I Sign In Every Day To Support the Anchor Wife

Chapter 345:

Li Miner never caught fire.

Of course.

Nor is she without supporters.

After all, it has been live broadcast for three months,

She insisted on broadcasting for more than five hours every day.

accumulated over a long period of time.

There are also seven or eight hundred regular fans in the live broadcast room.

These people would stand in front of the screen every day and wait to watch her live broadcast. Although there is nothing superfluous, some people will occasionally give her some gifts.

Three or four thousand dollars a month is always there.

4.7 In this case.

When Li Min'er saw Zhang Chao, the emperor user, enter the live broadcast room, the whole person was dumbfounded.

She was stunned there, not saying a word for a long time.

If it wasn't for the fans' reminder, she would have even forgotten to say hello.

"Chao, Chao Huang, hello, I'm Min'er from Jiaxing Guild."

Li Miner hurriedly stood up to say hello to Zhang Chao. She was so stupid and cute, and she was completely out of proportion to her **** body.

Zhang Chao immediately laughed when he saw this scene.

And the next moment, the sound of the system sounded.

[Ding, the host stays in the live broadcast room of the anchor Li Miner for one minute, and the sign-in is successful, and a 5nm lithography machine will be rewarded! 】

? ? ?

Zhang Chao was stunned for a moment, lithography machine, what is that?

PS: Ask for automatic subscription, ask for flowers, ask for evaluation tickets, ask for rewards! .

Chapter 348

Lithography?

Still five nanometers!

Zhang Chao held the phone with a confused face.

Does he really not understand what this thing is?

And the next moment.

The information that appeared in his mind made him stunned.

Lithography machine is a key equipment for manufacturing micro-electromechanical, optoelectronic, and diode large-scale integrated circuits.

It is divided into two types,

One is that the template is the same size as the pattern, and the template is close to the wafer during exposure.

The other is to use a projector-like principle to obtain a smaller exposure pattern than the stencil.

High-end lithography machine is called the flower of modern optical industry,

It is very difficult to manufacture,

Only a few companies in the world can make it.

Therefore, the exposure machine is expensive,

Usually around $30 million to $500 million.

more importantly.

There are many brands of lithography machines, which can be classified into the following categories according to different technical routes:

High-end projection lithography machines can be divided into two types: stepping projection and scanning projection lithography.

The resolution is usually between tens of nanometers and several micrometers.

Zhang Chao browsed the information in his mind, and the whole person was dumbfounded.

He really didn't expect this thing to be so important.

The name of this uncommon industry 25 manufacturing equipment is closely related to the core product of the next generation industry, the chip.

There is no high-precision chip,

Those core technologies that change human life and economy,

Such as artificial intelligence, virtual reality, the Internet, the next generation of wireless communications, are not possible.

It can be said,

The lithography machine is in this era,

As important as steam engines, generators, and computers were in the first three industries,

It is a benchmark for measuring a country's scientific and technological research and development and industrial level.

Many experts pointed out that

The difficulty of manufacturing an advanced level lithography machine in Huaxia is comparable to that of the atomic bomb.

And now.

A world's most advanced lithography machine turned out to be his reward!

Zhang Chao was speechless in an instant.

this thing,

It's useless to ask for it yourself!

Can't eat, can't drink, can it be exchanged for money?

Think about it,

Zhang Chao called the system in his heart.

[System, this thing doesn't seem to be able to be shipped to China, right? 】

This is the truth.

Put simply,

A lithography machine is an indispensable tool when manufacturing chips.

There is no chip without a lithography machine.

Whether it is a mobile processor for a mobile phone or a desktop processor for a computer, it is a form of chip.

From electric toothbrushes to aircraft rockets, the manufacturing of modern society is inseparable from chips.

Therefore, the importance of a lithography machine that can make chips is self-evident.

The working principle of lithography is to cover the surface of the silicon wafer with a layer of photoresist with high light sensitivity, and then use light (usually ultraviolet light, deep ultraviolet light, extreme ultraviolet light) to irradiate the surface of the silicon wafer through the mask. The photoresist that the light hits reacts.

After the photolithography is completed, the part of the silicon wafer without photoresist protection is etched,

Finally, the remaining photoresist is washed away, and the construction process of the semiconductor device on the surface of the silicon wafer is realized.

It seems that the working principle of the lithography machine is not particularly complicated,

But it is actually very difficult,

requires very strong lithography technology,

And master the world's strongest lithography technology is a company of the sea coachman.

But the problem is.

Behind this company,

With the support of some large European and American enterprises.

At their instigation,

China is strictly prohibited from importing lithography machine technology.

in other words.

If the system gives him the reward now, he may not be able to bring it back to Huaxia at all.

even,