There's a black hole inside me

Saturday, January 15th.

Hop Hwan City.

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

For this reason, he specially asked Sister Fan for two days' leave and dealt with more than 30 stone patients in advance, freeing up a total of three days just to solve one problem.

Talent!

R\u0026D talents for high-end lithography machines.

Moreover, Wei Ming already has a clear recruitment target. He believes that the most suitable and outstanding talents are here in Heshou City.

This person's name is Pu Weicai.

Wei Ming saw many news about this person while searching for relevant information on the Internet.

I also noticed that the R\u0026D team led by this person has achieved multiple research results related to lithography machines, and I understood what this person is good at.

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

One, assembled.

One of the most important technologies of the lithography machine is assembly, which is to assemble all the components to achieve the highest resolution and optimal overlay accuracy.

For example, the change in the internal temperature of the machine must be controlled within five thousandths of a degree, which requires appropriate cooling methods and accurate temperature sensors. 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.

Two, control.

Photolithography machines are products 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 rice grain. You can imagine the error requirements.

For example, there are two synchronously moving workpiece stages in a lithography machine, one for carrying negatives and the other for carrying film. The two need to be synchronized at all times, with an error of less than 2 nanometers. The two worktables moved from static to dynamic, with an acceleration similar to that of a missile launch.

Three, light source.

Making EUV requires extremely high energy. EUV can be absorbed by air, so the photolithography process must consume power to maintain a vacuum environment. What’s even more exaggerated is that EUV can also be absorbed by lenses, so only a dozen or so lenses can be used to concentrate the light source through continuous reflection.

Every time it is reflected, 30% of EUV energy is lost. After more than a dozen reflections, theoretically only 2% of the light reaches the wafer. From the perspective of continuous improvement, a semiconductor company in the cold 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 connected in series and requires high purity of light transmission and high polishing.

At present, lenses that meet the requirements of photolithography machines cannot be manufactured by machines. Advanced photolithography machine lenses are all polished by hand. There are not many companies that can meet this standard. There are only one or two in the world, and all of them are Established Western companies.

Among the core technologies of these four categories.

Wei Ming learned that Pu Weicai and his technical team had achieved two achievements in just ten years.

They are duplex table technology and light source technology.

The high-precision duplex table he led the team to develop has a control accuracy of 2 nanometers, which is as advanced as the most advanced foreign countries. It has bridged the technical gap and can be said to be tied.

In terms of light source technology, it only took Pu Weicai 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. The final energy utilization rate reached 5%.

Compared with the 2% of ASMED EUV lithography machine, the energy utilization rate has more than doubled!

This means that the photolithography machine can save more than half of the electricity during use, reduce the amount of heat generated, and improve the stability of the system a lot.

In other words, in the field of EUV lithography machines, Pu Weicai, an outstanding person, and the technical team he led, they 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 assemble more than 100,000 parts into a photolithography machine and make it work stably for a long time.

Only in the field of lenses, the country has yet to make a breakthrough, because the lenses used by ASMED's EUV lithography machines are not manufactured by machines, but by engineers of the lens manufacturing company who spent 20 years and several years. It took 100,000 hours of careful polishing and is the product of the ultimate craftsman spirit!

China wants to catch up, but it can hardly find such master craftsmen who can sit down and polish it patiently for decades. They can polish a lens to an object the size of a blue star, with a protrusion of only 1 mm at most. .

However, Wei Ming said: Just leave it to him to solve the camera problems.

With Xiaohei, let alone polishing to the "blue star area, millimeter bulge" level, as long as there is enough time, it can be done even to the nanometer level.

As for the lens, just leave it to Wei Ming.

So the most important thing now is to recruit Pu Weicai, an outstanding person, into his company.

However, great people cannot be recruited just by saying you want to recruit them.

In order to get Pu Weicai's contact information and know his workplace and residence, Wei Mingshan offered a reward of 1 million in the headhunting market, and then he got the other party's phone number and learned some specific information about him.

Before coming to Heshou Market, Wei Ming gave him a recruitment call, but he 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 collapses, there's 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.