Rebirth of the 80s New Farmer

"All of you present here have tasks at the master level in the capital. I am very honored to be able to toast with you today. I am the youngest here, so I will do it first as a respect."

Wan Feng couldn't drink beer on such an occasion, since one or two small wine glasses are not big anyway.

Wan Feng drank a glass first, and the rest of the people at the wine table also drank a glass.

"I don't know everyone's drinking capacity. I won't persuade you to drink after this drink, and everyone, don't be offended, feel free! Although I don't persuade everyone, don't be polite, there is plenty of wine, come! Eat vegetables!"

After the opening wine is finished, the banquet officially begins.

Chatting all over the world while eating.

Because people in the capital city live at the foot of the imperial city, they are much more interested in current affairs than people from other places, and most of their chats are about international affairs.

Of course, there were also some domestic issues at that time.

The capital city in [-] was not considered to be calm, but also undercurrents.

Wan Feng saw that this was about to get involved, so he hurried out to smooth things over.

"That's all about political affairs, let's not talk about state affairs next, let's talk about something else."

What do you mean Wan Feng is about to start.

At this time, I have already drunk three rounds, and it's time to talk about something serious.

Wan Feng turned to Wan Shouwu: "My uncle, have you considered what we discussed yesterday?"

"You kid is impatient, don't you know it's Sunday, who should I discuss with since it's a holiday?"

"That's right! I forgot it's Sunday."

Then he turned to Mi Guangnan: "Uncle Mi! I don't know if I, Uncle Wan, introduced me to you. No matter whether he introduced me or not, I will introduce myself. My name is Wan Feng, and I belonged to the same family as Uncle Wan 500 years ago. I am a self-employed man, right?" , nice to meet you today."

While speaking, Wan Feng stretched out his hand carefully.

He was afraid that Mi Guangnan would be embarrassed if he didn't reach out.

Mi Guangnan was not as small-bellied as Wan Feng thought, he reached out and shook Wan Feng generously.

"Xiao Wan and I introduced you, saying that you build motorcycles and learning machines, it's amazing! It's amazing!"

"It's just a job! Uncle Wan said that you are making computers. To be honest, I also think that computers will be an indispensable thing in people's lives in the future. We also want to make computers."

"Oh! You also want to make computers? Do assembly?"

Wan Feng shook his head: "We don't want to make the whole machine, not for the time being. We want to make some of the components, such as chip storage."

"You guys are going to make chips!" Mi Guangnan's voice raised a decibel.

"Yes! I think making chips will make a lot of money in the future."

Mi Guangnan smiled and shook his head while laughing: "Young man, the chip is the heart of the computer. Now the technology is in the hands of foreigners such as IBM, Motorola and Intel. It is difficult to do it."

"I know it's hard! But it's hard to do."

"That's something that millions of dollars of investment may not necessarily do well."

If millions of dollars can be done well, Wan Feng will go to the street to kowtow and burn incense. He can prepare hundreds of millions of dollars, and if the talent is enough, he will spend it.

Chapter 1505 It's a Good Thing to Fall Down

After pondering for a while, Mi Guangnan asked Wan Feng a question: "Boy, since you are going to make a chip, let me ask you, can you explain clearly what a chip is?"

If the answer to this question can be described in an allegorical way, the old sheep will be frozen to death in June -- it's a long story.

"In one sentence, a chip is a microcircuit."

Mi Guangnan nodded: "Yes, then can you explain in detail?"

How does this feel like facing an exam?

"When you talk about a chip, you can't talk about an integrated circuit. The invention of the integrated circuit in the 50s greatly improved the efficiency of discrete transistors. A chip appeared when countless discrete microtransistors were integrated into a small pure silicon wafer. It is similar to discrete transistors. Compared with two huge advantages, one is cost and the other is performance.”

Mi Guangnan showed interest: "Go ahead."

"The cost is low cost. This is because the chip prints all components as a unit through photolithography technology, instead of making only one transistor at a time, which greatly reduces the material cost of making a single transistor."

Mi Guangnan nodded.

"The high performance is due to the fast switching of the components, which consumes less energy and produces more efficiency."

"Although the explanation is a bit general, it is roughly correct. I didn't expect you to actually do research on chips. So can you tell me about the chip processing process?"

Wan Feng didn't quite understand this question before. It's not that he didn't read it on the Internet in his last life, but it was too boring and meaningless. He just glanced at it and didn't remember much.

But recently, when I was chatting with Gu Hongzhong and Qin Guanghui when I was free, Gu Hongzhong once used a saying of building a house to let Wan Feng remember the chip production process.

"We know that the steps to build a house are the main steps of laying the foundation, laying the walls, and putting up beams and capping the roof, right?"

Mi Guangnan and Wan Shouwu nodded.

"If making a chip is likened to building a house, the first step is to lay the foundation for the chip. After many experiments in the early years, foreign countries have determined that the best material for making the foundation of the chip is a wafer, that is, a single crystal silicon sheet. It is the entire building. The quality of the foundation directly determines the quality of the superstructure.”

"continue!"

"Don't look at the high-end appearance of monocrystalline silicon wafers, but it is not noble at all. In common terms, it is sand, and in elegant terms, it is called quartz sand. There is also a large amount of silicon in cement. The single crystal silicon used to make chips Silicon wafers have very high requirements on purity. Even if the purity cannot reach 90.00%, it must reach 50%. Our country has produced silicon wafers for more than 30 years since the first silicon wafer was produced in the late [-]s. Yes, this can meet our needs.”

Seeing that the people at the wine table were listening intently, Wan Feng took a sip of the drink to moisten his throat and continued.

"It doesn't mean that there are no other materials that can be substituted except for monocrystalline silicon, and gallium arsenide can also be used. Our country seems to have successfully manufactured it in the 60s."

"In [-], a factory in Tianjing produced gallium arsenide."

"Now that we have the materials, we start to lay the foundation. These pure silicon are made into silicon rods, which become the carrier of quartz semiconductors for manufacturing integrated circuits. Slicing them is the wafers required for chip manufacturing. The thinner the wafer , the larger the diameter, the lower the production cost, but the higher the requirements for the process."

Mi Guangnan couldn't help but nodded.

Originally, he was just asking casually, just to see how much oil and water was in the belly of this little guy who was talking about making chips, but he didn't expect this guy to talk like a river.

"With the foundation, we officially started to build the building. From smearing to development, etching, drying and manufacturing, the process is very complicated and requires extremely high craftsmanship. We are now lagging behind foreign countries at this stage."

Mi Guangnan's face was slightly heavy.

"After this stage, grid-shaped grains are formed on the wafer. The electrical characteristics of each grain are tested by needle testing. The wafer is fixed after the manufacturing is completed, the pins are bound, and it is manufactured according to the requirements. Various packaging forms, and the house is built."

"Your explanation is very interesting. After listening to your explanation, it seems that you didn't make a decision to make a chip because of your blood. Obviously, you have done enough homework. I don't know how much you know about the current chip industry? What about the future of the chip? How much prospect is there for development?"

"The 386 is the mainstream chip in the world now, and the 486 is next... It's the end of April today, and Intel's 80486 has been released, right?"