After everyone dispersed, Wu Liankui pulled Li Guocheng to the conference room.

"Lao Li, I am familiar with the reception process, but I am not familiar with how to introduce it. When the time comes, we will divide the work, I will be responsible for the reception, and you will be responsible for the technical introduction, how about it? Wu Liankui didn't dare to hold it up, in case he made a fool of himself.

Li Guocheng thought for a while, "I roughly know what's going on tomorrow, but I won't participate in some study visits in the later stage, so you have to study hard." In fact, it's also simple, watch it a few times and remember it."

Wu Liankui thinks about the possible follow-up situation, and he is also big, but there is no way, this situation is now.

"Then let's prepare separately, I'll arrange the reception, you think about the technical introduction", Wu Liankui thought about the time constraints, and hurriedly acted separately.

Li Guocheng thought about it and felt that it was more reasonable to introduce while operating. Because the technical review was not completed, the chip preparation is now on hold. In order to check, the entire production line needs to be started. Thinking of this, I summoned all the people in the semiconductor laboratory.

"Tomorrow reception, we practice. Zhang Tou is responsible for the preparation of single crystal rods, is there a problem? ”。

Zhang Tou has been experienced in a hundred battles, and he is not stunned at all, "There is no problem!" He spoke sonorously and powerfully.

"Zhou Xiaojuan is responsible for cutting, Wang Dayong is responsible for grinding, do you have any problems?"

"There is no problem", Zhou Xiaojuan has seen the world because of family reasons, Wang Dayong is Wang Daring properly, and Li Guocheng is a little uneasy.

"Xiao Zhou, you will accompany Wang Dayong to do the grinding of 10 wafers, and you must pay attention to the dust cover to be installed in place, otherwise, the time for dust removal in the room will not be enough. Tomorrow you have to pay more attention to remind Wang Dayong."

"Okay" Zhou Xiaojuan didn't hesitate, Wang Dayong was a little unhappy, but Li Guocheng didn't bother to pay attention to her.

Yan Jiefang is responsible for the operation of the lithography machine, and Zhang Zhijing is responsible for the etching machine. You don't have a problem."

"There is no problem", the two of them are more reliable, as long as they follow the process, they are not easy to make mistakes in their work.

"After visiting the wafer preparation, you have to change the guard and be responsible for packaging. Zhou Xiaojuan is in charge of testing, there is no problem."

"This, I'm not familiar with the assembly", opened his head and was embarrassed.

"I won't test it either", Zhou Xiaojuan also objected.

"Later, I will teach Master Zhang to encapsulate first, and then teach Xiao Zhou to test, it is not too difficult, the key is to be careful."

"Okay, let's practice more today, and don't panic even if you make a mistake when you operate tomorrow, they won't understand it anyway."

Everyone was amused by Li Guocheng, thinking about it, it seemed that this was the case, and they didn't seem to panic in their hearts.

After the meeting, the entire dust-free laboratory was busy, and Li Guocheng kept shuttling in front of various processes, solving or answering various questions.

The whole process was busy until more than 8 o'clock in the evening, and everyone went home one after another.

The next day, the whole rolling mill was quieter, because the ministry had called last night and was not allowed to receive it with great fanfare. Early in the morning, Wu Liankui led people to tear down the banners that had just been laid out yesterday, and the slogans on the road were also torn off. Only keep a banner at the entrance of the dust-free workshop.

At about 10 o'clock in the morning, a bus stopped directly at the entrance of the laboratory, and everyone got off the bus.

There are not many people, only 12 people, all of whom are leaders of the mechanical and electrical department, and Zhao's father is impressively listed. There was a reporter and a cameraman in the team.

After some greetings, several people changed into dustproof clothes and masks according to the requirements. At this level, the inspectors were stunned, when had they seen this. The place to pay attention to it is a white coat, which is a one-piece dustproof suit.

Everyone did not enter the workshop, but experienced the changing and blowing at the door, and looked professional everywhere, and looked at this dust-free workshop in their hearts.

Entering the spacious workshop, looking at the transparent workplace and bright environment, everyone's inner evaluation has been raised to a higher level.

"Come, Xiao Li, the follow-up introduction will be handed over to you, the leader of the semiconductor experiment team", Li Huaide beckoned Li Guocheng to come out and introduced his identity to everyone.

"Hello leaders, welcome to inspect the dust-free workshop of our semiconductor laboratory. This kind of environment was all thought of, designed, and built by our workers. It can be said to be the first in China, and it is estimated that it is not far behind foreign countries."

When everyone heard this, they were all happy, and the reporters were busy recording, and the cameras kept taking pictures.

"Leaders, we are standing in this workshop, which we call the post-production workshop, which is mainly responsible for chip packaging and testing, and I will introduce the specific work here to you later. Please come with me", Li Guocheng introduced everyone into the wafer preparation workshop.

"Please see, this equipment is also the vacuum lifting furnace researched in our laboratory, with a vacuum degree of up to minus 5 power, which is mainly responsible for the preparation of single crystal rods. Now Comrade Zhang Tieniu is using the direct lifting method to prepare single crystal rods. When you look through this viewing window, you can see that it's very beautiful and fascinating."

Under Li Guocheng's introduction, everyone took turns to watch the lifting process through the observation window. It made me nervous, but fortunately there were no problems.

During the crystal pulling process, the bright light formed at the junction of the solid crystal and the liquid melt will appear brilliant and colorful. Everyone who watched was captivated and amazed.

After everyone finished reading it, Li Guocheng guided everyone to the cutting area, grinding area and oxidation area, and introduced the working principle and function of each process.

When everyone came to the lithography machine, looking at the purple light emitted by the lithography machine with modern industrial beauty, the purple light shone on the photoresist, forming a complex pattern, and everyone was even more amazed.

Yesterday, Li Guocheng avoided trouble, replaced the shell of the lithography machine, and treated the surface with a wire drawing process, which was low-key and luxurious.

took out a prepared mask and handed it to Zhao's father, "This is the internal structure diagram of the special chip for radio", and when everyone took turns to read it, Li Guocheng continued: "Everyone please look here."

As he spoke, Li Guocheng removed the shell of the lithography machine, and the structure inside was unobstructed.

"This is the mask in everyone's hand, on which parallel violet light passes through the mask, through the precision lens group here, the pattern is reduced, and then irradiated on the photoresist, through a chemical reaction, the irradiated part is exposed and hardened, this process is similar to the principle of a camera."

Li Guocheng picked up a wafer that had been exposed and came to the etching machine.

"This is etching equipment, first of all, the exposed wafer is immersed in this liquid for a certain period of time to wash off the unwanted photoresist. Then put it in the liquid in the middle, etch, and get the desired chip structure."

Li Guocheng demonstrated them one by one, and put the samples in front of everyone's eyes in the middle process, and handed them a magnifying glass for everyone to observe. Seeing the dense and fine nicks on it, everyone was deeply shocked in their hearts.

The next thermal spreading process only introduces the principle, and then the wafer that has completed the spreading is taken to the post-production workshop, slicing, packaging, testing, and all the processes are introduced in detail.

Thank you all for your support!! Ask for recommendations! Ask for a commuter pass! Ask for a review!

(End of chapter)