sinovels Chapter 671 Li Han: Our Structure Is Still Too Small
Chapter 671 Li Han: Our Structure Is Still Too Small
The light source is one of the core components of the lithography machine.
But the lens is also a very important part of the lithography machine.
For example, the lenses produced by Zeiss are very important to ASML.
It can even be said to be indispensable.
because.
Without Zeiss lenses, ASML would not be able to produce extreme ultraviolet lithography machines.
Zeiss made its fortune in the early days of the microscope business.
In 1846.
Carl Zeiss founded a workshop for manufacturing microscopes in the Kingdom of Hans, which was the early prototype of the Zeiss company.
The most important part of an optical microscope is the lens.
The production of lens parts of cameras, photolithography machines and other equipment also relies on optical lens production technology.
therefore.
Zeiss has established its leading position by relying on its optical lens manufacturing technology accumulated over more than 100 years.
Maybe someone will ask.
Isn't it just the optical lens of the photolithography machine? Isn't it possible that Long Guo can't make it?
In fact, this is mainly a problem of craftsmanship.
The lithography machine mainly contains three major systems, namely light source, lens and workbench.
Chip production in progress.
The photolithography machine plays the role of "tracing".
It uses extreme ultraviolet light to repeatedly expose the silicon wafer surface, print the designed drawings onto the wafer surface, and then engrave it.
The task of the lens system is to shine light onto the wafer.
Because the light must ensure high purity and high resolution.
therefore.
There are very high requirements for lenses.
for example:
In terms of lens finish, chips manufactured with 7 nanometer and below processes need to ensure that the EUV lithography machine lens finish is below 50 picometers.
what does that mean?
To know.
1 meter equals 1 trillion picometers.
And 50 picometers is equivalent to using bulldozers to flatten all the land in southern Yunnan Province.
and!
The flatness of the entire province needs to be within 1 cm.
It is almost equivalent to pushing the entire land in southern Yunnan Province to be as flat as a mirror. You can imagine the difficulty.
To achieve such a process, not only ultra-high-precision grinders and ultra-fine lens abrasives are needed, but also highly skilled grinders.
also.
For EUV lithography machines.
Because the extreme ultraviolet light it uses is absorbed by glass, it can no longer work with traditional lenses.
for this problem.
Zeiss uses lenses coated with molybdenum silicon to reflect light more than a dozen times.
Then, through lenses and lenses with a height of 2 meters and a diameter of 1 meter, the emitted extreme ultraviolet rays are collected into uniform light with controllable direction, and then projected onto the wafer surface for engraving circuit diagrams.
And obviously.
There is currently no optical company in China that can reach the level of Zeiss.
The manufacturing technology of lithography machine lenses is not achieved in a day. If the country wants to catch up, there is still a long way to go.
Seagull is a well-known camera brand in Longguo in the 1970s and 1980s.
In terms of lenses, we have a certain amount of technical accumulation.
Even though it cannot reach the level of Zeiss, it is definitely one of the few companies in China in the field of lenses.
It can completely serve as a lens component supplier for domestic photolithography machines!
But for now, Seagull Company is having a very difficult time.
As Longguo joins the WTO, the domestic market opens up to the world. Without the protection of the domestic market, Haiou needs to directly compete with other foreign camera brands, which has a great impact on Haiou.
At present, Haiou Company's operating conditions are not very good and it continues to suffer losses.
In this state, Seagull is very likely to reach cooperation with Blue Star Electronics.
the next day.
That is January 25th.
today.
It was the first concert of virtual singer Luo Tianyi.
The image of this cute girl with gray hair, green eyes, jasper in her hair, and a dragon knot on her waist has now become a popular target in the island country.
under official propaganda.
It is the hottest topic in the island country at the moment.
The 12,000 concert tickets have already been sold out.
In terms of ticket prices, they are divided into three levels: 10,575 pele, 15,863 pele and 26,439 pele.
If converted into gold, there are three levels: 100 meters gold, 150 meters gold and 250 meters gold.
This price is definitely not cheap.
Because even the cheapest one costs 680 yuan!
But even such an expensive ticket price cannot resist the enthusiasm of the die-hards.
Recently.
On the island nation's Internet, many people did not get tickets the first time or when they added tickets, so they posted online expressing their willingness to pay three times the price.
No.
The price of the third most expensive tier is currently as high as 1,000 meters per piece, which can be enough to buy a top mobile phone!
But even if the price has tripled, few people are still willing to sell their tickets.
Even for some die-hard otaku fans who are not short of money, they even say on the Internet that they dare to buy it for as much money as you dare to pay!
It can be seen from this.
How popular Luo Tianyi is here in the island country!
Information from the market is also fed back to the operations department.
Let the person in charge, Li Han, realize it.
Luo Tianyi's influence in the island country was much higher than they expected.
Originally, they thought they would be thankful if half of the initial 10,000 tickets were sold.
But the result was that in less than three seconds, it was completely empty.
Later, some fans who couldn't get tickets asked the organizers to increase the number of tickets.
then.
They added another 2,000.
This is already the limit.
Because the entire site was fully budgeted, more than 12,000 people could be squeezed in.
No more.
Once an emergency occurs on site, it is likely to cause a stampede.
*`"Our structure is still too small!"
In the office.
Li Han couldn't help but sigh.
Judging from the current situation, let alone 12,000, even if it is expanded to 15,000 or even 20,000, I am afraid they will be sold out!