Technological power starts with upgrading lenses

Compared with silicon wafers and plastic lenses, the manufacturing difficulty has increased by more than one level.

Not only is the equipment itself complex and large, but the material requirements for the equipment itself are also higher.

For example, the furnace body and furnace tube of a single crystal furnace use a high-purity SiO2, which can withstand chemical reactions and thermal stress at high temperatures.

The furnace bottom and furnace cover, which are in contact with silicon materials, are made of ceramic materials, made of high-purity Al2O3 and Si3N4 and other high-temperature resistant materials, which have strong heat conduction and corrosion resistance.

The most critical part is the heating rod.

Kangchi's single crystal silicon purification method is not the mainstream Tchaikralski method, but the floating zone method, also called the zone smelting method.

The principle of this method is to put a ring heater on the polycrystalline silicon rod, melt and purify the polycrystalline silicon rod in sections, and finally obtain 11 single crystal silicon rods with a purity of 9.

Its advantage is that it can be manufactured faster than the Cchaikolaski method.

It takes about 8 hours to pull out a 12-inch, 1.5-meter silicon rod using the Chakraski method, but it only takes 1 hour or even less using the floating belt method.

In addition, the floating belt method can also change the shape of single crystal silicon rods through technical means.

For example, silicon wafers are usually round. After photolithography and etching, the silicon wafer becomes a wafer. Finally, like cutting a cake, the wafer is cut into dozens of square chips. After packaging, it becomes the user's hand. CPU.

The process from circle to square will inevitably cause waste at the edges.

If the floating belt method is used, as long as the shape of the heating rod is changed, it is theoretically possible to produce silicon rods larger than 12 inches, reducing the waste of subsequent wafer cutting.

It is even possible to continue technological breakthroughs and pull out square silicon rods to achieve zero waste of wafers.

However, the floating belt method has very high requirements for melting and purification technology. Currently, the yield rate of single crystal silicon rods obtained by this method is very low, and it is a method that needs to be perfected.

Kangchi's plan is actually an improved version of the floating belt method.

It is done by adding a cooling rod under the heating rod.

This can not only further improve the melting speed and quality, but also quickly stabilize the shape of the silicon rod.

However, its technical difficulty has undoubtedly increased by another order of magnitude. The control capabilities of heating rods and cooling rods are extremely demanding. The complexity of its equipment is not on the same level as ordinary single crystal furnaces.

Because of this, Kangchi can no longer complete this project by itself like the lens production line.

The material of the single crystal furnace alone is beyond the reach of ordinary people.

This requires professional technicians and professional equipment to create the parts on his drawings.

Therefore, the first thing Kang Chi did when he returned to Dongyang City was to set up the personnel department of Dahan Silicon Industry and let them recruit a large number of outstanding engineers and scientific research and technical personnel from all over the country.

The second thing is the initial project bidding for Dahan Silicon Wafer R\u0026D and Manufacturing Center.

This matter is not difficult. As long as the news is released, many construction companies will respond.

What Kangchi has to do is to screen out reliable construction companies and ask them to quote prices.

He temporarily left this aspect of work to Fang Qiming.

Fang Qiming was already very busy taking care of Daqin Optics, and he didn't know much about project bidding. However, Kang Chi had to draw design drawings during this period and was too busy, so Fang Qiming had no choice but to bite the bullet.

Mainly because there is a shortage of people.

With the establishment of Dahan Silicon's personnel department, this situation was quickly alleviated.

In addition to recruiting people, there are some things HR can do.

——

Dongyang Investment Promotion Bureau.

After Director Guo came to the office, he habitually read the latest investment newspaper first.

This is a habit he developed after coming to China Merchants Bureau. It will help him understand the situation of China Merchants Bureau in various places. When advancing his work, he may be able to find inspiration from it.

When he turned to the third page of the newspaper, a headline suddenly caught his attention.

"Dahan Silicon Industry?"

This name was too familiar to him.

Director Guo couldn't help but cheer up and read on.

The article is not long. It first briefly introduces the contents of the 100-day battle in Steel City, and then reports on their latest progress:

Dahan Silicon Industry and Steel City successfully signed an investment letter of intent worth one billion!

Director Guo's brows suddenly jumped.

This big silicon industry...

After hitting a wall in Dongyang, he hooked up with Steel City so quickly? !

He immediately realized something was wrong!

Dahan Silicon has never thought about hoarding land.

They really want to invest in making silicon wafers!

Otherwise, how could they go to a remote rural area like Steel City, where there is little room for land appreciation?

At this time, Director Guo was in the same mood as if he had eaten the answer.

The duck with its mouth actually flew away.

And he vomited it out on his own.

Who would it not be uncomfortable to replace?

"No, they just signed a letter of intent!"

There is still room for redemption!

Director Guo immediately took the newspaper, found Wang Ziliang in a hurry, and slammed the newspaper on the table: "Quick! Contact Dahan Silicon quickly and tell them that we agree to let them settle in the high-tech zone and invite them to come over as soon as possible for detailed discussions!"

After hearing this, Wang Ziliang couldn't help but frown.

He first glanced at the newspaper on the table and quickly understood what was happening.

However, he did not panic. Instead, he took out another newspaper and said to Director Guo: "Don't worry, Director Guo. I also know about this, but why don't you read this newspaper first..."

"Dongyang Evening News?"

Director Guo took the newspaper from Wang Ziliang and read it with some confusion.

"Analysis of the phenomenon of illegal land hoarding by enterprises - Talking about the recent strong refusal of many enterprises to settle in the High-tech Zone by the Dongyang Investment Promotion Bureau"

The article first talked about the recent investment incident that happened at the Dongyang Investment Promotion Bureau, and used sharp writing to satirize the outrageous applications of many companies, including Dahan Silicon Industry.

In this paragraph, the reporter also interviewed relevant experts and professors from the industries involved in these companies, and through their professional analysis, pointed out how outrageous the applications of these companies were.

Especially the company that said it would spend 100 million to develop recyclable rockets was scolded the most.

In the middle of the article, we will analyze the true purpose of these companies on this matter.

During the period, many cases of illegal land hoarding by companies were cited, and the harm of corporate land hoarding was further explained.

At the end of the article, he highly praised Dongyang Investment Promotion Bureau.

It is believed that they have not been overwhelmed by the pressure of attracting investment, but strictly abide by the bottom line, which has eliminated corporate land hoarding from the source, given these companies with impure motives a blow, and created a fairer and more just business in Dongyang City. Investment Environment.

This article was written by Yuan Shulin, a reporter from Dongyang Evening News,

She is considered a senior reporter in Dongyang Evening News and is famous for her sharp writing style of negative news. Many leaders keep her at a distance for fear of being included in the news with her pen.

Although what she wrote this time was also negative,

However, the work of Dongyang Investment Promotion Bureau was highly praised, which made Director Guo feel a little lucky.

At the same time, he also realized the meaning of Wang Ziliang's words just now.

People just praised you, and you agreed to move in...

Will it catch people’s tongue?

What will your leader think of you?

Director Guo suddenly fell into a dilemma again.