Immersion system sounds like a common term that can no longer be common, but it is a new term in lithography system. You can think of it as simple, but it will take a long time to figure out the system.

This immersion system is not so easy to study. It involves a series of problems, such as control, bubble removal, liquid selection and so on. Deionized water is only the simplest one.

When peers began to study what is the immersion system, a new round of research by Chongshi Research Institute was carried out in full swing, all aimed at the wavelength of about 50nm.

This is not a simple upgrade, and some epoch-making achievements may appear.

At the final meeting of this project discussion, in the face of 37 project leaders, long Jianhua proposed, "in terms of chip production, our lithography and etching have been at the top level in the world. Even so, in the lithography process, the processes such as cleaning and drying, priming, spin coating photoresist, soft drying, alignment exposure, post drying, development and hard drying on the silicon wafer surface can only be regarded as the general level, and some even lag behind their peers; In other processes, only the packaging process is among the best in the world. "

"Some people say that I overestimate my strength and want to develop all the chip production equipment myself to resist the whole world. We need to know that our research institute is world-class. For such a large research institute, there are more than 10000 talents in semiconductor research. Other countries in the world are only studying this number. Why can''t we resist the whole world? "

"This breakthrough is a good opportunity for us to surpass or catch up with our peers. We now have 157nm and have encountered many problems. This is our foresight and advantage. When everyone hesitated, we had a clear direction and worked hard to catch up. Catch up with them and surpass them. "

According to the negotiation between the semiconductor business division and the sales head office, such lithography machines will not be sold within two years, so as to maintain their advantages for a period of time; Although 157nm is only a transitional idea, this idea was developed by Chongshi Research Institute, and the technical circuit has not been published. In addition, a large number of patents have been declared. It will take at least two years for others to develop such a lithography machine.

In two years, we can do a lot of things, and there may even be 50nm chips.

For the chip production equipment, long Jianhua only "knows" some nodes, such as the immersion system. For example, the next step is 50nm... To his dismay, after testing 157nm, others Junyan immediately asserted that the next step is this number.

A layman is a layman, and a real expert is a real expert. Rote is always inferior to others'' understanding and reasoning

There are 157nm chips to strengthen the waist. Chongshi group announced the upgrading of household electrical appliances, which has a higher degree of automation and easier to use, causing great tension among various peers.

Some are old customers of Chongshi chips, who immediately place orders for such chips in order not to be left behind by Chongshi; This list was immediately accepted by rebirth. This kind of order is something that can be solved by increasing the number of equipment. The more the better.

Some sent orders for this kind of equipment. The reply to such an order is that it will take two years before delivery. I should give priority to the use and make a time difference. In case of being secretly studied by my peers, it would be very bad to pierce that layer of paper. I should let them endure the torture of that layer of paper

After the meeting, before he came to the office, Professor Wen Hanru came up from the stairs and said with a smile, "Professor long, it seems that I''m lucky to meet you as soon as I come."

He took two tight steps, came forward, took his hand and said, "Professor Wen, why did you come here in person? If you have anything to say, I''ll just go. "

Professor Wen Hanru was the first person to study lithography in Chongshi Research Institute.

The first batch of people of Chongshi Research Institute were from Hong Kong Island Chinese University, including Professor Wen Hanru, Professor Yu Nuowei, and four associate professors: Bai Dongxi, Meng Fuxing, Zhang Kelan and Peng Xinfei.

There are only three teams. Professor Wen Hanru studies lithography, Professor Yu Nuowei studies wafers, and four associate professors of Bai Dongxi study software.

Ten years ago, Professor Wen Hanru and Professor Yu Nuowei withdrew from the corresponding research institute because they were more than 70 years old and couldn''t keep up with their energy and physical strength. They concentrated on taking classes in the University. Later, they stopped taking classes and went home to enjoy their days.

In fact, long Jianhua knew what they thought at that time. They both resigned because their thinking was not as active as others and they felt that they had had some difficulty.

Long Jianhua thanked them very much. If they don''t resign, he will never take the initiative to ask them to leave. They have made great contributions to the rebirth Institute.

At that time, long Jianhua didn''t know a few people outside. He mainly focused on the development of the group and making money; The arrival of the six of them not only brought many researchers to the Research Institute, but also exceeded his expectations, which made him very satisfied.

Based on this gratitude, he raised their annual salary again and again. When they left, their annual salary reached $600000. They have the salary of Chinese University, received such a sum of money here, and the dividend of the project, and quickly entered the list of rich people in xiangdao.

On his way to the office, long Jianhua joked, "Professor Wen, retired at home, his mental state is getting better and better. It seems that the joy of family can make people rejuvenate. "

Wen Hanru said with a smile, "that''s true. People are in good spirits at happy events. As long as their mentality is good, they won''t get sick. Now I occasionally take private jobs and design some equipment for some enterprises. Not to make money, just use your brain to prevent Alzheimer''s disease. "

Long Jianhua laughed, "this method is good."

Ask him to sit down on the sofa and ask, "what gust of wind brought you today?"

Professor Wen laughed and said, "I''m more than 70 kilograms. I can''t hang in the general wind."

After two jokes, he said with a smile, "I''m watching the news. I said that the lithography machine in our research institute has made a historic breakthrough. Now my peers are trembling, so I want to have a look."

These words aroused the vigilance of long Jianhua. He left the Institute for twelve years and retired for five years. He never came, but he came today.

However, he said with an unchanged expression, "it''s not a big breakthrough. It''s just that we pierced the layer of paper in advance. If there is a peer brainstorming, maybe it can be pierced immediately and be on the same starting line with us immediately. Therefore, we are very vague in both press conferences and customer publicity. "

Wen Hanru said with a smile, "I''ve been studying the lithography machine for so long and have been trapped in 193nm. I just want to see the equipment after the breakthrough and meet the curiosity of my old lithography machine."

Long Jianhua laughed, "to tell you the truth, I haven''t seen the assembly process so far. You know, it''s confidential. Some things are easy to spread out, so it has been classified as a confidential place. If you want to see it, you need to wait for decryption. "

No matter what happens, he won''t be allowed to see it, because he didn''t see it himself. Only researchers and relevant production system personnel can see the appearance of the equipment; Only a dozen people from the Institute can see the parts and assembly drawings.

Long Jianhua said it so clearly that Wen Han could not force it. He had worked here and knew he couldn''t force it. No one''s face will be seen in front of the rules and regulations.

As a boss, long Jianhua insists and plays an exemplary role. What else can he say?

For long Jianhua, this is a system without exception.