Military Industry of Great Powers: Build the Strongest Flanker

Ji Hongbo knew very well that the experts in Judea were unwilling to upgrade the old platform perhaps because of the dollar issue, but the reason why domestic experts, including himself, were unable to upgrade the old platform... was the chip.

Of course, electronic tubes can also be used to create equipment with corresponding functions, but the weight of several tons and the huge power consumption make it impossible to use them on airplanes.

On the chip, the calculation auxiliary chip has no problem, but the ADC digital analog chip and DAC analog digital chip have big problems.

There are still many physical and material problems in high-voltage pulse current conversion, which are still gaps in domestic research.

In the final analysis, we just can’t find transistor materials and structures that can control large currents.

"This guy directly circled this circuit and drew a detailed structural diagram!"

"What is a field effect transistor? Is this structure feasible? Can gallium nitride N-class materials be able to pass through large currents without being broken down?"

Ji Hongbo was full of doubts, but it didn't look like he was just making it up.

Looking at the drawings again, although the entire chip design has not yet been completed, each part has detailed annotations and functional divisions...

Ji Hongbo can even see the design idea of ​​this chip. Yes, the function is designed from the requirements, the steps to implement the function are designed, and then the circuits of each part are designed in detail to form the entire chip.

"There's nothing wrong with the logic!"

All right! As an associate professor, he couldn't find any problems. Not only could he not find any problems, he also had many technical skills that were in his blind spot.

For example, this logic gate is a bit difficult to understand when put together!

Looking back at Zhao Guoqing, I wanted to call him out, but I couldn't.

"How about it?"

Director Liu Qing is very concerned about it, Zhao Guoqing is the person he likes.

Ji Hongbo didn't know what to say, so he just nodded.

Liu Qing understood and calmed down. This boy didn't seem to be careless. His character was still guaranteed, but he still wanted to ask more questions.

"Didn't you say that all the Jewish experts rejected it?"

"..."

"Director Liu, the matter is a bit complicated. I won't be able to explain it for a while. By the way, can I take these drawings with me? I want to discuss it in the group tomorrow!"

"This..." Liu Qing looked at Zhao Guoqing.

"You have to ask the person involved!"

Gao Changming hurriedly went to wake up Zhao Guoqing.

Looking again at the young man in front of him, Ji Hongbo had to lament that he was too young. In comparison, he had lived as long as a dog in these years.

"Comrade Zhao Guoqing, I am Ji Hongbo from CLP. I just saw your design drawing and have a question. Can GaN N-pole field effect transistors really control large currents? Have you done any demonstration or physical experiments? Have you passed?"

"Chengdu Aircraft Research Institute 14 does not have this condition, but the Institute of Microelectronics of Tsinghua University can do it, and the physical testing can be done there!"

Ji Hongbo frowned slightly and said: "Xiao Zhao, how can you be so sure that this kind of transistor structure is feasible, and there is also gallium nitride material..."

Gao Changming heard about gallium nitride again, and remembered that when he first met Zhao Guoqing, the young man in front of him was sure that gallium nitride was a material that had great potential. Now it seems that high-purity gallium nitride crystals and blue light-emitting semiconductors, I'm afraid these are just tacks on!

Zhao Guoqing took out the calculation book, handed it to Ji Hongbo, and said: "This is a mathematical model, established through the physical properties of the material, and the calculation data shows that this structure is reliable and has a lot of redundancy."

"call!"

I don’t understand, but it makes sense? Ji Hongbo can be sure that there is no corresponding research in China. As for foreign journals and documents circulating in China, there is no such content.

"Where did you see this theory?"

Zhao Guoqing shook his head and said: "The corresponding physical properties of gallium nitride semiconductors are introduced in journals. Compared with semiconductors such as silicon, silicon carbide, silicon nitride, and germanium, gallium nitride has a larger energy gap electronic bandwidth..."

Good guy, this is okay, Ji Hongbo can't say a word.

If you can design a mathematical model of a semiconductor structure through a few journals and pass the calculation, you will either be a genius or a madman.

The difference between a genius and a madman depends on the outcome of the physical argument. If this theory is established, Ji Hongbo can fully imagine what this means...

Liu Qing was confused after hearing this, but looking at Ji Hongbo's cautious expression, he could guess that Xiao Zhao must have achieved great results.

If it is really feasible, it will help the country save hundreds of millions of foreign exchange. Secondly, it will also help the localization of these imported weapons!

"Does what Xiao Zhao said make sense?"

Ji Hongbo smiled bitterly and said: "I don't know either. I still need to prove it. If it succeeds..."

"What if it works?"

"...It may fill many research gaps in our country..."

"..."

Another groundbreaking study?

Liu Qing secretly rejoiced. Fortunately, he came here in person today. Fortunately, he called Ji Hongbo over in the evening. Otherwise...

He looked at Zhao Guoqing, who was still yawning.

"Forget it, let's go back to sleep and we'll talk about it tomorrow!"

Ji Hongbo looked at Director Liu. He was woken up by you in the middle of the night. He was so busy now. How could he sleep? He looked at the time and saw that it was almost four o'clock in the morning.

"Is there a rest room here?"

"There is a room at the end of the corridor that was originally reserved for Guo Qing. Guo Qing slept in the drawing room, so it became vacant!"

"Okay, I'll just spend one night here. Comrade National Day, let's go to Tsinghua University together tomorrow. Do you think that's okay?"

Gao Changming also felt this attitude. Lao Ji was a bit too polite towards National Day.

Liu Qing waved his hand. The old man couldn't keep up with his energy, and his companionship was already at his limit.

"I'll leave first. You guys have a good rest. See you at Qingda University tomorrow!"

Zhao Guoqing also nodded. He really wanted to go to Tsinghua University to see it.

He has not yet seen the test of the blue gallium nitride light-emitting semiconductor. It is said that this blue light-emitting semiconductor cannot be directly used for lighting.

There is another step, which is to irradiate the phosphor with blue light to excite white light, which can be used for lighting. The phosphor is also one of the important patents of LED lighting.

No matter whether LED can intervene or not, there must be a result.

…………

The next day, Zhao Guoqing woke up naturally from his sleep. When he opened his eyes, he saw Professor Ji Hongbo sitting in front of the drawing board studying the drawings.

After getting dressed and saying hello, I found that Professor Ji's eyes were bloodshot.

"National Day, you go and wash up first, I have something to ask you!"

"good!"

He took the washbasin to the public restroom, washed himself briefly, and returned to the drawing room.

"National Day, have you studied chip design?"

"Professor Ji, I graduated from Western University. Our school library has this information."

"Self-taught?"

"Your design idea is very useful as a reference!"

Zhao Guoqing nodded secretly. Whether it was the underlying structure of the ADC chip that Professor Ji mentioned yesterday or the chip design idea he mentioned today, he hit the nail on the head and got the point right.

"The Americans proposed the standardized chip design process ten years ago. They are now studying how to use computers for aided design. In this regard, we are already far behind!"

Rubbing a chip by hand, a chip with several thousand transistors is already the limit. Any more, and the difficulty will increase exponentially. It is simply not something that can be completed by manpower. Can we use this to establish a computer-aided design EDA software project?

Zhao Guoqing is looking forward to it!