The silicon wafer preparation workshop is in another factory, which is also 5,000 square meters, but the requirements here are not as high as the chip manufacturing workshop, and are not dust-free and constant temperature environments.

That is, the requirements for cleanliness of ten thousand levels, the standards for clean rooms are divided into ten thousand levels, thousands, hundreds, and the highest ten levels.

The standard for this classification is the density of suspended particles allowed in each cubic meter of air with a particle size of ≥0.1 microns. If there are tens of 10,000 particles in one cubic meter, it is tens. And so on, only tens of meters are below tens.

The chip manufacturing workshop is the standard of level 10, and here is the standard of level 10,000, which is actually separated from the standard of the clean room.

There is no need for a yellow light environment here, just an ordinary fluorescent light.

However, Wang Yong and Xiao Ma Ge also put on dustproof suits as required and then passed through air to remove dust before entering the workshop.

This is completely different from the chip manufacturing workshop, because the requirements are not high and not that complicated. The production equipment has been installed and put in place, and the technicians are in the trial production stage.

Wang Yong had sharp eyes. In the huge workshop, he saw Huang Yuanhao discussing with several level 7 technicians how to debug and improve equipment. Huang Yuanhao was not tall, only in his early 1.6 meters, and was young, so his figure was smaller than those old technicians.

But everyone surrounded him, the little man, and listened to his explanation. Therefore, even though they were all wearing the same white dustproof suit, Wang Yong easily confirmed his identity.

"Let's go! Let's go and take a look."

Wang Yong nodded to the little Ma Ge beside him and took the lead in walking over.

"boss"

Wang Yong and the others approached, and Huang Yuanhao noticed them and quickly greeted him.

Then he saw that Brother Ma, who had not seen for a long time, was also following the boss, and then said hello to Brother Ma, "Manager Ma"

"Haha! Manager Huang, you are going to change your name. Manager Ma is now my secretary and assistant, the company's vice president. All departments of the company will accept his leadership in the future. He has the power to perform some leadership functions on my behalf." Wang Yong specially introduced Xiao Ma Ge's new identity.

"I'm sorry! I'm so reverent, I should call you Mr. Ma."

"It doesn't matter, it doesn't matter how you call it. The name is just a symbol. Oh, right! Manager Huang, what are you discussing?"

Brother Xiao Ma accompanied the boss to inspect the new official as soon as he took office. He suddenly felt full of ambition. Now the boss raised him in public, and he felt very comfortable.

Therefore, when he answered Huang Yuanhao's tone and actions, he was so free and confident, but he was extremely smart and was afraid of arousing his boss' disgust, so he quickly changed the topic.

"Boss, Mr. Ma, it may be that during the handling process, the automatic lifting mechanism in the silicon wafer refining furnace shook a little, so that during the trial production, it caused multiple lifting failures.

We are discussing how to correct it based on the technical manual." Huang Yuanhao explained to Wang Yong and Xiao Ma Brother.

When talking about technology, Wang Yong couldn't help. Instead, he asked Huang Yuanhao with a smile: "Manager Huang, I know nothing about these mechanical equipment. You can give us some information!"

Indeed, when Wang Yong saw these mechanical equipment, he looked at them and couldn't even call out his name.

"Boss, the large furnace in front of us, which is like a steelmaking Martin furnace, is called a silicon wafer refining furnace, which is also called an arc reflector furnace, which is similar to the principle of steelmaking.

However, the technology is more complicated. It prohibits air from entering. Each time it is dissolved, it must be vacuumed and then filled with argon to ensure that there is no contact with air during the entire smelting process.

Because of this, the entire smelting process and subsequent lifting of the crystal rod are fully automatic, and it is controlled by an automatic control system."

Speaking of this, Huang Yuanhao couldn't help but sigh: "Boss, it's too expensive to do an experiment, which makes me scared now. I'm walking on thin ice and don't dare to enter the next experiment."

"Where are the most expensive things, please tell me?" Wang Yong asked him curiously.

"The raw material we use is electronic grade polysilicon. This ultrapure material is very expensive and cannot be produced by itself in China. We lose hundreds of thousands of dollars every time we fail.

There is also the graphite crucible inside, which is also imported and will be scrapped after only a few times. One cost 500,000 yuan.

Boss, think about it, we will disappear in one experiment once, and how much psychological pressure does this cause us!

Boss, after this period of research and exploration, I think it doesn’t matter if we can’t make the equipment, because the equipment can be used for many years until this equipment is completely outdated.

However, we use the commonly used raw materials and parts every day, and it is extremely expensive. If all of them are imported, it would be too unprofitable.

Boss, I think we should produce these commonly used things ourselves.

For example, the electronic-grade polycrystalline silicon is made of sand. The raw materials are super cheap and can be seen everywhere. Why don’t we find a way to make them ourselves?

There is also the electronic-grade crucible, which is different from the small crucibles that used to make pot makers to make iron. It is simply that the requirements are stricter. If a crucible is dared to cost 500,000, why don’t we develop it ourselves?"

Huang Yuanhao was kind-hearted and thought about the company, but he didn't know the difficulty. In fact, the Chinese Academy of Sciences has been studying and researching these two things he gave. After so many years, he just couldn't make them. Moreover, China could not produce electronic-grade polysilicon until 2018. It can be seen how difficult it is.

Wang Yong didn't know even more. He thought Huang Yuanhao's words were very reasonable, so he smiled and said to him: "Manager Huang is right. This is your next stage of research task."

"What? Is it my opinion that I took the task to myself?" Huang Yuanhao was a mute person and could not say anything about the pain.

In fact, compared with chip manufacturing, although the technical difficulty is several levels lower than that of silicon wafer manufacturing, it is not easy at all. The difficulty lies in the basic materials.

When the silicon rod is pulled out, it is not a cylinder, but has irregular appearance and must be polished into a regular geometric cylinder that is straight through 6 inches.

The grinding wheel used for this grinding is artificial diamond. In the 1990s, due to insufficient technology, artificial gold, steel and stone were still very expensive, and China could not make it.

Then apply protective liquid to prevent surface oxidation and then enter the next cleaning process.

Yes, after applying the protective liquid, it needs to be cleaned again. It seems to be a waste of time. In fact, the cleaning process is particularly harsh and must be carried out under the protection of argon.

Argon is very expensive. This inert gas has very little content in the atmosphere. It is a mineral like natural gas, buried deep underground. There is almost no such precious gas in China. Only the United States produces this precious gas.

After cleaning, slices are sliced. After several technological innovations, the slices were cut with grinding wheels, and later changed to lasers, and later changed to wire cutting.

This wire cutting is not easy. The steel wire that is resistant to high temperatures and is very thin can not be made in China.

There are also the abrasives used for cutting, which are very fine. You need to use a high-precision ball mill to grind the abrasives very fine. This processing technology and materials cannot be made in China.

There are too many difficulties in this! And they are all difficult in terms of basic materials. Wang Yong casually stated small goals, and I don’t know how long it will take to achieve them.
Chapter completed!