Although semiconductor-grade monocrystalline silicon is only one grade below photovoltaic-grade monocrystalline silicon, the purity has been increased by 5 9s.

The purity of photovoltaic-grade monocrystalline silicon is 99.999999%, followed by 6 nines, but semiconductor-grade monocrystalline silicon requires 11 nines.

With the improvement of purity, the requirements for plant equipment and control accuracy have suddenly increased by I don't know how many times.

The purification of semiconductor-grade monocrystalline silicon is only the first link in silicon wafer manufacturing, and the equipment in the follow-up chamfering, cutting, chemical mechanical polishing and other links is basically all imported.

Because the market size of silicon wafers is not large, with only more than 10 billion US dollars in the world, it has not been the focus of domestic semiconductor research from the beginning.

The main thing is to concentrate on doing big things,

It is only possible to selectively abandon certain links and markets.

As a result, the current global silicon wafer market is basically occupied by Shin-Etsu Chemical and Shenggao Group in the island country.

The two of them alone have stolen 58% of the global market share.

The rest was also divided between Treasure Island, Hans Country, and Stick.

China's domestic wafer manufacturing capacity can basically be said to be blank.

At a time when the trend of de-globalization is becoming more and more obvious,

This is actually very dangerous.

Now Eagle Sauce is just restricting chip manufacturing equipment,

But if he asks a few younger brothers to stop supplying silicon wafers to China,

Even if we conquer the lithography machine, we will fall into the dilemma of not having a silicon wafer to engrave.

In fact, in recent years, the country has also begun to realize this problem.

and began to work hard to try to get through this most upstream link,

But because it's a high-investment, low-return thing, progress is slow.

At present, the silicon wafers produced in China are mainly 8-inch and 12-inch large silicon wafers, which basically rely on imports.

Although there are a few companies that can manufacture 12-inch silicon wafers, due to technical and equipment reasons, the yield rate is very low, and they have been in a state of loss, and they dare not expand production at all.

However, it is a good choice for the systematic Kangchi.

Low investment, medium return, belongs to the industry he can get.

At the same time, it is also his ticket to enter the semiconductor industry,

You can't just come up with a 14nm lithography machine, right?

Let's not talk about funding.

Countless scientific research workers, day and night hard research, have not been overcome, but a person who came out of nowhere came up and picked peaches,

Who can stand this?

Give them a little bit of face and buffer time.

So the hard bone of silicon wafers, I'll gnaw on it!

Analysis of semiconductor-grade monocrystalline silicon smelting, consuming mastery points 5!

As Kangchi pressed the option, a flood of knowledge rushed into his brain.

Hey?

Why isn't it as painful as you imagined?

Kangchi frowned suspiciously,

The last time I analyzed the lens process, it was much more painful than when I analyzed the lens.

The amount of information analyzed this time should be no less than the analysis lens.

Kangchi was ready to be in pain for a few minutes,

But I didn't expect that after only three seconds, the pain disappeared!

At the same time, he was also surprised to find that the knowledge analyzed this time was also deeply integrated with the knowledge theory he had taught himself during this time.

It feels like learning a bunch of theories and then doing countless more practices.

It's a bit of a natural and integrated feeling.

Kangchi couldn't help but be a little surprised,

I didn't expect to learn theoretical knowledge in advance, and there is such an effect?

With theory + practice, Kangchi at this time feels like a real monocrystalline silicon smelting expert.

He can understand all the difficulties and solutions of smelting, and he can also understand all the design and principles of single crystal furnaces.

That's cool, isn't it?

Kangchi spent more than ten minutes, slowly recalling the knowledge in his mind, and then continued to analyze it with great anticipation.

chamfering process analysis,

Consume 5 Mastery Points!

analysis of multi-wire cutting process,

Consume 10 Mastery Points!

analysis of chemical mechanical polishing process,

Consume 10 Mastery Points!

After consuming 30 mastery points, Kangchi has fully mastered all the production processes of 12-inch silicon wafers, as well as equipment manufacturing technology.

Now, he is no longer afraid of people asking questions about wafer manufacturing.

Even the best researcher or engineer of Shin-Etsu Chemical Co., Ltd. will definitely not be able to combine theory and practice like him, and eat the silicon wafer thing so thoroughly.

Finally, everything is ready, only the east wind is owed!

In order to lay the groundwork for the next plan, Kangchi turned on the computer and began to write the paper.

At the same time, he also contacted lawyers who specialize in patent matters and applied for several important patents.

Once the patent application is filed, you can start submitting your dissertation.

-----------------

Meanwhile, in the Blue Lagoon resort in Dongyang City, two men are sitting on deck chairs smoking cigarettes.

The man sitting on the left is wearing sunglasses, combing a bit of literary style, and only wearing a thin blue suit, which is quite a bit of fresh meat.

But the wrinkles at the corners of his eyes betrayed his age, and he would not be less than forty years old.

As he swallowed the clouds, his eyes kept looking at the children playing on the lawn, and it was not until he put out the cigarette that he turned his head to the middle-aged fat man beside him and said:

"I heard that the city intends to set up a separate high-tech zone on the side of the development zone?"

"Mr. Deng is so well-informed?" The middle-aged fat man's eyes narrowed slightly, "I just found out this in the morning." ”

"Are there any preferential policies?"

"The land price is 50% of the normal market price, half sold and half given, tax-free for three years, and 15% of the normal high-tech enterprises after three years, but the premise is that the investment scale is at least 100 million."

"Well, the policy is very good, does Director Wang think that our Hengxing Group is qualified to share a piece?"

"Hmm...... It depends on what name you use, if it's just your previous business, it definitely won't work, but if you set up a subsidiary and lean it on a high-tech enterprise, the problem will be solved. ”

Director Wang said, and glanced at Deng Xing meaningfully,

"The big problem is that the investment of at least 100 million yuan...... I heard that this audit is stricter, and the above is not a rabbit and no eagle, and the money is not in place, and the project must be started within half a year, otherwise you don't want to take away any of the money in the supervision account. ”

After hearing this, Deng Xing immediately frowned.

"Can't be accommodating?"

Director Wang shook his head: "This is not something I can decide, I am only responsible for processing the application, and it is our Guo Bureau who makes the specific decision." ”

At the mention of Guo Ju, Deng Xing felt a toothache.

After a moment of silence, he asked unwillingly, "Is there any other way?" ”

"There's a way to try, but it doesn't have to work."

"Oh? Tell me about it? ”

"It's very simple, this high-tech zone has just begun, and the city thinks it is very good, and thinks that this is a big fragrant bait, so it dares to formulate such high requirements."

"But in fact, after everyone sees such strict requirements, it is still unknown whether there will be a response from enterprises. Once the fragrant dumplings are sent out, but no one wants to taste them, does this requirement have to be lowered? ”

Deng Xing's eyes lit up after hearing this, and he said with a smile: "Director Wang is still experienced, you are responsible for reviewing the application, as long as you drag it on, no one will be able to snatch this fragrant dumpling, you can rest assured, it will still be the old rule after the matter is completed." ”

"Hey, look at what Mr. Deng said, what do you mean by dragging?" Director Wang said with a straight face, "I am just a small clerk, I can only do things in accordance with the normal rules and regulations, whether it works or not, it is not I who have the final say, but the regulations!" ”

"Oh, yes! Director Wang is right, it's me who made a mistake, don't take it to heart......"

Deng Xing hurriedly poured a cup of tea and moistened his throat to make amends......