Chapter 419
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From which direction? There is a lot of knowledge here.
Byron couldn't help laughing at Qi Lei's thinking.
"Don't think about it. You don't understand it at all. What research direction can you find by intuition?"
Qi Lei looked up and finally understood why Warren always had the impulse to strangle Byron. This guy really didn't like what he said.
But you can't be more serious with him.
First of all, the grandson has too much skill, so we have to use him.
Second, he really doesn't have a bad heart. He simply doesn't care about other people's feelings. In fact, he is a good person.
At this point, Byron said, "do you need me to give you some professional advice? Of course, Mr. Nan can discuss it together."
Qi Lei naturally said nothing, "say!"
However, the first sentence of Byron made Qi Lei a little crazy.
"In fact, you don't have many choices."
“？？？？”
Byron looked serious. "These days, in addition to preparing for the laboratory, I have also learned about your microelectronics industry in China in detail."
Before he finished, Qi Lei interrupted, "now it's China!"
"All right!" Byron smiled bitterly.
It's really China, because he has decided to join Chinese nationality and is going through relevant formalities.
"Our... Microelectronics industry is not developing well," he continued
Qi Lei, "..."
Byron, "it's almost blank! If I had known this was the case, maybe I would reconsider my decision to come to China!"
Qi Lei, "..."
Special!! I can't stand it!
Byron, "Qi, please don't get me wrong. I'm not sarcastic, but expounding the facts."
Qi Lei shrugged, "that's why we need you."
Byron nodded. "This is really the driving force that drives me into this career! Qi, you can't understand. I'm very excited now."
“？？？？？” Qi Leixin said, what's your routine? Is it a little fast? Just finished reconsidering the decision to come to China, which is exciting again??
But Sam couldn't listen. "He meant that if he had known this, he would have come to China long ago without your invitation!"
"Ah?"
Sam couldn't laugh or cry. "This madman, when he was in England, longed for a piece of industrial white paper for him to give full play."
Well
Byron, "Sam, shut up. I'm serious."
Sam, "..."
Byron is really not funny, and he is not in the mood to beat around the bush with these dirty people, "Qi, in fact, this is an advantage!"
Qi Lei, "what do you say?"
Byron, "it is precisely because China's microelectronics field and semiconductor industry started late that there is no industry at all, so it is more conducive for us to establish a complete industry."
Qi Lei listened and blurted out, "late development advantage!"
"Late mover advantage?"
Byron and Sam both raised eyebrows. The word is very accurate.
Byron, "I can't wait to complete the construction of this industrial chain."
"Oh, shit, we lack Warren! That guy is best at this. He shouldn't sleep in arm."
Sam said, "it's the same with Qi Lei. He's more cunning than Warren."
Byron, "no! He's cunning, but he doesn't understand!"
"Cough!!" Qi Lei couldn't stand it again. "Let's get down to business!"
Looking at Byron, "so you want to build an industrial chain?"
Byron, "of course, but only if you have money, a lot of money!"
Qi Lei, "it's not something you worry about."
As long as Byron is willing to do it, I'll pay for it.
It's just that Qi Lei doesn't understand. Since he has the advantage of late development, you also think it's a good thing. How can he choose not many?
Byron's explanation is, "there are really few choices, just take those Microelectronic Materials and devices I just mentioned!"
Byron gave Qi Lei examples one by one.
"For example, monocrystalline silicon wafer."
"It is not difficult for me to prepare high-purity monocrystalline silicon. Even for large-diameter wafers, I am confident to complete the process design of industrial manufacturing in the laboratory."
Sam was afraid that Qi Lei didn't understand and explained, "the preparation of high-purity monocrystalline silicon belongs to the difficulty of the semiconductor industry, but that's the case. The real difficulty is the large diameter."
"Because the chip is etched on the chip, small blocks are arranged in parallel one by one, and a chip can etch many chips at the same time."
"However, the chip is round and the chip is square, which will inevitably lead to a waste of raw materials at the edge."
"This means that the larger the diameter of the chip, the lower the waste rate and the lower the cost of chip manufacturing!"
"Therefore, wafer suppliers all over the world are trying to make wafers as thick as possible."
After Sam explained, Qi Lei nodded to understand.
In fact, in later generations, he also read some reports about wafers and chips, and knew that this thing was particularly important in chip manufacturing.
"Then we can consider starting this technology first."
But Byron poured cold water directly, "it's useless!"
"Why is it useless?"
Byron, "the process I completed in the laboratory, can you put it into production immediately?"
Qi Lei, "..."
Byron, "industrial mass production, you... We don't have such a factory or supporting technology."
"Even if I finish the research, I can only lie in the laboratory and wait for supporting facilities within five to ten years."
“……”
"Besides, wafer manufacturing has been monopolized by several major manufacturers all over the world. Are you confident of breaking this monopoly?"
"Commercial application is a problem you should consider. Do you need me to remind you?"
"If you can't make money, what's the point of studying it?"
Qi Lei, "..."
His face turned red and he pondered for a long time. Finally Give up.
Or, let it go first.
There's no way. People are poor and short of ambition.
It is really unrealistic when the industrial chain is almost poor.
The more important reason is that Qi Lei really doesn't have so much money.
If he had a 180 billion meter knife in his hand, would I still talk to you? It's done. I'll make up for what you lack.
Unfortunately, it's still too poor!
Next, Byron listed some research lines.
For example, logic circuits. That's the world of arm and Intel. There's no advantage in killing it.
Photoresists, oxidizing materials and high-purity chemical reagents are still not something that the Japanese should start at the initial stage.
Finally, among the dozens of options related to the field of microelectronics, Byron only gave Qi Lei four options.
Or, it's Sam's four options.
"Polysilicon, plastic packaging materials, ultra-high purity gas materials, and wide band gap semiconductor materials."
Sam explained, "first of all, Byron has academic advantages in these four fields."
"Second..."
Sam explained to Qi Lei and Nan Lao one by one, "polysilicon, although the international supply competition is also very fierce."
"But after all, this is the upstream raw material of monocrystalline silicon. The supporting industrial level is also relatively low. It is easier to achieve mass production. Maybe we can find a way out."
"For plastic packaging materials and ultra-high purity gas materials, first, they are iterated more frequently, which is easy for us to surpass; second, the level of supporting industries required is low, and most of the proportion comes from the chemical industry. In this regard, China has a foundation. As long as we find a cooperative chemical plant and carry out supporting upgrading and transformation, we can achieve mass production."
"And..."
At this time, Qi Lei had guessed, "moreover, in the chemical industry, China has the advantage of manufacturing cost."
Sam: "yes! At present, Japanese manufacturers and American manufacturers supplying to the world do not have the advantage of China's labor cost."
"As long as we can do it, the cost must be lower and more competitive than them."
Qi Lei nodded and continued, "then... What's the width?"
Byron looked disgusted, "wide band gap semiconductor materials!"
Sam said, "the consideration of this option is completely different from the first three."
Qi Lei, "why is it different?"
Sam, "because this is cutting-edge technology!"
Qi Lei, "!"
In this regard, Nan Lao also knew something and explained to Qi Lei, "as long as you know, the energy of electrons in solids has discontinuous values."
"To put it bluntly, there is a gap between valence electrons and free electrons, which is called the forbidden band."
"If valence electrons want to become free electrons, they have to pay extra energy."
"The narrower the forbidden band, the lower the energy."
"For example, the band gap of silicon is 1.12 electron volts. If it is greater than 2.3 electron volts, it is called wide band gap."
At this time, Nan Lao smiled, "don't think the narrower the forbidden band is, the better. Under the trend that chips and manufacturing tools are approaching the physical limit, the narrow forbidden band is not a good thing. Sooner or later, it will restrict the development of chips."
"Therefore, wide band gap semiconductor materials have become a hot research direction in the field of microelectronics in the world."
Looking up at Byron, "Mr. Byron, what kind of wide band gap material are you good at?"
"Silicon carbide? Black silicon carbide? Green silicon carbide?"
Silicon carbide is a popular wide band gap material at present. It can be divided into black and green because of its different purity.
The purity of FA Luo silicon carbide is 95%, while the purity of green silicon carbide can reach more than 97%.
In this regard, there are also research teams in China, but they are still far from the international level.
It is said that some foreign companies have been able to realize the mass production of green silicon carbide and are in the demonstration stage.
Nan Lao is a little excited here. You know, black silicon carbide is better. If Byron can realize the mass production of green silicon carbide, he will find a treasure!
Only in this item, Qi Lei won't lose if he turns this man back.
However, what Nanlao didn't expect was that Byron sniffed at what was black and green. "I've also studied silicon carbide for some time. It's nothing strange."
Nan Lao, "??????"
I only heard Byron say, "the wide band gap material I set foot in is gallium nitride."
“！！！”
Nan Laoteng stood up, and Qi Lei was also surprised.
"Gallium nitride? Does the name sound so familiar?"
I can't remember where I learned about it, but Qi Lei can be sure that this thing should be great.
……
It's really awesome!
Gallium nitride, even in that time and space 20 years later, is still the frontier and hot direction of global semiconductor research, known as the third generation semiconductor material.
With wide band gap, high thermal conductivity and strong atomic bonds, it has high chemical stability, melting point of 1700 degrees and is hardly corroded by any acid.
Moreover, it has extremely strong high irradiation ability.
Because of these characteristics, it has a very broad prospect in the application of optoelectronics, high temperature high power rail devices and high frequency microwave devices.
Let's put it this way. Qi Lei may not know that in 1989, three Japanese scholars won the 2014 Nobel Prize in physics just by making a blue emitting high-performance diode with gallium nitride.
In the current year of 2002, gallium nitride should mainly be LED light-emitting devices.
As for later generations, the most well-known thing is that it is almost full.
After listening to the popular science of Nan Lao and Byron, Qi Lei remembered a sentence, "gallium nitride is also an important raw material for the manufacture of purple laser diodes."
Purple light?
Asmai?
"Just study this thing!!"
"For the remaining three, you can decide which one you major first. I want this thing!!"
Byron was stunned. To tell the truth, the most unreliable thing was gallium nitride.
For the other three options, Byron is confident that it can be put into production in a very short time.
But gallium nitride?
Maybe after twenty years of research and spending a lot of money, I'll just drift away.
What is called cutting-edge technology is what the characteristics of this thing are, how to mass produce and how to realize commercial value.
Its potential has not been fully tapped. No one knows what the final result of this research will be.
This is just like the later research on graphene. The material performance is simply invincible. Twenty years later, we are still exploring the high-quality material characteristics of graphene and constantly surprising mankind.
Once low-cost mass production is realized, human application of science and technology is a revolution.
However, no one knows when this thing can achieve low-cost mass production.
Maybe ten years, maybe a hundred years.
Generally speaking, gallium nitride is the same. It can be prepared in the laboratory, and mass production is not impossible, but without considering the cost.
As for mass production of low-cost devices, at least in 2002, it seems far away.
Even when other applications will be studied, no one can give a specific timetable.
To be honest, this research direction is very risky.
Why is Qi Lei, a profiteer, so determined to have this thing?
As a result, Qi Lei said, "Byron, I don't want any mass-produced gallium nitride substrate or LED."
"These can be released first. Let the Japanese play by themselves first. I just want one thing!"
Byron is a little confused. You don't know anything. Why are you so determined all of a sudden?
"What do you want?"
"Extreme violet laser!"
Byron: "
This thing? I'm not very good at it!
Byron is not God. He is just a chemist. He is good at studying materials, but gallium nitride is only a part of laser diodes.
That's the category of physics.
But I can't say that. Can't I say that? Don't kill Byron.
What if I can't do it?
There's only one reason.
"Qi, you really don't understand anything. This subject needs a whole team. I can't do it alone."
Look, isn't that a prevarication?
As a result, "who do you want? I'll find it for you!"
Byron, "..."
Chum!
Forget, this is not a matter in China.
How can this be done?
I had to harden my head, "let me think."
Sam frowned and pondered, "extreme violet laser?"
We're making chips, making this thing... There's only one place to use it!
Look up and try, "do you want to take the route of lithography?"
Qi Lei, "hey hey, guess?"
……
。
[monthly ticket slot]
[recommended slot]
The plot is a little concentrated. Isn't it boring?
It's almost over.
That's all for today. If there's nothing to do tomorrow, make it up at the third watch.
Please report us if you find any errors so we can fix it asap!
From which direction? There is a lot of knowledge here.
Byron couldn't help laughing at Qi Lei's thinking.
"Don't think about it. You don't understand it at all. What research direction can you find by intuition?"
Qi Lei looked up and finally understood why Warren always had the impulse to strangle Byron. This guy really didn't like what he said.
But you can't be more serious with him.
First of all, the grandson has too much skill, so we have to use him.
Second, he really doesn't have a bad heart. He simply doesn't care about other people's feelings. In fact, he is a good person.
At this point, Byron said, "do you need me to give you some professional advice? Of course, Mr. Nan can discuss it together."
Qi Lei naturally said nothing, "say!"
However, the first sentence of Byron made Qi Lei a little crazy.
"In fact, you don't have many choices."
“？？？？”
Byron looked serious. "These days, in addition to preparing for the laboratory, I have also learned about your microelectronics industry in China in detail."
Before he finished, Qi Lei interrupted, "now it's China!"
"All right!" Byron smiled bitterly.
It's really China, because he has decided to join Chinese nationality and is going through relevant formalities.
"Our... Microelectronics industry is not developing well," he continued
Qi Lei, "..."
Byron, "it's almost blank! If I had known this was the case, maybe I would reconsider my decision to come to China!"
Qi Lei, "..."
Special!! I can't stand it!
Byron, "Qi, please don't get me wrong. I'm not sarcastic, but expounding the facts."
Qi Lei shrugged, "that's why we need you."
Byron nodded. "This is really the driving force that drives me into this career! Qi, you can't understand. I'm very excited now."
“？？？？？” Qi Leixin said, what's your routine? Is it a little fast? Just finished reconsidering the decision to come to China, which is exciting again??
But Sam couldn't listen. "He meant that if he had known this, he would have come to China long ago without your invitation!"
"Ah?"
Sam couldn't laugh or cry. "This madman, when he was in England, longed for a piece of industrial white paper for him to give full play."
Well
Byron, "Sam, shut up. I'm serious."
Sam, "..."
Byron is really not funny, and he is not in the mood to beat around the bush with these dirty people, "Qi, in fact, this is an advantage!"
Qi Lei, "what do you say?"
Byron, "it is precisely because China's microelectronics field and semiconductor industry started late that there is no industry at all, so it is more conducive for us to establish a complete industry."
Qi Lei listened and blurted out, "late development advantage!"
"Late mover advantage?"
Byron and Sam both raised eyebrows. The word is very accurate.
Byron, "I can't wait to complete the construction of this industrial chain."
"Oh, shit, we lack Warren! That guy is best at this. He shouldn't sleep in arm."
Sam said, "it's the same with Qi Lei. He's more cunning than Warren."
Byron, "no! He's cunning, but he doesn't understand!"
"Cough!!" Qi Lei couldn't stand it again. "Let's get down to business!"
Looking at Byron, "so you want to build an industrial chain?"
Byron, "of course, but only if you have money, a lot of money!"
Qi Lei, "it's not something you worry about."
As long as Byron is willing to do it, I'll pay for it.
It's just that Qi Lei doesn't understand. Since he has the advantage of late development, you also think it's a good thing. How can he choose not many?
Byron's explanation is, "there are really few choices, just take those Microelectronic Materials and devices I just mentioned!"
Byron gave Qi Lei examples one by one.
"For example, monocrystalline silicon wafer."
"It is not difficult for me to prepare high-purity monocrystalline silicon. Even for large-diameter wafers, I am confident to complete the process design of industrial manufacturing in the laboratory."
Sam was afraid that Qi Lei didn't understand and explained, "the preparation of high-purity monocrystalline silicon belongs to the difficulty of the semiconductor industry, but that's the case. The real difficulty is the large diameter."
"Because the chip is etched on the chip, small blocks are arranged in parallel one by one, and a chip can etch many chips at the same time."
"However, the chip is round and the chip is square, which will inevitably lead to a waste of raw materials at the edge."
"This means that the larger the diameter of the chip, the lower the waste rate and the lower the cost of chip manufacturing!"
"Therefore, wafer suppliers all over the world are trying to make wafers as thick as possible."
After Sam explained, Qi Lei nodded to understand.
In fact, in later generations, he also read some reports about wafers and chips, and knew that this thing was particularly important in chip manufacturing.
"Then we can consider starting this technology first."
But Byron poured cold water directly, "it's useless!"
"Why is it useless?"
Byron, "the process I completed in the laboratory, can you put it into production immediately?"
Qi Lei, "..."
Byron, "industrial mass production, you... We don't have such a factory or supporting technology."
"Even if I finish the research, I can only lie in the laboratory and wait for supporting facilities within five to ten years."
“……”
"Besides, wafer manufacturing has been monopolized by several major manufacturers all over the world. Are you confident of breaking this monopoly?"
"Commercial application is a problem you should consider. Do you need me to remind you?"
"If you can't make money, what's the point of studying it?"
Qi Lei, "..."
His face turned red and he pondered for a long time. Finally Give up.
Or, let it go first.
There's no way. People are poor and short of ambition.
It is really unrealistic when the industrial chain is almost poor.
The more important reason is that Qi Lei really doesn't have so much money.
If he had a 180 billion meter knife in his hand, would I still talk to you? It's done. I'll make up for what you lack.
Unfortunately, it's still too poor!
Next, Byron listed some research lines.
For example, logic circuits. That's the world of arm and Intel. There's no advantage in killing it.
Photoresists, oxidizing materials and high-purity chemical reagents are still not something that the Japanese should start at the initial stage.
Finally, among the dozens of options related to the field of microelectronics, Byron only gave Qi Lei four options.
Or, it's Sam's four options.
"Polysilicon, plastic packaging materials, ultra-high purity gas materials, and wide band gap semiconductor materials."
Sam explained, "first of all, Byron has academic advantages in these four fields."
"Second..."
Sam explained to Qi Lei and Nan Lao one by one, "polysilicon, although the international supply competition is also very fierce."
"But after all, this is the upstream raw material of monocrystalline silicon. The supporting industrial level is also relatively low. It is easier to achieve mass production. Maybe we can find a way out."
"For plastic packaging materials and ultra-high purity gas materials, first, they are iterated more frequently, which is easy for us to surpass; second, the level of supporting industries required is low, and most of the proportion comes from the chemical industry. In this regard, China has a foundation. As long as we find a cooperative chemical plant and carry out supporting upgrading and transformation, we can achieve mass production."
"And..."
At this time, Qi Lei had guessed, "moreover, in the chemical industry, China has the advantage of manufacturing cost."
Sam: "yes! At present, Japanese manufacturers and American manufacturers supplying to the world do not have the advantage of China's labor cost."
"As long as we can do it, the cost must be lower and more competitive than them."
Qi Lei nodded and continued, "then... What's the width?"
Byron looked disgusted, "wide band gap semiconductor materials!"
Sam said, "the consideration of this option is completely different from the first three."
Qi Lei, "why is it different?"
Sam, "because this is cutting-edge technology!"
Qi Lei, "!"
In this regard, Nan Lao also knew something and explained to Qi Lei, "as long as you know, the energy of electrons in solids has discontinuous values."
"To put it bluntly, there is a gap between valence electrons and free electrons, which is called the forbidden band."
"If valence electrons want to become free electrons, they have to pay extra energy."
"The narrower the forbidden band, the lower the energy."
"For example, the band gap of silicon is 1.12 electron volts. If it is greater than 2.3 electron volts, it is called wide band gap."
At this time, Nan Lao smiled, "don't think the narrower the forbidden band is, the better. Under the trend that chips and manufacturing tools are approaching the physical limit, the narrow forbidden band is not a good thing. Sooner or later, it will restrict the development of chips."
"Therefore, wide band gap semiconductor materials have become a hot research direction in the field of microelectronics in the world."
Looking up at Byron, "Mr. Byron, what kind of wide band gap material are you good at?"
"Silicon carbide? Black silicon carbide? Green silicon carbide?"
Silicon carbide is a popular wide band gap material at present. It can be divided into black and green because of its different purity.
The purity of FA Luo silicon carbide is 95%, while the purity of green silicon carbide can reach more than 97%.
In this regard, there are also research teams in China, but they are still far from the international level.
It is said that some foreign companies have been able to realize the mass production of green silicon carbide and are in the demonstration stage.
Nan Lao is a little excited here. You know, black silicon carbide is better. If Byron can realize the mass production of green silicon carbide, he will find a treasure!
Only in this item, Qi Lei won't lose if he turns this man back.
However, what Nanlao didn't expect was that Byron sniffed at what was black and green. "I've also studied silicon carbide for some time. It's nothing strange."
Nan Lao, "??????"
I only heard Byron say, "the wide band gap material I set foot in is gallium nitride."
“！！！”
Nan Laoteng stood up, and Qi Lei was also surprised.
"Gallium nitride? Does the name sound so familiar?"
I can't remember where I learned about it, but Qi Lei can be sure that this thing should be great.
……
It's really awesome!
Gallium nitride, even in that time and space 20 years later, is still the frontier and hot direction of global semiconductor research, known as the third generation semiconductor material.
With wide band gap, high thermal conductivity and strong atomic bonds, it has high chemical stability, melting point of 1700 degrees and is hardly corroded by any acid.
Moreover, it has extremely strong high irradiation ability.
Because of these characteristics, it has a very broad prospect in the application of optoelectronics, high temperature high power rail devices and high frequency microwave devices.
Let's put it this way. Qi Lei may not know that in 1989, three Japanese scholars won the 2014 Nobel Prize in physics just by making a blue emitting high-performance diode with gallium nitride.
In the current year of 2002, gallium nitride should mainly be LED light-emitting devices.
As for later generations, the most well-known thing is that it is almost full.
After listening to the popular science of Nan Lao and Byron, Qi Lei remembered a sentence, "gallium nitride is also an important raw material for the manufacture of purple laser diodes."
Purple light?
Asmai?
"Just study this thing!!"
"For the remaining three, you can decide which one you major first. I want this thing!!"
Byron was stunned. To tell the truth, the most unreliable thing was gallium nitride.
For the other three options, Byron is confident that it can be put into production in a very short time.
But gallium nitride?
Maybe after twenty years of research and spending a lot of money, I'll just drift away.
What is called cutting-edge technology is what the characteristics of this thing are, how to mass produce and how to realize commercial value.
Its potential has not been fully tapped. No one knows what the final result of this research will be.
This is just like the later research on graphene. The material performance is simply invincible. Twenty years later, we are still exploring the high-quality material characteristics of graphene and constantly surprising mankind.
Once low-cost mass production is realized, human application of science and technology is a revolution.
However, no one knows when this thing can achieve low-cost mass production.
Maybe ten years, maybe a hundred years.
Generally speaking, gallium nitride is the same. It can be prepared in the laboratory, and mass production is not impossible, but without considering the cost.
As for mass production of low-cost devices, at least in 2002, it seems far away.
Even when other applications will be studied, no one can give a specific timetable.
To be honest, this research direction is very risky.
Why is Qi Lei, a profiteer, so determined to have this thing?
As a result, Qi Lei said, "Byron, I don't want any mass-produced gallium nitride substrate or LED."
"These can be released first. Let the Japanese play by themselves first. I just want one thing!"
Byron is a little confused. You don't know anything. Why are you so determined all of a sudden?
"What do you want?"
"Extreme violet laser!"
Byron: "
This thing? I'm not very good at it!
Byron is not God. He is just a chemist. He is good at studying materials, but gallium nitride is only a part of laser diodes.
That's the category of physics.
But I can't say that. Can't I say that? Don't kill Byron.
What if I can't do it?
There's only one reason.
"Qi, you really don't understand anything. This subject needs a whole team. I can't do it alone."
Look, isn't that a prevarication?
As a result, "who do you want? I'll find it for you!"
Byron, "..."
Chum!
Forget, this is not a matter in China.
How can this be done?
I had to harden my head, "let me think."
Sam frowned and pondered, "extreme violet laser?"
We're making chips, making this thing... There's only one place to use it!
Look up and try, "do you want to take the route of lithography?"
Qi Lei, "hey hey, guess?"
……
。
[monthly ticket slot]
[recommended slot]
The plot is a little concentrated. Isn't it boring?
It's almost over.
That's all for today. If there's nothing to do tomorrow, make it up at the third watch.
From which direction? There is a lot of knowledge here.Byron couldn't help laughing at Qi Lei's thinking."Don't think about it. You don't understand it at all. What research direction can you find by intuition?"Qi Lei looked up and finally understood why Warren always had the impulse to strangle Byron. This guy really didn't like what he said.But you can't be more serious with him.First of all, the grandson has too much skill, so we have to use him.Second, he really doesn't have a bad heart. He simply doesn't care about other people's feelings. In fact, he is a good person.At this point, Byron said, "do you need me to give you some professional advice? Of course, Mr. Nan can discuss it together."Qi Lei naturally said nothing, "say!"However, the first sentence of Byron made Qi Lei a little crazy."In fact, you don't have many choices."Byron looked serious. "These days, in addition to preparing for the laboratory, I have also learned about your microelectronics industry in China in detail."Before he finished, Qi Lei interrupted, "now it's China!""All right!" Byron smiled bitterly.It's really China, because he has decided to join Chinese nationality and is going through relevant formalities."Our... Microelectronics industry is not developing well," he continuedQi Lei, "..."Byron, "it's almost blank! If I had known this was the case, maybe I would reconsider my decision to come to China!"Qi Lei, "..."Special!! I can't stand it!Byron, "Qi, please don't get me wrong. I'm not sarcastic, but expounding the facts."Qi Lei shrugged, "that's why we need you."Byron nodded. "This is really the driving force that drives me into this career! Qi, you can't understand. I'm very excited now." Qi Leixin said, what's your routine? Is it a little fast? Just finished reconsidering the decision to come to China, which is exciting again??But Sam couldn't listen. "He meant that if he had known this, he would have come to China long ago without your invitation!""Ah?"Sam couldn't laugh or cry. "This madman, when he was in England, longed for a piece of industrial white paper for him to give full play."WellByron, "Sam, shut up. I'm serious."Sam, "..."Byron is really not funny, and he is not in the mood to beat around the bush with these dirty people, "Qi, in fact, this is an advantage!"Qi Lei, "what do you say?"Byron, "it is precisely because China's microelectronics field and semiconductor industry started late that there is no industry at all, so it is more conducive for us to establish a complete industry."Qi Lei listened and blurted out, "late development advantage!""Late mover advantage?"Byron and Sam both raised eyebrows. The word is very accurate.Byron, "I can't wait to complete the construction of this industrial chain.""Oh, shit, we lack Warren! That guy is best at this. He shouldn't sleep in arm."Sam said, "it's the same with Qi Lei. He's more cunning than Warren."Byron, "no! He's cunning, but he doesn't understand!""Cough!!" Qi Lei couldn't stand it again. "Let's get down to business!"Looking at Byron, "so you want to build an industrial chain?"Byron, "of course, but only if you have money, a lot of money!"Qi Lei, "it's not something you worry about."As long as Byron is willing to do it, I'll pay for it.It's just that Qi Lei doesn't understand. Since he has the advantage of late development, you also think it's a good thing. How can he choose not many?Byron's explanation is, "there are really few choices, just take those Microelectronic Materials and devices I just mentioned!"Byron gave Qi Lei examples one by one."For example, monocrystalline silicon wafer.""It is not difficult for me to prepare high-purity monocrystalline silicon. Even for large-diameter wafers, I am confident to complete the process design of industrial manufacturing in the laboratory."Sam was afraid that Qi Lei didn't understand and explained, "the preparation of high-purity monocrystalline silicon belongs to the difficulty of the semiconductor industry, but that's the case. The real difficulty is the large diameter.""Because the chip is etched on the chip, small blocks are arranged in parallel one by one, and a chip can etch many chips at the same time.""However, the chip is round and the chip is square, which will inevitably lead to a waste of raw materials at the edge.""This means that the larger the diameter of the chip, the lower the waste rate and the lower the cost of chip manufacturing!""Therefore, wafer suppliers all over the world are trying to make wafers as thick as possible."After Sam explained, Qi Lei nodded to understand.In fact, in later generations, he also read some reports about wafers and chips, and knew that this thing was particularly important in chip manufacturing."Then we can consider starting this technology first."But Byron poured cold water directly, "it's useless!""Why is it useless?"Byron, "the process I completed in the laboratory, can you put it into production immediately?"Qi Lei, "..."Byron, "industrial mass production, you... We don't have such a factory or supporting technology.""Even if I finish the research, I can only lie in the laboratory and wait for supporting facilities within five to ten years.""Besides, wafer manufacturing has been monopolized by several major manufacturers all over the world. Are you confident of breaking this monopoly?""Commercial application is a problem you should consider. Do you need me to remind you?""If you can't make money, what's the point of studying it?"Qi Lei, "..."His face turned red and he pondered for a long time. Finally Give up.Or, let it go first.There's no way. People are poor and short of ambition.It is really unrealistic when the industrial chain is almost poor.The more important reason is that Qi Lei really doesn't have so much money.If he had a 180 billion meter knife in his hand, would I still talk to you? It's done. I'll make up for what you lack.Unfortunately, it's still too poor!Next, Byron listed some research lines.For example, logic circuits. That's the world of arm and Intel. There's no advantage in killing it.Photoresists, oxidizing materials and high-purity chemical reagents are still not something that the Japanese should start at the initial stage.Finally, among the dozens of options related to the field of microelectronics, Byron only gave Qi Lei four options.Or, it's Sam's four options."Polysilicon, plastic packaging materials, ultra-high purity gas materials, and wide band gap semiconductor materials."Sam explained, "first of all, Byron has academic advantages in these four fields.""Second..."Sam explained to Qi Lei and Nan Lao one by one, "polysilicon, although the international supply competition is also very fierce.""But after all, this is the upstream raw material of monocrystalline silicon. The supporting industrial level is also relatively low. It is easier to achieve mass production. Maybe we can find a way out.""For plastic packaging materials and ultra-high purity gas materials, first, they are iterated more frequently, which is easy for us to surpass; second, the level of supporting industries required is low, and most of the proportion comes from the chemical industry. In this regard, China has a foundation. As long as we find a cooperative chemical plant and carry out supporting upgrading and transformation, we can achieve mass production.""And..."At this time, Qi Lei had guessed, "moreover, in the chemical industry, China has the advantage of manufacturing cost."Sam: "yes! At present, Japanese manufacturers and American manufacturers supplying to the world do not have the advantage of China's labor cost.""As long as we can do it, the cost must be lower and more competitive than them."Qi Lei nodded and continued, "then... What's the width?"Byron looked disgusted, "wide band gap semiconductor materials!"Sam said, "the consideration of this option is completely different from the first three."Qi Lei, "why is it different?"Sam, "because this is cutting-edge technology!"Qi Lei, "!"In this regard, Nan Lao also knew something and explained to Qi Lei, "as long as you know, the energy of electrons in solids has discontinuous values.""To put it bluntly, there is a gap between valence electrons and free electrons, which is called the forbidden band.""If valence electrons want to become free electrons, they have to pay extra energy.""The narrower the forbidden band, the lower the energy.""For example, the band gap of silicon is 1.12 electron volts. If it is greater than 2.3 electron volts, it is called wide band gap."At this time, Nan Lao smiled, "don't think the narrower the forbidden band is, the better. Under the trend that chips and manufacturing tools are approaching the physical limit, the narrow forbidden band is not a good thing. Sooner or later, it will restrict the development of chips.""Therefore, wide band gap semiconductor materials have become a hot research direction in the field of microelectronics in the world."Looking up at Byron, "Mr. Byron, what kind of wide band gap material are you good at?""Silicon carbide? Black silicon carbide? Green silicon carbide?"Silicon carbide is a popular wide band gap material at present. It can be divided into black and green because of its different purity.The purity of FA Luo silicon carbide is 95%, while the purity of green silicon carbide can reach more than 97%.In this regard, there are also research teams in China, but they are still far from the international level.It is said that some foreign companies have been able to realize the mass production of green silicon carbide and are in the demonstration stage.Nan Lao is a little excited here. You know, black silicon carbide is better. If Byron can realize the mass production of green silicon carbide, he will find a treasure!Only in this item, Qi Lei won't lose if he turns this man back.However, what Nanlao didn't expect was that Byron sniffed at what was black and green. "I've also studied silicon carbide for some time. It's nothing strange."Nan Lao, "??????"I only heard Byron say, "the wide band gap material I set foot in is gallium nitride."Nan Laoteng stood up, and Qi Lei was also surprised."Gallium nitride? Does the name sound so familiar?"I can't remember where I learned about it, but Qi Lei can be sure that this thing should be great.It's really awesome!Gallium nitride, even in that time and space 20 years later, is still the frontier and hot direction of global semiconductor research, known as the third generation semiconductor material.With wide band gap, high thermal conductivity and strong atomic bonds, it has high chemical stability, melting point of 1700 degrees and is hardly corroded by any acid.Moreover, it has extremely strong high irradiation ability.Because of these characteristics, it has a very broad prospect in the application of optoelectronics, high temperature high power rail devices and high frequency microwave devices.Let's put it this way. Qi Lei may not know that in 1989, three Japanese scholars won the 2014 Nobel Prize in physics just by making a blue emitting high-performance diode with gallium nitride.In the current year of 2002, gallium nitride should mainly be LED light-emitting devices.As for later generations, the most well-known thing is that it is almost full.After listening to the popular science of Nan Lao and Byron, Qi Lei remembered a sentence, "gallium nitride is also an important raw material for the manufacture of purple laser diodes."Purple light?Asmai?"Just study this thing!!""For the remaining three, you can decide which one you major first. I want this thing!!"Byron was stunned. To tell the truth, the most unreliable thing was gallium nitride.For the other three options, Byron is confident that it can be put into production in a very short time.But gallium nitride?Maybe after twenty years of research and spending a lot of money, I'll just drift away.What is called cutting-edge technology is what the characteristics of this thing are, how to mass produce and how to realize commercial value.Its potential has not been fully tapped. No one knows what the final result of this research will be.This is just like the later research on graphene. The material performance is simply invincible. Twenty years later, we are still exploring the high-quality material characteristics of graphene and constantly surprising mankind.Once low-cost mass production is realized, human application of science and technology is a revolution.However, no one knows when this thing can achieve low-cost mass production.Maybe ten years, maybe a hundred years.Generally speaking, gallium nitride is the same. It can be prepared in the laboratory, and mass production is not impossible, but without considering the cost.As for mass production of low-cost devices, at least in 2002, it seems far away.Even when other applications will be studied, no one can give a specific timetable.To be honest, this research direction is very risky.Why is Qi Lei, a profiteer, so determined to have this thing?As a result, Qi Lei said, "Byron, I don't want any mass-produced gallium nitride substrate or LED.""These can be released first. Let the Japanese play by themselves first. I just want one thing!"Byron is a little confused. You don't know anything. Why are you so determined all of a sudden?"What do you want?""Extreme violet laser!"Byron: "This thing? I'm not very good at it!Byron is not God. He is just a chemist. He is good at studying materials, but gallium nitride is only a part of laser diodes.That's the category of physics.But I can't say that. Can't I say that? Don't kill Byron.What if I can't do it?There's only one reason."Qi, you really don't understand anything. This subject needs a whole team. I can't do it alone."Look, isn't that a prevarication?As a result, "who do you want? I'll find it for you!"Byron, "..."Chum!Forget, this is not a matter in China.How can this be done?I had to harden my head, "let me think."Sam frowned and pondered, "extreme violet laser?"We're making chips, making this thing... There's only one place to use it!Look up and try, "do you want to take the route of lithography?"Qi Lei, "hey hey, guess?"monthly ticket slotrecommended slotThe plot is a little concentrated. Isn't it boring?It's almost over.That's all for today. If there's nothing to do tomorrow, make it up at the third watch.
