Once she starts working, Ling Yue will be described as a workaholic.

And Zhang Jia’s importance is reflected.

In order to allow Ling Yue to have a better rest, Zhang Jia moved directly into the living room of Ling Yue's small house No. 302. An iron bed was placed next to the door with a curtain drawn over it, which neither affected Ling Yue's reading nor affected the beauty of the living room.

Ling Yue locked herself in the room and remained silent all night. The next morning, Ling Yue got up early.

Sitting at the desk, she has now adjusted her mood.

These things can affect her, but they won't make her stay immersed in sadness.

Ling Yue opened the computer, and there was clearly written on it the lithography machine project task book.

Yes, this time it is not a plan, because Ling Yue will not always focus on the manufacturing of this instrument. She has other tasks now, so these things can only be handed over to Qian Zilin to find someone to do it.

The photolithography machine sounds very advanced, but in fact the principle is very simple, and everyone has heard of it.

Photolithography technology is the core equipment for chip manufacturing. Of course, it can also be called mask aligner exposure machine, exposure system, photolithography system, etc. There are many names, but the most well-known one is the three words "photolithography machine".

The principle is to use a technology similar to photo printing. I don’t know if you have ever developed a photo negative, or have seen it. In general spy movies, there must be a place where photos are developed, and there is a red light in it.

This is also the principle of a photolithography machine, which prints the fine patterns on the mask onto a silicon wafer through light exposure.

The principle is simple, but it is very difficult to implement in practice. Not to mention anything else, it has been blocked for many years by something called photoresist.

Finally, a company broke through the layers of blockade and broke out.

Photoresist is a very important part of this process, which mainly makes the printed graphics more durable, precise and reproducible.

Photoresist is also called photoresist. You may not know what it is. Let me put it this way, photoresist is also a type of semiconductor.

What can semiconductors do? Common LED lights use this technology.

It is a kind of etching-resistant thin film material whose solubility is changed mainly through irradiation or radiation of ultraviolet light, electron beam, ion beam, X-ray, etc.

It is a light-sensitive mixed liquid composed of three main components: photosensitive resin, sensitizer and solvent. It is mainly used in fine graphic processing operations such as display panels, integrated circuits and semiconductor discrete devices.

Um, it seems I have said too much, let's get back to the topic. In addition to the lithography machine, the lithography machine also needs to prepare the chip design pattern, use advanced light sources and lenses, and a precise control system to print the fine graphics on the mask onto the silicon wafer through light exposure, commonly known as copying on the silicon wafer, and finally perform packaging and testing.

A task statement is different from a plan. A plan requires market analysis and research on whether these theories are feasible, but a task statement only needs to separate the various tasks.

When we were in Interstellar, what we entered into the robot panel was the mission book.

The more you write, the more proficient you will become.

Before Ling Yue knew it, Zhang Jia had been knocking on the door for a long time, and only then did she come back to her senses.

When I opened the door, I saw Zhang Jia standing upright at the door with a lunch box in his hand.

"Academician Ling, it's time to eat."

"Thanks."

Ling Yue nodded, thanked him, and then sat down outside to eat in peace.

Zhang Jia is not as easy to talk to as An Kexin. If she brings the lunch box in, Zhang Jia will insist on standing by and waiting for her to finish eating before leaving.

At this moment, Ling Yue couldn't help but sigh at Comrade Xiangzhong's perspective on people.

Although Zhang Jia looks like a boy, he is very meticulous and even Ling Yue, a technical staff member, is inferior to him.

If Zhang Jia wasn't so lively and active and liked fighting and killing, developing him and making him a research assistant would be a good choice.

Zhang Jia noticed that Ling Yue glanced at her from time to time, and asked doubtfully, "Academician Ling, is there something wrong?"

I didn't hear a doubtful tone, but I did hear a sense of solemnity and murderousness.

But forget it, I can’t handle it.

Ling Yue ate the food in the bowl silently, mouthful by mouthful, while Qian Zilin knew how to find time.

"Oh, you're eating. That's rare."

Ling Yue:......

Not necessarily, she used to eat it, just irregularly.

"Uncle Qian, is there anything wrong?"

Ling Yue's eyes were filled with dissatisfaction, and Qian Zilin was gloating.

Qian Zilin saw this and laughed out loud. It was a rare opportunity to make Ling Yue lose face.

"Something's going on," Qian Zilin stopped laughing, then sat up straight and said, "What was it you talked about with Director Fu the day before yesterday? He called me yesterday, but I wasn't home and didn't answer. He called me again today, just to ask about this."

Ling Yue nodded and was about to stand up when she saw Zhang Jia's unhappy look coming over. She quickly took two more mouthfuls of rice and said, "Wait, I'll finish my meal first."

After hurriedly finishing all the food, Ling Yue put down the lunch box, stood up, and went back to the room to print out the refrigerator plan.

"This is for long-term storage of things that are not resistant to corrosion and easily spoil. It's a refrigerator."

Upon hearing this, Qian Zilin opened the plan. It didn't matter whether he read the front part or not, but he needed to read the conclusion at the back.

Not long after, Qian Zilin looked up and said, "This thing is pretty good. These foreigners are more willing to spend money than us. Maybe we can make some money."

"Well, I'm thinking that we'll have more and more projects in the future, but right now the country is shouldering the burden, and basically everyone needs to tighten their belts to barely make ends meet. If we had money, let alone other things, we could sell some resources to some countries that are more friendly to us. Even if it's not much, it could help alleviate the domestic situation."

"That's true," Qian Zilin nodded. "Even if we can't use it now, the international situation will change sooner or later. Then, these things can be used to develop our economy and culture."

After talking for a while, seeing that Ling Yue was busy, Qian Zilin quickly left with the documents. There was still time to go to the Forbidden City, so as not to forget it tomorrow.

Ling Yue saw Qian Zilin off, closed the door, and then returned to her room to continue working.

In addition to the photolithography machine, there are more than a dozen instruments of various sizes. Without these, it would be difficult to make anything.

She didn't care about it at first, mainly because in the interstellar world, there was no shortage of these things.

If you really can't afford to buy them at home, it's not difficult to find a couple of them at a scrap yard.

Who knew that in that era, there was really nothing. The collector she used was the one she made when she made a washing machine for Sister Wu.

Thinking about it, Ling Yue suddenly felt like crying.

He shook his head, getting rid of the negative emotions, and then put his hands back on the optical frequency keyboard.

Number 7 kept turning around in the lower right corner of the computer. Ling Yue wanted too much information, and it was now just a data porter.

For the sake of its health, it also needs to screen the information and try to choose technology that is closer to this era.

Otherwise, I'm worried that Ling Yue will collapse before he finishes writing the task book for the equipment.

This was an idea that it and Ling Yue came up with. It was also a good opportunity to see if this method could keep Ling Yue's vital signs intact.