Rebirth: I carry a desktop computer inside me

Institute of Microelectronics, Mizuki University.

In mid-August, Dr. Li Xinyi finally lived up to his expectations and initially found a new method under the team's repeated discussions.

Through etching technology, a bottom electrode is formed on the substrate, and then epitaxial technology is used to successively lay a lead perovskite layer, and then make a top electrode on top.

Although the whole idea is there, it is not easy to prepare.

After simulating these experimental equipment, Jiang Cheng preliminarily selected several directions through thousands of simulations in the simulation laboratory, and put forward his "guesses" through the discussion of the seminar.

It opened everyone's minds all at once.

Xu Dawei was very happy.

So I left everyone to work overtime, and I almost didn't arrange beds in the laboratory.

Although he has an idea, after all, it is Jiang Cheng's simulation in the simulation experiment, not the real world.

Some impurities can affect the finished product.

It is necessary to find more appropriate methods to achieve the goals under the theoretical design.

This work took more than half a month.

11 September, 4 p.m.

The entire preparation experiment is stuck in a critical step.

When the lead perovskite layer is directly evaporated to make the top electrode after spin coating, the arrangement of the intermediate layer will be affected, and then the effect will be affected.

When Jiang Cheng simulated the laboratory, after all, it was perfect experimental conditions, but these perfect conditions were extremely difficult to achieve in reality.

Just like Jiang Cheng through the simulation of the lithography machine, the wafers produced will not have anything such as yield, but the design is good enough, and the principles prepared are basically the same.

However, the reality is impossible, the production process will still be affected by many factors, including process proficiency, production floor cleanliness, and even different impurity distribution of different wafers, which will also affect the yield rate.

To this end, Jiang Cheng is still constantly simulating to see if he can find a solution.

"I think we can cover the dielectric layer with a protective layer, such as a polymer solution." When everyone was a little discouraged, Jiang Cheng put forward the idea again.

Xu Wei encouraged everyone, "Okay, everyone is in good spirits!" Let's continue to try, you all see, in the past half a month, Xiaojiang has participated in the whole process, how many ideas have been proposed, and if it fails, it will find a way, isn't scientific research like this?

Li Xinyi nodded and collected his somewhat tired expression, "Okay, let's try again." Several

people deliberated, and while asking people to mix the solution, they continued to try.

At 5:30 p.m., Zhang Jing took Wang Xiaogang and others to bring a few bottles of solution, and everyone started the next experiment.

If it doesn't work this time, then you can only go home from work.

Then this failure will still affect the mood of everyone.

Jiang Cheng raised his hand, "Mentor, I'll come with Dr. Li."

"Good." Xu Wei nodded and went by Jiang Cheng.

Putting on fully protected lab coats, several people entered the dust-free laboratory again and dried the small piece of material again.

The previous steps were still skillful, and soon through heat treatment, a bottom electrode and mineral layer were formed on top of the substrate, and using tools, Jiang Cheng applied the solution evenly, and then annealed.

Immediately afterwards, the top electrode is prepared by thermal evaporation.

Li Xinyi also operated the experiment, and beside him, Jiang Cheng was already a master.

At that moment, Li Xinyi felt that he cooperated very well with him.

Even with Xu Wei, I don't feel so comfortable.

After ten minutes, the semiconductor was prepared and cooled down.

Xu Dawei was very nervous next to him and began the test.

Several others clenched their fists tightly, sweating with nervousness.

On the contrary, Wang Xiaogang and the others, who were miscellaneous, were a little bored.

Many of this preparation process are completely new, and they can't understand it at all.

It can only be a miscellaneous look.

As for Jiang Cheng, hehe, he is already a big guy.

I can't hook up and call Brother Jiang anymore, alas!

Xu Wei's face already had joy, "Well, preliminarily, we have succeeded!" "

Yay!"

"Good!"

A few people shouted beside them, finally half successful, you can take a break.

"However, the specific situation, we still have to test it." Xu Wei collected his happy mood, if he really wants to succeed, he has to wait for the circuit experiment!

Zhang Jing listened to it on the side, sighed, and knew that he had to order takeout again.

......

Fortunately, Xu Dawei was in a good mood, so he let his group go to eat first, leaving Dr. Jiang Cheng and Dr. Tang Jianshi, ready to go straight to work.

If you succeed in one piece, you can put the whole small circuit on it.

Of course, there is no need for high accuracy now, and micron-level tests are enough.

A few people did not plan to eat, Jiang Cheng was even more immersed in it, and at half past six, through the etching method, a 16-bit memory chip circuit was completed.

Then, take it directly to the power-on test.

Through the current switching test and many tests such as the change of current magnitude, I feel that the design requirements are basically met.

The switch current does not lose data, that is, it does not empty the saved resistor value.

The magnitude of the current is the data that forms a high potential (1) and a low potential (0).

It is equivalent to being able to store countless data composed of 1s and 0s.

"It worked!" Xu Wei happily slapped his thigh heavily and stood up.

The crowd cheered!

"Great!"

"Finally! Sure enough, Jiang Cheng's method is effective!

"This kid is really powerful!"

After fighting continuously for so long, I finally had a preliminary result.

Although, this memristor is still very rudimentary, with only 16 bits of data storage capacity.

However, they all believe that in addition to process improvements, circuit designs are more complex and can achieve more and more useful functions.

Not only that, Jiang Cheng proposed this method, and the preparation cost is not high.

It is a process method that can achieve mass production.

Jiang Cheng was also so tired that he took off his lab coat and lay lazily on the chair.

Wang Xiaogang hurriedly took the box lunch over, "Senior Jiang, Senior Jiang Cheng, let's eat quickly." "

Thanks, Xiao Gang." Jiang Cheng nodded in thanks, but it felt a little strange to call him this title.

However, I think it is also that he is in the same grade as Wang Xiaogang, not an undergraduate, but a direct doctoral student.

According to this reasoning, it is normal for people to call it acoustic long.

It's just weird.

Jiang Cheng did not correct either, and he was indeed hungry.

Continuously using the powerful computing power of supercomputing in the body, although the energy supply is not lacking, but after all, it has been running at high power, that is, sweating, but also consuming a lot of Jiang Cheng's physical strength.

Xu Dawei also ate a light meal, looked at Jiang Cheng, his eyes were full of concern, "It's thanks to you kid following the project, otherwise, it is estimated that we will not be able to get this result in a year and a half."

Jiang Cheng smiled modestly, "The mentor is over-prestigious.

Li Xinyi interjected, "Director Xu is right, and I agree. Xiaojiang, you are a good hand in scientific research, you can already lead the group to do some big projects. "

During the deputy, everyone was convinced.

No wonder it can be valued so much by Xu Dawei, that is really level.

For more than two months, people have devoted themselves to the whole process, proposed a 3P hybrid training model, and finally established a 4-layer memristor process structure in the direction of semiconductor preparation.

These are the foundation for the success of the project.

Tang Jianshi also nodded and said enviously, "Lao Xu accepted a good student!" Only

Zhang Jing, the junior doctoral senior, was a little stunned.

It seems that it won't be long before he may have to call Senior Jiang Cheng...