Chemical vapor deposition of metals is not too groundbreaking.

Speaking of which.

In fact, there are only a few ways to grow these crystals.

Many laboratories around the world have conducted research on these methods.

What really affects the application of gallium oxide.

In fact, it is how to carry out large-scale production.

and industrial production.

It is necessary to make gallium oxide substrates available in practical applications.

Small-sized crystals like microparticles that do not have any effect.

This is because it cannot be used as a substrate material for high-frequency components.

It must reach more than two inches to have a certain use value.

Otherwise, even the basic cutting will not be possible.

"Help me connect with a pressure vessel manufacturer."

Zhang Xingyang withdrew his gaze from the computer and ordered Su Xiao.

Although Su Xiao is currently the head of the Materials Experimental Center.

But in front of Zhang Xingyang, it seems that she will always be the newcomer who has just stepped into the materials industry.

"Any special requirements?"

After hearing this, Su Xiao didn't ask why, but directly asked Zhang Xingyang if he had any requirements.

If Zhang Xingyang wanted to tell her, he would naturally say it.

If you don't want her to know, then it's useless to ask.

"It's enough to have a first-class manufacturing qualification, and if you can, the super-grade qualification is the best."

Zhang Xingyang thought for a while and said.

Metal meteorological deposition requires the use of a high-temperature reactor.

Although UHV is not required, the reaction temperature needs to be above 1200 degrees Celsius.

At present, the institute does not have a particularly suitable reaction vessel.

"I know, I'll get in touch."

Su Xiao nodded and said.

The materials testing center often requires some special pressure vessels.

There are also some more familiar pressure vessel partners.

It's just that in terms of qualifications, Su Xiao really doesn't know if they have first-class qualifications.

So he didn't reply to Zhang Xingyang directly, but said that he wanted to get in touch.

"Is there anything else I want to do?"

Su Xiao then said.

"No, you can get busy first."

Zhang Xingyang turned his head back to the computer screen and looked at several different interfaces.

There are at least a dozen pages open on the computer screen at the same time.

Each page is densely packed with symbols and route diagrams.

Let's look at it again.

It may be dizzy just by looking at it.

But Zhang Xingyang was able to look at these dozen documents.

These are the relevant articles for the industrial production of gallium oxide.

It was all written by Zhang Xingyang during this time.

However, it has not yet been published.

Haven't even experimented yet.

In fact, if you look closely, you can find it.

Some of the key data aspects of the article are empty.

It's as if you're just waiting for the data to fill in.

"Then I'll get busy first."

Su Xiao said a word, then turned around and left the office.

Only when he was about to go out did he glance back at Zhang Xingyang.

I saw that he was still immersed in the computer interface.

Didn't look up at her.

So I left the office feeling a little disappointed.

The research and development of the metal vapor deposition method is not particularly complicated.

Even without Zhang Xingyang, domestic researchers can complete super-large research within more than ten years.

What Zhang Xingyang did was to advance this time.

"After the current industrial production of gallium oxide, it should be able to meet our power period requirements."

Zhang Xingyang kept calculating the design of the gallium oxide converter.

And thinking about the subsequent application.

There are two main ways to apply gallium oxide.

The first is the use that Zhang Xingyang wants at the moment.

It plays an important role in the power period.

This is generally used as an epitaxial part.

Epitaxial parts are not single crystals.

It has a substrate if gallium oxide is used as an epitaxial part.

Most of the base is silicon carbide.

Its advantages are that the oxygen content, carbon content, and defect density are all very low.

As a result, the reliability of the device will be very high, and it will be difficult to damage due to problems such as leakage.

Here's an example.

In the original power generation satellites, professional astronauts entered about every three months to replace the damaged converters.

Then after changing to gallium oxide.

This maintenance interval can be about eight months.

The attrition rate has been reduced by more than two times.

In addition, the energy consumption of the device will be reduced by more than 60 percent.

can be solved by the way, and the satellite heat dissipation problem that makes Zhang Xingyang a little uncomfortable at present.

After all, neither the cooling system nor the coolant is cheap.

And it needs to be replaced regularly.

Astronauts regularly maintain the contents, in addition to replacing the converter.

It is necessary to replenish the lost coolant.

The second application is also of some use to the current Zhang Xingyang.

That is, to directly manufacture logic chips or memory chips.

This is not epitaxial wafers.

Rather, it is a monocrystalline polished wafer.

The research institute is currently set up in the chip industrial park in Jiangcheng.

Just broke ground.

If the gallium oxide single crystal polished wafer is successfully developed.

It can be used as a core product of the chip industrial park.

Whether it's a logic chip or a memory chip.

For the domestic market, they are very useful.

Especially logic chips.

If the development is successful.

can solve a problem that Zhang Xingyang has not solved before.

The intelligent problem of the sub-guided sub-warhead.

——

"So quickly found a production unit with relevant qualifications?"

Zhang Xingyang looked at Su Xiao with some surprise and said.

It's only half a day since I put forward my own needs.

Found it so quickly.

It was a bit unexpected.

"Luckily, one of the relevant companies we cooperate with has a first-class qualification."

Su Xiao put a company-related document on Zhang Xingyang's desk and said.

"Previously, we needed a large reactor to verify the industrialization of boron nitride.

I was in contact with them at the time.

It's just that the project ran into some problems and was shelved.

However, their contact details have been retained. ”

Boron nitride can actually be regarded as a fourth-generation semiconductor.

It also has the properties of an ultra-wide bandgap.

However, the development of boron nitride is slightly more difficult.

It is a more niche research direction than gallium oxide.

However, boron nitride has several different allotropes.

Some materials are capable of being used as space-grade thermal shielding materials.

It is estimated that Su Xiao and the others were preparing to develop the industrial synthesis of boron nitride for this direction.

The hydrothermal synthesis of boron nitride also requires a high-temperature and high-pressure vessel.

"Did you contact them?"

Zhang Xingyang said while flipping through the other party's corporate information.

Judging from the information, the other party's qualification is indeed first-class.

Moreover, it is a long-established manufacturer of first-class pressure vessels.

The most important thing is that the reputation is very good.

The pressure that comes out of production is easy and there are basically no accidents.

"It's already been contacted, and their people will be there tomorrow."

Su Xiao nodded and said.

The other party still attaches more importance to this order.

In addition to the fact that there are not many orders for pressure vessels during this time.

There is another important reason.

The reputation of the institute is very good.

The other party obviously knows the relationship between the research institute and the current materials giant Longteng Group.

If you can make a connection.

Then it will be very beneficial for their future development.

Longteng is a leader in the field of new materials.

There is a great demand for pressure vessels.

In the past, their pressure vessels basically came from pressure vessel manufacturers in Donghai City.

This is also an exchange of interests.

Donghai City has given Longteng Group a lot of preferential policies.

Longteng Group can also be regarded as reciprocating, bringing a lot of orders and consumption to the local area.

However, the research institute and Donghai City do not have too deep friendship.

Therefore, I did not look for a pressure vessel manufacturer in Donghai City.

Instead, I found a pressure vessel company that has a good relationship with the research institute itself.

"They're pretty fast."

Zhang Xingyang also finished reading the other party's information at this time, raised his head and said.

"But it's a good thing to be fast, to be able to see the large size of the GaN wafer faster."

Zhang Xingyang slightly revealed the purpose of customizing the pressure vessel at this time.

"Are we going to have a new way to produce gallium oxide?"

Su Xiao's eyes lit up, and he asked a little quickly.

"How big can it be?"

During this time, Su Xiao spent a lot of time on the guide mold method.

According to her own estimates, if she continues to follow this route.

It will take at least two or three years to complete the development of a two-inch chip.

In a short period of time, it is almost impossible to complete large-scale development.

"I devised a new way of production."

张星阳 says:

"But the exact effect will not be known until after the experiment."

"According to the current situation, the minimum finished product can be four inches in size."

Four inches is nothing to Zhang Xingyang.

It can only be said that it is barely enough.

However, for Su Xiao, he was a little shocked.

They worked tirelessly in the experimental center, and it was not easy to raise it to nearly two inches.

And it will take at least two or three years to get rid of these two words.

Zhang Xingyang suddenly took it out and was able to prepare a four-inch gallium oxide wafer, which made him unacceptable.

"So what we did before was in vain?"

Su Xiao said a little frustratedly.

After being busy for so long, I suddenly realized that my work was not worth mentioning.

It's still a bit big for her.

"Not really."

Zhang Xingyang said without the slightest hesitation:

"The guided model method does have its advantages."

"Metal vapor deposition can only be used for epitaxial wafers.

If you want to manufacture qualified single-crystal polished wafers, you can only rely on the guide mold method. ”

After listening to this, Su Xiao reacted after pondering for a while.

Indeed it is.

Single-crystal polished sheets, there is no way to perform metal vapor deposition.

Large-scale production can only be carried out by the guide mold method.

"That's true, but the process of the guide method is really difficult."

Su Xiao's brows furrowed slightly and said:

"At the current pace, it will take at least two years for us to complete the process development."

"Two years is not a long time for us."

张星阳 says:

"We can afford to wait."

——

"Hello, Dean Zhang."

The next day, in the conference room of the Institute.

A middle-aged man who looked honest greeted him kindly.

"Chen Shiqi?"

Zhang Xingyang stretched out his hand and shook it with the other party.

"Exactly down there."

The other party said with a smile.

"I didn't expect Dean Zhang to be so young."

"It's really young and promising."

Zhang Xingyang is actually quite old.

But the face has always looked relatively immature.

Without looking at those eyes.

At first glance, many people will think that he is a graduate who has just stepped out of school.

"Thank you for the compliment."

Zhang Xingyang said with a smile.

In fact, many people have talked about him, and his face is immature.

But as long as you get to know him a little deeper, you won't care about it.

"Let's get straight to the point."

"Your company has a first-class pressure vessel manufacturing qualification, and should be able to manufacture a reactor that meets these requirements, right?"

After speaking, Zhang Xingyang handed an A4 paper with specific parameters written on it to the other party.

Before Chen Shiqi came, he inquired about Zhang Xingyang's personality.

I didn't ask too much about it, though.

Still, I got some effective news.

One of the most useful things is that the people at the institute are very efficient.

It's better not to mess up some of the mess.

It can be inferred from this that Zhang Xingyang, as the dean.

The same is true for estimates.

So Chen Shiqi didn't say much, but directly picked up the piece of paper and looked at it.

Able to be sent out of the company to conduct consultations.

Chen Shiqi is still familiar with some technical aspects.

It didn't take long to read the above.

I thought about my own production capacity a little.

He replied, "We are indeed able to produce, and that is not a big problem for us." ”

In fact, domestic pressure vessel manufacturers are very involuted.

There are many reasons for this.

The Dragon Kingdom is a large agricultural country.

Modern agriculture involves a large number of chemical productions.

For example, ammonia is synthesized.

This technology, for most countries in the world.

These are all technologies that are difficult to implement.

The most important reason for this is:

Ammonia synthesis requires the use of numerous pressure vessels.

This is especially true for the super-large ammonia production line.

For example, the 800,000-ton production line that was put into operation in China before.

Put it in the world, they are all one of the best existences.

And the number of such production lines in China is not small.

The strength of domestic pressure vessel manufacturers is also very strong.

Chen Shiqi's pressure vessel production company does not have special qualifications.

Some oversized pressure vessels cannot be produced.

At present, some small and even medium-sized chemical plants are being eliminated in China.

Their lives are not too easy.

If you want to survive, you must either keep rolling up in the country, or find a way to go to sea.

Some third world countries still have a lot of demand for small and medium-sized pressure vessels.

But Chen Shiqi's company obviously does not have such a channel.

That's why they take this business so seriously.

If you can take advantage of this to catch the ship of Longteng Group.

Their days will be better for a while.

"How long will it take?"

Zhang Xingyang asked a more important question.

Chen Shiqi thought for a moment and replied: "It will take about half a year. ”

"It's been too long."

Zhang Xingyang shook his head and said.

Chen Shiqi wanted to explain: "Dean Zhang, it does take a certain amount of time to manufacture pressure vessels. ”

"Twice the price, three months."

Zhang Xingyang didn't care too much and said directly.

"If we can't, there's no need for us to keep talking."

Chen Shiqi's brain was running at high speed.

If the factory works in three shifts, it can actually be completed in three months.

After thinking about it for a while, I had to take the line of the research institute.

"Okay, we agreed." Chen Shiqi made up his mind and said.

(End of chapter)