"When things are bought, how to use them is still restricted, Chiguoguo's imperialism. Hang Yu listened to the introduction of the staff of Ruisi, and couldn't help but feel a little angry, the little Holland is so arrogant.

This is equivalent to saying that we bought a washing machine from abroad and came back, obviously we can wash any clothes, but it insists that you can't wash domestic brand clothes, only foreign brand clothes.

If this set of equipment cannot complete independent research and development, and the process reaches the world's advanced level, even if we independently design the chip, we cannot complete mass production, and can only ask others to help.

The current lithography machine technology is too backward, and it will take ten or eight years to catch up with the world's advanced level. It is difficult to make a profit in ten or eight years, and you have to keep investing money, which is something that only the state and large groups can do.

In fact, Hang Yu hesitated for a long time before investing in Ress Technology, because it was a big burden for the company. If Jiang Yan Company does nothing else and invests in a Ruisi, it is nothing.

The problem is that Jiang Yan has also invested in many other products, some of which are effective in the short term and some in the long term.

"When have foreigners ever reasoned with us, and if they want to get out of this situation, they can only rely on themselves. Lu Jianchuan said, he is a technician of Ruisi, leading Hang Yu to understand the company.

"How many lithography machines can you produce now?" asked Hang Yu.

“200。 Lu Jianchuan was not embarrassed, and his answer was very brief.

Hang Yu no longer asked, 200 nanometers is too far from the world's advanced level, and everyone uses 45 nanometers. And Hang Yu also knows that the Dutch will soon reduce this number to less than 20, which is simply terrifying.

"There are too many funds needed to develop lithography machines, although there is the participation of Jiangyan Company, but it is still stretched, and many research works are not guaranteed, I hope that Mr. Hang can increase support. Lu Jianchuan said.

"I also think that the annual investment of 500 million yuan has also caused a lot of burden on our company. Hang Yu said.

"As far as I know, your company's annual income can be calculated in tens of billions, and investing hundreds of millions more every year is a great help to our work. As long as the accuracy of the lithography machine is improved by two more levels, we can make a profit. Lu Jianchuan said.

"It's not as simple as you think, if you have a hundred dollars, spend a few dollars here and there, and buy a few things a year. What's more, we have to save some money in our pockets in case we need them, so our funds are actually very tight. Hang Yu said.

His metaphor is very simple, and as soon as Lu Jianchuan heard it, he stopped mentioning it.

Of course, 500 million yuan a year is not enough, most of it is from the state, and Hangyu's investment can only be regarded as icing on the cake. Hang Yu himself felt that it was a little less, so he said: "If the company's benefits are good, I will consider your suggestions as appropriate." ”

Lu Jianchuan smiled and said, "Thank you Mr. Hang for your support." ”

Hang Yu suddenly felt quite funny, he was obviously so rich, but he felt that it was not enough.

"Can you tell me about the key to the technology of the lithography machine?" Although Hang Yu does not understand technology, he is very interested in science and technology.

"Of course you can, as long as Mr. Hang doesn't think I'm cumbersome. Lu Jianchuan weighed it, how to satisfy Hang Yu's kindness, too professional will definitely not work.

"You say. Hang Yu said.

"Lithography machine is one of the core equipment of chip manufacturing, which can be divided into several types according to its use. There are lithography machines for the production of chips, lithography machines for packaging, and projection lithography machines for LED manufacturing. Lu Jianchuan introduced.

The lithography machine used to produce chips is the biggest shortcoming of the country's semiconductor equipment manufacturing, and the high-end lithography machine required by domestic wafer factories is completely dependent on imports, and there are many restrictions on its use.

"There are many components of the lithography machine, which are the measuring table and the exposure table that carry the silicon wafer, and the laser is the light source, one of the core equipment of the lithography machine. Beam corrector, which corrects the direction of incidence of the beam so that the laser beams are as parallel as possible. The energy controller, which controls the amount of energy that ultimately hits the silicon wafer, underexposure or overexposure can seriously affect the image quality. Lu Jianchuan said.

There is also a beam shape setting, which sets the beam to be a circle, a ring and other different shapes, and different beam states have different optical characteristics.

A light shield that prevents the beam from reaching the silicon wafer when exposure is not needed.

The energy detector detects whether the final incident energy of the beam meets the exposure requirements, and feeds back to the energy controller for adjustment.

The reticle, a glass plate with a wiring plan engraved on the inside, can cost hundreds of thousands of dollars. The mask table, the equipment that carries the movement of the reticle, the motion control accuracy is nanometer.

Objective lenses, which are used to compensate for optical errors and reduce the size of circuit diagrams, etc.

A silicon wafer, a wafer made of silicon crystals. Wafers come in a variety of sizes, and the larger the size, the higher the yield. Since the silicon wafer is round, it is necessary to cut a notch on the silicon wafer to confirm the coordinate system of the silicon wafer, which is divided into two types according to the shape of the notch, which are called flat and notch.

.........

"In the process of processing the chip, the lithography machine transmits the beam through a series of light source energy and shape control means, passes the beam through the mask with the circuit diagram, compensates for various optical errors through the objective lens, reduces the circuit diagram into an example, maps it to the silicon wafer, and then uses chemical methods to develop the circuit diagram engraved on the silicon wafer. ”

"The general lithography process needs to go through the silicon wafer surface cleaning and drying, priming, spin coating photoresist, soft drying, alignment exposure, post-baking, development, hard drying, laser etching and other processes. After a photolithography, the chip can continue to be glued and exposed. The more complex the chip, the more layers of the circuit diagram and the more sophisticated the exposure control process is required. ”

Lu Jianchuan has tried his best to introduce it in a simple way, but after talking so much at once, Hang Yu is still difficult to digest for a while. However, he felt more deeply the difficulty of developing lithography machines.

It turned out that I also knew that this kind of equipment was difficult to do, but the concept was vague, and I didn't know that there were so many components.

"Today's cutting-edge equipment is becoming more and more complex, and it is conceivable that the number of cutting-edge technicians required in the future will also increase exponentially. It is said that our demographic dividend is almost gone, but I feel that more people will always be beneficial. Hang Yu suddenly had a feeling.

"Judging from the current quality of the population, our demographic dividend is indeed getting smaller and smaller. Whether or not we can give full play to the numerical advantage in the future depends on the effect of education, and I hope that the overall quality of the next generation will be improved. Lu Jianchuan said.

With the development of science and technology, the more high-end products, the higher and higher the requirements for the system.

To give you a simple example, if you have a spaceship in the future, how big and complex will that thing be? How can you do it without enough people and enough researchers, and small countries can't even think about it.

It is estimated that with the size of our population, it is difficult to achieve that level.