Super Weapon Swap System

In fact, it is not too late to start the electronic technology in Han Dynasty.

That year, under the personal leadership of Premier Zhou, the state of Han formulated a 12-year long-term plan for scientific and technological development, and semiconductor technology was listed as one of the four major scientific research priorities at that time. The relevant departments of the Central Committee have decided that famous scholars such as Huang Kun, Xie Xide and Wang Shouwu will make a surprise attack on talent training and pioneering research.

These three elders are the leaders of the Han country in the field of microelectronics. They came back from abroad and contributed their whole life to the semiconductor industry of the Han country.

The first two are mainly engaged in theoretical research, while Wang Lao is mainly engaged in industrial production.

Although Wang Lao's work in yingguoxue mainly focused on physics itself, he knew the importance of semiconductor work, resolutely interrupted other scientific research projects and devoted himself to semiconductor research. He established the first semiconductor research laboratory in China at the Institute of Applied Physics of the Chinese Academy of Sciences, focusing first on the preparation of germanium, the most basic material in transistors.

While grasping the purification of germanium materials, he personally led the design and manufacture of the first single crystal furnace for drawing semiconductor germanium materials in China, and successfully drew the first germanium single crystal in China at the end of 1957. From the end of November of the same year to the beginning of the next year, Wang Shouwu cooperated with his colleagues to successfully develop the first batch of germanium alloy crystal tubes in China.

In the second year, the first silicon single crystal in Han Dynasty came out in.

These are all in the Research Institute. How to turn these high-tech research into practical use? Under the organization and leadership of Wang Lao, in 58 years, 1109 plant of the Chinese Academy of Sciences, the earliest transistor production plant in Han, was founded and began to engage in the mass production of germanium high-frequency transistors.

Later, entrusted by the State Science and Technology Commission and the Chinese Academy of Sciences, Wang Lao began to prepare for the establishment of the semiconductor Institute of the Chinese Academy of Sciences. At the same time, he was appointed as the first deputy director of the Institute, fully responsible for the management of scientific research business and the preparation of branch discipline development. Later, he did a lot of work in testing equipment and unified standards, especially in the research of the first GaAs laser in China, and established a semiconductor testing center.

The development of electronic technology, from electron tube to transistor, and then from transistor to integrated circuit, and integrated circuit, from small and medium-sized integrated circuit to large-scale integrated circuit.

In the Han Dynasty, by 72 years, the production of large-scale integrated circuits had been realized.

Considering the background of this era, we can better understand the hardships of scientific and technological personnel at that time. There was no time during the day and they could only do research at night. However, they never gave up.

In October last year, the Chinese Academy of Sciences once again asked Mr. Wang to be fully responsible for the research of 4KB MOS random access memory. This is a large-scale integrated circuit, which needs to be in less than 4 × An electronic circuit composed of more than 11000 transistors, resistors, capacitors and other components is fabricated on a 4mm square unit silicon wafer through more than 40 processes. If the intact rate of a single process reaches 95%, the final intact rate of the chip is only 13%. Therefore, it is very difficult to make samples and have a certain yield.

(Hua Xiong briefly explains that this MOS random access memory sounds awkward. In fact, it also has a common name, memory! It is used to temporarily store various data required by the CPU. In later generations, the memory is often several GB, but now it is only K, 1000000 times worse. However, it is only 79 years. In this era, 4KB memory is very powerful.)

At that time, Han could also produce its own memory. However, the memory technology was constantly developing and needed continuous investment. For various reasons, there were only a few memory manufacturers in the world, so they could have an absolute say in the price. If I want to raise the price, I will raise the price.

When Qin Guan and his companions entered the semiconductor Institute of the Chinese Academy of Sciences, they did not see Wang Lao.

Although it's still an annual holiday, the people here don't rest for the new year. After receiving the development task, they have been busy all the time.

Everyone has their own tasks. Now they are mainly engaged in chip design tasks and process research tasks, with great work intensity. Moreover, in future generations, chip design is mainly carried out on computers. First, Design HDL code. After it is correct, put it into electronic design automation tool (EDA tool) to let the computer convert HDL code into logic circuit, Determine whether the design drawing of the logic gate meets the specifications and modify it until the function is correct, and then the circuit diagram can be drawn.

Everything is assisted by a computer.

But now, these electronic development tools of later generations have not appeared. Even if they do, they are tightly blocked by large companies. Therefore, the personnel of the Design Institute here give full play to their advantages and design on paper.

When several people walked around and looked around like Grandma Liu in the Grand View Garden, they suddenly found an empty and large design room.

Inside, on the ground, there is a huge white paper, which almost occupies the whole room. At this time, this huge white paper is densely covered with various circuit diagrams, which makes people look like a headache.

Some technical experts, wearing socks, are walking around on white paper to discuss whether each circuit is correct and where it needs to be modified.

At this time, the weather is still very cold. Even if the radiator in the room is hot, it is not warm on the ground. The floor is cold. They walk and study like this.

Among them, an old man with white hair looks so conspicuous.

"No, it should output 0 here, but according to our inference just now, it outputs 1 instead. The logic here is wrong and must be modified," the old man said.

"However, if it is modified here, the following logical branches will be affected."

"Then revise them all!"

Suddenly, the person who just answered cried. In this case, it's another big project. The drawings on the back quarter of the area here need to be modified!

"We can't make any mistakes in making chips. If we find mistakes only after production, it will cause huge waste." the old man said and looked up at the outside: "Lao Zhu, why are you here?"

"Let's have a look. This is factory director Qin. This is Lao Tu and Lao song." old Zhu raised his hand and introduced him to old Wang opposite.

"Well, I'm very busy. I only have ten minutes at most." Wang looked at his watch and said to Zhu.

Of course, they come only when they have something to do, but they can't affect their work. Mr. Wang has a very heavy sense of time. There is a problem with the logic diagram here, which needs to be modified. Then, there are technological problems to study, and even go to the subordinate 1109 Electronics factory for coordination. He has a lot to do.

"How many nanometers of technology can we do now?" Qin Guan suddenly asked.

Hearing this idiot's question, old Wang's face changed. Are you a teaser invited by a monkey?