Chapter 399

In chip manufacturing, what process is a big technical index. For example, in later generations, the process has developed to 10 nm, and even 1 nm has been tried in the laboratory. The smaller the value, the more valuable it is.

What's the meaning of this?

CPU manufacturing process refers to processing various circuits and electronic components, manufacturing wires and connecting various components in the process of producing CPU. The nanometer number of manufacturing process refers to the distance between circuits in IC. (some people also say that the width of this wire, or the width of the most basic functional unit gate circuit on the chip.).

In short, the smaller the value, the denser the internal circuits, which means that IC with the same size and area can have higher density and more complex circuit design. At the same time, the most expensive is the wafer. If more circuits are integrated, it also means that the cost can be reduced.

The development and progress of microelectronic technology mainly depends on the continuous improvement of process technology. Since 1971, the chip manufacturing process has experienced 10 microns, 6 microns, 3 microns, 1.5 microns, 1 micron, 800 nm, 600 nm... Until the future 10 nm technology.

Now, in Qin Guan's impression, I think nano is the basic unit. Who could have thought that his question made old Wang think he was coming to humiliate himself.

"Our current process is 10 microns," said Wang. "If you say nano, it's 10000 nanometers."

10 μ m, the technology level achieved in foreign countries in 71 years. At that time, the first generation cpu4004 of Intel used 10 μ M technology. Now, nearly ten years have passed, and the process level of 10 μ m is still adopted in China.

At this process level, the chips designed and manufactured can not have great development prospects.

Qin Guan frowned. At this moment, he had entered the brain system.

Start, machine graveyard!

If you want to improve the domestic processing level, you need to exchange industrial mother machines, that is, machine tools!

After unlocking the machine tool cemetery, Qin Guan introduced high-precision CNC machine tools and completed the processing of the most precise high-pressure oil pump in the heavy truck engine. Now, Qin Guan is looking for a machine tool for chip production.

It is called machine tool, which is a general term. In the production of CPU, etching machine and lithography machine are the most important parts. These are also machine tools in a broad sense.

In the process of chip processing, lithography machine setting out, etching machine construction and cleaning machine cleaning. Then it is repeated dozens of times. Generally, it takes about 500 processes to complete the chip, that is, the integrated circuit of the transistor. (of course, there are coating processes, so I won't say any more.)

In later generations, this kind of machine can also be produced in China. Although it can not be compared with the advanced level of foreign countries, it can reach a relatively high level. For example, the "extreme ultraviolet" technology of Changchun Institute of Optics and mechanics has made a breakthrough, which can reach about 22-32 NM.

It is impossible for this level of lithography machine to enter the cemetery. In the 1990s, for example, the most representative 80486 chip began to use the 1 micron process, and later used the 0.6 micron process. This 1 micron process has completely fallen behind in future generations. Even the lowest end chips began to have tens of nanometers of technology. Therefore, the previous equipment has been eliminated.

Compared with later generations, it is backward, but compared with this era, if you use 1 micron technology, it will definitely be a bunker. More than ten years ahead of foreign countries.

Hurry!

ASML is the leader of lithography machine, but Qin Guan doesn't want to use foreign lithography machine.

Yes, this is the pride, honor and Disgrace in his heart, or the small family spirit.

In later generations, seeing that the chip industry was blocked, China began independent research and development. To make a breakthrough, when the domestic chip manufacturing process had reached the level of 20 nm, suddenly, the foreign monopoly was lifted.

The ASML lithography manufacturer controlled by Yingguo suddenly declared that when did we monopolize Han? We have never said that. Now, we can provide you with!

Therefore, the lithography machine of 7 nanotechnology was transported to the state of Han and sold to the chip company of the state of Han. The intention behind this is too obvious.

This is not the first time that foreign countries have done this kind of thing. If you don't have it, you will be subject to a technical blockade. You can only spend a lot of money to buy finished products. When you are about to develop it, you will not be blockaded and export slightly advanced products to you.

In this way, it will block your way of self-study.

Your self-developed level is only 20 nm. I export 7 nm to you, and your immediately lags behind. At the same time, you have to spend a lot of research funds. Excessive from 20 nm to 7 nm also requires a huge investment. In this way, the comprador class of Han will shout for the good use of imports, and then block the road of domestic self-developed again.

Foreigners can do such things easily. In short, they want to block your self-study road. You already have 7 nm and throw away 20 nm. Later, when foreign technology makes further progress and reaches 1 nm or even 0.1 nm, China lags behind again.

Qin Guan doesn't want to use foreign ones. He wanders around the machine tool cemetery in China. Anyway, when he enters the system, the time outside doesn't pass.

Finally, he found a prototype in an empty corner.

Lithography No. 1, 1 micron process, the lithography machine product prototype developed by Hanguo microelectronics equipment Co., Ltd. in 2006, because of its backward performance, after being developed, it only existed as a prototype and began to develop more advanced lithography machines, which finally reached the level of 90 nm.

At this time, the lithography machine was quietly in a corner of the cemetery, witnessing the development and changes of microelectronic technology in the Han country.

Instead of exchanging immediately, Qin Guan left the cemetery.

At this time, the expression on Wang Lao's face is still very ugly. Are you here to play tricks on people?

Seeing that old Wang was unhappy, old Zhu wanted to dissuade him. Qin Guan definitely didn't mean that. He must have been unintentional. Besides, I don't understand what you said.

"I can improve our 10 micron production equipment to 1 micron production equipment." Qin Guan said: "with this new process, our current 4K memory can directly double the performance."

"Hum, I don't have time to talk to you. It's a waste of time." old Wang looked at Qin Guan in front of him and didn't believe it at all.

10 microns to 1 micron is a zero, but even Eagle country has used it for more than 10 years! From 10 microns in 71 to 1 micron in the mid-1980s.

Qin Guan, where did you come from? I've never seen him before.

The more special the industry, the narrower the circle. For example, Wang Lao, a leading chip developer all over the world, knows him, but he never knows Qin Guan.