Spark

Chapter 110 The TR module is done, is it a koi again? ?

On the other side, Chang'an.

Just when May was forced to shrink due to the collapse of the soybean market, Huaxia made important progress in the research and development of digital array radar.

With the joint efforts of multiple departments and dozens of enterprises, Huaxia's first fully self-produced diffusion furnace was finally born.

After testing, the performance is almost the same as that of foreign models of the same period, or even better.

Moreover, the single crystal furnace project of Northwest Electromechanical Institute has also made a major breakthrough, and it will only be a matter of time before the trial production is successful.

In other words, in terms of semiconductor raw materials, Huaxia will no longer be controlled by others, and the obstacles to large-scale production of T/R modules and large-scale development of radar technology have been removed.

Everyone was rejoicing, but Chen Nian was frowning.

There is only one reason:

This is too fast!

In less than three months, you have solved all the pre-issues, so what should I do?

I haven't saved enough sources, and the digital array radar technology hasn't been analyzed yet!

Now he only has 2.32 source points, which is 1.68 points away from the analysis goal.

Although it depends on time, it can be done after two months, but the research and development is slower than the manufacturing, and Chen Nian always feels that something is wrong.

Therefore, after receiving the news about the single crystal furnace, he immediately increased the intensity of his studies, and in just two weeks, he completed the course on semiconductor silicon materials that was planned to be completed within one month.

This intensity scared Mo Zhongmin enough, he stopped in class more than once and wanted to drive Chen Nian back to rest, for fear that he would die suddenly in the classroom.

The main reason is that Chen Nian's dark circles under his eyes are too scary.

However, Chen Nian didn't feel how tired he was.

The main reason is that every time a new knowledge point is learned, the number of source points on the system will jump.

Even if it was only a 0.01 jump, it clearly showed his progress.

This feeling is really overwhelming.

It wasn't until two weeks passed and all the courses were finished that Chen Nian finally resumed his normal routine.

At this time, the number of his source points has reached 3.6.

Only a little bit away from the last, the unlocking of the digital array radar technology can be completed.

At this time, the single crystal furnace has just been built.

That is to say, Chen Nian insisted on chasing the progress back by relying on his own life-threatening hard work

Although no one knew what he had done, this incomparable sense of accomplishment still kept him excited for a long time.

For a moment, he even felt like Superman.

But where to get the remaining 0.4 source points, he really has no idea.

No. 22 project has not generated new source points for a long time, and the income of about 0.1 source points per day has not been received for a long time

This situation indicates that the initial batch of technologies that are most susceptible to fission effects have all been derived.

And a bigger breakthrough will take longer, and it is impossible to count on it in the short term.

For a moment, Chen Nian became embarrassed.

If not, let’s continue studying materials. After learning the basics of silicon materials, there is still a lot to learn about the advanced version of the subdivided content such as silicon metallurgy, silicon thin films, silicon refractory materials, etc.

Anyway, too many skills don't overwhelm you.

Thinking of this, Chen Nian suddenly felt relieved.

After the last class, he went back to his residence and fell asleep with his head covered.

This sleep was so dark that when he got up to look at his phone, he thought he would miss a lot of calls and messages, but he didn't expect that there were none of them.

It seems that in these years, human beings have not yet evolved to rely on electromagnetic waves to live.

Chen Nian shook his head, tried his best to wake himself up, then put on his clothes and walked out the door.

He originally just wanted to have a meal, but unexpectedly, in the cafeteria, he met an acquaintance whom he hadn't seen for a long time.

Joe Mai.

Chen Nian vaguely remembered that the last time he saw her seemed to be before the problem of the hot isostatic pressing equipment was solved. Later, he became more and more busy, the time for eating became shorter and shorter, and the time for going to the library became more and more irregular. I never met her again.

When we meet again at this time, Qiao Maizheng and Li Xiang are sitting at the same table for dinner, but judging by their actions, they probably are not familiar with each other.

Chen Nian stepped forward to sit down, and when Qiao Mai saw him, he immediately said with a smile on his face:

Long time no see, Chen Nian, what have you been up to lately?

Uh, I'm busy studying. What about you, long time no see, are you busy too?

Well, I went for an internship and research a few months ago, and I wasn't at school.

Oh, so. Research what?

Domestic hot isostatic presses are not considered research, but if there is an opportunity to follow and learn.

? ? ?

Hearing this, Chen Nian put a question mark on his forehead.

She can still participate in the investigation of the hot isostatic press?

It seems that Xueba is indeed a Xueba, and cannot be speculated by ordinary people's thinking.

Chen Nian sighed silently, and then ate his own food, but Li Xiang, who was at the side, became interested, and asked along the topic:

What did you learn?

Many, the latest hydraulic structure, some precision mechanical design, and full air bearings. You are not professional in this field, so it is difficult to explain to you.

But anyway, it's right that it's very advanced --- so it seems that the gap between us and foreign countries is not that big.

Qiao Mai's face was full of emotion, which aroused Li Xiang's curiosity even more.

So how advanced is it, can you tell me?

Uh, how do I tell you, for example, air bearings, I remember that we were completely incapable of manufacturing high-precision air bearings before, mainly because the processing accuracy and material strength were not good enough, but when we went this time, the latest signal The hot isostatic press has already begun to use air bearings on some components, indicating that we have completed this part of the technological breakthrough.

Although it is not easy to use compared to imported bearings, at least it has achieved a breakthrough from 0 to 1.

If this thing continues to be optimized and developed, it can have a great effect in many fields.

Recently, our Northwest Electromechanical Institute is engaged in single crystal furnaces. Single crystal furnaces are used to make silicon materials and chips. When the raw materials are manufactured, lithography machines and etching machines are required for etching .”

Both of these devices require the use of high-precision air bearings.

We didn't even dare to think about it before, but now we finally have a chance.

I see!

Li Xiang nodded with emotion, this is indeed something worth celebrating.

But Chen Nian on the side didn't feel any fluctuations in his heart.

Because he already knew about it.

The breakthrough in air bearing technology is actually a derivative technology of the No. 22 project, and it has also brought him a source of income.

However, although he was not surprised, he would not spoil the atmosphere at this time, he just ate quietly and listened to Qiao Mai and Li Xiang chatting.

So if we really want to build a lithography machine, can we build it now?

Li Xiang continued to ask.

Uh, I don't really understand this part, but there is a structure in the lithography machine that is indeed within the scope of our research, that is, the alignment system.

What is an alignment system?

To put it simply, the process of lithography is the process of engraving with light. To ensure accuracy, you must ensure that your 'knife' falls on the correct position of the 'drawing board'. To ensure this, the alignment system must Things to do.

This process is very complicated and involves a lot of structures. We are still using a manual alignment system, which is far behind the technology of large foreign companies. It is estimated that there is no possibility of breakthrough in a short time.

Hearing this, Chen Nian frowned suddenly.

He raised his head and asked:

What? Our current lithography machine uses a manual alignment system?

In his impression, although domestic lithography machines have poor precision and low efficiency, they still have complete basic functions.

After all, this thing was born in 1974. After continuous optimization and upgrading by the 1445 Institute, the functionality is still complete. How do you do it? Are you still using manual alignment?

This touches on his knowledge blind spot.

Hearing his question, Qiao Mai was also surprised:

Ah? Don't you know? That's right, you shouldn't pay too much attention to this.

But now our alignment system is really poor. The 1445 Institute has experimented with many methods before, and it has not solved the problem of automatic alignment—similarly, the accuracy is not enough.

Isn't the 1445 using the coaxial + off-axis double alignment method?

Chen Nian was very surprised. For some reason, this stuff was reported overwhelmingly in his previous life. Even a layman like himself had seen a lot of it. He thought that the problem of the alignment system had been solved long ago in China.

No, the technical difficulty of off-axis alignment is very high, and the design principle is also relatively complicated. We haven't figured it out.

This thing is complicated??

You said that it is difficult to manufacture, and I can accept it, but the principle is complicated. Isn't it the principle of light diffraction?

As soon as he finished speaking, Chen Nian suddenly had a flash of inspiration and remembered more details about the reports he had read before.

yes!

The earliest off-axis alignment technology was invented by ASML in 1999 and officially used in 2001. The coaxial + off-axis technology that I mentioned appeared in 2007.

At present, there is indeed no opportunity to have access to the latest lithography machines in China, and naturally there is no ability to replicate this technology.

So, it seems normal that Qiao Mai doesn't know, or no one in China knows?

But I really know it!

You can know it even without the help of the system!

Because of its principle, it was not as complicated as Qiao Mai expected.

Thinking of this, Chen Nian continued without waiting for Qiao Mai's answer:

The principle of off-axis alignment technology is actually not complicated. In the final analysis, it uses fixed wavelength light for diffraction irradiation, and then marks the reference grating, and then uses Moore to calibrate. When the silicon wafer is aligned with the grating After that, the alignment is basically done.

The most difficult thing in this process is not to mark, but to maintain the stability of the system and the specific operation method.

Listening to Chen Nian's eloquence, Qiao Mai's expression gradually became serious.

She frowned, and silently deduced the technical operation that Chen Nian said in her mind, but before she could finish the deduction, Chen Nian suddenly stopped.

What's the matter? Why don't you continue?

Qiu Mai asked suspiciously.

Uh, I don't know about it later, I also saw it in a magazine by chance.

Oh, like this.

There seems to be nothing wrong with your method, and the principle is not that complicated, just like what you said. The difficulty of this technique is not the principle, but how to implement it.

However, it is better to have a theory than no theory. Maybe after a while, we will be able to realize this technology.

Qiao Mai's expression was a bit regretful, but Chen Nian was secretly glad.

Hey, it's a good thing I got it!

He originally thought that this was a very simple technology, and it did not involve confidentiality requirements at all.

But I didn't expect that the system jumped out before the words were half spoken!

【TSI+Athena Alignment System】

[Analysis source requirements: 3.6]

[Analysis of source requirements: 3.2]

[Analysis source requirements: 2.1]

Accompanied by the continuous decrease in the demand for analyzing source points, the number of source points held by oneself is constantly increasing.

And when the demand for parsing source points drops to 1.5 points, the number of source points I receive directly increases by 0.7 points

It was only then that Chen Nian remembered that this thing is an increase in knowledge for the current world!

So, I can't say it yet, at least not to Qiao Mai and Li Xiangting who are not in the secret sequence.

When you go back, find a time to write it down, and throw it to the experts of the Institute of Optoelectronics for research.

But having said that, with the addition of 0.7 source points, the consumption of the digital array radar will be made up at once.

He didn't even bother, and started the analysis directly.

After a burst of intense dizziness, the technical obstacles of the digital array radar were completely removed!

Then, he raised his head and looked at Qiao Mai in front of him, thinking to himself:

Don't these sisters have koi attributes?

Every time I see her, I get a bit of an unexpected harvest. Although she didn't bring it, she started it both times.

If this kind of thing happens for the third time, I will find a way to give her an offering in the group, and it would be good to be a mascot.