Chapter 302: Mass Production of GaN Semiconductors!

Chen Shiqi's pressure vessel factory seems to pay more attention than it seems on the surface, and this amount is not a particularly large order.

It took only two and a half months to complete the manufacturing of the large-scale pressure synthesis furnace.

"It took us a lot of effort to finally complete what you wanted half a month ahead of schedule."

Chen Shiqi stood beside Zhang Xingyang with some vigor and said.

"You've worked hard."

Zhang Xingyang patted the other party's shoulder and said.

The work of manufacturing pressure vessels is not so easy.

Especially some high-standard pressure vessels.

It's even more difficult to manufacture.

Normally, it takes half a year to produce these devices.

Zhang Xingyang gave them double the payment, so that the other party compressed this time to three months.

This is already calculated based on their 24-hour overtime work.

I don't know how they managed to compress the time for half a month on top of this.

"Originally, according to the estimated manufacturing time, it should be half a month before it can be delivered."

Chen Shiqi explained.

"But more than two months ago, it happened that a pressure vessel ordered by a chemical plant was cancelled."

"We did the math and found that with a little time it would be enough to meet your requirements."

"This is the only way to be able to deliver half a month ahead of schedule."

Zhang Xingyang only learned the detailed process of this matter when he heard this.

The domestic chemical industry is about to reach the level of rolling up to the sky.

The capacity of this set of pressure vessels is small.

It does not meet the standards of a recently built chemical plant.

At this time, domestic chemical plants basically use large-scale or even super-large pressure vessels.

The output of chemical products is calculated in the hundreds of thousands of tons.

Take Longteng Group's carbon fiber substrate and fiber filament as an example.

Those large chemical plants are capable of producing tens of millions of tons of various types of chemical fibers every year.

Under the squeeze of these super-large chemical plants, the small chemical factories that were still able to survive carefully naturally continued to close down and merge.

In fact, it is difficult for small chemical plants to achieve a good degree in terms of emissions and environmental protection.

All kinds of toxic and harmful substances are either discharged into the air or into the water body.

According to the increasingly strict environmental protection policies in China.

Even if the big chemical conglomerates don't squeeze them, they will struggle to survive.

Their limited funding does not allow them to upgrade their production equipment and detoxify their emissions.

So this set of relatively small pressure vessels.

It flowed into Zhang Xingyang's hands like this.

"In terms of payment, we will call you after we complete the test."

Zhang Xingyang couldn't wait to see the working status of the reactor.

After giving an order, he asked people to pull the reaction vessel with a large area to the plant.

The dark blue color steel factory building is very tall.

Enough to accommodate reactors with erection heights of up to 15 meters.

The 15-meter-high reactor can only be said to be miniature compared to the tens or hundreds of meters of large-scale reactors in large-scale chemical plants.

However, considering that it will produce high-purity gallium oxide in the future.

This flaw can be endured.

You know, last year, the world's gallium production was just over 100 tons.

Again, this is the result of counting all the crude gallium and fine gallium.

The output of gallium used to produce semiconductors is only more than 60 tons.

These galliums are basically used as gallium nitride.

Production has become a very important component in military equipment.

And now, after this set of equipment is put into operation.

According to Zhang Xingyang's prediction.

A single furnace is capable of producing more than 20 tons of high-purity gallium oxide wafers.

The price of these chips is as good as gold!

On the market, one tonne of unrefined crude gallium is worth more than $320,000.

In fact, this period is in a cycle of gallium price decline.

In 2001, when the price of crude gallium was crazy, it even climbed to a sky-high price of nearly $2.5 million a ton!

Even at today's lowest crude gallium price.

Zhang Xingyang's gallium furnace is also worth more than $6.4 million.

Not to mention that Zhang Xingyang produces high-purity gallium oxide wafers with very high added value.

The value of these chips can climb more than tenfold.

It's almost the difference between purified silica and wafers.

The former is nothing but gravel, while the latter is an important raw material for the chip industry.

From a material point of view, there is not much difference between the two.

But the value has changed dramatically.

This is the added value that modern industry gives it.

The same is true for high-purity gallium oxide wafers.

Crude gallium is just the most basic raw material.

Basically, they are all by-products of electrolytic aluminum.

High-purity gallium oxide wafers are the source components of the fourth generation of semiconductors.

Grasp the technology.

It's like having a hen at home that lays golden eggs.

It brings in more than $4 billion in revenue every year.

The cost of raw materials is not expected to exceed 1 billion yuan.

In other words, this is a huge income that will exceed 30 billion yuan per year.

Of course, these revenues are all theoretical.

Because of today's world market, it is difficult to eat so many high-purity gallium oxide wafers.

At present, in addition to Zhang Xingyang them.

In the world, few people still apply gallium oxide to the field of use.

Most of the first-mover countries are still repeatedly polishing second-generation semiconductors, such as gallium arsenide.

The gallium nitride of the three generations of semiconductors is still exclusive to scientific and technological powers.

Everyone is basically still tossing about the various applications of gallium nitride.

Especially in the field of radar.

The development of active phased array radar in China is very closely related to the development of gallium nitride components.

In addition to domestic, look at the world.

It is also Eagle Sauce on the phased array radar, and has made a slight achievement.

However, compared with the domestic one.

It's still a chess game.

If the GaN component completes mass production development.

Then the rest of the world will be left far behind the ass at home.

Originally, they could still see a little bit of the taillights in front of them.

But as soon as gallium oxide technology comes out, they may not even be able to see the taillights.

"The first round of testing is ready and ready to start."

Su Xiao led someone to conduct a simple inspection of the pressure vessel, and then walked towards Zhang Xingyang.

Zhang Xingyang looked at the record form in his hand, looked up and said:

"Let's get straight to it."

The two most critical indicators of pressure vessels.

Temperature, pressure.

It is used as a reaction site for high temperature and high pressure.

The container must withstand temperatures of about 700 degrees Celsius and hundreds of atmospheres.

There can't be anything that could go wrong.

Even a tiny crack.

can lead to an extraordinarily terrible disaster.

Be aware that in the case of high temperature and high pressure, even micron-level fractures.

will have uncontrollable consequences.

Su Xiao took people and tested the test valve of the equipment.

The temperature inside the reactor began to rise.

At the same time, the gas is continuously fed in and pressurized.

The pressure was increased to the design reaction temperature before stopping.

This state is maintained for a period of time to detect if there are any problems.

Chen Shiqi was also a little nervous looking at the various indices of the reactor.

Although they have carried out a series of tests before leaving the factory.

There were no problems.

However, this large equipment has problems during transportation on the road.

That's all too common.

So he was also very nervous.

If something goes wrong, then they're likely to lose a big and high-quality customer like the Institute.

The test lasted about thirty minutes.

Fortunately, there were no problems.

The reactor is in good working condition.

Chen Shiqi breathed a sigh of relief.

"Next test, will you do a gallium oxide gas test?"

Su Xiao didn't look at Chen Shiqi, who was in a cold sweat on the side, and asked Zhang Xingyang directly.

"Two more tests."

Zhang Xingyang said with some caution.

"Make sure there are no problems in the production of gallium oxide."

The raw material of gallium oxide, for today's research institutes.

It's not cheap.

Because the quantity produced is small, it only appears as a by-product of electrolytic aluminum.

Their demand is so great that it's easy to run out all at once.

I want to splurge on gallium raw materials.

Then at least until they do gallium mining.

Liang Yi has just obtained the right to mine minerals.

Construction work is still underway on all fronts.

It will be four months before the first batch of crude gallium leaves the factory.

Zhang Xingyang's current metal vapor deposition method.

In the world, it is considered a deviance.

Gallium oxide gas is attached to the metal surface by means of pressurization.

So as to obtain a uniform thickness of the elemental wafer.

"It's okay to be careful." Su Xiao nodded and went back to the second experiment.

This time the experiment was a little longer.

It took an hour to finish the test.

After checking and confirming that there were no problems with the reactor.

Su Xiao started the third test.

This time, the test temperature and pressure were close to the operating limit of the reactor.

Happily, however, it has withstood such a harsh test of work.

It lasted for more than an hour without any problems.

Chen Shiqi's face, which was still full of clouds, instantly cleared up when the results came out.

"Dean Zhang, the quality of our equipment is absolutely world-class!"

"There are no quality problems!"

Looking at Chen Shiqi, who kept boasting, Zhang Xingyang smiled and said:

"The quality of your products is really good, and the payment can be sent to you today."

Chen Shiqi hurriedly waved his hand and said, "Don't worry about the money, you can call us whenever you want." ”

Although the other party said so, the institute has rarely defaulted on funds over the years.

Zhang Xingyang immediately called Liang Yi and told him about it.

Let him pay Chen Shiqi for their factory.

For the sake of their hard work, they delivered the goods half a month ahead of schedule.

Zhang Xingyang also specially asked Liang Yi to pay an extra 20% of the payment.

It should be regarded as a reward for the other party's early delivery.

If you want others to work hard for you, money is indispensable.

sent away Chen Shiqi, who still wanted to climb the relationship.

Zhang Xingyang immediately let people start the production of the first furnace of gallium oxide wafers.

A large amount of electricity is transmitted to the device.

The reactor starts to heat up, and it will be a few minutes before it heats up to working heat.

"In the future, we must transform it to be able to receive electricity wirelessly."

Su Xiao looked at the equipment, stood beside Zhang Xingyang and complained.

In the past few months, many of the equipment of the institute has been transformed into a working form of wireless power transmission.

Everyone has found that this format has many advantages.

The first is to worry about the failure of the plug or cable of the device, which will cause problems in the experiment.

The second is the ability to reach the operating power of the device almost instantaneously.

Especially for some high-power equipment, it saves a lot of time.

"Let's talk about this later, the transformation requires a lot of gallium oxide semiconductors."

Zhang Xingyang said noncommittally.

"Once the operating temperature is reached, the next step is to pressurize."

Metal vapor deposition is almost completely different from traditional manufacturing methods.

It's like the inverted mold method that Su Xiao and they used before.

The gallium oxide is heated and melted before being poured into a mold.

It sounds similar to how steel is smelted.

However, there are many problems in the smelting of gallium oxide.

First of all, the inversion method must be carried out at high temperatures.

The temperature is much higher than the metal vapor phase method used by Zhang Xingyang.

It reached 1800 degrees!

It is necessary to use the very expensive metal iridium as a crucible.

To smelt gallium oxide once, the metal iridium required is as high as hundreds of thousands of yuan.

This also leads to this production method, and the price of gallium oxide produced remains high.

This is also an important reason why Zhang Xingyang does not want to adopt this production method. 、

"I really want to see what's going on inside."

Su Xiao said with some emotion.

They can't see anything inside the reactor right now.

It is only possible to look at the data of the reactor to speculate on the production of crystals.

"From the weight detector, there are already crystals forming on it."

Zhang Xingyang looked at the slowly growing weight data and said calmly.

Crystal production is a relatively slow process.

This is especially true of this vapor phase growth method.

Compared with the inverted mold method used by Su Xiao, the speed is even slower.

It takes about one or two hours to produce a single furnace of gallium oxide by the inverted mold method.

But the vapor deposition of metals, if you want to grow it completely.

It takes at least one day and one night.

"Are you going to keep a vigil here today?"

Su Xiao looked at Zhang Xingyang, who didn't want to leave to rest, and asked.

It was nearly eight o'clock in the evening.

Although for the researchers, this point in time is nothing.

However, the gallium oxide monocrystals in the reactor are fully grown, and it will basically be tomorrow night.

Su Xiao was a little worried about Zhang Xingyang's body.

"Stay until 12 o'clock, it's a dangerous time just starting, I'm going to see it myself."

Zhang Xingyang looked at his watch and said.

Inside the reactor, the reaction is going on silently.

It almost represents the future of the fourth generation of semiconductors, and Zhang Xingyang cannot be allowed to be a little sloppy. (End of chapter)