Siheyuan starts from a better life

Chapter 736, Lithography Machine
Captain Li pondered for a long time and fell into a dilemma. He understood the importance of computers very well, but obtaining these scarce materials seemed beyond his capabilities.

Finally, he thought of a way: "Xiao Jiang, since the materials are so scarce, I need to report to my superiors and get instructions."

After that, Captain Li asked his secretary to take Jiang Yan to the reception room to wait, while he went to the encrypted phone and dialed Ouchi's switchboard number.

"Hello? I want to report an important matter to my husband."

After the call was connected, Captain Li briefly reported to Mr. Li on the development of the third-generation computer and the difficulties in obtaining materials.

After listening, the teacher pondered for a moment, and then said firmly: "The third generation computer is related to the long-term development of the country, and the short-term difficulty in obtaining materials should not be an obstacle. Captain Li must fully support Comrade Jiang Yan's work, and I will try my best to coordinate and resolve all needs." , and even purchase from abroad. Ask him to ask for anything he needs directly, no excuses!"

Captain Li was overjoyed after hearing this and repeatedly expressed to Mr. Li that he would fully support this work.

After hanging up the phone, Captain Li's mood suddenly became clear.

With the clear instructions from my husband, the problem of purchasing materials was finally settled.

He immediately came to the reception room and said to Jiang Yan: "I reported the material problem to my husband. He fully supported this work and promised to make every effort to solve the material problem so that the development of the third generation computer can proceed as scheduled. I have learned a lot. , with the strong support of the organization, we will definitely achieve success!”

With the strong support of superiors, the development of the third-generation computer is proceeding smoothly and is just around the corner!
Jiang Yan expressed his gratitude repeatedly.

The most important thing for Jiang Yan now is to get the photolithography machine.

He looked at the signatures with his hands clasped and his eyes firm.

The materials used in integrated circuits mainly include: silicon, silicon germanium, gallium arsenide, silicon carbide, indium phosphide, etc.

The first thing Jiang Yan needs to solve is the problem of integrated circuits.

After discussing with their superiors, the superiors decided to give Jiang Yan and their research institute a place, and set up a factory in Jiang Yan and his research institute, specifically for the research and production of lithography machines, and the relevant personnel were allocated by their superiors.

An integrated circuit is a miniature electronic device or component. Using a certain process, the transistors, diodes, resistors, capacitors, inductors and other components and wiring required in a circuit are interconnected, made on a small or several small semiconductor wafers or dielectric substrates, and then packaged in a tube Inside the shell, it becomes a microstructure with the required circuit functions; all the components are structurally integrated, making electronic components a big step towards miniaturization, low power consumption and high reliability.

After an afternoon of lobbying, all leaders expressed their great importance and support for this project.

The entire integrated circuit requires large-scale pure monocrystalline silicon. Monocrystalline silicon was successfully researched by 59 domestic institutes in 46. Jiang Yan wanted to be here and directly called Wang Honghai and asked his secretary to Gong took the specific parameters of the monocrystalline silicon he needed and asked him to contact 46 Research Institute.

Yes, with strong support from the national level, it will be much easier to do this!
I returned to the research institute, sat in my office, and started my own plan to build a third-generation computer.

Subsequently, they launched multi-party coordination, preparing to concentrate national production capacity, uniformly allocate resources, establish a "128" engineering project team, and go all out to invest in the development of third-generation computers.

Jiang Yan was also very happy to receive this good news.

In the afternoon of that day, Jiang Yan returned to the institute with documents and letters of support from all parties.

Of course, the confidentiality level of Jiang Yan's research institute has also been raised by one level. The security of the institute will be taken over by the army and the security office of the institute. The security office will also accept veterans and conduct identity assessments in the future.

A few days later, a large number of researchers and engineers have been assigned to Jiang Yan's research institute, and worker recruitment has also begun slowly. Since this factory produces high-tech things, the quality requirements for workers are relatively high. After Jiang Yan After communicating with his superiors, it was decided that the minimum requirement for workers in the photolithography machine and the workshop that produces integrated circuits must be high school students.

Compared with this era, high school students of this era are no less than undergraduates of Jiang Yan's era. So Jiang Yan's requirements are quite high. Jiang Yan is not worried about the project. There are dedicated people there to keep an eye on it. The most important thing for Jiang Yan right now is to educate these technicians. Due to the need for confidentiality, they did not have a clear introduction when they were transferred here, which resulted in many problems after their arrival. The technical staff are quite confused.

At ten o'clock sharp, the conference room was filled with dozens of engineers and technicians.

Jiang Yan walked up to the podium and announced to everyone: "Comrades, our steel rolling mill is going to start a new research and development project next, and that is - a photolithography machine!"

"Lithography?"

"What is this?"

Everyone looked at each other, confused.

The expressions of the three old professors changed slightly, and they looked puzzled.

After a few seconds of silence, Professor Wang, one of the old professors, stepped forward and said: "Comrade Jiang Yan, the photolithography machine is probably too complicated for us. I wonder if we can change the subject?" The other two professors They also all agreed.

Only the three professors knew about such advanced things as photolithography machines.

Most of the other engineers and technicians present had no idea what this was. And the complexity of this thing is thousands of times more complicated than CNC machine tools. Involving all aspects of the field. Just relying on their staff here to make it possible is tantamount to wishful thinking.

Jiang Yan smiled slightly and said calmly: "I understand your doubts. The lithography machine is indeed very complicated, but as long as we work together, we will succeed."

Then he began to briefly explain to everyone the working principle of the lithography machine.

First, a brief introduction is given to the role of the photolithography machine, which is to print design patterns onto silicon wafers with high precision. This is a key equipment for manufacturing integrated circuits. But when it comes to the specific principles, everyone is confused.

Jiang Yan saw everyone's confusion, so he changed his approach and started with the role of the silicon wafer: "Everyone knows that the circuit board is wrapped with various wires and components, which is very complicated. The silicon wafer is like a small circuit board , with extremely fine circuits imprinted on it.”

Everyone nodded to express their understanding. This metaphor allowed them to intuitively understand the role of silicon chips.

"But it is very difficult to print complex circuits on such a small silicon wafer." Jiang Yan continued, "This requires the use of a photolithography machine. There is a special light source in the photolithography machine, which can design circuit patterns with light. The pattern is irradiated onto the silicon wafer, just like taking a photo, and the pattern is 'frozen' on the silicon wafer. In this way, complex circuits are 'printed' on the small silicon wafer."

Everyone was stunned for a moment when they heard this, still not quite understanding the principle.

At this time, Jiang Yan had an idea and thought of a vivid example: "Everyone knows about stamping, right? You can also leave a pattern by stamping it on paper.

The principle of a photolithography machine is actually a bit like this, except that it uses light instead of ink.

We make the designed circuit layout into a light source board, just like a seal, and then shine this 'light seal' on the silicon wafer to leave a pattern. Do you understand the principle?"

"Oh~"

"I see!"

After hearing this easy-to-understand example, everyone finally realized that this is how the photolithography machine works.

(End of this chapter)