Chapter 447: There was a sudden knock on the door
At this moment, the white-haired old man suddenly remembered something and asked:
"Don't implement this plan right away. Since Xu You was able to communicate with Mr. SPY about technical issues today, it proves that his brain is not that seriously damaged. It won't be too late to implement the plan after a while when there is confirmed news."
"Okay, sir. According to the results of our previous experiments, this kind of lesion is irreversible and will continue to worsen. Mr. SPY will continue to provide us with information. If Xu You can't even see Mr. SPY, it really means that he has lost the ability to think."
"Well, it's best to be fully prepared. In addition to Xu You, we also need to observe the performance of the people around him, especially his girlfriend."
"Understood. We will continue to pay attention."
…
Quantum Computing Laboratory.
Xu Youzheng is using the function of wireless brain-computer to form a connection channel with the mathematical quantum computer.
Since Huang Sibai returned to China and joined Fulun Technology, he has contributed more than ten EUV lithography machine-related technologies to the company.
These technologies, including the EUV lithography machine's laser light source, workbench, lens, etc., each achievement is a real key technology, and it is a very significant progress for domestic EUV lithography machines.
However, because a lithography machine involves so many components and requires the cooperation of many companies in the industrial chain, it can only be mass-produced.
In the short term, it is not possible to make a real EUV lithography machine.
As a scientific research expert in multiple fields, Xu You naturally understands this truth.
But if we could allow computing artificial intelligence to master this knowledge, the situation would be completely different.
Through the function of wireless brain-computer, Xu You transferred all his knowledge to Suanjing and made Suanjing understand the meaning of the lithography machine.
Under such circumstances, Xu You continued to use his brain simulation skills, using the powerful computing power of the arithmetic to constantly simulate the operation process of the lithography machine in his mind and optimize the details of each component.
At this moment, tens of thousands of components of a lithography machine were clearly visible in Xu You's brain.
"There is indeed nothing wrong with the techniques Huang Sibai told me about."
Through rigorous simulation, Xu You confirmed the authenticity of Huang Sibai's techniques.
In order to gain Xu You's trust, Huang Sibai did not hide anything from Xu You and told him everything he knew.
From Huang Sibai's narration, Xu You could tell that these technologies were not actually developed by Huang Sibai himself, but more like they were obtained by Huang Sibai from certain channels.
But for Xu You, this information was enough.
In deep thinking, Xu You can infer more useful information based on the information provided by Huang Sibai.
After continuous simulation, calculation and deduction, Xu You is getting closer and closer to a complete set of EUV lithography technology.
The multiple processes including surface cleaning and drying of silicon wafers, primer coating, spinning photoresist, soft baking, alignment exposure, post-baking, development, hard baking, etching, testing, etc. were constantly replayed in Xu You's mind.
After countless simulations, Xu You still failed to successfully produce qualified high-precision chips based on the EUV lithography machine simulated in his brain.
"No... the technology of EUV light source has not been well solved yet."
In the EUV lithography machine, the EUV light source is undoubtedly the most core equipment.
In order for the lithography machine to work efficiently, a sufficiently bright EUV light source is required.
In terms of EUV light source, Huang Sibai provided some technologies, but did not completely solve the problem.
"Wait a minute... the spectrum of extreme ultraviolet radiation seems to have room for further optimization!"
At this moment, Xu You suddenly noticed.
At the normal best focusing position of the laser, there is a lack of effective coupling between the incident laser energy and the plasma.
The reason for this is that at the optimal focusing position, the focused spot size is small and the laser focusing cone angle is also small. The energy absorbed by the plasma will be confined near the central axis, affecting the plasma's absorption of laser energy.
In other words, the so-called "best laser focusing position" is probably not the position where the EUV spectrum intensity is the strongest.
"If you adjust the size of the focused spot... things will be different."
According to Xu You's theory, when the focused spot size increases slightly, the laser focusing cone angle will also increase.
In this way, the laser energy will be effectively distributed throughout the front of the plasma, and the plasma can effectively absorb the laser energy and reduce energy loss.
Of course, the focused spot size cannot be increased too much, otherwise it will have the opposite effect.
However, although Xu You had these inferences, it was difficult to find the optimal focus spot size within a limited time relying solely on his own computing power.
Fortunately, Xu You can rely on the powerful computing power of Suanjing to greatly improve his calculation speed.
After many calculations, Xu You finally found the location where the EUV spectrum intensity was the strongest.
After replacing the new EUV light source device, Xu You re-deduced the workflow of the lithography machine.
Just as Xu You expected, when the brightness of the light source was greatly increased, the working efficiency of the lithography machine also improved a lot.
"If it can work at this efficiency, then this EUV lithography machine may really be put into use!"
After finalizing the design of the lithography machine, Xu You still needs to summarize the specific processes of each component.
Because we want to manufacture such a sophisticated instrument like a photolithography machine.
It is far from enough to rely solely on design drawings.
If there is no specific process, even if you get the design drawings, it does not mean that the entire lithography machine can be manufactured.
Xu You didn't have time to rest and continued to work with Suanjing on the next task.
…
In Xu You's laboratory, Lin Shi was anxiously asking Cui Ying something.
"Teacher Cui, why didn't Teacher Xu come to the lab today? Do we need to go see him?"
"No need. Teacher Xu may be a little tired recently and needs to rest for a while. He will not be in the laboratory for the time being. Lin Shi, even if Teacher Xu is not here, you have to take the lead and continue the research work on several projects."
"Okay, Mr. Cui, I understand."
Lin Shi was still vaguely worried about Xu You, but since Cui Ying said so, Lin Shi didn't dare to ask any more questions.
When Xu You is not around, Lin Shi should take on the responsibility and continue Xu You's unfinished scientific research project.
At this moment, there was a knock on the laboratory door.
