Chapter 47 Pu Weicai
January 15, Saturday.
Heshou City.
Wei Ming, who took the high-speed rail, came to this city.
For this reason, he specially asked Sister Fan for two days off, treated more than 30 patients with stones in advance, and freed up three days in total, just to solve a problem.
Talent!
R&D talent for high-end lithography machines.
Moreover, Wei Ming already has a clear recruitment target. He thinks that the most suitable and outstanding talents are in Heshou City.
This person is called Pu Weicai.
Wei Ming saw many news about this person while searching for relevant information on the Internet.
He also noticed that the R&D team led by this person has achieved many research results related to lithography machines, and understood the awesomeness of this person.
Because these days Wei Ming is also vigorously learning some knowledge related to lithography machines, and has learned about several core technologies of EUV lithography machines.
One, assembly.
One of the most important technologies of lithography machines is assembly, which is to assemble all the components, and then make the resolution reach the highest, while the overlay accuracy reaches the best.
For example, the change in the temperature inside the machine should be controlled within 5 thousandths of a degree, and there must be a suitable cooling method and an accurate temperature sensor. A photolithography machine contains more than a dozen subsystems, tens of thousands of mechanical parts, and hundreds of sensors, each of which must be stable.
Second, control.
The photolithography machine is the product with the highest precision requirements in the manufacturing industry. The principle of photolithography is like engraving nanometer-sized text on an area the size of a grain of rice. The requirements for error can be imagined.
For example, there are two synchronously moving worktables in the photolithography machine, one for the film and the other for the film. The two must always be synchronized, with an error of less than 2 nanometers. The acceleration of the two worktables from static to dynamic is similar to that of a missile launch.
Third, light source.
It takes extremely high energy to make EUV. EUV can be absorbed by air, so the photolithography process must consume power to maintain a vacuum environment. What's more exaggerated is that EUV can also be absorbed by lenses, so only a dozen face lenses can be used to concentrate the light source through continuous reflection.
Every time it is reflected, 30% of the energy of EUV will be lost. After a dozen reflections, theoretically only 2% of the light reaches the wafer. From the perspective of catching up, a semiconductor company in Han country once said that the energy conversion efficiency of extreme ultraviolet light EUV is only about 0.02%.
4. Lens.
The central lens of the lithography machine has high requirements for the lens. The lens located in the center of the lithography machine is composed of more than 20 pot-bottom-sized lenses in series, which requires high-purity light transmission and high polishing.
At present, the lenses that meet the requirements of the lithography machine cannot be manufactured by machines. The advanced lithography machine lenses are all polished by hand. There are not many companies that can meet this standard. There are only one or two companies in the world, all of which are old Western companies.
Among these four categories of core technologies.
Wei Ming learned that this great man Pu Weicai and his technical team have conquered two in just ten years.
They are duplex table technology and light source technology.
The high-precision duplex table developed by his team has a control accuracy of 2 nanometers, which is as advanced as the most advanced level abroad, and has leveled the technology gap. It can be said that it has become a tie.
In terms of light source technology, Pu Weicai also took only a few years to develop the EUV light source system by taking advantage of China's leading position in the field of laser technology and its advantages in materials, and the final energy utilization rate reached 5%.
Compared with the 2% of ASMC's EUV lithography machine, the energy utilization rate has more than doubled!
This means that during the use of the lithography machine, more than half of the electricity can be saved, a large amount of heat is generated, and the stability of the system is greatly improved.
In other words, in the field of EUV lithography, Pu Weicai, a great man, and his technical team have broken through two of the four core technologies.
Among the remaining two core technologies.
In terms of assembly technology, Modu Microelectronics has made great breakthroughs in recent years, and has the ability to combine more than 100,000 parts into a lithography machine and keep it working stably for a long time.
Only in the lens, China has not yet made a breakthrough, because the lens used in ASMC's EUV lithography machine is not made by machine, but by engineers from the lens manufacturing company who have spent 20 years and hundreds of thousands of hours carefully polishing it. It is the product of the ultimate craftsmanship!
China wants to catch up, but it can hardly find a master craftsman who can sit down and polish for decades, and can polish a lens to the size of a blue star, with a 1mm bulge at most.
However, Wei Ming said: Leave the lens problem to him.
With Xiao Hei, let alone polishing to the level of "blue star area, millimeter bulge", as long as there is enough time, it can be done to the nanometer level.
Leave the lens to Wei Ming.
So the most important thing now is to recruit Pu Weicai, a great man, and bring him into your company.
However, great men are not something you can recruit just by saying you want to recruit.
In order to get Pu Weicai's contact information, know his work unit and place of residence, Wei Ming offered a reward of 1 million in the headhunting market, and only then got the other party's phone number and learned some specific information about him.
Before coming to Heshou City, Wei Ming called him to recruit him, but was flatly rejected:
"Sorry, I have no plans to change jobs. Please don't call me again."
"Wait a minute, Dr. Pu! Listen to me explain in detail. Our company wants to develop and manufacture EUV lithography machines. You are the talent I particularly need. Only when a genius like you joins my company can it be possible to create EUV , I very much hope you can come to work in our company, and I am making this call to you with utmost sincerity.”
Wei Ming said sincerely.
"I'm very grateful for your favor for me, but the unit I work for now is developing EUV, and private enterprises are generally impetuous, eager for quick success, and are not very stable. Although there are many companies like you that recruit me, I have no intention of changing jobs. Intend."
"I am different from other company bosses. I have long-term plans, full preparations, and more confidence in success! If you work with me, you will be able to maximize your talents and value, and you will definitely be able to realize your dream of creating EUV. "
"I have heard people say this. I appreciate this sentiment, but I still refuse."
"Not only do I have feelings, I also have money! What is your current salary in your research institute? Come to me and I will give you ten times the salary!"
"If your company fails, there is no point in doubling it a hundred times... There are still things to do, so hang up!"
Dududu~
There was a busy tone on the phone.
Wei Ming made several more calls, but was rejected by the other party. He was even unable to make calls and was blocked.
In the next two days, Wei Ming tried all kinds of ways and spent hundreds of thousands more on headhunting channels. First, he added his wife as a WeChat friend, sent tens of thousands of red envelopes, and asked his wife to help with a few words. After some good words and hard work, he finally added Pu Weicai's WeChat account. In the WeChat, Wei Ming expressed that he wanted to meet him and talk in person. If he disagreed, he would continue to pester him.
Pu Weicai really couldn't stand such harassment, so he had to say yes.
…
Arrive at Heshou City.
2pm.
A Simbac cafe near Science Island.
Wei Ming saw Pu Weicai sitting in the booth near the window.