From Almighty Scholar to Chief Scientist

Chapter 320 Its critical current density has increased

In addition to Huawei taking advantage of this Dongfeng, there are already rumors that foreign mobile phone Soc chip design companies have begun to contact Huaxia chip manufacturing companies. Of course, there are not many companies that can design mobile phone Soc chips now, except Huawei. In addition, the three companies Qualcomm, Apple, and MediaTek have found Huaxia Chip Manufacturing Company, and Samsung's chips are naturally manufactured by itself. Of course, its own chips do not have a strong sense of presence in the mobile phone market. .

However, these companies are only in touch now, and they are still waiting for Huawei's new mobile phone to come out and actually test its performance.

What Lin Xiao said at the press conference was awesome, but how he will actually perform in the end will have to wait until the actual results come out.

Usually, the data introduced at the press conference or on the product details page are just laboratory data.

However, the experimental data obviously cannot be taken seriously. If the actual experience of consumers can completely match the experimental data, then some mobile phone manufacturers will probably go out of business, because their experimental data will obviously be very embarrassing.

However, Huawei's new mobile phone is released, so it will take some time to verify this news.

Of course, these mobile phone chip design companies are not the only ones who need Huaxia chip manufacturing companies. Besides them, there are also computer processor and graphics card manufacturers who are also very interested.

For example, AMD contacted them early, asking if they could make processors and graphics cores, and hoped to reach a cooperation soon.

For the massage shop, although it not only competes with Intel on the CPU, but also competes with Nvidia on the graphics card, it seems to be on the bar with these two surnames Ying, but its actual technology has always been used by these two companies. Pressed, which is why it is called an agricultural enterprise.

Now that Huaxia Chip Manufacturing Company has the best 5nm technology in the world, massage parlors will certainly not miss this opportunity.

Both Intel and Nvidia are very clear about this idea of ​​massage shops, but Intel has its own chip production line and has no time to do these things, and Nvidia's yellow leather jacket is still thinking about how to use the recently launched 40 series The graphics card has pushed up the slumped stock price, so now they have no intention to study the possibility of finding Huaxia Chip Manufacturing Company to produce their graphics card, so they can only watch the massage parlor take advantage of it.

All in all, in addition to the mobile phone industry, the PC industry is also in turmoil, and these companies are considered to be the most famous in the entire semiconductor industry, and they are also the companies with the highest profits. As a frequent visitor on the Internet, the world is paying close attention to what actions this company belonging to Huaguo will make next.

However, for Huaxia Chip Manufacturing Company, it is obviously not in a hurry for these things. After all, the production capacity brought by five X-lithography machines is still relatively limited, at least it has to wait until a few more production lines are built.

In addition, the emergence of Huaxia Chip Manufacturing Company is obviously good news for Huaguo's supercomputing industry.

Although Huaguo Supercomputer is very strong, but due to the upper limit of chips in the past, it is no longer difficult to maintain its position as the number one single machine.

For example, Sunway TaihuLight uses the domestic processor Shenwei 26010, which uses 28nm process technology, and the number of processors in Sunway TaihuLight is as high as 40960, and each processor has 260 cores. It is equivalent to a total of more than 64 million cores in Sunway TaihuLight.

The supercomputers ranked ahead of Sunway TaihuLight, such as the summit supercomputer in the United States, use a 14nm process core with only more than 200 million cores, but the computing power is about 1.7 times that of Sunway TaihuLight , this is because of the advantages of the manufacturing process.

In the past, Huaguo had no way to deal with this situation. Although it had world-class supercomputer construction capabilities, it could not produce chips with advanced manufacturing processes. Even Intel was banned from providing processors for Huaguo supercomputers.

But now that Huaguo has its own top-notch chip production capacity, it is naturally possible to start trying to design such a top-notch chip.

It is reported that domestic scientists who study supercomputers already have such a plan.

However, if it is really going to be manufactured, funding is obviously a big problem. After all, the production cost of 5nm chips is inherently much higher than that of 28nm chips.

Therefore, this matter is still under planning and discussion, and there is no plan to build it yet.

However, no matter what, being able to start discussing this matter is much better than having no discussion at all before.

In the past, even if you had money, you couldn’t get it, now it’s only a question of money, so people even speak more confidently than before, and when they are online with those who hate the Guo party, they also have enough. confidence.

The X-ray machine that foreigners can't make, they Huaguo made it, and they still produce it independently, which makes them feel unconfident.

Undoubtedly, the complete success of the X-ray project has begun to subtly change people's mentality.

……

Time passed slowly, and time came to the beginning of December.

In Beijing in December, the cold is naturally quite cold.

Of course, this coldness did not stop Lin Xiao from Dingguang Research Institute from feeling excited.

"Finally done."

He picked up a black and slender solid on the table in front of him, and looked it over carefully. This thing was YBCO, the world's first discovered high-temperature superconductor.

However, unlike the yttrium barium copper oxide that is usually prepared, the yttrium barium copper oxide in his hand has another molecular structure.

"Is this the thing that made you do it for more than a month?"

A person came by and asked with a puzzled look.

This person is Chen Xun, a domestic expert in superconductor research that Lin Xiao successfully poached from the Superconductivity Laboratory of the Institute of Physics.

Of course, strictly speaking, Chen Xun does not completely belong to the Institute of Physics, but only works in the superconducting laboratory of the Institute of Physics. He himself belongs to the professor of the School of Physics of Shangjing University.

Because the Superconducting Laboratory of the Institute of Physics is currently the largest superconducting laboratory in China, people from other institutions can also join in as researchers and share the laboratory.

Of course, this present is about to become a thing of the past, because the superconducting laboratory to be successfully built by the Dingguang Research Institute will take its place.

This is why Chen Xun was easily hired by Lin Xiao. In addition to the name of the Dingguang Research Institute, a larger superconducting laboratory is very attractive to a superconducting physicist like him.

And hearing Chen Xun's words, Lin Xiao nodded with a smile: "That's right, it's this thing."

"An equivalent topological body found according to the theory of electron topological bonding? In this case, didn't you explain it in the theory of electronic topological bonding? Are their properties the same?"

Lin Xiao shook his head, "The nature is the same, but the internal structure has changed after all, so in some cases, they will produce different effects."

"What effect? ​​Superconducting?"

Lin Xiao smiled, "Let's try first."

Then he came to the side, brought over a cylinder filled with liquid nitrogen, and opened the bottle.

A puff of white gas came out from the mouth of the bottle. The white gas was naturally water mist. The low temperature of the liquid nitrogen inside caused the water molecules in the air to condense into small water droplets, thus forming this phenomenon.

Of course, there is nothing strange about this. Lin Xiao directly put the new structure of yttrium-barium-copper-oxygen in his hand, clamped it with a pair of tweezers, let it be completely submerged, and began to cool.

After almost the time, he took it out, quickly wrapped it in a layer of insulator, and then put it on a shelf on the laboratory bench, then brought the alligator clips, clamped it both sides.

Next, start powering up the alligator clip.

Although the naked eye cannot see the current, it is obvious that the yttrium-barium-copper-oxygen in front of him has already been charged with electricity.

Then, Lin Xiao casually found a small magnet from the side and put it on it. After a while, the small magnet floated "magically".

Apparently, this is the Meissner effect of superconductors. Due to the current passing through YBCO, the YBCO that has entered the superconducting state has complete diamagnetism, which makes the small magnet float.

However, these are all normal. Chen Xun next to him has done this experiment countless times. So far, Lin Xiao has not done anything to surprise him.

But as soon as he thought about it, Lin Xiao started to move.

Because he began to increase the input current.

Seeing this scene, Chen Xun couldn't help being stunned, "Director Lin, who are you?"

If you continue to increase the current, according to the critical current density of YBCO 5*10^8A/m, once it exceeds, it will immediately exit the superconducting state and return to normal. At that time, its internal temperature will also suddenly increase due to the thermal effect of the current. It will have to be re-frozen at that time.

The cross-sectional area of ​​Lin Xiao's YBCO is estimated to be only 0.5 square centimeters, which means that its maximum current can only be 25000 amperes.

And now Lin Xiao's input current has reached as high as 22000 amperes!
But this is not enough, Lin Xiao is still rising.

Even, more than [-] amperes!

However, what Chen Xun couldn't believe was that even though the current had exceeded [-] amperes, this piece of YBCO was still in a superconducting state!
Even, the current size is approaching 3WA!

"This……"

Chen Xun couldn't believe it, could it be that he was wrong?

The cross-sectional area of ​​this thing is more than 0.5 square centimeters?

But for this, he couldn't believe it at all, because he could tell at a glance that the cross-sectional area of ​​this thing would definitely not exceed even 0.6 square centimeters!

"Director Lin, why is this?"

Finally, he couldn't help asking.

Lin Xiao replied calmly: "Because its critical current density has become larger."

Chen Xun was startled, recalling what Lin Xiao had just told him.

This YBCO has a different internal structure, so in some cases, it will also show different effects...

At this moment, he already understood what Lin Xiao meant!
(End of this chapter)