After the annexation of Huajing in China, Fanhan Group has built a chip production line with 0.35 micron process so far.

This production line is not only in the country, but also in the world, which is the most advanced chip production line at present. Of course, when the 0.25 micron line produced by Pan Han Group for Intel is put into production, it will not be the most advanced. But even so, it is still not wrong to say that it is the most advanced in China and Asia.

Zhou Shuo dared to directly tell Wang Zhongyang the principle of reducing the response time of the driver IC, that is, no one else in China can do this technology except him.

The reason is very simple, the liquid crystal display driver IC on the market only needs to be responsible for deflecting the liquid crystal molecules in one direction. However, the technology mentioned by Zhou Shuo is equivalent to more than doubling the complexity of the driver IC.

In the past, it was possible to calculate the deflection angle of the liquid crystal molecule based on the display signal, and then adjust the voltage to supply power to the conductive glass to generate a magnetic field.

However, with the high-voltage drive technology of the Panhan Group, the number of calculations that needed to be calculated immediately increased by more than three or four times. First, the driver IC needs to calculate the voltage that will deflect the liquid crystal molecules into place in 5ms, and then calculate how much voltage is needed to offset the margin after the deflection is in place. The smoothing process of canceling the voltage until the liquid crystal molecules stop moving, also requires the corresponding time to be calculated in order to convert the magnetic field in advance......

This means that what used to take 40 ms to compute now needs to be done in 2 to 3 ms. Such IC design capabilities, chip manufacturing capabilities. Looking at China, there is really no second company that can provide it.

This is where Zhou Shuo's confidence lies in daring to speak out, and he has core technology. It's just that you can be so capricious!

Even if Wang Zhongyang had any plans in his heart, he had to write a word of service.

"I'm now starting to work with us. There's something to look forward to. Wang Zhongyang exclaimed: "It is said that the lithography machine is the crown of a country's industry, and I always feel that such a high-level equipment must be far away from us." I really didn't expect that just the progress of the manufacturing process will bring such a big change to the liquid crystal display technology......"

"Mr. Wang doesn't need to rush to conclusions." Zhou Shuo waved his hand and said with a confident smile: "Let's continue to look at our other two techniques." ”

"Good, good!" Wang Zhongyang nodded violently and said seriously: "As long as I can solve one or two application technologies in LCD production in the future, I will apply for funds from my superiors when I go back, and BOE will also cooperate with Fanhan Group when it smashes pots and sells iron." On the production line of LCD displays! ”

Zhou Shuo smiled, opened the door of the real room without saying a word, and stretched out his hand to invite: "Next, please ask Mr. Wang to take a look at the ITO lithography machine we developed, which is the core equipment of the LCD production line." ”

Wang Zhongyang was not much surprised by this, and immediately nodded: "I have long heard that Fanhan Group is already the top enterprise in China in terms of lithography machine technology. The technology of ITO lithography machine is not more difficult than that of monocrystalline silicon lithography machine, and I believe that you will be able to develop it. ”

ITO stands for conductive glass. Of course, glass itself does not conduct electricity. Instead, a layer of nano-indium tin film is coated on the substrate glass by means of guò magnetic splashing evaporation. ITO is an abbreviation for IndiumTinOxides, a conductive transparent metal oxide.

As for why we need to use lithography machines to deal with ITO, this is the basic principle of liquid crystal display. Liquid crystal molecules can deflect light. Precise control of the angle of liquid crystal molecules requires the use of magnetic fields. It is this indium tin coating that generates the magnetic field. The lithography machine processes the indium tin coating into an integrated circuit, and accurately controls the switch of the circuit and the voltage and current to operate the display content.

If the LCD is viewed very carefully with the human eye. In addition to the retina screen, you can see the most basic display unit - pixels.

These pixels vary depending on how they are displayed. It can also be divided into three or six more basic display color blocks. These three or six color blocks are standard RGB colors. Typically, there are groups of three RGB patches, or two groups of six RGB patches arranged on top and bottom.

In the end, the magnetic field of the integrated circuit formed by the indium tin layer lithographic has to control the 16777216 colors that these color blocks finally combine......

Therefore, ITO lithography is regarded as the core technology of LCD panels, in fact, it is not impossible.

The most critical technical index resolution of the LCD display is actually to see how small the pixel unit can be carved out on the screen size ITO of the lithography machine of the manufacturer.

In this regard, the process indicators of liquid crystal displays will always lag behind the chip production process. Wang Zhongyang can be said to be full of confidence in the Panhan Group, which can produce chip lithography machines.

The ITO lithography machine also needs to work in a 1K-level clean room, and the clean room of this test building is arranged in the basement, and Zhou Shuo and Huang Shen take Wang Zhongyang to the elevator and go straight down to the third floor underground.

Through a complete set of familiar dust removal treatments, Zhou Shuo and the three of them finally entered the clean room where the ITO lithography machine worked. Due to the nature of the clean room here, the clean room design is not large. It's just a small real yàn room about 100 square meters.

But even so, Wang Zhongyang, who still watched it, was amazed.

"This is a Class 1K cleanroom?" Wang Zhongyang was wearing a dustproof suit, looking up and down with some curiosity.

Although BOE's situation has improved in the past two years, it has climbed back from the brink of bankruptcy. But if you really want to say how much money you have in your hands, it is impossible for you to have such a wealth as Fanhan Group.

When Wang Zhongyang set up the LCD pre-research team, he also planned to go to a 1K-level clean room. But after several inquiries, his idea was dispelled.

The equipment for the 1K clean room cannot be provided in China, and a full set of construction, construction and equipment and consumables must be imported from abroad. The construction cost is 100,000 yuan per square meter. If you want to build a 100-square-meter real room, the construction cost alone will exceed the cost of 10 million yuan, which is not counting the real equipment. If you want to build a little smaller, the unit cost will increase dramatically, because the air conditioning system for 100 square meters is already the smallest. No matter how small the scale of the real yàn room is, it is even more uneconomical.

Not only is the construction cost expensive, but the construction is not finished. The maintenance cost of such a real room is 100,000 yuan a month.

After calculating the account inside and outside for a long time, Wang Zhongyang finally did not make up his mind.

"Mr. Wang, please." Zhou Shuo's quiet lamp king Zhongyang visited the clean room, and then stood in the center of the real room. There is a device about three meters long and two meters wide, which looks like a 0.8-micron process lithography machine produced by the Microelectronics Research Center of the Chinese Academy of Sciences.

It's just that now this lithography machine has changed from its original appearance in many places.

The most obvious place should be its workbench. The workbench that was originally used for lithography of 200mm monocrystalline silicon wafers has now been increased several times. The improvement of the transmission, alignment and other subsystems driven by this can be said to be no different from the redesign of a lithography machine system.

Thanks to Nikon's selfless design of the lithography machine, many places have modified the lithography machine with reference to Nikon's technology.

The complex prism system used to produce chips has been greatly streamlined thanks to the use of contact immersion lithography, while still maintaining the process level of 0.8 microns.

It is impossible to make LCD panels as complex as chips, and the lithography area of LCD displays far exceeds the wafers used to make chips.

Although Wang Zhongyang doesn't understand lithography machines, he has never eaten pork and has always seen pigs run. With the advantages of Panasonic's joint venture, he only went to Panasonic's LCD production plant once after wasting his boss's strength. Although it was not a pleasant visit, it still gave him a preliminary understanding of ITO lithography machines.

Compared with the production equipment of Panasonic in his memory, the equipment of Fanhan Group is not lost to them just by looking at it. Different from the tradition of turtle products, this modified 0.8 micron lithography machine has a blinding effect just by looking at the shape and painting.

Wang Zhongyang looked at this lithography machine almost greedily, which was completely different from the mood when he saw the Japanese lithography machine. This time, his heart was no longer depressed and uneasy, but full of pride and pride!

Lithography machine! Lithography machine! Lithography machine!

How many people's fates will change because of you. How many people's dreams will be realized by you. How many amazing technologies, with you can have hope of success!

Moreover, this is our lithography machine for the Chinese! You can stick your face to the monitoring window or even use a magnifying glass to look at its mechanics. No one will order you to step back five meters away, no one will search you as you enter and leave, and no one will remain silent on your questions......

"Hahahaha, good, good!" Wang Zhongyang said with a smile: "With this, we want the Japanese to know that the Chinese can also master the core technology and produce LCD panels!" ”

"Mr. Wang." Zhou Shuo stepped forward, patted Wang Zhongyang's shoulder, and said with a soft smile: "Sooner or later, the Japanese will know that today he will ignore us, and tomorrow we will make him unattainable!" ”

"Yes, we want to make the Japanese unworthy of us!" Wang Zhongyang's eyes burst out with dazzling light at this moment. (To be continued......)