stages of life.

I’m thankful for being able to understand myself all my life by myself.

Can we be responsible for others? The fact is that we are neither qualified nor capable of being responsible for any other person’s life.

Sell ​​the factory to another semiconductor company to take a more stable and old path, or sell it to me for a different experiment. How different choices will affect the employees is not up to you, nor is it up to me. , They decide by themselves.

We, only ourselves can be responsible.

Mr. He, now, I want to buy this factory.

You, would you like to sell it? ”

……