Saturday, January 15.

Heyi City.

Wei Ming, who took the high-speed rail, came to this city.

For this reason, he deliberately asked Sister Fan for two days off, and treated more than 30 stone patients in advance, leaving a total of three days to solve a problem.

Talent!

R&D talents for high-end lithography machines.

Moreover, Wei Ming already has a clear recruitment goal, and he thinks that the most suitable and best talent is here in Hesan City.

This person's name is Pu Weicai.

Wei Ming was in the process of searching for relevant information on the Internet, and saw a number of news about this person.

I also noticed that the R&D team led by this person has achieved a number of research results related to lithography machines, and I have learned about this person's fork.

Because these days, Weiming is also vigorously learning some knowledge related to lithography machines, and has learned about several core technologies of EUV lithography machines.

One, assembled.

One of the most important techniques of a lithography machine is assembly, which is to assemble all the components together and then achieve the highest resolution and the best overlay accuracy.

For example, the change of the internal temperature of the machine should be controlled at 5 thousandths, and there must be a suitable cooling method and an accurate temperature measurement sensor. A lithography 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.

Lithography machines are the products with the highest precision requirements in the manufacturing industry. The principle of lithography is like carving nano-sized text on an area the size of a grain of rice, and the requirements for error can be imagined.

For example, in a lithography machine, there are two synchronously moving workpiece stages, one with a negative and one with a film. The two need to be synchronized at all times, with an error of less than 2 nanometers. The two workbenches are static to moving, and the acceleration is similar to that of a missile launch.

Third, the light source.

Extremely high levels of energy are required to manufacture EUV. EUV can be absorbed by air, so the lithography process must consume electricity to maintain a vacuum environment. What's even more exaggerated is that EUV can also be absorbed by lenses, so only a dozen surface lenses can be used to concentrate the light source through continuous reflection.

For every 1 reflection, 3% of the energy of EUV is lost. After a dozen reflections, only 2% of the light reaching the wafer is theoretically left. From the perspective of being able to catch up, a semiconductor company in Hanguo once said that the energy conversion efficiency of extreme ultraviolet EUV is only about 0.02%.

Fourth, the lens.

The lens in the center of the lithography machine is composed of more than 20 lenses with a large pot bottom in series, which requires high purity light transmission and high polishing.

At present, lenses that meet the requirements of lithography machines cannot be manufactured by machines, and advanced lithography machine lenses are all polished by hand, and there are not many companies that can meet this standard, and there are only one or two in the world, all of which are old Western companies.

These four categories of core technologies.

Wei Ming learned that this awesome Pu Weicai and his technical team have overcome two in just ten years.

They are duplex technology and light source technology.

He led the team to develop a high-precision duplex table, and the control accuracy has also reached 2 nanometers, which is the most advanced level in foreign countries, reaching the same advanced level, smoothing out the technical gap, and it can be said that it is 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 the leading position in the field of laser technology in China and the advantages of materials, and the final energy utilization rate reached 5%.

Compared to the 2% of Elsemed's EUV lithography machine, the energy efficiency has more than doubled!

This means that the lithography machine can save more than half of the electricity in the process of use, reduce the generation of a large amount of heat, and improve the stability of the system a lot.

That is to say, in the field of EUV lithography machine, Pu Weicai, a great man, and the technical team led by him, among the four core technologies, they have broken two.

The remaining two core technologies.

In terms of assembly technology, Modu Microelectronics has made a huge breakthrough in recent years, with the ability to combine more than 100,000 parts into a lithography machine and let it work stably for a long time.

Only the lens has not been broken through in China, because the lens used in the EUV lithography machine of ASMED is not made by machine, but by the engineers of the lens manufacturing company, who spent 20 years and hundreds of thousands of hours to carefully polish it, which is the product of the ultimate craftsmanship!

Huaguo wants to catch up, but it is almost impossible to find this kind of master craftsman who can patiently sit down and polish for decades, and can polish a lens to an object the size of a blue star, with a convex degree of only 1 millimeter at most.

However, Wei Ming said: The problem of the lens is left to him to solve.

Using Xiao Hei, not to mention polishing to the level of "blue star area and millimeter convexity", as long as the time is enough, it can be done at the nano level.

The lens can be solved by Wei Ming.

So the most important thing now is to recruit Pu Weicai, a great man, and pull him into his company.

However, cattle people are not something that you can recruit casually if you keep saying that you want to recruit.

Wei Mingshan wanted to get Pu Weicai's contact information, know his work unit and place of residence, and offered a reward of 1 million yuan in the headhunting market, only to get the other party's phone number and learn some specific information about him.

Before coming to Heshou City, Wei Ming made a solicitation call to him, but was categorically refused:

"Sorry, I have no plans to change jobs, please don't call again."

"Wait, Dr. Pu! Listen to me carefully, my company wants to develop and manufacture EUV lithography machine, you are the talent I particularly need, only a genius like you to join my company, it is possible to create EUV, I very much hope that you can come to work in my company, I am with 100,000 sincerity to call you. ”

Wei Ming said sincerely.

"I thank you for your favor to me, but the unit I work for now is in the research and development of EUV, and private enterprises are generally impetuous, eager for quick success, and not very stable, although there are many companies like you who recruit me, but I have no intention of changing jobs."

"I'm different from other company owners, I have a long-term plan, I'm well prepared, and I have the confidence to succeed! If you work with me, you will be able to give full play to your talent and value, and you will definitely be able to realize your dream of creating EUV. ”

"I've heard this say it, and I appreciate it, but I still refuse."

"I don't just have feelings, I also have money! What is your current salary in your institute? Come to me and I'll multiply it for you tenfold! ”

"If your company fails, there's no point in multiplying it a hundredfold...... There's still something to hang on! ”

Toot toot~

There was a busy tone on the phone.

Wei Ming dialed a few more calls, but they were all rejected by the other party, and he couldn't even get through, and he was blocked.

In the next two days, Wei Ming tried all kinds of methods, and threw hundreds of thousands of dollars into the headhunting channel, first added his wife's micro-chat friends, sent tens of thousands of red envelopes, and asked his wife to help say a few good words, and then under the soft grinding and hard bubbles, he finally added Pu Weicai's micro-chat number, in the micro-chat, Wei Ming said that he wanted to meet with him and talk face-to-face, if he didn't agree, he would keep entangled.

Pu Weicai really couldn't stand this kind of harassment, so he had to say yes.

……

Arrive in Hesan City.

2 p.m.

A Simbac café near Science Island.

Wei Ming saw Pu Weicai sitting in the window seat.