Su Xinghe and Zhang Ke laughed. Both of them were accustomed to treating Su Yuanshan as an old adult, and when they saw Su Yuanshan's rare excitement at this time, they all had a feeling that this was their son and nephew.

The brother-in-law stretched out his voice, like an old cadre with mud: "Young man, don't be so anxious, this is the New Year." ”

"Your brother-in-law is right, it's the New Year. Su Xinghe looked at his son and said with a smile: "I will wait for the New Year to talk about big things - and you see, there is no news on TV now." ”

Su Yuanshan shook his head with a smile and sat down, he also knew that he was too excited just now. But he was excited for a reason, because he knew that the spring breeze would blow and would say, "Be bolder, step faster." Since this foresight, it is really unreasonable not to do something.

At this time, there was a knock on the door, and after opening the door, I saw Professor Li Gaoliang holding two bottles of wine in his hands, and a middle-aged man of about the same age stood behind him.

Su Yuanshan was stunned by this posture - Li Gaoliang lived upstairs, and it was not uncommon for him to come to the door, but it was rare for him to bring two bottles of wine. He's my father's head of department!

"What?, Xiao Su, don't let Uncle Li enter the door?" Li Gaoliang saw that Su Yuanshan was a little confused, and quipped.

"No, no, Uncle Li, what do you mean by this wine? My house is not a sales shop. Su Yuanshan hurriedly opened the door, turned around and shouted, "Dad, Uncle Li is here." ”

Su Xinghe had already heard the voice, walked quickly to the door, and greeted the two of them in with a haha.

......

After introducing his identity and greeting him for a while, Su Yuanshan moved a stool and sat next to his uncle, with an irrepressible smile on his face - not polite, but genuine.

Zheng Zhenchuan, deputy leader of the optomechanical project team of the Institute of Optoelectronic Technology of the Chinese Academy of Sciences, is also a classmate of Li Gaoliang.

The wine was naturally brought up by Zheng Zhenchuan.

The aunt came out of the kitchen, made tea for the guests, and brought the little girl into the kitchen, leaving the living room for the men.

"Lao Su, the two of us are welcome. My old classmate's project is now in some difficulty, you can see how Yuanxin can help. Li Gaoliang touched his head, said to Su Xinghe, and looked at Su Yuanshan at the end.

He knew that Yuanxin was actually in charge of Su Yuanshan's ghost cleverness.

Su Xinghe smiled and nodded: "Well, Zheng Gong, please speak." ”

"Well, we have been doing the imitation and research and development of lithography machines here in the Institute of Optics and Mechanics. The problem now is that we are okay with the light source and other hardware, but it is very difficult for the embedded system. Zheng Zhenchuan has been in the Provincial Institute of Optics and Mechanics for many years, and he has long learned a Sichuan accent, shook his head, and said with a wry smile: "Now looking at China, Professor Su's Yuanxin has the ability to develop an embedded system suitable for lithography machines, so I will worship the Bodhisattva." ”

"Haha, what did Zheng Gong say. Su Xinghe praised him with a haha, and he turned his head to look at his son: "Xiaoshan, can you still draw a team over there?"

Su Yuanshan pursed his lips and smiled.

"Since Uncle Zheng has spoken, we have to help even if we stop EDA!"

Everyone burst into laughter, Zheng Zhenchuan looked back at his old classmates, and was immediately relieved when he saw Li Gaoliang fixed his head - when he was at home, Li Gaoliang told himself that Yuanxin Company was actually in charge of Su Xinghe's son, and this child was a genius who was really famous in Silicon Valley.

Next, Su Yuanshan briefly asked Zheng Zhenchuan a few questions about the lithography machine, which made Zheng Zhenchuan also impressed with him.

After agreeing to detail various details after the New Year, Li Gaoliang and Zheng Zhenchuan got up to say goodbye and refused to stay for dinner.

Closing the door, Su Yuanshan high-fived excitedly again.

"Dad, do you know what it means to have someone give you a pillow if you want to sleep?

Su Yuanshan laughed as he spoke, and jumped into the sofa.

Domestic lithography machines, or optical precision machinery, actually started not late. As early as the 50s, the Changchun Institute of Optics and Mechanical Engineering of the Chinese Academy of Sciences was established, and then in the sixties and seventies, the Changguang Institute was built in Xijing, SH, and the provincial capitals of Xiguang, Shangguang, and Chengguang.

Since they are blooming everywhere, the direction of their focus is naturally different. As the grandfather generation, the Changguang Institute dominated the overall situation, the Xiguang Institute mainly researched space optics, optoelectronic engineering and other fields; the Shangguang Institute mainly focused on the fields of intense laser, information optics, photonic materials, etc.; and the Chengguang Institute, that is, the provincial institute of optics and mechanics, put forward the main direction of the future as early as the 70s is the research project of optical measurement equipment and large-scale integrated circuit equipment. (Omit Ankosho here)

But Su Yuanshan knew that these research directions of the Chengguang Institute had failed.

It is now the beginning of 92, and Chengguang Institute will launch the first G-line lithography machine, which is known as one of the top ten scientific and technological achievements of electronics, next year - 1.5-2 micron step-by-step repeated projection lithography machine. However, because the yield rate is so low, it can only be used as a prototype......

Later, Chengguang Institute made persistent efforts and developed a 0.8-1 micron distributed projection lithography machine, and claimed to be the only self-developed lithography machine that has made components.

Listen to the wording, the "made" component - the sadness is full of stubbornness.

Since then, the domestic lithography machine has been a hundred years old when it looks back.

As a practitioner in related industries, Su Yuanshan certainly knows the history of domestic lithography machines. In fact, the one that Chengguang is engaged in is a 2-micron lithography machine imitating NEC, but the hardware can be copied, and the embedded system has no choice. In particular, all kinds of fine-tuning require the blessing of both system and experience.

Su Yuanshan's plan this year is to take advantage of the same provincial capital to pull this wave of people in Chengguang to eat a wave of experience. Before he could figure out how to find an excuse to cooperate, he came to the door from the other side, didn't he want to sleep and someone sent a pillow What is it?

......

Seeing that Su Yuanshan was excited, his father calmed down instead: "Don't be too happy, the lithography machine has a total of tens of thousands of parts, which are extremely precision instruments." To develop an embedded system, it is necessary to have a certain understanding of the system and structure. Do we have such people?"

"Of course we don't, but we can learn from each other. Su Yuanshan said with a smile: "And the lithography machine is complicated, in fact, the most difficult thing to do in the embedded system is mainly in the alignment system, and the details are the cooperation of motors such as stepper motors, torque motors, and servo motors......

Speaking of this, Su Yuanshan suddenly stopped.

Zhang Ke, who was listening with relish, was stunned: "Why don't you say it?"

Su Yuanshan sighed softly: "Because these motors don't seem to be domestic." ”

In fact, the domestic laser light source has not lagged behind, and even the application in some fields is still leading. However, the lithography machine, a high-precision machine that combines various top technologies, is the most affected by the barrel effect.

"Imports are enough, but the cost is high. The uncle said disapprerovingly.

Su Yuanshan smiled and squinted his eyes to look out the window, there was a cold winter outside the window.

"Yes, but what if people don't sell it?" asked Su Yuanshan softly.